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U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestUndesignated 1908-1924
Abadal 4.7244 5.5118 1159.47Dragonfly I A.B.C. 5.5000 6.5000 1389.86
Dragonfly IA A.B.C. 5.5000 6.5000 1389.86Gnat I A.B.C. 4.3307 4.7244 139.18
Mosquito A.B.C. 3.7402 4.7244 311.44Wasp I A.B.C. 4.5276 5.9055 665.54 667.00
Adler 4.5669 6.2992 825.50AL-24 Aeromarine 6/1921 5.0000 7.0000 3298.67
B Aeromarine 3.6250 5.1250 423.15B Aeromarine 3.6250 5.1250 423.15
T-6 Aeromarine 17 5.2500 6.5000 844.25U-6-D Aeromarine 10 4.2500 6.5000 553.26U-873 Aeromarine 2 36 4.6250 6.5000 873.61 873.00U-8-D Aeromarine 10 4.2500 6.5000 737.69
Aeromarine 4.3125 5.1250 449.15S-12 Aeromarine c.1920 1 2 6.2500 6.5000 2393.01A-1 Almen c.1920 2.5000 3.5000 240.53A-2 Almen c.1922 0.00A-3 Almen 0.00A-4 Almen 4.2500 5.5000 1404.44A-5 Almen 0.00
San Giorgio 4E-145 Ansaldo 5.7087 7.0866 1088.30San Giorgio 4E-150 Ansaldo 5.9055 7.0866 1164.65San Giorgio 4E-28 Ansaldo 5.5118 7.0866 2029.08San Giorgio 4E-28 Ansaldo 1921 5.5118 7.0866 2029.08
8V Antoinette 4.3307 4.1339 487.14Anzani 4.1339 4.7244 190.23
5 Anzani 0.0010 Anzani 4.1339 5.5118 739.77 738.0010 Anzani 4.1339 5.7087 766.1910 Anzani 4.5276 6.1024 982.4610 Anzani 5.5118 7.0866 1690.90
20B Anzani 5.5118 5.9055 2818.16Argus 5.1181 5.5118 680.38
As III O Opel 5.7087 6.2992 967.38Argus 5.7087 7.2835 1118.53
As IV Argus 6.1024 7.0866 1658.11Argus 0.00
Lynx I Armstrong Siddeley 5.0000 5.0000 687.22Jaguar I Armstrong Siddeley 5.0000 5.0000 1374.45
Ashmusen 0.00Austro-Daimler 5.1181 6.8898 850.48Austro-Daimler 5.3150 6.8898 917.16Austro-Daimler 5.3150 6.8898 917.16Austro-Daimler 5.3150 6.8898 1834.32
D35 Austro-Daimler 5.3150 6.8898 1834.32Austro-Daimler 7.0866 7.0866 1677.09Basse-Selve 4.9213 6.2992 718.92Basse-Selve 6.2992 7.8740 1472.35
6-1A Beardmore 1 4.7244 5.5118 579.74 578.46
Designation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Page 1 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Beardmore 5.1181 6.8898 850.486-2B Beardmore 5.5906 6.8898 1014.74 1014.54185 Becker 5.7087 6.2992 967.38
B.R.1 Bentley 4.7244 6.6929 1055.95B.R.2 Bentley 5.5118 7.0866 1521.81Bz I Benz 1/28/1914 1 4.1732 5.9055 484.67
Bz III Benz 5.1181 7.0866 874.78Bz IIIa Benz 5.5118 7.4803 1070.90Bz IV Benz 5.5118 7.4803 1070.90
Benz 5.7087 7.4803 1148.76Bz IIIbo Benz 4.9213 5.5118 838.74Bz IIIbv Benz 5.3150 5.3150 943.37
Bz V Benz 5.7087 6.8898 2116.14Bz Vb Benz 5.3150 5.9055 1572.28
VI Benz 5.7087 7.8740 2418.44VIv Benz 6.1024 7.8740 2763.52
BHP 5.7087 7.4803 1148.76Binetti 5.1181 6.2992 518.39
IIba B.M.W. 4.7244 6.2992 662.56IIIa B.M.W. 5.9055 7.0866 1164.65IV B.M.W. 6.2992 7.4803 1398.736 B.M.W. 6.2992 7.4803 1398.73
Breda 5.5118 7.0866 1352.72Bugatti 4.3307 6.2992 742.31Bugatti 4.3307 6.2992 1113.46
16 Bugatti 1 4.3307 6.2992 1484.62Cato 5.0000 6.0000 235.62
Christofferson 8/30/1916 4 4.7244 6.2992 662.56Clement Bayard 6.4961 8.8583 2348.71Clement Bayard 5.5118 7.0866 2705.44
7-Z Clerget 4.7244 5.9055 724.679-B Clerget 4.7244 6.2992 993.83 992.07
9-Ba Clerget 4.7244 6.2992 993.83 992.079-Bc Clerget 4.7244 6.2992 993.83 992.079-F Clerget 4.7244 6.6929 1055.959-Z Clerget 4.7244 6.2992 993.83
Clerget 4.7244 170 to 190 1291 to 144211Eb Clerget 4.7244 7.4803 1442.4411G Clerget 4.7244 7.4803 1442.4416X Clerget 5.1181 5.1181 1684.76C Colombo 0.00D Colombo 4.7244 6.2992 662.56E Colombo 5.1181 7.4803 923.38
Colombo 0.00C-2 Continental 1918 4.1250 5.2500 280.64E-7 Continental 1918 0.00
Lucifer Cosmos 5.7500 6.7500 525.84Mercury Cosmos 4.3750 5.8125 1223.31Jupiter Cosmos 5.7500 7.5000 1752.79Jupiter Cosmos 5.7500 7.5000 1752.79
Hercules Cosmos 6.5000 7.5000 4479.71E-4 Curtiss 1908 5.0000 5.0000 392.70
Page 2 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
E-4 Curtiss 1911 5.0000 5.0000 392.70 392.70H/K Curtiss 4.0000 5.0000 251.33 251.32
L Curtiss 1912 4.0000 5.0000 502.65N Curtiss 4.0000 5.0000 502.65O Curtiss 1912 4.0000 5.0000 502.65
OX Curtiss 1914 4.0000 5.0000 502.65
OX-2 Curtiss 4.0000 5.0000 502.65 502.80
OX-5 Curtiss 4.0000 5.0000 502.65 502.80OX-5 Willys Morrow 4.0000 5.0000 502.65 502.80OX-5 Willys Overland 4.0000 5.0000 502.65 502.80OXX Curtiss 4.2500 5.0000 567.45
OXX-2 Curtiss 4.2500 5.0000 567.45 567.44OXX-3 Curtiss 4.2500 5.0000 567.45OXX-5 Curtiss 4.2500 5.0000 567.45OXX-6 Curtiss 4.2500 5.0000 567.45
S Curtiss 1911 4.0000 5.0000 376.99 377.00V Curtiss 5.0000 7.0000 1099.56
VX Curtiss 5.0000 7.0000 1099.56Geared VX Curtiss 1917 5.0000 7.0000 1099.56
VXX Curtiss 5.0000 7.0000 1099.56V2 Curtiss 5.0000 7.0000 1099.56
V2-3 Curtiss 5.0000 7.0000 1099.56 1099.56V2-10 Curtiss 5.0000 7.0000 1099.56
V2-C10 Curtiss 5.0000 7.0000 1099.56V-4 Curtiss 1917 1 5.0000 7.0000 1649.34V-6 Curtiss 5.0000 7.0000 1099.56V-7 Curtiss 5.0000 7.0000 1099.56AB Curtiss 1916 4.0000 5.5000 829.38C-6 Curtiss 4.5000 6.0000 572.56K-6 Curtiss 1919 4.5000 6.0000 572.56
D-1200 Curtiss 1917 4.5000 6.0000 1145.11K-12 Curtiss 1917 4.5000 6.0000 1145.11 1145.00K-12 Curtiss 4.5000 6.0000 1145.11 1145.00C-12 Curtiss 1920 2 4.5000 6.0000 1145.11
CD-12 Curtiss 1921 3 4.5000 6.0000 1145.11
D-12 Curtiss 1922 4.5000 6.0000 1145.11 1145.00D-12A Curtiss 4.6250 6.0000 1209.61 1209.60D-12C Curtiss 4.5000 6.0000 1145.11D-12D Curtiss 4.5000 6.0000 1145.11
Inverted D-12 Curtiss c.1923 4.5000 6.0000 1145.11 1145.00R-6 Curtiss 1921 7.0000 8.0000 1847.26D III Daimler 5.5118 6.2992 901.81
D IIIa Daimler 5.5118 6.2992 901.81D IIIa Daimler 5.5118 6.2992 901.81D IV Daimler 5.5118 6.2992 1202.42
D IVa Daimler 6.2992 7.0866 1325.11Damblanc 4.9606 5.9055 1255.49de Dion 6.6929 7.4803 4210.76
De Palma 0.00
Page 3 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-4 De Palma 0.00Victory C-6 Dodge Tool c.1918 5.0000 6.0000 706.86
4 Duesenberg 4.7500 7.0000 496.184 Duesenberg 1916 2 4.7500 7.0000 496.184 Duesenberg 1917 2 4.7500 7.0000 496.18
Bugatti Duesenberg 1/4/1918 40 1960 4.3307 6.2992 1484.62 1484.29H Duesenberg 4/1918 6/1918 1 6.0000 7.5000 3392.92
H-2 Duesenberg 6/1918 1/1919 1 6.0000 7.5000 3392.92King Aeronautical Engine Co. 4/1918 5 5.5000 7.0000 1995.70King Duesenberg 6/1918 5 5.5000 7.0000 1995.70
Attendu Airship Diesel Eastern Engineering Co. c.1924 2/1925 1 5.5000 6.5000 308.86W-1 Engineering Division 4/1921 4 5.5000 6.5000 2779.72 2778.66
W-1A Engineering Division ~10-11/1921 6 5.5000 6.5000 2779.72 2778.66W-1B Engineering Division 1923 10 5.5000 6.5000 2779.72 2778.66W-2 Engineering Division 1923 2 6.5000 7.5000 4479.71W-3 Engineering Division 0.00
Farman 4.3307 6.2992 742.31Farman 4.7244 6.2992 1325.11Farman 4.7244 7.0866 2236.13
A-10 Fiat 4.7244 5.5118 579.74A-12 Fiat 6.2992 7.0866 1325.11 1326.06A-12 Fiat 6.2992 7.0866 1325.11 1326.06A-12 Fiat 6.2992 7.0866 1325.11 1326.06A-12 Fiat 6.2992 7.0866 1325.11 1326.06
A-12bis Fiat 6.2992 7.0866 1325.11A-14 Fiat 6.6929 8.2677 3490.50A-15 Fiat 4.3307 5.9055 1043.87 1112.50
A-15R Fiat 4.7244 5.9055 1242.29A-18 Fiat 5.1181 5.9055 1093.48
San Giorgio Fiat 5.3150 6.6929 1781.91Fima 4.6457 5.9055 800.82Fima 5.0394 7.0866 1130.76
Adriatic Galloway 5.7087 7.4803 1148.76Atlantic Galloway 5.7087 7.4803 2297.52
BHP Galloway 5.7087 7.4803 1148.76Goe VI Goebel 3.7008 3.7402 281.62
Goebel 4.1339 4.1339 388.38Goe II Goebel 5.4331 5.9055 958.38Goe III Goebel 5.4331 7.4803 1560.78
7- Gnome 4.8819 5.5118 722.20B-2 Gnome 4.3307 5.9055 782.90
Gamma-Gamma Gnome 3/13/1913 4.8819 5.5118 1444.40Lambda-Lambda Gnome 5/14/1913 8/7/1913 1 4.8819 5.5118 1444.40
9-N Gnome 4.5276 6.6929 969.799-N Gnome 4.5276 6.6929 969.79 970.389-N Gnome 4.5276 6.6929 969.79 970.38
9-Nb Gnome 4.5276 6.6929 969.79 970.389-Nc Gnome 4.5276 6.6929 969.79 970.38
Gnome 4.4094 6.6929 919.8511- Gnome 4.5276 6.6929 1185.29
Gnome 4.8031 5.9055 1926.07Gnome 4.5276 6.6929 1939.57
Page 4 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Gnome 5.5118 6.6929 3193.92
Gnome B-2 General Vehicle 1917 111 4.3307 5.9055 782.90 787.27Gnome B-2 Aeronautical Engine Co. 1918 121 79 4.3307 5.9055 782.90 787.27
Gnome Pittsburgh Model Engine 1918 79 4.3307 5.9055 782.90Gnome 9-N General Vehicle c.early 1918 5000 4.5276 6.6929 969.79
Green 5.5118 5.9843 856.72Green 5.6000 7.0000 1034.46Green 5.5906 7.0079 2064.27Gyro 4.3125 4.7500 485.67
L Gyro ~4/1915 1 4.5000 6.0000 858.83A-2 Hall-Scott 4.0000 4.0000 402.12
A-5 Hall-Scott 5.0000 7.0000 824.67 824.67A-5 Hall-Scott 5.0000 7.0000 824.67 824.67
A-5A Hall-Scott 5.2500 7.0000 909.20A-5A Special Hall-Scott 5.2500 7.0000 909.20
A-7 Hall-Scott 5.0000 7.0000 549.78
A-7A Hall-Scott 5.2500 7.0000 606.13 606.14A-7A Experimental Hall-Scott 2 5.2500 7.0000 606.13 606.14
A-8 Hall-Scott 5.0000 7.0000 1649.34L-4 Hall-Scott 5.0000 7.0000 549.78L-6 Hall-Scott 5.0000 7.0000 824.67
Hansa 5.0000 7.0079 2201.59Type S Headstrom 0.00
II Hiero 5.3150 7.0866 943.378-A Hispano-Suiza 4.7244 5.1181 717.77 718.88
8-Aa Hispano-Suiza 4.7244 5.1181 717.77 718.888-Ab Hispano-Suiza 4.7244 5.1181 717.77 718.888-Ac Hispano-Suiza 4.7244 5.1181 717.77 718.888-B Hispano-Suiza 4.7244 5.1181 717.77 718.88
8-Ba Hispano-Suiza 4.7244 5.1181 717.77 718.888-Bba Hispano-Suiza 4.7244 5.1181 717.77 718.88
8- Hispano-Suiza 4.7244 5.1181 717.77 718.888-Bc Hispano-Suiza 4.7244 5.1181 717.77 718.888-Be Hispano-Suiza 4.7244 5.1181 717.77 718.888-Bec Hispano-Suiza 4.7244 5.1181 717.77 718.888-Cb Hispano-Suiza 4.7244 5.1181 717.77 718.888-F Hispano-Suiza 5.5118 5.9055 1127.27
8-Fb Hispano-Suiza 5.5118 5.9055 1127.27V.4A Isotta-Fraschini 5.1181 7.0866 874.78V.4B Isotta-Fraschini 5.1181 7.0866 874.78V.4B Bianchi 5.1181 7.0866 874.78V.5 Isotta-Fraschini 5.1181 7.0866 1166.37V.6 Isotta-Fraschini 5.5118 7.0866 1014.54V.6 Isotta-Fraschini 5.5118 7.0866 1014.54V.7 Isotta-Fraschini 5.5118 7.0866 2029.08V.8 Isotta-Fraschini 5.9055 6.6929 1099.95V.9 Isotta-Fraschini 5.9055 7.0866 1164.65
Jaenson 5.9055 7.8740 1725.41
Page 5 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Joffert 5.1181 6.2992 2073.554A Kessler 1917 1 4 4.7500 5.0000 354.416A Kessler 1917 1 4 4.7500 5.0000 531.62
6B-400 Kessler 1917 5 5.5000 6.0000 855.30Kinner 0.00
K-1 Kinner 0.00Kinner 0.00
5RA Kinney-Noble c.1922 1927 6 4.5000 4.0000 318.0912 Knox 4.7500 7.0000 1488.53
Lancia 4.7244 7.0866 1490.75Lancia 4.7520 7.0866 1508.19
A-3 Lawrance 1916 1 4.0000 6.0000 150.80A-3 Excelsior 450 4.0000 6.0000 150.80B Lawrance 4.0000 6.0000 226.19J Lawrance 2/28/1920 5 4.5000 5.5000 787.26 787.23
J-1 Lawrance 1/30/1921 110 4.5000 5.5000 787.26 787.23J-2 Lawrance 2 4.8750 5.5000 923.94 787.23L Lawrance 1921 4.2500 5.2500 223.43
L-1 Lawrance 4.2500 5.2500 223.43L-2 Lawrance 2 4.2500 5.2500 223.43 223.44L-3 Lawrance 4.2500 5.2500 223.43L-4 Lawrance 4.2500 5.2500 223.43L-4 Lawrance 4.2500 5.2500 223.43L-5 Lawrance 4.2500 5.2500 223.43N Lawrance 4.2500 4.2500 120.58
N-2 Lawrance 1917 4.2500 4.2500 120.58R Lawrance 1919 1920 1 4.2500 5.2500 670.30
R-1 Lawrance 3/25/1920 1921 3 4.2500 5.2500 670.30 675.00T-2 Lawrance c.1920 0.00
Maedler Lawrance c.1920 0.00Maedler Lawrance c.1920 0.00
Le Maitre & Gerard 7.0866 8.2677 2608.81Type Z Le Rhone 3.3465 4.1339 327.23
7 Le Rhone 4.1339 5.5118 517.84
9-C Le Rhone 4.1339 5.5118 665.79 664.299-J Le Rhone 4.4094 6.6929 919.85 922.289-J Le Rhone 4.4094 6.6929 919.85 922.28
9-Jb Le Rhone 4.4094 6.6929 919.85 922.289-Jby Le Rhone 4.4094 6.6929 919.85 922.28
Le Rhone 4.8819 7.0866 1193.84Le Rhone
9-R Le Rhone 4.5276 6.6929 969.79Le Rhone 5.3150 8.2677 1650.89Le Rhone 4.5276 6.6929 1939.57
Le Rhone 9C Union Switch & Signal 1917 2500 1400 4.1339 5.5118 665.79 664.29Le Rhone 9C Tampier Union Switch & Signal 85 4.1339 5.5118 665.79 664.29
Liberty 4B Hudson 2 5.0000 7.0000 549.78 550.00Liberty 6A Thomas-Morse 1918 6 8 5.0000 7.0000 824.67 824.46Liberty 6B Wright 1920 10 5.0000 7.0000 824.67 824.46
Page 6 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
U.S.A.8 Packard 6 5.0000 7.0000 1099.56 824.46
Liberty 8A Buick 15 4985 5.0000 7.0000 1099.56 1099.28Liberty 8A Engineering Division 8 5.0000 7.0000 1099.56 1099.28Liberty 8A Willys Overland 3000 5.0000 7.0000 1099.56 1099.28Liberty 8A Winton 1000 5.0000 7.0000 1099.56 1099.28U.S.A.12 Packard 5 5.0000 7.0000 1649.34 1648.92
Liberty 12A 5.0000 7.0000 1649.34 1648.92
Liberty 12A Buick 1000 5.0000 7.0000 1649.34 1648.92Liberty 12A Cadillac 1000 5.0000 7.0000 1649.34 1648.92Liberty 12A Duesenberg 11/20/1917 1000 5.0000 7.0000 1649.34 1648.92Liberty 12A Ford 3950 8050 5.0000 7.0000 1649.34 1648.92Liberty 12A Lincoln 6493 10500 5.0000 7.0000 1649.34 1648.92Liberty 12A Nordyke & Marmon 1000 4000 5.0000 7.0000 1649.34 1648.92Liberty 12A Packard 4999 5.0000 7.0000 1649.34 1648.92Liberty 12A Trego Motors 1 499 5.0000 7.0000 1649.34 1648.92Liberty 12A Willys Overland 5000 5.0000 7.0000 1649.34 1648.92
Liberty 12A 5.0000 7.0000 1649.34 1648.92
Liberty 12A 5.0000 7.0000 1649.34 1648.92
Liberty 12A 5.0000 7.0000 1649.34 1648.92Liberty 12B Packard 206 100 5.0000 7.0000 1649.34 1648.92Liberty 12C Packard 3 5.0000 7.0000 1649.34 1648.92Liberty 12E Packard 1 2 5.0000 7.0000 1649.34 1648.92
Liberty 12N Packard 1501 5.0000 7.0000 1649.34 1648.92Liberty 12N Lincoln 7 5.0000 7.0000 1649.34 1648.92Liberty 12S Packard 342 5.0000 7.0000 1649.34 1648.92Liberty 12 Aeromarine c.1922 35 5.0000 7.0000 1649.34 1648.92
Liberty 12 Modified Packard 1 1 5.0000 7.0000 1649.34 1648.92Liberty 12 Inverted Engineering Division 1919 18 5.0000 7.0000 1649.34 1648.92Liberty 12 Inverted Allison 1924 35 5.0000 7.0000 1649.34 1648.92Liberty 12 2-Speed Allison 1923 1 5.0000 7.0000 1649.34 1648.92
Liberty 12 Spur Gear Allison 1921 1 5.0000 7.0000 1649.34 1648.92Liberty 24 Engineering Division 1 5.0000 7.0000 3298.67 3297.84
Gallaudet 5.0000 7.0000 4948.01Lorraine-Deitrich 4.7244 5.5118 772.98
8B Lorraine-Deitrich 4.7244 6.6929 938.62 937.408Bb Lorraine-Deitrich 4.7244 6.6929 938.62 937.40
Page 7 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
8Bba Lorraine-Deitrich 4.7244 6.6929 938.62 937.40Lorraine-Deitrich 4.7244 6.8898 966.23
12 Lorraine-Deitrich 4.7244 6.6929 1407.93Lorraine-Deitrich 4.7244 6.8898 1449.34Lorraine-Deitrich 4.7244 6.8898 1449.34Lorraine-Deitrich 4.7244 6.8898 1449.34Lorraine-Deitrich 4.9606 7.8740 1826.17Lorraine-Deitrich 4.9606 7.8740 1826.17Lorraine-Deitrich 5.7087 7.8740 2418.44Lorraine-Deitrich 4.9606 7.8740 3652.34
Mana III MAN 5.5118 6.6929 958.18Mana IIIa MAN 5.9055 6.6929 1099.95
8200 Martin 4.6250 7.0000 940.81Maybach 6.2992 6.6929 1251.49Maybach 5.9055 7.4803 1229.35Maybach 0.00Maybach 6.2992 7.4803 1398.73
Mb.IVa Maybach 6.4961 7.0866 1409.23Mb.IVa Maybach 6.4961 7.0866 1409.23VL-1 Maybach 1923 9 5.5118 7.0866 2029.08VL-2 Maybach 1927 5.5118 7.0866 2029.08
4 Mead Engine Co. ~7/2/1912 1 4.5000 4.7500 302.18Miller 1917 1 5.0000 6.0000 1413.72
M-42 Morehouse c.1923 3.0000 3.0000 42.41Muffly c.1912 1? 4.3750 0.00
Murray & Tregurtha c.1919 6C III N.A.G. 5.4331 7.4803 1040.52Lion Napier c.1922 5 5.5000 5.1250 1461.14Cub Napier 6.2500 7.5000 3681.55Ur.II Oberursel 4.4094 6.6929 919.85Ur.III Oberursel 4.4094 6.6929 1124.26U.IV Oberursel 4.8031 5.3150 770.43
Opel 0.00Opel 5.7087 7.4803 1148.76
O-8 Orlo c.1916 1? 4.5000 6.0000 763.41Otis-Piere 5.1181 6.2992 1555.17
1A-258 Packard 12/1921 1922 1 6.6250 7.5000 258.54452 Packard 1916 1 4.0000 6.0000 452.39
1A-744 Packard 11/4/1919 10/30/1919 4 4.7500 5.2500 744.261A-825 Packard 2 2 5.0000 5.2500 824.671A-905 Packard 1916 1 4.0000 6.0000 904.78
1A-1116 Packard 11/4/1919 2/2/1920 4 4.7500 5.2500 1116.39 1116.36
1A-1237 Packard 1/11/1921 50 3 5.0000 5.2500 1237.00 1236.961A-1237 Packard 5.0000 5.2500 1237.00 1236.962A-1237 Packard 1 5.0000 5.2500 1237.00 1236.961A-1300 Packard 12/9/1922 1 5.1250 5.2500 1299.63
1A-1300 Modified Packard 5.3750 5.3750 1463.55
1A-1500 Packard 1924 ~29 2 5.3750 5.5000 1497.581A-1500 Inverted Packard 5.3750 5.5000 1497.581A-1500 Geared Packard 5.3750 5.5000 1497.58
Page 8 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
2A-1500 Packard 1925 ~200 5.3750 5.5000 1497.582A-1500 Inverted Packard 5.3750 5.5000 1497.582A-1500 Geared Packard 5.3750 5.5000 1497.58
3A-1500 Packard 1927 ~19 5.3750 5.5000 1497.583A-1500 Inverted Packard 5.3750 5.5000 1497.583A-1500 Geared Packard 5.3750 5.5000 1497.58
2A-1530 Packard 2A-1500 5.3750 5.5000 1497.58 1530.401A-1551 Packard 1921 1924 4 6.6250 7.5000 1551.221A-1551 Packard 1924 9 4 6.6250 7.5000 1551.221A-2025 Packard 11/4/1919 11 5.7500 6.5000 2025.44 2025.421A-2200 Packard 1923 1 6.0000 6.5000 2205.401A-2500 Packard 1924 ~6 6.3750 6.5000 2489.69
1A-2500 Geared Packard 6.3750 6.5000 2489.692A-2500 Packard 6.3750 6.5000 2489.69
2A-2500 Geared Packard 6.3750 6.5000 2489.693A-2500 Packard 6.3750 6.5000 2489.69
3A-2500 Geared Packard 6.3750 6.5000 2489.694A-2500 Packard 1927 1928 1 6.3750 6.5000 2489.691A-2540 Packard 1A-2500 6.3750 6.5000 2489.69 2539.552A-2540 Packard 2A-2500 6.3750 6.5000 2489.691A-2775 Packard 1927 1 5.3750 5.0000 2722.881A-2775 Packard 1927 1 5.3750 5.0000 2722.882A-2775 Packard 1929 1 5.3750 5.0000 2722.88
V12J Panhard-Levassor 4.5276 6.6929 1293.05V12J Panhard-Levassor 4.5276 6.6929 1293.05
Panhard-Levassor 5.7087 6.6929 2055.68Panhard-Levassor 5.7087 6.6929 2740.90
8-Aa Peugeot 3.9370 7.0866 690.16 685.34L41 Peugeot 6.2992 7.4803 2797.46
16AJ Peugeot 4.7244 6.2992 1766.82Peugeot 5.1181 6.6929 2203.15Peugeot 5.1181 6.2992 2073.55Peugeot 6.2992 6.6929 2502.99
Pierce-Arrow 0.001A R.A.F. 3.9370 5.5118 536.791B R.A.F. 4.1339 5.5118 591.813A R.A.F. 4.5000 5.5000 1049.684A R.A.F. 3.9370 5.5118 805.194D R.A.F. 3.9370 5.5118 805.195 R.A.F. 3.9370 5.5118 805.19
E-6 Rausie 5.0000 6.0000 706.868C Renault 1912 12 3.7795 4.7244 424.048C Renault 1912 3.7795 4.7244 424.04
Renault 3.9370 4.7244 460.118Ca Renault 4.1339 5.1181 549.548Ca Renault 4.1339 5.1181 549.5412D Renault 3.5433 5.5118 652.20
12Da Renault ~3/1913 8/1913 1 3.7795 5.5118 742.06Renault 0.00
8Gc Renault 4.9213 5.9055 898.65 893.708Gdy Renault 4.9213 5.9055 898.65 893.7012Dc Renault 4.1339 5.1181 824.31 823.08
Page 9 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
12- Renault 4.9213 5.9055 1347.97Renault 0.00
12Fcx Renault 4.9213 5.9055 1347.97 1348.3212Fcy Renault 4.9213 5.9055 1347.97 1348.3212Fe Renault 4.9213 5.9055 1347.97 1348.3212- Renault 5.1181 5.5118 1360.7712- Renault 5.2756 7.0866 1858.8812- Renault 5.2756 7.0866 1858.8812M Renault 5.9055 6.8898 2264.6012- Renault 6.2992 7.0866 2650.22
R.E.P. 3.3465 3.7402 164.486 Roberts ~12/1913 4.5000 5.0000 477.13
6X Roberts ~5/1915 5.0000 5.0000 589.05Condor Rolls-Royce 5.5000 7.5000 2138.25
Condor I Rolls-Royce 5.5000 7.5000 2138.25Condor I Rolls-Royce 5.5000 7.5000 2138.25Hawk I Rolls-Royce 4.0000 6.0000 452.39Hawk II Rolls-Royce 4.0000 6.0000 452.39
190 Rolls-Royce 4.0000 5.7500 867.08Rolls-Royce 4.0000 5.7500 867.08
Falcon I Rolls-Royce 4.0000 5.7500 867.08Falcon II Rolls-Royce 4.0000 5.7500 867.08Falcon III Rolls-Royce 4.0000 5.7500 867.08Eagle I Rolls-Royce 4.5000 6.5000 1240.54Eagle II Rolls-Royce 4.5000 6.5000 1240.54Eagle III Rolls-Royce 4.5000 6.5000 1240.54Eagle IV Rolls-Royce 4.5000 6.5000 1240.54Eagle V Rolls-Royce 4.5000 6.5000 1240.54Eagle VI Rolls-Royce 4.5000 6.5000 1240.54Eagle VII Rolls-Royce 4.5000 6.5000 1240.54Eagle VIII Rolls-Royce 4.5000 6.5000 1240.54
M9 Salmson 3/13/1913 1914 1 4.7244 5.5118 869.60Salmson 4.7244 5.5118 869.60Salmson 4.8031 5.5118 898.83
R9 Salmson 4.9213 5.5118 943.58A9 Salmson 7/4/1916 1 5.5118 6.6929 1437.26
9RA Salmson 4.9213 6.6929 1145.78AB9 Salmson 4.9213 6.6929 1145.78Z9 Salmson 4.9213 6.6929 1145.78 1146.42
C.U. 9-ZM Salmson 4.9213 6.6929 1145.78 1146.42Z9 Salmson 4.9213 6.4961 1112.08P9 Salmson 4.9213 5.5118 943.58
AZ9 Salmson 5.5118 6.6929 1437.26Z18 Salmson 4.9213 6.6929 2291.55
Saunion 7.4803 7.8740 2076.24Pacific Siddeley 5.7087 7.4803 2297.52Tiger Siddeley 6.2992 7.0866 2650.22Twin Siddeley 5.0000 5.0000 196.35
Puma Siddeley 5.7087 7.4803 1148.76Sh.4 Siemens-Halske 3.9370 4.7244 287.57Sh.5 Siemens 3.9370 4.7244 402.59
Sh III/a Siemens-Halske 4.8819 5.5118 1134.89
Page 10 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Sizaire-Berwick 5.1181 6.6929 1101.581A SPA 5.3150 6.6929 2375.882A SPA 5.3937 6.6929 1223.406A SPA 5.3150 6.6929 890.96
Sperry c.1920 0.00John W. Smith Radial Static Motors 1916 2 2 4.5000 5.5000 874.74John W. Smith Radial Static Motors 5.5000 6.5000 1544.29John W. Smith Radial Static Motors 4.5350 6.2340 1006.96
Sterling 2 2 0.00D-4 Sturtevant 1911 4.5000 4.5000 286.28D-6 Sturtevant 4.5000 4.5000 429.425 Sturtevant 4.0000 5.5000 552.92
5A Type 8 Sturtevant 4.0000 5.5000 552.92
5A Sturtevant 4.0000 5.5000 552.92 552.885A 4 1/2 Sturtevant 4.5000 5.5000 699.79
Dyak Sunbeam 4.7244 5.1181 538.33Amazon I Sunbeam 4.3307 6.2992 556.73Ghurka Sunbeam 3.9370 5.9055 862.70
Cossack Sunbeam 4.3307 6.2992 1113.46Cossack III Sunbeam 4.3307 6.2992 1113.46Crusader Sunbeam 3.5433 5.9055 465.86Nubian Sunbeam 3.7402 5.3150 467.15Arab I Sunbeam 4.7244 5.1181 717.77Arab I Austin 4.7244 5.1181 717.77Arab II Sunbeam 4.7244 5.1181 717.77Afridi Sunbeam 3.5433 5.3150 628.91
12 Sunbeam 4.3307 6.2992 1113.46Manitou Sunbeam 4.3307 5.3150 939.48Maori IV Sunbeam 3.9370 5.3150 776.43Matabele Sunbeam 4.8031 6.2992 1369.65Mohawk Sunbeam 3.5433 5.9055 698.79
Sikh Sunbeam 7.0866 8.2677 3913.22Viking Sunbeam 4.3307 6.2992 1670.19Zulu Sunbeam 3.9370 5.9055 575.14
Thomas 0.008 Thomas 4.0000 5.5000 552.92
88 Thomas 4.1250 5.5000 588.02 588.00890 Thomas-Morse 4.8125 6.0000 873.12V12 Tosi 5.1181 7.4803 1846.76
Union 4.7500 6.5000 691.10Van Blerck c.1919 4
Type HS 34 VNV 4.7244 5.1181 1076.65Walker 1921 1 0.00
Weinberg 1920 1921 5.8750 6.0000 1463.86Vertical Marine Winton 0.00
Wisconsin 5.0000 6.5000 765.76Wisconsin 5.0000 6.5000 1531.53
Wright 0.00Wright 1917 495 4.7244 5.1181 717.77Wright 1917 5 4.7244 5.1181 717.77
Page 11 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Wright 1917 4000 4.7244 5.1181 717.77
A Wright 1917 2507 4.7244 5.1181 717.77B Wright 1917 4.7244 5.1181 358.88
C-1 Wright 1917 1 4.7244 5.1181 717.77D-1 Wright 1917 1 4.7244 5.1181 717.77D-1 Wright 1921 1922 3 7.0000 8.0000 1847.26D-2 Wright 1917 1 4.7244 5.1181 717.77
E Wright 1750 2250 4.7244 5.1181 717.77
E-2 Wright 4.7244 5.1181 717.77E-3 Wright 4.7244 5.1181 717.77E-4 Wright 4.7244 5.1181 717.77
E-4A Wright 4.7244 5.1181 717.77F Wright 4.7244 5.1181 717.77
Gale Wright 4.2500 5.2500 223.43
H Wright 1917 500 4500 5.5118 5.9055 1127.27 1126.42H Pierce-Arrow 1918 5000 5.5118 5.9055 1127.27
H-2 Wright 5.5118 5.9055 1127.27H-3 Wright 1919 224+ 5.5118 5.9055 1127.27
I Wright 1917 1000 4.7244 5.1181 717.77 718.88J-1 Wright 4.5000 5.5000 787.26J-2 Wright 2 4.8750 5.2500 881.94J-3 Wright c.1923 4.5000 5.5000 787.26J-4 Wright c.1924 4.5000 5.5000 787.26
J-4A Wright c.1925 4.5000 5.5000 787.26J-4B Wright 4.5000 5.5000 787.26J-5 Wright Whirlwind 9 4.5000 5.5000 787.26
J-5 Wright Whirlwind 9 4.5000 5.5000 787.26J-6-5 Wright Whirlwind 5 5.0000 5.5000 539.96J-6-7 Wright Whirlwind 7 5.0000 5.5000 755.95J-6-9 Wright Whirlwind 9 5.0000 5.5000 971.93
K Wright 5.5118 5.9050 1127.17 1126.42K-2 Wright 5.5118 5.9050 1127.17 1126.42M Wright 1 5.5118 5.9055 1127.27
P-1 Wright c.1923 1924 6.0000 6.5000 1654.05 1654.00P-2 Wright Cyclone 6.0000 6.5000 1654.05 1654.00P-2 Wright Cyclone 6.0000 6.5000 1654.05 1654.00R-1 Wright 1920 1921 5.6250 6.5000 1453.75 1453.70R-1 Wright c.1922 5.6250 6.5000 1453.75 1453.70R-1 Wright c.1923 1? 5.6250 6.5000 1453.75 1453.70R-1 Wright c.1923 1 5.6250 6.5000 1453.75 1453.70R-2 Wright 5.6250 6.5000 1453.75 1453.70
Simoon Wright c.1924 5.5000 5.5000 1176.04 1176.00T Wright 1921 5.7500 6.2500 1947.54 1947.48
T-2 Wright 43 5.7500 6.2500 1947.54 1947.48T-2B Wright 5.7500 6.2500 1947.54 1947.48
Page 12 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
T-3 Wright 1923 103 5.7500 6.2500 1947.54 1947.48T-3A Wright 70 5.7500 6.2500 1947.54 1947.48T-3B Wright 5.7500 6.2500 1947.54 1947.48T-4 Wright 5.7500 6.2500 1947.54 1947.484 Wright Brothers 1908 4.3750 4.0000 240.53 240.524 Wright Brothers 1909 4.3750 4.0000 240.53 240.526 Wright Brothers 1911 4.3750 4.0000 360.79 360.78
6-60 Wright Brothers 1913 4.3750 4.5000 405.89 360.78
Note: Early types above with no aircraft listed and source 178 may not have been purchased or tested.
Army-Navy Designation System 1924-Present
Double OpposedXH-1850-2 Fairchild-Ranger 1943 4.3750 5.1250 1849.06
H-2240 P&W X-1800 4.8750 5.0000 2239.86XH-2470-1 Lycoming 1938 5.2500 4.7500 2467.82H-2470-2H-2470-3
XH-2470-4H-2470-5H-2470-7H-2600-1 P&W X-1800-SA2G 5.2500 5.0000 2597.70
XH-2600-3H-2600-3 X-1800-A2G
XH-2600-5H-2600-5 X-1800-A2G
XH-2860-1 Continental 5.5000 5.0000 2851.00H-3130-1 P&W 1937 XL-3130? H-3130-A4G 5.5000 5.5000 3136.09H-3730 P&W c.1939 H-3130 6.0000 5.5000 3732.21
XH-4070-1 Menasco 6.0000 6.0000 4071.50XH-4940 Lycoming 1940 5.2500 4.7500 4935.64H-9350-1 Studebaker 3 8.0000 7.7500 9349.38
Inverted VXV-715-2 NAF 8/1935 2 4.0000 4.7500 716.28V-770-1 Ranger SGV-770-B3 4.0000 5.1250 772.83V-770-2 6/1936V-770-3 SGV-770-C1
XV-770-4V-770-5 SGV-770-DC
XV-770-6V-770-6
XV-770-7V-770-7 SGV-770-C1V-770-8
XV-770-9V-770-9 SGV-770-D4
V-770-10 SGV-770-D1V-770-11 SGV-770-C1BV-770-13V-770-15 SGV-770-C1C
Page 13 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-770-17 SGV-770-D4SGV-770C-1
SGV-770 c.1932XV-920 Ranger 1943 4.3750 5.1250 924.53
XIV-1430-1 Continental 1939 5.5000 5.0000 1425.50XIV-1430-3XIV-1430-5
I-1430-7I-1430-9
I-1430-11XIV-1430-13XIV-1430-15XIV-1430-17XIV-1430-19
I-1430-21 I-1430-A1I-1430-23I-1430-25 I-1430-9AIV-1440 Continental 0.00
XIV-2040-1 Menasco 0 6.0000 6.0000 2035.75XIV-2220-1 Chrysler 4/4/1941 1 5.8000 5.2500 2219.35XI-2220-1 1XI-2220-3 2XI-2220-5 2XI-2220-7 2XI-2220-9 1
XI-2220-11 1 1
InlineYL-330-1 Martin 333 4.5000 5.2500 333.99YL-365-1 Menasco 4.7500 5.1250 363.27L-365-1 Menasco Pirate C-4-4LA
XL-365-2 Pirate C-4SL-365-3L-375-1 DeHavilland Gipsy Major I 4.6500 5.5000 373.61L-390 Ranger 6-390-D 4.0000 5.1200 386.04L-410 Ranger 6-410-B1 4.1250 5.1250 410.94L-410 6-410-B2L-410 6-410-B3
L-440-1 Ranger 6-440-C2 4.1250 5.5000 441.01L-440-2 6-440-C5L-440-3 6-440-C5L-440-5 6-440-C5L-440-7 6-440-C5L-440-9 6-440-C2
L-440-11 6-440-C5XL-510-1 Miller A-510-B3 4.2500 4.5000 510.71
L-825 Liberty Liberty 6 5.0000 7.0000 824.67
Opposed PistonO-15-1 Righter 2-GS-17 2.2500 2.1250 16.90O-15-1 HerkimerO-15-3 Righter 2-GS-17
Page 14 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
O-15-3 McCullochO-15-5O-15-7
XO-40-1 Muncie Gear 0.00O-45-1 Righter 2-S-45 3.2500 2.7500 45.63O-45-1 KiekhaeferO-45-1 MenascoO-45-3 Kiekhaefer 0 KB-35X
O-45-35YO-65-2 Nelson H-63 2.6875 2.7500 62.40YO-90-1 McCulloch 4300C 3.0000 3.1250 88.36O-90-1 McCulloch 4300CO-90-2O-90-4
YO-95-2 Porsche 3.2480 2.9134 96.56YO-95-4YO-95-6 Type 678/4YO-95-8
O-100-1 McCulloch 4318A 3.1875 3.1250 99.75O-100-2O-100-3 Northrop 4318F
YO-100-4 c.1959O-145-B Lycoming 3.6250 3.5000 144.49
O-145-B1 LycomingO-145-B2 Lycoming
GO-145-C2 LycomingO-150 Franklin 4AC-150 3.6250 3.6250 149.65
O-150-2 McCulloch 6318 3.1875 3.1250 149.62O-150-4 McCulloch TC6150-J-2
O-150-4A McCullochO-170-1 Continental A-80-8 3.8750 3.6250 171.00O-170-2
YO-170-3 A-65-8
O-170-3 A-65-8O-170-5 A-65-9O-170-7 A-75-14O-175-1 Franklin 4AC-176-BA2 4.0000 3.5000 175.93O-180-1 Franklin 4AC-176-F3 4.0000 3.5000 175.93O-190-1 Continental C-65-8F4 4.0625 3.6250 187.95
YO-200-1O-200-1 Franklin 4AC-199-E4 4.2500 3.5000 198.61O-200-3 4AC-199-E4
XO-200-5 4AGC-199-E3O-200-5 4AGC-199-E3O-200-7 4AC-199-E3O-200-9 4AC-199-E3O-200-A Continental 4.0625 3.8750 200.91O-205-1 Continental C-90-8F 4.0625 3.8750 200.91O-235-1 Lycoming 4.3750 3.8750 233.01O-235-2
Page 15 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
IO-235-L2CO-255 Continental A-100 3.8750 3.6250 256.50
O-290-1 Lycoming O-290-B 4.8750 3.8750 289.31O-290-3 O-290-C
XO-290-5O-290-7O-290-9
O-290-11 O-290-DO-290-D
O-290-D2O-300-1 Franklin 6AC-298-F3 4.2500 3.5000 297.91
XO-300-2O-300-3 6ACT-298-J4
XO-300-4O-300-5 6ACTS-298-K4O-300-7
XO-300-9O-300-9 6ACG-298-P5
YO-300-11O-300-11 6ACT-298-J5O-300-DO-315 Continental 5.0000 4.0000 314.16
GO-315O-320-E2D Lycoming 5.1250 3.8750 319.75
O-335-1 Franklin 6V4-178 4.5000 3.5000 333.99O-335-2 6V4-200O-335-3 6V4-178O-335-4 6V4-200
YO-335-5O-335-5 6V4-178
O-335-5AO-335-5BYO-335-6O-335-6 6V4-200
O-335-6B6VS-O-335-
O-350 Franklin 4.6250 3.5000 352.80O-350-1 Lycoming c.1941 4.3750 3.8750 349.52IO-360-A Continental 4.4375 3.8750 359.58IO-360-C ContinentalIO-360-D Continental
O-360-A2A LycomingIO-360-BIG6 LycomingIO-360-M1A Lycoming 5.1250 4.3750 361.01
IMO-360-B1B LycomingHIO-360-A1A Lycoming 5.1250 4.3750 361.01HIO-360-B1A LycomingTIO-360-A3B6 Lycoming
TIO-360C LycomingVO-360-A1A Lycoming
XO-405-1 Franklin 6AC-403 4.6250 4.0000 403.20O-405-2
Page 16 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
XO-405-3 6ACSA-403XO-405-5O-405-5 6ACGSA-403
XO-405-7 6ACGSA-403XO-405-9 6ACV-403O-405-9 6ACV-403
XO-405-11 6ACV-403XO-425-1 Franklin 6ACV-245 4.7500 4.0000 425.29O-425-1O-425-2
XO-425-3 6AGS6-245XO-425-5O-425-5 6AG6-245O-425-7O-425-9
XO-425-11O-425-13 6V6-300-D16FTXO-435-1 Lycoming 4.8750 3.8750 433.97O-435-1
XO-435-2O-435-2
XO-435-3 GO-435XO-435-4O-435-4
XO-435-5O-435-5 O-435-BO-435-6 VO-435-A1B
O-435-6A VO-435-A1DXO-435-7 O-435-B1O-435-7
XO-435-9O-435-9
O-435-11O-435-12O-435-13O-435-15O-435-17O-435-19O-435-21 VO-435-A1AO-435-23 VO-435-A1C
O-435-23AO-435-23BO-435-23CO-435-25
O-435-25A TVO-435-B1AO-435-A2O-435-C
GO-435-B1A6GO-435-C2
GO-435-C2B1GO-435-C2B2-G
TVO-435-25
Page 17 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
TVO-435-D1BVO-435-
VO-435-21VO-435-23BVO-435-B1B
XO-470-1 Continental 5.0000 4.0000 471.24O-470-2
XO-470-3O-470-3O-470-4
XO-470-5O-470-7 E-185-3
O-470-7A E-185-3O-470-7B E-185-9XO-470-9O-470-11
O-470-11AO-470-11BO-470-13
O-470-13AO-470-13BO-470-15O-470-LO-470-M
FSO-470-AIO-470-DIO-470-LO-480-1 Lycoming GSO-480 5.1250 3.8750 479.62
O-480-1AO-480-1BO-480-3 IGSO-480
O-480-3AGO-480-B
GO-480-CSC6GO-480-F6
GO-480-G1D6GO-480-G2D6
IGSO-480-A1A6IO-520 Continental 5.2500 4.0000 519.54
IO-520-BIO-520-C
TSIO-520-CIO-520-DGIO-520
GTSIO-520GTSIO-520-M
O-525-1 Continental FSO-526-A 5.1250 4.2500 526.04XO-540-1 Franklin 8-ACG-538 4.6250 4.0000 537.61XO-540-3 8-ACGSA-538O-540-5 8-ACGSA-538
XO-540-7 13 8-ACSA-538O-540-9 Lycoming VO-540 5.1250 4.3750 541.51
Page 18 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
O-540-9A LycomingO-540-A1AO-540-A2B
O-540-A-3D5AEIO-540-D4A5IGSO-540-B1A
IO-540-GIO-540-K1B5
IO-540-W3A5DVO-540-A1BGIO-550-A Continental 5.2500 4.2500 552.01XO-580-1 Lycoming GSO-580 4.8750 3.8750 578.63O-580-3 VSO-580
SO-580-A1ASO-580-BSO-580-D
IO-720-A1B Lycoming 5.1250 4.3750 722.01XO-805-1 Franklin 12ACG-806 4.6250 4.0000 806.41XO-805-2XO-805-3 12ACGSA-806O-805-5 12ACGSA-806
O-1230-1 Lycoming 1935 5.2500 4.7500 1233.91O-1430-1 Continental 1932 5.5000 5.0000 1425.50
XO-1430-3
RadialXR-250-1 General Motors X-250-D 3.0625 4.2813 252.29R-250-3 X-250-D
YR-265-1 LeBlond c.1937 4.2500 3.7500 265.99R-265-1 Ken Royce c.1942 LeBlond 90-F5 4.2500 3.7500 265.99R-270-1 Lambert R-266 4.2500 3.7500 265.99
YR-370-1 Kinner K-5 4.2500 5.2500 372.39R-370-1 KinnerR-370-1 Ken Royce LeBlond 7-G 4.2500 3.7500 372.39R-420-1 Warner Scarab 165-DE 4.2500 4.2500 422.04R-440-1 Kinner B-5 4.6250 5.2500 441.00R-440-3 B-54R-500-1 Warner Super Scarab 165 4.6250 4.2500 499.80R-500-2R-500-3 165-GR-500-4R-500-5 165-ER-500-6R-500-7 165R-500-9 165-DER-540-1 Wright Whirlwind 5 (J-6) R-540-A 5.0000 5.5000 539.96R-540-3 Wright R-540-EYGR-540 WrightR-540-1 Kinner R-55 5.0000 5.5000 539.96R-540-3 Kinner
YR-545-1 Continental A-70 4.6300 4.6300 545.67R-545-1
Page 19 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
XR-550-1R-550-1 Warner Super Scarab 4.8750 4.2500 555.30R-550-3R-600-1 Curtiss Challenger 5.1250 4.8750 603.40R-600
YR-670R-670-1 Continental W-670 Series 6 5.1250 4.6250 667.86R-670-2R-670-3 W-670 Series 6AR-670-4 W-670 Series 6NR-670-5R-670-6
R-670-6AR-670-7R-670-8 W-670 Series 16R-670-9 W-670 Series 6N
R-670-11 W-670 Series 16R-670-11A W-670 Series 16R-670-14R-670-98Y1R-670AYR-680-1 Lycoming 4.6250 4.5000 680.41R-680-1 R-680R-680-2R-680-3 R-680-AR-680-4R-680-5R-680-6R-680-7R-680-8
R-680-9 R-680-E3XR-680-10R-680-11 R-680-E3LR-680-12R-680-13 R-680-E3R-680-14R-680-15R-680-16R-680-17R-680-B5R-680-B6R-680-D1R-680-D5R-680-E1YR-720 Kinner C-5 5.6250 5.7500 714.45
Y1R-720R-720-1
YR-755-1 Jacobs 5.2500 5.0000 757.66R-755-1 L4-MA
YR-755-3R-755-3 L4-MA7
Page 20 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
YR-755-5 L4-MTR-755-7 L4-PTR-755-9 L4-MR
R-755-11R-755-A2R-760-1 Wright 4 Whirlwind 7 (J-6) R-760-ET 5.0000 5.5000 755.95R-760-2 R-760-ETR-760-2 NAF 1935 155 R-760-ETR-760-4 80 R-760-ET
XR-760-6R-760-6 1 R-760-E2R-760-8 150 R-760-ETR-760-8 NAF 5/28/1940 975 R-760-ET
R-760-92R-760-94R-760-96 NAFR-760-E
R-760-E1R-760-E2R-790-1 Wright Whirlwind 9 (J-5) 4.5000 5.5000 787.26R-790-3 R-790-BR-790-5R-790-8R-790-AR-830-1 Jacobs L-5 5.5000 5.0000 831.54R-915-1 Jacobs L-6MBA 5.5000 5.5000 914.69R-915-3 L-6MBAR-915-5 L-6MBAR-915-7 L-6MB
XR-918-2 Guiberson 1934 2 A-918 4.7500 5.7500 917.04R-975-CR-975-E
R-975-E3R-975-1 Wright Whirlwind 9 (J-6) R-975-A 5.0000 5.5000 971.93R-975-3 R-975-E1R-975-5 SR-975-E3R-975-7 438 R-975-E2T
YR-975-9R-975-9 R-975-E2
R-975-11 3197 R-975-E3R-975-11 ContinentalR-975-11 NAF 37 R-975-E3R-975-13 Continental R-975-CA4
XR-975-15 ContinentalXR-975-17 ContinentalR-975-19 ContinentalR-975-20R-975-22R-975-24 1 R-975-E3R-975-26 1 R-975-E3R-975-28 217 R-975-E680R-975-28 NAF 26 R-975-E680
Page 21 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-975-30 NAF 371 R-975-E680R-975-32R-975-34R-975-36R-975-38R-975-40R-975-42R-975-44R-975-46
R-975-46A Continental R-9ADR-980 Packard 4 4.8125 6.0000 982.26R-985-AYR-985 P&W Wasp Junior 5.1875 5.1875 986.75
R-985-1 P&W Wasp Junior R-985-AR-985-2 c.1938R-985-3 SR-985-A (R-985-S2A?)R-985-4R-985-5 R-985-B (R-985-T2A?)R-985-7 0 G1R-985-B (R-985-AG?)
YR-985-9R-985-9 R-985-TB
R-985-11 R-985-T2B (R-985-TB?)R-985-11A R-985-TBYR-985-13R-985-13 R-985-SB
XR-985-15 0 R-985-C (R-985-CG?)R-985-17 R-985-SBR-985-19 R-985-S2BR-985-21 R-985-TBR-985-23 R-985-SBR-985-25 R-985-T1B2R-985-27 R-985-T3BR-985-29R-985-31 R-985-SBR-985-33 R-985-SBR-985-34R-985-35 R-985-SB2R-985-36R-985-37R-985-38 R-985-T3AR-985-39 R-985-T1B3
R-985-39A R-985-T1B3R-985-40 R-985-AGR-985-45R-985-46 R-985-TBR-985-48 R-985-SBR-985-50 R-985-SB2
R-985-AN-1 R-985-TB3 (R-985-T1B3?)R-985-AN-1 Jacobs R-985-TB3 (R-985-T1B3?)
Page 22 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-985-AN-1A R-985-T1B3R-985-AN-2 R-985-SB3
R-985-AN-3 R-985-TB3 (R-985-T1B3?)R-985-AN-3 Jacobs R-985-TB3 (R-985-T1B3?)
R-985-AN-3A R-985-T1B3R-985-AN-4 R-985-SB3R-985-AN-5 R-985-TB4 (R-985-T1B4?)R-985-AN-6 R-985-SB3R-985-AN-6 Jacobs R-985-SB3
R-985-AN-6B R-985-SB3R-985-AN-6B Jacobs R-985-SB3R-985-AN-7 0 R-985-TB4 (R-985-T1B4?)R-985-AN-8 R-985-SB3R-985-AN-9
R-985-AN-10 R-985-SB3R-985-AN-11R-985-AN-12 R-985-SB3
R-985-AN-12B R-985-SB3R-985-AN-13R-985-AN-14
R-985-AN-14B R-985-SB3R-985-AN-14B Jacobs R-985-SB3
R-985-B5R-985-SBR-1044-2 Kinner C-7 series 5.6250 6.0000 1043.72R-1300-1 Wright 605 Cyclone 7 853C7BA1 6.1250 6.3125 1301.97
R-1300-1A Wright 144 865C7BA1R-1300-1A Kaiser 277R-1300-1A Willys 927R-1300-1BXR-1300-2 Wright 4R-1300-2 Wright 3 865C7BA1R-1300-2 Lycoming 5R-1300-2 Willys 20
R-1300-2A Wright 13R-1300-2BR-1300-3 Wright 5 871C7BA1R-1300-3 Lycoming 375R-1300-3 Willys 943
R-1300-3AR-1300-3BR-1300-3CR-1300-3DR-1300-4 Lycoming 1950 27 899C7BA1R-1300-4 Willys 23
R-1300-4AR-1300 Kaiser-Frazer c.1953
R-1340-A P&W Wasp 5.7500 5.7500 1343.80
R-1340-B
Page 23 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1340-CR-1340-C1R-1340-D
R-1340-D1XGRS-1340EY1SR-1340GY1SR-1340H
R-1340-1 P&W Wasp R-1340-AR-1340-2 R-1340-TDGR-1340-3 R-1340-BR-1340-4 R-1340-DR-1340-5 SR-1340-BR-1340-6 R-1340-D
R-1340-7 SR-1340-CR-1340-8 R-1340-SD
R-1340-9 R-1340-C (R-1340-SC?)R-1340-10 R-1340-SDR-1340-11 SR-1340-DR-1340-12 R-1340-D1R-1340-13 G1R-1340-D (R-1340-TDG?)R-1340-14 R-1340-D1R-1340-15 R-1340-D (R-1340-SC?)R-1340-16 SR-1340-SD1
R-1340-16M SR-1340-S1D1R-1340-17 SR-1340-SDR-1340-18 R-1340-D1R-1340-19 SR-1340-SER-1340-20R-1340-21 R-1340-S2ER-1340-22 R-1340-D3R-1340-23 R-1340-SDR-1340-24 0 R-1340-SER-1340-25 R-1340-C2R-1340-26 0 R-1340-S2H1-GR-1340-27 R-1340-S2E (R-1340-SE?)R-1340-28R-1340-29 R-1340-D1
XR-1340-30 0 R-1340-SFYR-1340-31R-1340-31 R-1340-SFR-1340-32 R-1340-H3R-1340-33 35? R-1340-D2R-1340-34R-1340-35 R-1340-H3R-1340-36 R-1340-S3H1R-1340-37 R-1340-S1H3GR-1340-38 R-1340-S2ER-1340-39 R-1340-S5H1
Page 24 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1340-40 0 R-1340-S3H2R-1340-41 R-1340-S3H1R-1340-42 R-1340-S3H1
XR-1340-43 R-1340-T5H1R-1340-43R-1340-44R-1340-45 R-1340-S3H1GR-1340-46R-1340-46 R-1340-T6H1GR-1340-47 R-1340-S3H1R-1340-48R-1340-48 R-1340-S1H2
R-1340-48A R-1340-S1H2R-1340-49 R-1340-S3H1R-1340-50R-1340-51 R-1340-H1 (R-1340-S3H1?)R-1340-52R-1340-53 R-1340-S1H1G
XR-1340-55R-1340-55 R-1340-S3H2R-1340-57 R-1340-S1H2R-1340-59 R-1340-S3H1GR-1340-59R-1340-61R-1340-80R-1340-88 R-1340-CR-1340-96 R-1340-D
R-1340-AN-1 P&W R-1340-S3H1R-1340-AN-1 ContinentalR-1340-AN-1 JacobsR-1340-AN-2 R-1340-T6H1GR-1340-AN-3 R-1340-H1 (S3H1G?)R-1340-AN-5 R-1340-H1 (S3H1G?)R-1340-AN-7 R-1340-H (S3H1G?)R-1340-S3H1
R-1340-S3H1-GR-1454 Curtiss 1/16/1924 c.9/1924 1 3 Wright R-2 5.6250 6.5000 1453.75R-1454 Curtiss 2/19/1925 1R-1454 Curtiss 2/9/1926 6/1926 2
XR-1510-1 Wright Whirlwind 14 GR-1510-B2 5.0000 5.5000 1511.89YR-1510-1XR-1510-8
XR-1510-12R-1510-26R-1510-28R-1510-92
XR-1510-94R-1510-98XR-1530C Jacobs 1943 5.2500 5.0630 1534.42XR-1530D Jacobs 1943 5.2500 5.0630 1534.42R-1535-1 P&W 0 Twin Wasp Junior GR-1535-SAG 5.1875 5.1875 1534.94
Page 25 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1535-2 R-1535-SB4GR-1535-02YR-1535-3R-1535-3 0 R-1535-AG
YR-1535-5R-1535-5 0 R-1535-S5AG
YR-1535-7R-1535-7 R-1535-S3A4GR-1535-9 0 R-1535-A2G
R-1535-11 R-1535-S1A5GR-1535-13 R-1535-S2A5G
XR-1535-15 0 R-1535-B3GXR-1535-44R-1535-62 R-1535-TAG
XR-1535-64 R-1535-AGR-1535-66 R-1535-S1AG
XR-1535-70R-1535-72 R-1535-S1A2R-1535-78 R-1535-A2GR-1535-80R-1535-82 R-1535-S2A4GR-1535-84 R-1535-SAGR-1535-86 R-1535-B1GR-1535-88 R-1535-SBGR-1535-90
XR-1535-92 R-1535-SCGR-1535-94 R-1535-SB4GR-1535-96 R-1535-SB4GR-1535-98 R-1535-SA8G
R-1535-102XH-1640-1 Curtiss 8 Chieftan 5.6250 5.5000 1640.13R-1640-1 Curtiss Chieftan 5.6250 5.5000 1640.13
YR-1670-1R-1670-1 Wright Whirlwind GR-1670-A1 5.2500 5.5000 1666.86
XR-1670-2R-1670-3 GR-1670-A2
XR-1670-5 SCR-1670-G5YR-1670-5R-1670-5 SGR-1670-A5
XR-1670-7R-1670-7 SGR-1670-B5R-1690-1 P&W Hornet A 6.1250 6.3750 1690.54R-1690-3 R-1690-A1R-1690-5 R-1690-B (R-1690-A2?)R-1690-7 R-1690-C (R-1690-TC?)R-1690-9 R-1690-D (R-1690-C?)
YR-1690-11R-1690-11 R-1690-SDGR-1690-13 R-1690-CR-1690-15 R-1690-SDGR-1690-17 R-1690-S1EGR-1690-19 R-1690-E1G
Page 26 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1690-21 R-1690-SDGR-1690-22R-1690-23 R-1690-S1EGR-1690-24R-1690-25 R-1690-S1E3GR-1690-28 R-1690-A1R-1690-32 R-1690-A2R-1690-38 R-1690-CR-1690-40 R-1690-CR-1690-42 R-1690-TC1R-1690-44 R-1690-S2CR-1690-52 R-1690-S1E-GR-1690-54 R-1690-S1E3-GR-1690-AR-1690-CR-1690-E
R-1690-S2CGR-1690
XR-1740-2 Continental 1941 5.6250 5.0000 1739.53R-1750-1 Wright Cyclone 9 R-1750-B 6.0000 6.8750 1749.47R-1750-3 R-1750-ER-1750-AR-1750-D
GR-1750-DGR-1750
G1R-1750XR-1800 Wright Tornado T-35 4.2500 3.6250 1799.88
YR-1820-1R-1820-1 Wright Cyclone 9 R-1820-E 6.1250 6.8750 1823.13R-1820-2
YR-1820-3R-1820-3 GIR-1820-E
XR-1820-4R-1820-04 37 SR-1820-F3R-1820-5 R-1820-EMR-1820-6R-1820-7 GIR-1820-EM
R-1820-08 10 SR-1820-F2R-1820-9 SR-1820-E
R-1820-10 1 R-1820-F5R-1820-11 GISR-1820-EMR-1820-12 14 GR-1820-F3R-1820-13 R-1820-F1
XR-1820-14 GR-1820-G5R-1820-15 R-1820-F3R-1820-16R-1820-17 62 SGR-1820-F2R-1820-18R-1820-19 SGR-1820-F2R-1820-20 39 R-1820-F2
YR-1820-21R-1820-21 70 R-1820-F1
Page 27 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
XR-1820-22R-1820-22 147R-1820-23 8 GR-1820-F1R-1820-24
YR-1820-25
R-1820-25 105 SGR-1820-F2R-1820-26
XR-1820-27R-1820-27 2 SGR-1820-F2R-1820-28 2
XR-1820-29R-1820-29 SGR-1820-F2R-1820-30 112 R-1820-F2AR-1820-31 1 SGR-1820-F2
XR-1820-32R-1820-32 196 R-1820-G133
YR-1820-33R-1820-33 396R-1820-33 SGR-1820-F3AR-1820-34 250R-1820-35 SR-1820-F1R-1820-36 1 SGR-1820-F3A
YR-1820-37R-1820-37 19 SR-1820-F2R-1820-38 24
XR-1820-39R-1820-39 94 R-1820-G5
XR-1820-40R-1820-40 374 G251
R-1820-40B 105 G251AR-1820-40CXR-1820-41YR-1820-41R-1820-41 SGR-1820-G11
XR-1820-42 2 G253R-1820-43 1 GR-1820-G2SR-1820-44 21
YR-1820-45R-1820-45 480 SGR-1820-G12R-1820-46 1R-1820-47 40 R-1820-G39
XR-1820-48R-1820-48 1 C9GC1R-1820-49 244 R-1820-G37R-1820-50 216R-1820-51 259 GR-1820-G59R-1820-52 2640R-1820-53 658 GR-1820-G71R-1820-54 462 C9GC1R-1820-55 108 GR-1820-G61
XR-1820-56
Page 28 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1820-56 2186 806C9HC1R-1820-56AR-1820-56SR-1820-56W 3621 806C9HC1
R-1820-56WA 1162 806C9HC1R-1820-57 117 GR-1820-G131R-1820-58R-1820-59 GR-1820-G255R-1820-60 5399 GR-1820-G251R-1820-61 0 GR-1820-F51R-1820-62 550 805C9HC1
R-1820-62A 428 805C9HC1R-1820-63R-1820-64R-1820-65 4938 GR-1820-G666R-1820-65 Studebaker 6/1941 3504R-1820-66 760 806C9HC3R-1820-67 1 GR-1820-G687R-1820-68R-1820-69 2 GR-1820-G688
R-1820-70W 6 806C9HC2R-1820-71 268 R-1820-G202A
R-1820-72A 40 806C9HC7R-1820-72W
R-1820-72WA 270 806C9HC7R-1820-73 118 722-C9GC1
R-1820-74W 12 826C9HD1R-1820-75 5 R-1820-F53R-1820-76 27 826C9HD2
R-1820-76A 826C9HD3R-1820-76A Lycoming 295R-1820-76B 826C9HD5R-1820-76B Lycoming 693R-1820-76CR-1820-76DR-1820-77 3 GR-1820-G3R-1820-78R-1820-78 4 834C9HD1R-1820-79 13 GR-1820-G102AR-1820-80 SR-1820-F3R-1820-80 2R-1820-80 266 866C9HE1R-1820-80 Lycoming 23
R-1820-80AR-1820-80BR-1820-80CR-1820-81 6 GR-1820-G102AR-1820-82 2242R-1820-82 Lycoming 14
R-1820-82AR-1820-82BR-1820-82C
Page 29 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1820-82DR-1820-82WA 266
R-1820-83 1 GR-1820-G102AR-1820-84 56R-1820-84 1494
R-1820-84A Lycoming 175R-1820-84B 73R-1820-84B Lycoming 142R-1820-84C 108R-1820-84D 8R-1820-85 60 GR-1820-G102AR-1820-86R-1820-86 Lycoming 1035 896C9HD1
R-1820-86AR-1820-86BR-1820-87 2422 GR-1820-G205A
R-1820-87CR-1820-88 3 GR-1820-F1R-1820-88R-1820-89 26 GR-1820-G102AR-1820-90 131 GR-1820-F2R-1820-91 10 R-1820-G200R-1820-92R-1820-93 40 794C9HC1R-1820-94R-1820-95 4 R-1820-G205AR-1820-96
R-1820-97 3808 R-1820-G666A
R-1820-97 Studebaker 60285R-1820-98R-1820-99
R-1820-100R-1820-101 40 826C9HD4R-1820-102 10 R-1820-F2R-1820-103 57 863C9HD1R-1820-103 Lycoming 914
R-1820-103AR-1820 Lycoming
R-1820-AR-1820-ER-1820-F
Y1R-1820-FSR-1820-F2R-1820-F51
SR-1820-F52R-1820-F62
R-1820-G102GR-1820-G105A
R-1820-G133R-1820-G202A
Page 30 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
GR-1820-G205AR-1820-HDXR-1828-2 Kinner GC-14 5.5000 5.5000 1829.39XR-1830-1 P&WYR-1830-1R-1830-1 P&W Twin Wasp R-1830-T1A1G (T1AG?) 5.5000 5.5000 1829.39R-1830-2R-1830-3 R-1830-T1A1GR-1830-4R-1830-5 R-1830-B1GR-1830-6R-1830-7 R-1830-BGR-1830-8
XR-1830-9R-1830-9 R-1830-SBG
R-1830-10XR-1830-11R-1830-11 R-1830-S1B3GR-1830-12
XR-1830-13YR-1830-13R-1830-13 R-1830-SCGR-1830-14
XR-1830-15R-1830-15 R-1830-S2B3GR-1830-16R-1830-17 R-1830-S1C1GR-1830-18R-1830-19 R-1830-SC2GR-1830-20R-1830-21 R-1830-S1C1GR-1830-22R-1830-23 R-1830-S1C1GR-1830-24R-1830-25 R-1830-S1C1GR-1830-26R-1830-27 R-1830-S6C3G (R-1830-SC3G?)R-1830-28R-1830-29 R-1830-C3G (R-1830-SC3G?)R-1830-30R-1830-31 R-1830-C6G (R-1830-SC6G?)R-1830-32R-1830-33 R-1830-S3C4G
R-1830-34AR-1830-35 R-1830-S5C3GR-1830-36R-1830-37 R-1830-S1CGR-1830-38
XR-1830-39 R-1830-S3C4GR-1830-39 R-1830-S3C4GR-1830-40R-1830-41 R-1830-R8CAG (R-1830-TSC4G?)
Page 31 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1830-42
R-1830-43 R-1830-TSC4GR-1830-43 Buick 10/1940 R-1830-TSC4GR-1830-43 Chevrolet R-1830-TSC4G
R-1830-43A R-1830-TSC4GR-1830-43A BuickR-1830-43A ChevroletR-1830-44R-1830-45 R-1830-SC3GR-1830-45 BuickR-1830-45 ChevroletR-1830-46R-1830-47 R-1830-SC3GR-1830-48R-1830-49 R-1830-S1C3GR-1830-50R-1830-51 R-1830-S1C3GR-1830-52R-1830-53 R-1830-S1C3G
XR-1830-54R-1830-55 4 R-1830-C8G (R-1830-TSC8G?)R-1830-56R-1830-57 R-1830-S1C3GR-1830-57 ChevroletR-1830-58 R-1830-T1A1R-1830-59 4 R-1830-TSC9G
XR-1830-60 R-1830-S1A2GR-1830-61 45 R-1830-S3C4GR-1830-62 R-1830-A1R-1830-63 R-1830-S3C4GR-1830-64 R-1830-SBG
R-1830-65 Buick R-1830-TSC4GR-1830-65A Buick R-1830-C4G (R-1830-TSC4G?)R-1830-65A Chevrolet R-1830-C4G (R-1830-TSC4G?)XR-1830-66R-1830-66 R-1830-SCGR-1830-67 Chevrolet R-1830-TSC4G
XR-1830-68 R-1830-SCGR-1830-69 0 R-1830-TSC9G
XR-1830-70R-1830-70 R-1830-SB2GR-1830-71 R-1830-TSC4G
XR-1830-72 R-1830-SCGR-1830-72 R-1830-SCGR-1830-73 R-1830-TSC9G
XR-1830-74 R-1830-CGR-1830-75 Buick R-1830-TSC9G (R-1830-TSC10G)
XR-1830-76 R-1830-SC2GR-1830-76 R-1830-SSC5GR-1830-78 R-1830-SSC5G
Page 32 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-1830-80 R-1830-SC3GR-1830-82 R-1830-S1C3G
R-1830-82A R-1830-S1C3GR-1830-84 17 R-1830-S1C3G
R-1830-84A 6 R-1830-S1C3GR-1830-86 R-1830-SSC7GR-1830-88 R-1830-SSC7G
R-1830-88A R-1830-SSC7GR-1830-90 R-1830-S3C4G
R-1830-90B R-1830-S3C4GR-1830-90C R-1830-S3C4GR-1830-90C Buick R-1830-S3C4GR-1830-90D R-1830-S3C4G
R-1830-92 R-1830-S1C3GR-1830-92A R-1830-S1C3GR-1830-94 R-1830-2SC9GR-1830-96 R-1830-S1C3GR-1830-98 R-1830-2SC10GR-1860-1 P&W Hornet R-1860-B 6.2500 6.7500 1863.79R-1860-3 GR-1860-BR-1860-5 G1R-1860-BGR-1860-7 R-1860-BR-1860-9 0 R-1860-B1
R-1860-11 G1SR-1860-S2B1GR-1860-13 G1R-1860-B1G
YR-1860-15R-1860-15 0 G1R-1860-S3B1AR-1860-17 G1R-1860-S1B1AR-1860-18 G1R-1860-S1B1GR-1860-19 R-1860-S3B1GR-1860-42 0 R-1860-S2B1GR-1860-48 0 R-1860-BR-1860-52 0 R-1860-B1R-1860-56 0 R-1860-B1R-1860-BGR-1860
XR-2000-1 P&W Twin Wasp R-2000-2SDG 5.7500 5.5000 1999.48XR-2000-2 R-2000-TSDGR-2000-3 R-2000-2SDGR-2000-4 69 R-2000-2SD13G
R-2000-4AR-2000-5 0 R-2000-2SDGR-2000-6
R-2000-6AR-2000-7 R-2000-2SDG
R-2000-7M2R-2000-9 R-2000-2S1DG (2SD1G?)R-2000-9 Buick R-2000-2S1DG (2SD1G?)
R-2000-9A 376 R-2000-2S1DG (2SD1G?)
Page 33 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-2000-9BR-2000-11 R-2000-2S11DG (2SD11G?)R-2000-13 R-2000-2SD13G
R-2060 P&W 1931 1 5.2500 4.7500 2056.52H-2120 Wright 1933 6.1250 6.0000 2121.46
XR-2120 Wright 6.1250 6.0000 2121.46R-2160-1 Wright 1/23/1940 1 Tornado 617 (T-42) 4.2500 3.6250 2159.86R-2160-3 Tornado 689R-2160-5 788-T42-AAIR-2170 Wright 0 Cyclone 14 6.1250 5.2500 2165.66
R-2180-1 P&W Twin Hornet R-2180-SAG 5.7500 6.0000 2181.25XR-2180-2 R-2180-SAGR-2180-3 R-2180-S1A1GR-2180-4R-2180-5 R-2180-S1A1GR-2180-6 R-2180-S1A1GR-2180-7 R-2180-S1A1GR-2180-9 R-2180-S1A1G
XR-2180-11 Twin Wasp R-2180E-2XR-2270-1 P&W 1930 5.7500 6.2400 2268.50R-2600-1 Wright 1 Cyclone 14 GR-2600-A31 6.1250 6.3125 2603.94
XR-2600-2 Wright 1XR-2600-3 Wright GR-2600-A71R-2600-3 Wright 164 GR-2600-A71R-2600-4 Wright 3 GR-2600-A39R-2600-5 Wright 3 GR-2600-A79R-2600-6 Wright 55 GR-2600-A71
R-2600-6A Wright 24 GR-2600-A678R-2600-7 Wright 217 GR-2600-B657-3
XR-2600-8 Wright
R-2600-8 Wright 11410 GR-2600-B698R-2600-8A Wright 233 GR-2600-B698R-2600-9 Wright 1941 522 GR-2600-B655
XR-2600-10 WrightR-2600-10 Wright 9 GR-2600-B676R-2600-11 Wright 3258 GR-2600-A71
XR-2600-12 WrightR-2600-12 Wright 1461 GR-2600-B766
R-2600-13 Wright 1941 13494 GR-2600-B655R-2600-14 Wright 1 813C14BB1R-2600-15 Wright 1 789C14BB3R-2600-16 Wright 2 GR-2600-B676R-2600-17 Wright 586C14B5
R-2600-17A Wright 4 GR-2600-A5B-5R-2600-18 WrightR-2600-19 Wright 639 GR-2600-A5B
XR-2600-20 WrightR-2600-20 Wright 1943 14620 776C14BB1R-2600-21 Wright GR-2600-A5BR-2600-22 Wright 880 776C14BB4
Page 34 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-2600-23 Wright 10342 GR-2600-A5B-0R-2600-25 WrightR-2600-27 Wright 0 GR-2600-A5B-1R-2600-29 Wright 1943 18784 GR-2600-B655
R-2600-29A WrightR-2600-31 Wright 360 GR-2600-B655R-2600-33 WrightR-2600-35 Wright
R-2600-A71-3 WrightR-2600-A2A Wright
R-2600 Studebaker 11/1940R-2600 P&W 0.00
R-2800-1 P&W 2 Double Wasp R-2800-SA-G 5.7500 6.0000 2804.46XR-2800-2 P&W 1 R-2800-A2-GR-2800-3 P&W R-2800-SA3-G
XR-2800-4 P&W 2 R-2800-SSA5GR-2800-5 P&W 475 R-2800-S1A4-GR-2800-5 Ford 8/1940 954 R-2800-S1A4-G
XR-2800-6 P&W 2 R-2800-S1A4-GR-2800-7 P&W 1 R-2800-A6-GR-2800-8 P&W 2194 R-2800-SSB2-GR-2800-8 Nash 1709 R-2800-SSB2-G
R-2800-8W P&W 5574 R-2800-SSB2-GR-2800-8W Nash 3094 R-2800-SSB2-GR-2800-9 P&W 0
R-2800-10 P&W 2931 R-2800-SSB2-GR-2800-10 Nash 1690 R-2800-SSB2-G
R-2800-10W P&W 3040 R-2800-SSB2-GR-2800-10W Nash 9900 R-2800-SSB2-GR-2800-11 P&W 4 R-2800-A-GR-2800-12 P&W 1 R-2800-B-GR-2800-13 P&W 1 R-2800-A-G
R-2800-14W P&W KC 77 R-2800-TSC2-GR-2800-15 P&W 3 R-2800-A-G
XR-2800-16 P&W R-2800-TSB1-GR-2800-16 P&W 4 R-2800-TSB1-G
XR-2800-17 P&W 1 R-2800-A-GR-2800-18 P&W 0 R-2800-SSC22-G
R-2800-18W P&W 3257 R-2800-SSC22-GR-2800-18WA P&W 32 R-2800-SSC22-G
R-2800-19 P&W 0 R-2800-A-GR-2800-20 P&W 1 R-2800-2SB-GR-2800-21 P&W 1049 R-2800-TSB1-GR-2800-21 Ford 4671 R-2800-TSB1-GR-2800-22 P&W 2 R-2800-2SC13-GR-2800-22 P&W KC 1104 R-2800-2SC13-G
R-2800-22W P&W KC 387 R-2800-2SC13-GXR-2800-23 P&W 0 R-2800-D2GR-2800-23 P&W R-2800-SSD21-G
XR-2800-24 P&W 0 R-2800-SSC22-GDR-2800-24 P&W 0 R-2800-SSC22-GD
Page 35 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
XR-2800-25 P&W 5 R-2800-SSB2-GR-2800-26 P&W 0 R-2800-2SB-G
XR-2800-27 P&W R-2800-B2-GR-2800-27 P&W 616 R-2800-2SB-GR-2800-27 Ford 282 R-2800-2SB-GR-2800-28 P&W 8 R-2800-2SC13-G
XR-2800-29 P&W 4 R-2800-SSD21-GYR-2800-30W P&W 12 R-2800-VSE11-GR-2800-30W P&W 592 R-2800-E12R-2800-31 P&W 2500 R-2800-2SB-GR-2800-31 Ford 6088 R-2800-2SB-G
R-2800-32W P&W 6 R-2800-VSSE21-GR-2800-32W P&W 818 R-2800-E12R-2800-33 P&W 0 R-2800-TSB1-GR-2800-34 P&W KC 2082 R-2800-2SC14-G
R-2800-34A P&W KC 0 R-2800-2SC14-G
R-2800-34W P&W KC 3104 R-2800-2SC14-GR-2800-34W4 P&W KC 4 R-2800-2SC14-GR-2800-34WA P&W KC 0 R-2800-2SC14-G
R-2800-35 P&W 11 R-2800-TSB1-GR-2800-36 P&W 0 R-2800-2SC14-G
R-2800-36W P&W R-2800-2SC14-GR-2800-37 P&W 4 R-2800-2SC12-G
R-2800-38W P&W 0 R-2800-SSC23-GR-2800-39 P&W 269 R-2800-S1A4-GR-2800-40 P&W 0 R-2800-2SC14-G
R-2800-40W P&W 0 R-2800-2SC14-GR-2800-41 P&W 296 R-2800-2SB-G
R-2800-42W P&W 400 R-2800-CE21R-2800-43 Ford 12559 R-2800-2SB-GR-2800-44 P&W 98 R-2800-CE4
R-2800-44W P&W 319 R-2800-CE4R-2800-45 P&W 2 R-2800-2SB-GR-2800-46 P&W 0 R-2800-CA5
R-2800-46W P&W 3 R-2800-CA5R-2800-47 P&W 538 R-2800-2SB-GR-2800-48 P&W 573 R-2800-CB2R-2800-49 P&W 3 R-2800-TSB-GR-2800-50 P&W 154 R-2800-CB5
R-2800-50A P&W 154 R-2800-CB5R-2800-51 Ford 5152 R-2800-2SB-G
R-2800-51M1 FordR-2800-52W P&W 926 R-2800-CB17R-2800-52W Nash 334 R-2800-CB17
R-2800-52WA P&W R-2800-CB17R-2800-53 P&W R-2800-SSB2-GDR-2800-54 P&W 181 R-2800-CB5R-2800-55 P&W 2 R-2800-SSC22-GDR-2800-57 P&W 2 R-2800-TSC2-GR-2800-57 P&W KC 895 R-2800-TSC2-GR-2800-57 Chevrolet 200 R-2800-TSC2-G
Page 36 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-2800-59 P&W 592 R-2800-TSB1-GR-2800-59 Ford 10799 R-2800-TSB1-GR-2800-61 P&W 1 R-2800-TSC2-GDR-2800-63 P&W 1262 R-2800-TSB1-GR-2800-63 Ford 767 R-2800-TSB1-GR-2800-65 P&W 1292 R-2800-SSB2-GR-2800-65 Nash 517 R-2800-SSB2-GR-2800-67 P&W 0 R-2800-2SB-GR-2800-69 P&W 0 R-2800-2SB-GR-2800-71 Ford 1726 R-2800-2SB-GR-2800-73 Chevrolet 2665 R-2800-TSC2-GR-2800-75 Ford 8042 R-2800-2SB-GR-2800-77 Chevrolet 500 R-2800-TSC2-GR-2800-79 Ford 6617 R-2800-2SB-GR-2800-81 P&W KC 362 R-2800-TSC2-GR-2800-83 Chevrolet 665 R-2800-2SC14-G
R-2800-83A Chevrolet R-2800-2SC14-GR-2800-83W Chevrolet R-2800-2SC14-G
R-2800-83WA Chevrolet R-2800-2SC14-GXR-2800-85 Chevrolet R-2800-2SC14-GR-2800-85 Chevrolet 62 R-2800-2SC14-G
R-2800-85A Chevrolet R-2800-2SC14-GR-2800-87 P&W 0 R-2800-TSC3-GR-2800-89 P&W 0 R-2800-2SC1-GR-2800-91 P&W 0 R-2800-2SC14-GR-2800-93 P&W 0 R-2800-2SC14-G
XR-2800-95 P&W 9 R-2800-CA-15R-2800-97 P&W 408 R-2800-CA-18
R-2800-99W P&W 609 R-2800-CB17R-2800-99W Nash 842 R-2800-CB17R-2800-101 P&W R-2800-TSC2-G
R-2800-103W P&W 80 108 R-2800-CB17R-3350-1 Wright 2 Cyclone 18 GR-3350-A33 6.1250 6.3125 3347.93R-3350-2 1R-3350-3 GR-3350-A35R-3350-4 7R-3350-5 1936 7 GR-3350-A77R-3350-6R-3350-7 GR-3350-C768R-3350-8 4 779C18BB1R-3350-9 GR-3350-C769
R-3350-10 2 812C18BB1R-3350-11 GR-3350-B665R-3350-12
XR-3350-13 50 670-C18-BA1R-3350-14 2 779C18BB2
XR-3350-15 GR-3350-B670XR-3350-16 1 798C18BB1XR-3350-17 1 784C18BB1R-3350-18 12 711C18BA3
XR-3350-19 31 787C18BA1
Page 37 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-3350-20R-3350-21 147 670C18BA2
R-3350-21A 670C18BA2R-3350-22R-3350-23 1265 670C18BA3R-3350-23 Dodge
R-3350-23A 6059 670C18BA4R-3350-23A Dodge 16427R-3350-23B 670C18BA4R-3350-24
R-3350-24W 694 825C18BD1R-3350-24WA
R-3350-25 0 711C18BA1R-3350-26
R-3350-26W 304 836C18CA1R-3350-26WA 1658 836C18CA1R-3350-26WA ChevroletR-3350-26WB 92 836C18CA2R-3350-26WB ChevroletR-3350-26WCR-3350-26WD
R-3350-27 0 796C18BB1R-3350-28R-3350-29 0 801C18BA1
YR-3350-30W 7R-3350-30W 552 856C18DA1
R-3350-30WA 1348 856TC18DB1R-3350-30WB 61
R-3350-31 786-C18-BB1R-3350-32
R-3350-32W 1288 878TC18EA1R-3350-32WA 28
R-3350-33 711C18BA2R-3350-34 1640 872TC18DA1R-3350-35 58 711C18BA2
R-3350-35A 181 711C18BA4R-3350-36
R-3350-36W 856TC18DB2R-3350-36WA
R-3350-37 6 670C18BA2R-3350-37A 787C18BAR-3350-38 932TC18EA2R-3350-39 1 787C18BAR-3350-40R-3350-41 26 787C18BA3R-3350-42
XR-3350-43 8 802C18BB1R-3350-44 861C8CA2R-3350-45 0 C18BCR-3350-47 0 820C18CAR-3350-49 0 C820C18CAR-3350-51 0 787C18BA
Page 38 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-3350-53 0 787C18BAR-3350-55 0 787C18BAR-3350-57 5379 787C18BA6R-3350-57 Dodge 1579
R-3350-57MR-3350-57A 787C18BA6R-3350-57A Dodge 407
R-3350-57AMR-3350-59 375 787C18BA7
R-3350-59A 787C18BA7R-3350-61 C18BAR-3350-63 C18BAR-3350-65 8 787C18BC5
XR-3350-65A 824C18BCR-3350-67 828C18BC1R-3350-69 828C18BC1R-3350-71 832C18CA1R-3350-73 829C18BD1
YR-3350-75 15 744C18DD1R-3350-75 9 744C18DD1R-3350-77 1 858C18DA1R-3350-79R-3350-81R-3350-83R-3350-85 1500 868TC18DB1R-3350-85 Chevrolet 1953 895R-3350-87R-3350-89 24 868TC18DB2
R-3350-89AR-3350-89BR-3350-91 463 923TC18DA2
R-3350-91AR-3350-93
R-3350-93AR-3350-93BR-3350-95W c.1965
R-3350-999TC18-EA2R-3350-749C18-BD1 c.1949
R-3350-BDXR-3640-1 Wright 6.1250 6.8750 3646.26XR-4090-1 Wright 1941 2? 790C22AA1 6.1250 6.3125 4091.91R-4090-3 Wright 1? 792C22AAH-4240 Wright c.1930 6.1250 6.0000 4242.92
XR-4360-1 P&WXR-4360-2 P&W Wasp Major R-4360-TSB1-G 5.7500 6.0000 4362.49R-4360-2 R-4360-TSB1-G
R-4360-2A R-4360-TSB1-GR-4360-3 R-4360-TSB1P-G
XR-4360-4 R-4360-VSB11-GYR-4360-4 R-4360-VSB11-G
R-4360-4 198 R-4360-VSB11-G
Page 39 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
R-4360-4A 16 R-4360-VSB11-GR-4360-4T R-4360-VSB11-GR-4360-4W 130 R-4360-VSB11-G
R-4360-4WTR-4360-5 8 R-4360-TSB1P-GR-4360-6 0 R-4360-VSSB21-G
XR-4360-7 2 R-4360-TSB1P-RDGXR-4360-8 5 R-4360-VSB11-GDR-4360-8A 2 R-4360-VSB11-GDXR-4360-9 2 R-4360-VSB11-G2R-4360-9T 1 R-4360-VSB11-GD
XR-4360-10 2 R-4360-VSSB21-GDXR-4360-11 1 R-4360-TSB1P-RDGR-4360-12 0 R-4360-VSSB11-G2D
R-4360-12A 0 R-4360-VSSB11-G2DXR-4360-13 3 R-4360-VSSB21-GR-4360-14 2 R-4360-VSSB11-GD
XR-4360-15 1 R-4360-VSB11-GR-4360-16R-4360-17 28 R-4360-TSB1P-RDGR-4360-18 13 R-4360-TSB1-GR-4360-19 0 R-4360-VSSB21-GDR-4360-20 275 R-4360-B12
R-4360-20W 583 R-4360-B12R-4360-20A R-4360-B12
R-4360-20ATR-4360-20WA 2053 R-4360-B12R-4360-20B R-4360-B12
R-4360-20WB R-4360-B12R-4360-20C R-4360-B12
R-4360-20WC R-4360-B12R-4360-20WDR-4360-20TR-4360-21 28 R-4360-TSB1P-RDG
R-4360-22W 24 R-4360-TSB3-GR-4360-23 R-4360-TSB1P-RDGR-4360-24 R-4360-VSB11-GR-4360-25 221 R-4360-TSB1P-G
XR-4360-27R-4360-27 84 R-4360-VSB11-G
XR-4360-29 0 R-4360-VSSB21-GR-4360-31 29 R-4360-TSB1-GD
XR-4360-33 6 R-4360-VSSB21-GR-4360-35 1929 R-4360-TSB3-G
R-4360-35A 382 R-4360-TSB3-GR-4360-35B 661 R-4360-TSB3-GR-4360-35C 598 R-4360-TSB3-GXR-4360-37 0 R-4360-TSB1-GXR-4360-39 3 R-4360-C2XR-4360-41 1 R-4360-B4R-4360-41 947 R-4360-TSB-3G (R-4360-B4?)
R-4360-41A 269 R-4360-B4
Page 40 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
XR-4360-43 8 3 R-4360-C3R-4360-43 200 R-4360-C3R-4360-45 13 R-4360-TSB1P-RGR-4360-47 13 R-4360-TSB1P-RGR-4360-49 R-4360-TSB3-G
R-4360-49A R-4360-TSB3-GXR-4360-51 1 8 R-4360-C3R-4360-51 213 R-4360-C3R-4360-53 2240 R-4360-C6R-4360-53 Ford c.1950/1954 R-4360-C6R-4360-55 16 R-4360-C5R-4360-57 0 R-4360-C7R-4360-59 8 R-4360-CB4
R-4360-59A R-4360-CB4R-4360-59A Ford c.1950/1954 R-4360-CB4R-4360-59B 4260 R-4360-CB4R-4360-59B Ford c.1950/1954 R-4360-CB4R-4360-61 6 R-4360-CB4R-4360-61 Ford c.1950/1954 R-4360-CB4R-4360-63 6 R-4360-CB11R-4360-63 Ford c.1950/1954 R-4360-CB11
R-4360-63A R-4360-CB11R-4360-63A Ford c.1950/1954 R-4360-CB11R-4360-63BR-4360-65 R-4360-B6
R-4360-TSB1-GXR-7755-1 Lycoming XF-7 6.3750 6.7500 7756.33XR-7755-3 Lycoming 2 XF-7XR-7755-5 Lycoming
Rotating Combustion Chamber (Wankel)YRC-180-2 Curtiss-Wright c.1966 RC2-90Y2 na na 179.04
Two-Row Inline (V)V-032 Andover 2.7500 2.6875 31.93
V-032DXV-105-2 Kiekhaefer 0.00V-105-2V-720 Wright E 4.7244 5.1181 717.77
V-1008 Continental 1931 4.6250 5.0000 1008.01V-1150-1 Curtiss D-12C 4.5000 6.0000 1145.11V-1150-3 D-12DV-1150-5 D-12EV-1150-7 D-12FV-1150-9 D-12GV-1237 Packard 1A-1237 5.0000 5.2500 1237.00V-1400 Curtiss 1924 12 4.8750 6.2500 1399.91V-1400 CurtissV-1410 Engineering Division 1924 1 4.6250 7.0000 1411.21
GV-1410 Allison 1925 8V-1410-1 Allison 1925 5
XV-1430-1 Continental 5.5000 5.0000 1425.50
Page 41 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-1430-1 ContinentalV-1430-3 ContinentalV-1440 Curtiss 0.00V-1440 Continental 0.00
V-1460-1 Curtiss-Wright 1929 4.8750 6.5000 1455.91V-1460-3 Curtiss-WrightV-1500 Curtiss 0.00V-1510 Curtiss 0.00V-1550 Curtiss 1926 5.1250 6.2500 1547.17
GV-1550 Curtiss 5.1250 6.2500 1547.17V-1560-1 Wright 2 5.0000 6.6250 1560.98
V-1570-1 Curtiss Conqueror V-1570 5.1250 6.2500 1547.17V-1570-3 GV-1570V-1570-5 GIV-1570V-1570-7 GIV-1570V-1570-9 V-1570-A
V-1570-11 GIV-1570-A1V-1570-13 GIV-1570-A2V-1570-15 SV-1570-AV-1570-17 V-1570-BV-1570-19 GV-1570-BV-1570-21 GIV-1570-B
V-1570-23 V-1570-C1
V-1570-25 V-1570-C2V-1570-27 GIV-1570-C1V-1570-29 GIV-1570-C2V-1570-31 V-1570-E1V-1570-33 GIV-1570-E2V-1570-35 V-1570-E2V-1570-37 GIV-1570-E2V-1570-39 V-1570-CMV-1570-41 GIV-1570-CMV-1570-43 V-1570-EXV-1570-45 GIV-1570-EXV-1570-47 V-1570-EMV-1570-49 GIV-1570-EMV-1570-51 V-1570-FV-1570-53 GIV-1570-FV-1570-54V-1570-55 V-1570-FV-1570-57 GIV-1570-FV-1570-59 GIV-1570-FV-1570-61 GV-1570-TSSV-1570
V-1650-1 Allison V-1650-A 5.0000 7.0000 1649.34V-1650-2 AllisonV-1650-3 Allison V-1650-DV-1650-5 Allison V-1650-E
Page 42 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-1650-7 Allison V-1650-FV-1650-9 Allison V-1650-HD
V-1650-11 Allison V-1650-NV-1650-13 Allison 35 IV-1650V-1650-1 Packard 2760 Merlin 5.4000 6.0000 1648.96V-1650-3 Packard 5851 V-1650-B5V-1650-3 Continental 2
XV-1650-5 Packard 1V-1650-7 Packard 6325V-1650-7 Continental 752V-1650-9 Packard 1460V-1650-9 Continental 124
V-1650-9A PackardV-1650-11 Packard 2V-1650-13 Packard 1V-1650-15 Packard 1V-1650-17 Packard 2V-1650-17 Continental 19V-1650-19 Packard 2
XV-1650-21 PackardXV-1650-23 PackardV-1650-23 Packard 40V-1650-25 Packard 40
V-1650-209 PackardV-1650 Ford Merlin 5.4000 6.0000 1648.96
XV-1650 Ford 7/1940 8/1941 GGA 5.4015 6.0000 1649.88XV-1650 Ford 10/1942 GGB 5.4015 6.0000 1649.88
GV-1710-A Allison 6/28/1930 1 5.5000 6.0000 1710.60XV-1710-1 Allison 1932 1XV-1710-2 Allison 1933 1 V-1710-BXV-1710-3 Allison 1YV-1710-3 Allison 10XV-1710-4 Allison 1YV-1710-4 Allison 2XV-1710-5 Allison 0YV-1710-5 AllisonXV-1710-6 Allison 2V-1710-6 Allison
XV-1710-7 Allison 2 V-1710-C4YV-1710-7 Allison 3 V-1710-C4XV-1710-9 Allison 1YV-1710-9 Allison 4V-1710-11 Allison 3 1 V-1710-C8
YV-1710-13 Allison 1 42 V-1710-D1XV-1710-15 Allison 1 V-1710-C9XV-1710-17 Allison 2 V-1710-E2V-1710-17 Allison 16 V-1710-E2V-1710-19 Allison 1 2 V-1710-C13V-1710-21 Allison <20 V-1710-C10V-1710-23 Allison 35 V-1710-D2V-1710-25 Allison 39 V-1710-F1V-1710-27 Allison 540 V-1710-F2R
Page 43 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-1710-29 Allison 540 V-1710-F2LV-1710-31 Allison 2 V-1710-E2V-1710-33 Allison 2250 V-1710-C15V-1710-35 Allison 2155 V-1710-E4V-1710-37 Allison 16 V-1710-E5V-1710-39 Allison 4694 V-1710-F3RV-1710-41 Allison 4 V-1710-D2AV-1710-43 Allison 1 V-1710-F8V-1710-45 Allison 1 V-1710-F7RV-1710-47 Allison 7 5700 V-1710-E9V-1710-49 Allison 1030 V-1710-F5RV-1710-51 Allison 1752 V-1710-F10RV-1710-53 Allison 1030 V-1710-F5LV-1710-55 Allison 1753 V-1710-F10LV-1710-57 Allison 1 V-1710-F11RV-1710-59 Allison 25 V-1710-E12V-1710-61 Allison 29 V-1710-F14V-1710-63 Allison 946 V-1710-E6V-1710-65 Allison 1 V-1710-E16V-1710-67 Allison 2 V-1710-E8
XV-1710-69 Allison 1 V-1710-F18XV-1710-71 Allison 1 V-1710-F19V-1710-73 Allison 1883 V-1710-F4RV-1710-75 Allison 19 V-1710-F15RV-1710-77 Allison 6 V-1710-F15L
XV-1710-79 Allison 1 V-1710-F4LV-1710-81 Allison 4817 V-1710-F20R
V-1710-81A AllisonV-1710-83 Allison 1034 V-1710-E18V-1710-85 Allison 9780 V-1710-E19V-1710-87 Allison 835 V-1710-F21RV-1710-89 Allison 5429 V-1710-F17R
V-1710-89A Allison V-1710-F17RV-1710-91 Allison 5421 V-1710-F17L
V-1710-91A Allison V-1710-F17LV-1710-93 Allison 2521 V-1710-E11V-1710-95 Allison 6 V-1710-F23RV-1710-97 Allison 5 V-1710-G1
V-1710-97A Allison 5V-1710-99 Allison 4200 V-1710-F26R
V-1710-99A AllisonV-1710-101 Allison 3 V-1710-F27R
XV-1710-103 Allison 10 V-1710-E23XV-1710-105 Allison 2 V-1710-F29RV-1710-107 Allison 2 V-1710-F29LV-1710-109 Allison 222 V-1710-E22
V-1710-109A Allison 128 V-1710-E22XV-1710-111 AllisonV-1710-111 Allison 6348 V-1710-F30R
XV-1710-113 AllisonV-1710-113 Allison 6344 V-1710-F30LV-1710-115 Allison 560 V-1710-F31R
Page 44 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
V-1710-115A Allison 420 V-1710-F31LV-1710-117 Allison 2237 V-1710-E21
XV-1710-119 Allison 5 V-1710-F32RV-1710-119 Allison
XV-1710-121 Allison 4 V-1710-F28RXV-1710-123 Allison 0 V-1710-F28LXV-1710-125 Allison V-1710-E24V-1710-125 Allison 4+?V-1710-127 Allison 1 V-1710-E27
XV-1710-129 AllisonV-1710-129L Allison 2+?V-1710-129R Allison 2+?XV-1710-131 Allison V-1710-C3V-1710-131 Allison 8
XV-1710-133 Allison 8 V-1710-E30XV-1710-135 AllisonV-1710-135 Allison 258
XV-1710-137 Allison V-1710-E23CXV-1710-137L Allison 2XV-1710-137R Allison 2
V-1710-139 Allison 0V-1710-141 Allison 0 V-1710-F33LV-1710-143 Allison 375 1 V-1710-G6RV-1710-145 Allison 375 V-1710-G6LV-1710-147 Allison 0 V-1710-G9RV-1710-149 Allison 0 V-1710-G9LV-1710-C15 AllisonV-1710-E4 Allison
V-1800 Curtiss-Wright 1932 Super Conqueror SGIV-1800 5.6250 6.0000 1789.24V-1950 Wright T-3 5.7500 6.2500 1947.54
XV-3420-1 Allison 1 5.5000 6.0000 3421.19V-3420-1 Allison 6V-3420-2 Allison 2V-3420-3 Allison 6
XV-3420-5 Allison 4 V-3420-B4XV-3420-7 Allison 1 V-3420-B5XV-3420-9 Allison 1 V-3420-A11R
XV-3420-11 Allison 17 V-3420-A16RV-3420-11 Allison 500
XV-3420-13 Allison 4 V-3420-A16LV-3420-15 Allison 1 V-3420-A17RV-3420-17 Allison 7 V-3420-A18R
XV-3420-19 Allison 12 V-3420-B8XV-3420-21 Allison 1 V-3420-A20RXV-3420-23 Allison 101 V-3420-B10XV-3420-25 Allison 4 V-3420-A18LXV-3420-27 Allison 1 V-3420-A23V-3420-29 Allison 2 V-3420-B11
XV-3420-31 Allison 0 V-3420-A24RDV-6840 Allison 1940 5.5000 6.0000 6842.39
Three-Row Inline (W)
Page 45 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
W-2779 Engineering Division 5.5000 6.5000 2779.72
Four-Row Inline (X)X-1670 WrightX-2775 Packard 1927 1A-2775 5.3750 5.0000 2722.88X-3130 P&W 5.7500 5.0000 3116.07
X-3420-1 Allison 0 5.5000 6.0000 3421.19X-3420-3 Allison 0X-4240 Wright 6.1250 6.0000 4242.92X-4520 Allison 1924 1927 1 5.7500 7.2500 4518.30X-5340 Engineering Division 6.2500 7.2500 5338.25
UndesignatedC-10 Homelite c.1951 HRU-28 0.00
C-13A Waukesha c.1951 ICK 0.00E-005 ? c.1950 54 0.00
N-1610 ? c.1949 3 0.00O-861-C ? c.1951 6 0.00
115-I Alfa-Romeo c.1941 1 4.6457 5.5118 560.57Airship Diesel Allison 1927 1 8.6250 9.0000 3155.02
U-250 Allison c.1934 1 0.00As.10C Argus 4.7244 5.5118 772.98
Cheetah IX Armstrong Siddeley 5.2500 5.5000 833.43Cheetah X Armstrong Siddeley 5.2500 5.5000 833.43
IV BMW 6.2992 7.4803 1398.73132 BMW 6.1250 6.3750 1690.54
Hercules Bristol 5.7500 6.5000 2363.02Hercules Bristol 5.7500 6.5000 2363.02Jupiter Bristol 5.7500 7.5000 1752.79
Jupiter VIIF Bristol 5.7500 7.5000 1752.79Mercury XII Bristol 5.7500 6.5000 1519.08Mercury XX Bristol 5.7500 6.5000 1519.08
Mercury XXX Bristol 5.7500 6.5000 1519.08Pegasus XVIII Bristol 5.7500 7.5000 1752.79
Perseus XII Bristol 5.7500 6.5000 1519.08Cirrus II Cirrus 1927 1927 1 4.3307 5.1181 301.56
A50 Continental 3.8750 3.6250 171.00A65-7 Continental 3.8750 3.6250 171.00A65-8 Continental 3.8750 3.6250 171.00A75-9 Continental 3.8750 3.6250 171.00A-80 Continental 3.8750 3.6250 171.00
C-85-8FJ Continental c.1949 7 4.0625 3.6250 187.95C-90-8FJ Continental c.1949 3 4.0625 3.8750 200.91C-90-12 Continental 4.0625 3.8750 200.91
C-90-12F Continental 4.0625 3.8750 200.91C-145-2H Continental 4.0625 3.8750 301.37
E-185 Continental c.1950 16 5.0000 4.0000 471.24E-225 Continental c.1950 5.0000 4.0000 471.24
Hyper #1 Continental 10/5/1932 4.6200 5.0000 83.82Continental 3/1933 4.6200 5.0000 167.64
Hyper #2 Continental 0.00BR-1 CRM 5.9055 7.0866 3493.95
Page 46 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
RC 2-60 Curtiss-Wright na na na440 Cuyuna 2.6575 2.3622 26.20 438 cc
Gipsy I DeHavilland 1929 4.5000 5.0000 318.09Gipsy III DeHavilland 1931 4.5000 5.5000 349.89
Gipsy Major DeHavilland 4.6457 5.5118 373.72Gipsy Minor DeHavilland 1942 4.0000 4.5000 226.19
Gipsy Queen II DeHavilland 4.6457 5.5118 560.57Gipsy Queen III DeHavilland 4.6457 5.5118 560.57
DA-150 Desert Aircraft 1.9291 1.5748 9.21 150 cc447-C Fairchild Fairchild-Caminez 5.6250 4.5000 447.31
P.24 Monarch Fairey 1 5.2500 6.0000 3117.25SF2-350 Fichtel & Sachs 0.00 352 cc
G2G Ford 1940 9/1941 5.4015 6.0000 274.984AC-199-E3 Franklin 4.2500 3.5000 198.616A4-165-B3 Franklin 4.5000 3.5000 333.996AC-264F2 Franklin 4.0000 3.5000 263.89Dyad 220 Herbrandson 2.2835 1.6535 13.54
Dyad 280 B Herbrandson 2.5980 1.6140 17.118Ab Hispano-Suiza Type 41 4.7244 5.1181 717.779Qa Hispano-Suiza 5.0000 5.5118 974.02
12Y45 Hispano-Suiza 12/13/1941 1 5.9055 6.6929 2199.8912Ycrs Hispano-Suiza ~9/1935 1 5.9055 6.6929 2199.8918-S Hispano-Suiza c.1932 5.9055 6.6929 3299.84
GX-57 Honda 1.7717 1.4173 3.49 57 cc61 K&B 0.9400 0.8800 0.61 0.61
KB7ATS Kiekhaefer c.1945 2.4375 2.1250 19.83 325 cc?Mercury Mk.55 Kiekhaefer 2.4375 2.1200 39.57
K-5 Kinner 4.2500 5.2500 372.39R-5 Kinner 4.6250 5.2500 441.00
Kinney-Noble 1927 5 4.5000 4.0000 318.09150D2-B L.A.E 1.9685 1.4236 8.67
L2400EB1.AD Limbach 4.0000 3.0000 150.804300 McCulloch 3.0000 3.1250 88.36
4318E McCulloch 3.1875 3.1250 99.75TC6150-J-2 McCulloch 3.1875 3.1250 149.62B-4 Pirate Menasco 1 4.5000 5.1250 326.04
B-6 Bucaneer Menasco 4.5000 5.1250 489.06C-4 Menasco 4.7500 5.1250 363.27
C-6S-4 Super Buccaneer Menasco 4.7500 5.1250 544.91C-6S-5 Super Buccaneer Menasco 4.7500 5.1250 544.91
D-4 Pirate Menasco 1940 4.7500 5.1250 363.27D-4B Super Pirate Menasco 1941 4.7500 5.1250 363.27
180 Mercedes-Benz 2.5787 3.1102 48.73 800 cc151 Miller c.1927 3.4060 4.1250 150.34
Moto Guzzi 3.1496 2.9134 45.40 750 ccSabre Chrysler 5.0000 4.7500 2238.38
Sabre IIA Napier 5.0000 4.7500 2238.38H-56 Nelson 0.00H-59 Nelson 2.6250 2.7500 59.53
H-63A Nelson 2.6875 2.7500 62.40H-63B Nelson 2.6875 2.7500 62.40100SS Quadra 2.2480 1.5000 5.95 100 cc
Page 47 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Ordered Delivered Delivered Modified Cancelled TestDesignation Manufacturer Dates Production ManufacturerModel IN3Calculated
IN3Bore Stroke
Power Products 0.00Power Products 0.00
Bengali 6 Renault 41 4.7244 5.5118 579.74Bengali 6Q-09 Renault 4.7244 5.5118 579.74
Righter 1 0.00Righter 3 0.00
Sidewinder Righter 0.00Griffon III Rolls Royce 6.0000 6.6000 2239.33Griffon 66 Rolls Royce 6.0000 6.6000 2239.33Merlin II Rolls Royce 5.4000 6.0000 1648.96Merlin III Rolls Royce 5.4000 6.0000 1648.96Merlin XX Rolls Royce 5.4000 6.0000 1648.96Merlin 28 Packard 5.4000 6.0000 1648.96Merlin 31 Packard 5.4000 6.0000 1648.96Merlin 61 Rolls Royce 5.4000 6.0000 1648.96Merlin 76 Rolls Royce 5.4000 6.0000 1648.96
Merlin 113 Rolls Royce 5.4000 6.0000 1648.96Merlin Rolls Royce 1944 2 RM.14.SM 5.4000 6.0000 1648.96
Peregrine I Rolls Royce 5.0000 5.5000 1295.91912 S4 Rotax 3.3071 2.4016 82.52
914 Rotax 3.1299 2.4016 73.91914 F Rotax 3.1299 2.4016 73.91
Ash-621R Shvetsov 6.1220 6.8740 1821.11Noah T. Smith c.1936 0.00
Centurion 1.7 Thielert 3.1496 3.3071 103.06Centurion 4.0 Thielert 3.3858 3.3858 243.88
3W-56 3W Modellmotor 1.4200 1.1000 3.48 56 cc3W-150i 3W Modellmotor 1.9300 1.5700 9.19 150 cc
AR741-38 UAV Engines Ltd. na na naAR741-1100 UAV Engines Ltd. na na na 308 ccAR741-1101 UAV Engines Ltd. na na na 308 cc
AR801R UAV Engines Ltd. na na na 294 cc50-499 Warner 4.6250 4.2500 499.80T-14 Wright 39 2 2 Tornado T-14 4.2500 3.6260 720.15
WM-80 Wright-Morehouse 3.7500 3.6250 80.07Totals 484471 11648 60158 9
Page 48 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Undesignated 1908-1924
AbadalDragonfly I A.B.C.
Dragonfly IA A.B.C.Gnat I A.B.C.
Mosquito A.B.C.Wasp I A.B.C.
AdlerAL-24 Aeromarine
B AeromarineB Aeromarine
T-6 AeromarineU-6-D AeromarineU-873 AeromarineU-8-D Aeromarine
AeromarineS-12 AeromarineA-1 AlmenA-2 AlmenA-3 AlmenA-4 AlmenA-5 Almen
San Giorgio 4E-145 AnsaldoSan Giorgio 4E-150 AnsaldoSan Giorgio 4E-28 AnsaldoSan Giorgio 4E-28 Ansaldo
8V AntoinetteAnzani
5 Anzani10 Anzani10 Anzani10 Anzani10 Anzani
20B AnzaniArgus
As III O OpelArgus
As IV ArgusArgus
Lynx I Armstrong SiddeleyJaguar I Armstrong Siddeley
AshmusenAustro-DaimlerAustro-DaimlerAustro-DaimlerAustro-Daimler
D35 Austro-DaimlerAustro-DaimlerBasse-SelveBasse-Selve
6-1A Beardmore
Designation Manufacturer Number Rows Arrangement Cooling Intake Exhaust Arrangement
12 3 Y L 2 2 R 705 350 20009 1 R A 1 2 2 4.420 D 656 320 16509 1 R A 1 2 2 4.420 D 660 360 16502 1 O A 1 2 1 3.800 D 82 45 19206 2 R A 1 2 1 4.050 D 180 125 17007 1 R A 1 2 2 4.025 D 289 170 18008 2 U L 2100:1150 225 2000
24 4 VV L 850 16508 2 45 V L 2 2 5.000 148 22758 2 90 V L 2 2 5.000 148 22756 1 L L 200 17006 1 L L 2 2 5.120 D 440 125/130 16258 2 60 V L 250 18008 2 60 V L 2 2 5.250 D 562.5 180/240 17506 1 L L 1 1 2 D 90 1400
12 3 W L 6.000 1050 630 165014 2 B 4.545 21.9 155018 2 L 37518 300?18 2 L 749 425 2000
26 1 L L 2 2 D 639.5 290 16506 1 L L D 649 300 1650
12 2 V L 2 2 5.200 D 1125 520 165012 2 V L 2 2 400/450 16508 2 V L D 209 50 11003 1 R A 1 1 D 121.3 25/30 13003 1 R A 50
10 2 R A 9010 2 R A 1 1 4.480 D 386 100 132010 2 R A 1 1 3.980 D 494 110 120010 2 R A 1 1 5.300 D 475 200 135020 2 R L R 1212 650 17006 1 L L 1 1 4.650 D 500 110 13006 1 L L 1 1 4.750 D 722.5 180 14006 1 L L8 2 V L 2 2 1800:1200 200
12 3 W L 270 15007 1 R A 1 1 D 390 150 1500
14 2 R A 1 1 5.000 D 680 300 15002 O
6 1 L L 2 2 D 550 120 12006 1 L L D 706 150 14006 1 L L 2 2 5.020 D 706.3 200 1400
12 2 V L 30012 1 V L 3506 1 L L 2 2 D6 1 L L R 430 130 14006 1 L L 2 2 4.340 D 870 2706 1 L L D 90 1300
Cylinder @RPMWeight HPCRCarbs Gear RatioValves
Page 49 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Beardmore6-2B Beardmore185 Becker
B.R.1 BentleyB.R.2 BentleyBz I Benz
Bz III BenzBz IIIa BenzBz IV Benz
BenzBz IIIbo BenzBz IIIbv Benz
Bz V BenzBz Vb Benz
VI BenzVIv Benz
BHPBinetti
IIba B.M.W.IIIa B.M.W.IV B.M.W.6 B.M.W.
BredaBugattiBugatti
16 BugattiCato
ChristoffersonClement BayardClement Bayard
7-Z Clerget9-B Clerget
9-Ba Clerget9-Bc Clerget9-F Clerget9-Z Clerget
Clerget11Eb Clerget11G Clerget16X ClergetC ColomboD ColomboE Colombo
ColomboC-2 ContinentalE-7 Continental
Lucifer CosmosMercury CosmosJupiter CosmosJupiter Cosmos
Hercules CosmosE-4 Curtiss
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
6 1 L L 1 1 4.850 D 538 120 12006 1 L L 1 1 4.760 D 592 160/175 12506 1 L L 635 218 16209 1 R A 1 1 5.900 D 408 150 12509 1 R A 1 1 5.010 D 500.9 230 13006 1 L L D 100 14006 1 L L 1 1 4.500 D 577.6 160 14006 1 L L 1856 1 L L 2 2 5.800 D 634.3 200 14006 1 L L 2 2 4.930 D 794.9 230 14008 2 V L D 682 195 14008 2 V L 1 1 19:29 684 195 1800
12 2 V L 1 2 17:29 1058 300 150012 2 V L 1 2 19:29 948 300 180012 2 V L 2 2 D 1532 500 140012 2 V L 2 2 D 1532 500 15006 1 L L 1 2 4.760 D 635.8 200 12504 1 L L 2 2 4.800 200:119 715 300 20006 1 L L 1 1 6.420 D 441 120 14006 1 L L 1 1 6.420 D 635 185 14006 1 L L 6.420 D 620 220 14006 1 L L 2438 2 V L 320 16508 1 L L 2 1 5.000 32:47 507 210 2100
12 2 U L 2 1 5.000 375 210016 2 U L 2 1 4 5.000 32:47 1120 420 20002 1 O A 1 1 4.330 D 134 72 18256 1 L L 120 14008 1 L L 1 1 D 300 1200
16 2 V L 1 1 D 500 9007 1 Ro A 1 1 D 234 80 12009 1 Ro A 1 1 4.560 D 400 130 12509 1 Ro A 130 12509 1 Ro A 135 12509 1 Ro A 6.000 D 374.2 140 12509 1 Ro A 1 1 4.360 D 380 100 1200
11 1 Ro A 5.1/7.1 D 512 200 131011 1 Ro A 5.750 D 500 220 130011 1 Ro A 5.700 D 497.5 260 132016 4 X L D 761 400 15506 1 L L 1 1 1066 1 L L 5.470 D 474 120 13006 1 L L 4.850 D 606 150 1500
1254 1 L L
3 1 R A 4.800 D 220 100 160014 2 R A 1 2 5.100 D 587 315 18009 1 R A 2 2 5.100 D 636 400 16509 1 R A 2 2 5.100 12:18.5 757 400 1650
18 2 R A 2 2 11.5:17.5 1400 1000 17504 1 L L 1 1 OHV 1 20
Page 50 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
E-4 CurtissH/K Curtiss
L CurtissN CurtissO Curtiss
OX Curtiss
OX-2 Curtiss
OX-5 CurtissOX-5 Willys MorrowOX-5 Willys OverlandOXX Curtiss
OXX-2 CurtissOXX-3 CurtissOXX-5 CurtissOXX-6 Curtiss
S CurtissV Curtiss
VX CurtissGeared VX Curtiss
VXX CurtissV2 Curtiss
V2-3 CurtissV2-10 Curtiss
V2-C10 CurtissV-4 CurtissV-6 CurtissV-7 CurtissAB CurtissC-6 CurtissK-6 Curtiss
D-1200 CurtissK-12 CurtissK-12 CurtissC-12 Curtiss
CD-12 Curtiss
D-12 CurtissD-12A CurtissD-12C CurtissD-12D Curtiss
Inverted D-12 CurtissR-6 CurtissD III Daimler
D IIIa DaimlerD IIIa DaimlerD IV Daimler
D IVa DaimlerDamblancde Dion
De Palma
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
4 1 L L 1 1 OHV 1 50 15004 1 L L 1 1 OHV 408 2 90 V L 808 2 90 V L 608 2 90 V L 75 11008 2 90 V L 90 1200
8 2 90 V L 90
8 2 90 V L 1 1 4.500 D 385 90 14008 2 90 V L 90 14008 2 90 V L 90 14008 2 90 V L 100/102 14008 2 90 V L 1 1 D 100 14008 2 90 V L 1008 2 90 V L 75, 1008 2 90 V L 100 14006 1 L L 608 2 90 V L 160 11008 2 90 V L 1 1 4.710 D 160 13508 2 90 V L8 2 90 V L 2008 2 90 V L 1 1 D 725 200 14008 2 90 V L 1 1 R 200 14008 2 90 V L8 2 90 V L 200
12 2 V L 4008 2 90 V L 1:1 1/2 210 15008 2 90 V L 1:1 1/2 210 1500
12 2 V L 2 2 300 22506 1 L L 2 2 5.400 D 441 160 17506 1 L L 2 2 D 417 150 1700
12 2 60 V L 2 2 37512 2 60 V L 2 2 5.630 5:3 680 375 235012 2 60 V L 2 2 6.000 5:3 40012 2 60 V L 2 2 5.500 5:3 698 375/400 180012 2 60 V L 2 2 5.250 D 704 350/400/405/450 1800
12 2 60 V L 44012 2 60 V L 488/50012 2 60 V L 5.300 440 230012 2 60 V L 5.300 440 230012 2 60 IV L6 1 L L 400 14506 1 L L 1 1 4.500 D 618 160 14006 1 L L 1 1 4.640 D 635 180 14006 1 L L 1 1 5.480 D 645.4 200 14008 1 L L 1 1 4.730 1:154 900 240 13506 1 L L 2 2 4.940 D 936 260 1400
11 1 R A 1 1 4.8 to 7 D 441 20016 4 X L 2 2 D 1990 800 14004 2 90 V A 151 37
Page 51 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-4 De PalmaVictory C-6 Dodge Tool
4 Duesenberg4 Duesenberg4 Duesenberg
Bugatti DuesenbergH Duesenberg
H-2 DuesenbergKing Aeronautical Engine Co.King Duesenberg
Attendu Airship Diesel Eastern Engineering Co.W-1 Engineering Division
W-1A Engineering DivisionW-1B Engineering DivisionW-2 Engineering DivisionW-3 Engineering Division
FarmanFarmanFarman
A-10 FiatA-12 FiatA-12 FiatA-12 FiatA-12 Fiat
A-12bis FiatA-14 FiatA-15 Fiat
A-15R FiatA-18 Fiat
San Giorgio FiatFimaFima
Adriatic GallowayAtlantic Galloway
BHP GallowayGoe VI Goebel
GoebelGoe II GoebelGoe III Goebel
7- GnomeB-2 Gnome
Gamma-Gamma GnomeLambda-Lambda Gnome
9-N Gnome9-N Gnome9-N Gnome
9-Nb Gnome9-Nc Gnome
Gnome11- Gnome
GnomeGnome
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
4 2 V 40/506 1 R A 1 2 D 394 66.5 9504 1 L L 2 2 1 Miller D 436 100/105 15004 1 L L 2 2 1 Miller 0.579 509 150 21004 1 L L 2 2 1 Miller 0.579 470 150 2100
16 2 U L 2 1 5.000 28:42 1150 420 200016 2 45 V L 1 2 4 Miller 4.660 1:1.32 1575 760/800 195016 2 45 V L 1 2 4 Miller 4.660 D 1560 700 135012 2 45 V L 1 2 2 5.000 0.692 990 500 170012 2 45 V L 1 2 2 5.000 0.692 990 500 17002 1 L L 2 P SOHC D 75/85 1620
18 3 40 W L 2 2 6-1V 5.410 D 1725 700 170018 3 40 W L 75018 3 40 W L 75018 3 40 W L 2 2 D 2400e 1000e 140018 3 W L 1500e8 2 V L R 200
12 2 V L R 40018 3 W R 6006 1 L L 1 1 4.500 D 441 100 14006 1 L L 2 2 4.500 D 849 200 15006 1 L L 2406 1 L L 2606 1 L L 2856 1 L L 2 2 4.700 D 882 300 1600
12 2 60 V L 2 2 4.500 D 1743 600 150012 2 60 V L 2 2 5.000 1:151 772 300 240012 2 60 V L 2 2 5.500 16:23 425 22659 1 R A 2 2 5.500 D 507 300 1800
12 2 V L D 992.5 450 16008 1 R A 1 1 4.000 D 271.4 80 11008 1 R A 1 1 4.000 D 297.6 100 11506 1 L L 1 2 4.960 D 690 240 1400
12 2 60 V L 1 2 5.400 D 1316 500 15006 1 L L 1 2 4.960 D 685 230 13507 1 Ro A 1 1 4.600 D 121.3 30 11507 1 Ro A 1 1 5.200 D 165.3 50 11507 1 Ro A 1 1 4.500 D 271.5 100 11509 1 Ro A 1 1 5.200 D 403.6 200 11507 1 Ro A 1 1 3.750 D 210 80 12509 1 Ro A 0 1 4.000 D 260 100 1200
14 2 Ro A 140 120014 2 Ro A 160 12009 1 Ro A 0 1 5.440 D 330 160 13009 1 Ro A 1509 1 Ro A 1709 1 Ro A 1509 1 Ro A 1509 1 A D 420 200 1250
11 1 Ro A 0 1 D 380 200 130018 2 Ro A D 540 200 120018 2 Ro A 0 1 5.400 D 660 300 1350
Page 52 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Gnome
Gnome B-2 General VehicleGnome B-2 Aeronautical Engine Co.
Gnome Pittsburgh Model EngineGnome 9-N General Vehicle
GreenGreenGreenGyro
L GyroA-2 Hall-Scott
A-5 Hall-ScottA-5 Hall-Scott
A-5A Hall-ScottA-5A Special Hall-Scott
A-7 Hall-Scott
A-7A Hall-ScottA-7A Experimental Hall-Scott
A-8 Hall-ScottL-4 Hall-ScottL-6 Hall-Scott
HansaType S Headstrom
II Hiero8-A Hispano-Suiza
8-Aa Hispano-Suiza8-Ab Hispano-Suiza8-Ac Hispano-Suiza8-B Hispano-Suiza
8-Ba Hispano-Suiza8-Bba Hispano-Suiza
8- Hispano-Suiza8-Bc Hispano-Suiza8-Be Hispano-Suiza8-Bec Hispano-Suiza8-Cb Hispano-Suiza8-F Hispano-Suiza
8-Fb Hispano-SuizaV.4A Isotta-FraschiniV.4B Isotta-FraschiniV.4B BianchiV.5 Isotta-FraschiniV.6 Isotta-FraschiniV.6 Isotta-FraschiniV.7 Isotta-FraschiniV.8 Isotta-FraschiniV.9 Isotta-Fraschini
Jaenson
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
20 4 R A D 600 1400
9 1 Ro A 1009 1 Ro A 1009 1 Ro A9 1 Ro A 0 1 5.440 D 330 150/160 13006 1 L L 1 1 4.390 D 460 100 12506 1 L L 4.780 D 597 145 1250
12 2 V L 1 1 D 300 12007 1 Ro A 1 1 D 160 50 15009 1 Ro A 1 1 D 270 110 12008 1 90 V L D 60 1400
6 1 L L 125/130 12506 1 L L 1 1 D 565 140 1400
6 1 L L 1 1 D 656 150 14006 1 L L 1754 1 L L 1 1 D 410 90 1400
4 1 L L 1 1 D 100 14004 1 L L 100
12 2 60 V L 1 1 D 800 450 17004 1 L L 1 1 5.500 D 625 125 16506 1 L L 1 1 6.555 D 546.2 200/220 1700
16 4 X L 1070 360 1400
6 1 L L 1 1 5.060 D 694.5 200 14008 2 90 V L 1 1 1508 2 90 V L 1 1 1808 2 90 V L 1 1 1808 2 90 V L 1 1 2008 2 90 V L 1 1 2108 2 90 V L 1 1 2008 2 90 V L 1 1 2158 2 90 V L 1 1 2208 2 90 V L 1 1 2358 2 90 V L 1 1 2358 2 90 V L 1 1 2358 2 90 V L 1 1 2208 2 90 V L 1 1 5.300 3:4 660 300 18008 2 V L 1 1 3006 1 L L 1 1 5.000 D 573.5 150 13506 1 L L 1 1 5.000 D 605 150/160/170/190 14506 1 L L 1 1 5.000 D 605 150 13508 7 L L 1 1 5.000 D 825 250 14006 1 L L 1 1 5.100 D 620 250 16506 1 L L 1 1 270
12 2 V L 5.000 D 1078 460 15006 1 L L D 595 290 18006 1 L L D 682 310 17008 2 V L 5.200 D 760 300 1400
Page 53 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Joffert4A Kessler6A Kessler
6B-400 KesslerKinner
K-1 KinnerKinner
5RA Kinney-Noble12 Knox
LanciaLancia
A-3 LawranceA-3 ExcelsiorB LawranceJ Lawrance
J-1 LawranceJ-2 LawranceL Lawrance
L-1 LawranceL-2 LawranceL-3 LawranceL-4 LawranceL-4 LawranceL-5 LawranceN Lawrance
N-2 LawranceR Lawrance
R-1 LawranceT-2 Lawrance
Maedler LawranceMaedler Lawrance
Le Maitre & GerardType Z Le Rhone
7 Le Rhone
9-C Le Rhone9-J Le Rhone9-J Le Rhone
9-Jb Le Rhone9-Jby Le Rhone
Le RhoneLe Rhone
9-R Le RhoneLe RhoneLe Rhone
Le Rhone 9C Union Switch & SignalLe Rhone 9C Tampier Union Switch & Signal
Liberty 4B HudsonLiberty 6A Thomas-MorseLiberty 6B Wright
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
16 2 V L 5.300 D 970 500 18004 1 L L 1356 1 L L 2006 1 L L 300/4005 1 603 1 R A 655 1 R A 845 1 R A 5.200 60/80 1800
12 2 V L 2 2 D 300 140012 2 V L D 320 145012 2 V L D 300 14502 1 O A 1 1 1 28 14502 1 O A 1 1 1 28 14503 1 R A 35/459 1 R A
9 1 R A 1 1 D 430 200 18009 1 R A3 1 R A 553 1 R A 633 1 R A 643 1 R A 403 1 R A 403 1 R A 603 1 R A2 1 R A 402 1 R A 409 1 R A 1 1 3 D 398 140 16009 1 R A 140
AA
8 2 V L 1 2 D 1260 700 16009 1 Ro A 1 1 D 143.3 60 14007 1 Ro A 1 1 4.700 D 247 80 1250
9 1 Ro A 809 1 Ro A 1 1 4.700 D 331 110 12009 1 Ro A 120 12009 1 Ro A 1309 1 Ro A 1309 1 Ro A D 406 150
1609 1 Ro A 1 1 5.650 D 379.1 180 13609 1 Ro A D 540 200
18 2 Ro A 1 1 D 660 350 1350
9 1 Ro A 809 1 Ro A --4 1 L L 1 1 2 D 102 14006 1 L L 1 1 2 5.420 D 580.4 220 17006 1 L L 1 1 2 D 220
Page 54 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
U.S.A.8 Packard
Liberty 8A BuickLiberty 8A Engineering DivisionLiberty 8A Willys OverlandLiberty 8A WintonU.S.A.12 Packard
Liberty 12A
Liberty 12A BuickLiberty 12A CadillacLiberty 12A DuesenbergLiberty 12A FordLiberty 12A LincolnLiberty 12A Nordyke & MarmonLiberty 12A PackardLiberty 12A Trego MotorsLiberty 12A Willys Overland
Liberty 12A
Liberty 12A
Liberty 12ALiberty 12B PackardLiberty 12C PackardLiberty 12E Packard
Liberty 12N PackardLiberty 12N LincolnLiberty 12S PackardLiberty 12 Aeromarine
Liberty 12 Modified PackardLiberty 12 Inverted Engineering DivisionLiberty 12 Inverted AllisonLiberty 12 2-Speed Allison
Liberty 12 Spur Gear AllisonLiberty 24 Engineering Division
GallaudetLorraine-Deitrich
8B Lorraine-Deitrich8Bb Lorraine-Deitrich
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
8 2 45 V L 1 1 2 D 275 1850
8 2 45 V L 1 1 2 5.420 D 2908 2 45 V L 1 1 2 5.420 D 650.9 290 17008 2 45 V L 1 1 2 5.420 D 2908 2 45 V L 1 1 2 5.420 D 290
12 2 45 V L 1 1 2 D 33012 2 45 V L 1 1 2 D 200/250/275/300
12 2 45 V L 1 1 2 5.420 D 856.5 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 180012 2 45 V L 1 1 2 5.420 D 400 1800
12 2 45 V L 1 1 2 5.420 D 425/435
12 2 45 V L 1 1 2 5.420 D 420
12 2 45 V L 1 1 2 5.420 D 43512 2 45 V L 1 1 2 1.667:1 40012 2 45 V L 1 1 2 3:2 420 190012 2 U L 1 1 2 1.6? 420 1700
12 2 45 V L 1 1 2 4.780 D 35012 2 45 V L 1 1 2 4.780 D 35012 2 45 V L 1 1 2 D -12 2 L 1 1 2 D12 2 45 V L 1 1 2 D 50012 2 45 V L 1 1 2 D 40012 2 45 V L 1 1 2 D 40012 2 45 V L 1 1 2 D 40012 2 45 V L 1 1 2 D 40024 4 X L 1 1 4 D 700 142036 2 V L8 2 V L 1 1 5.100 D 498 160 14008 2 V L 1 1 5.000 D 540 220/250 14508 2 V L 250
Page 55 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
8Bba Lorraine-DeitrichLorraine-Deitrich
12 Lorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-Deitrich
Mana III MANMana IIIa MAN
8200 MartinMaybachMaybachMaybachMaybach
Mb.IVa MaybachMb.IVa MaybachVL-1 MaybachVL-2 Maybach
4 Mead Engine Co.Miller
M-42 MorehouseMuffly
Murray & TregurthaC III N.A.G.Lion NapierCub NapierUr.II OberurselUr.III OberurselU.IV Oberursel
OpelOpel
O-8 OrloOtis-Piere
1A-258 Packard452 Packard
1A-744 Packard1A-825 Packard1A-905 Packard
1A-1116 Packard
1A-1237 Packard1A-1237 Packard2A-1237 Packard1A-1300 Packard
1A-1300 Modified Packard
1A-1500 Packard1A-1500 Inverted Packard1A-1500 Geared Packard
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
8 2 V L 2508 2 V L 4.700 D 547 275 1650
12 2 V L 1 1 5.250 D 805 350 150012 2 V L 1 1 D 827 350 150012 3 W L 1 1 5.250 D 720 400 150012 3 W L 1 1 D 720 400 150012 2 V L 2 2 5.000 D 1040 500 160012 3 W L 2 2 5.000 D 1014 525 160012 2 V L 2 2 1:2 1257 500 150024 3 W L 2 2 5.000 D 1873 1000 16006 1 L L6 1 L L 1858 2 V L 2 2 190 14006 1 L L 4.500 D 180 12006 1 L L 2 3 5.940 D 200 1200
2406 1 L L 5.940 D 900 250 16506 1 L L 2 2 5.910 D 910.5 245 14006 1 L L 2 2 6.700 D 860 300 1400
12 2 V L 5.300 2100 400 140012 2 60 V L 7.000 2347 560 16004 1 L L R R D 250 50
12 2 60 V L 1 1 4 Miller 500e2 2 O A
10 2 2 Ro A
6 1 L L 2 2 SOHC 2 Pallas 4.800 185 140012 3 W L 2 2 5.530 1:1.52 850 450/500 192516 4 X L 2 2 1:2.392 2240 1000 18009 1 R A 1 1 4.700 D 331 110 1200
11 1 R A D 1608 2 V L 1.9 673.5 240 21009 3 W L R 2006 1 L L 1 1 D 2008 2 90 V L 475 125 1400
12 2 V L 4.800 5:8 1211 500 22001 1 L L 2 2 506 1 L L 140e8 2 60 V L 1 1 1-2V 5.020 D 541.8 180 16008 2 60 V L 1 1 1-2V 230 1800
12 2 40 V L 180/25012 2 60 V L 1 1 1-2V 5.560 D 733.2 282/350 1600
12 2 60 V L 1 1 1-2V 6.500 D 738 300/325/350 180012 2 60 V L 1 1 1-2V 6.500 D 738 25012 2 60 V L 1 1 2-2V 35012 2 60 V L 2 2 2-2V 36012 2 60 V L 2 2 2-2V
12 2 60 V L 2 2 2-2V D 51012 2 60 V L 2 2 2-2V D 51012 2 60 V L 2 2 2-2V 510
Page 56 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
2A-1500 Packard2A-1500 Inverted Packard2A-1500 Geared Packard
3A-1500 Packard3A-1500 Inverted Packard3A-1500 Geared Packard
2A-1530 Packard1A-1551 Packard1A-1551 Packard1A-2025 Packard1A-2200 Packard1A-2500 Packard
1A-2500 Geared Packard2A-2500 Packard
2A-2500 Geared Packard3A-2500 Packard
3A-2500 Geared Packard4A-2500 Packard1A-2540 Packard2A-2540 Packard1A-2775 Packard1A-2775 Packard2A-2775 Packard
V12J Panhard-LevassorV12J Panhard-Levassor
Panhard-LevassorPanhard-Levassor
8-Aa PeugeotL41 Peugeot
16AJ PeugeotPeugeotPeugeotPeugeot
Pierce-Arrow1A R.A.F.1B R.A.F.3A R.A.F.4A R.A.F.4D R.A.F.5 R.A.F.
E-6 Rausie8C Renault8C Renault
Renault8Ca Renault8Ca Renault12D Renault
12Da RenaultRenault
8Gc Renault8Gdy Renault12Dc Renault
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
12 2 60 V L 2 2 2-2V 475/520/70012 2 60 V L 2 2 2-2V D12 2 60 V L 2 2 2-2V12 2 60 V L 2 2 2-2V 52012 2 60 V L 2 2 2-2V D12 2 60 V L 2 2 2-2V12 2 60 V L 6006 1 L L 2 2 5.500 1138 300 14006 1 L L 2 2 6.500 300 1400
12 2 60 V L 2 2 5.080 D 1142 540/600 180012 2 60 V L 2 2 680 200012 2 60 V L 2 2 2-2V D 475/50012 2 60 V L 2 2 2-2V 50012 2 60 V L 2 2 2-2V 750/80012 2 60 V L 2 2 2-2V 80012 2 60 V L 2 2 2-2V 710/77012 2 60 V L 2 2 2-2V 77012 2 60 V L 2 2 2-2V 90012 2 60 V L 800 200012 2 60 V L 800 200024 4 X L 120024 4 X L 120024 4 X L 140012 2 V L D 1080 300 180012 2 V L 1:1.8 1080 300 180012 2 V L 5.300 D 1100 500 160016 4 VV L 2 2 5.300 D 1433 650 16008 2 V L 2 2 1:2 200/220 1800
12 2 V L 2 2 4.700 D 1543.5 450 120016 2 V L 2 2 5.000 3:4 1048.5 500 200016 4 X L 2 2 5.300 D 993 500 140016 2 V L 9.5:16 1268 550 160012 2 V L D 600 14508 2 V L 2208 2 90 V A 1 1 4.380 0.5 450 90/92 16008 2 90 V A 110
12 2 60 V L 1 1 4.750 1:2 780 200 170012 2 60 V A 1 1 1:2 637 150 180012 2 60 V A 1 1 1:2 660 180 180012 2 60 V A 1 1 1:2 640 180 18006 1 L L 1 1 5.491 D 534.4 175 16508 2 90 V A 1 1 1:2 440 70 18008 2 90 V A 1 1 1:2 490 70 18008 2 V A 1 1 1:2 455 75 18008 2 90 V A 1 1 1:2 480 80 18008 2 90 V A 1 1 1:2 520 80 1800
12 2 50 V A 90 180012 2 50 V A 100 1800
1608 2 90 V L 1 1 5.270 D 474 190 16008 2 90 V L 200
12 2 50 V L 130
Page 57 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
12- RenaultRenault
12Fcx Renault12Fcy Renault12Fe Renault12- Renault12- Renault12- Renault12M Renault12- Renault
R.E.P.6 Roberts
6X RobertsCondor Rolls-Royce
Condor I Rolls-RoyceCondor I Rolls-RoyceHawk I Rolls-RoyceHawk II Rolls-Royce
190 Rolls-RoyceRolls-Royce
Falcon I Rolls-RoyceFalcon II Rolls-RoyceFalcon III Rolls-RoyceEagle I Rolls-RoyceEagle II Rolls-RoyceEagle III Rolls-RoyceEagle IV Rolls-RoyceEagle V Rolls-RoyceEagle VI Rolls-RoyceEagle VII Rolls-RoyceEagle VIII Rolls-Royce
M9 SalmsonSalmsonSalmson
R9 SalmsonA9 Salmson
9RA SalmsonAB9 SalmsonZ9 Salmson
C.U. 9-ZM SalmsonZ9 SalmsonP9 Salmson
AZ9 SalmsonZ18 Salmson
SaunionPacific SiddeleyTiger SiddeleyTwin Siddeley
Puma SiddeleySh.4 Siemens-HalskeSh.5 Siemens
Sh III/a Siemens-Halske
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
12 2 V L 1 1 4.360 D 807 220 1200250
12 2 50 V L 1 1 D 300 155012 2 50 V L 31012 2 50 V L 5.000 794 280/30012 2 V L 2 2 5.000 2:3 836 400 210012 2 V L 1 1 5.000 D 966 450 160012 2 V L 1 1 5.000 R 966 450 160012 2 V L 2 2 5.000 D 1160 550 160012 2 V L 1168 6005 1 R A 1 1 D6 1 L L D 243 756 1 L L D 100 1200
12 2 60 V L 2 2 5.100 D 1200 540 165012 2 60 V L 2 2 5.100 2:3 1300 540 165012 2 60 V L 2 2 5.100 .554:1 1400 540 16506 1 L L 1 1 SOHC 5.100 D 75/85 13506 1 L L D 90 1500
12 2 60 V L 250/27012 2 60 V L 27012 2 60 V L 1 1 5.150 56:95 710 228 200012 2 60 V L 1 1 5.150 56:95 665 225 200012 2 60 V L 1 1 5.300 56:95 723 270 200012 2 60 V L 1 1 4.680 .64:1 900 255 180012 2 60 V L 1 1 4.530 .64:1 907 266 180012 2 60 V L 1 1 4.900 .64:1 907 284 180012 2 60 V L 1 1 4.900 .64:1 907 284 180012 2 60 V L 1 1 4.900 .64:1 910 322 180012 2 60 V L 1 1 4.900 .6:1 960 322 180012 2 60 V L 1 1 4.900 .6:1 960 322 180012 2 60 V L 1 1 5.900 5:3 880 350 18009 1 R L 110/120 12809 1 R L 1 1 D 552 125 13009 1 R L 1 1 D 525 140 13009 1 R L 1 1 5.160 D 601 150 13009 1 R L 225/230 12809 1 R 1 1 D 506 230 15009 1 R L 1 1 5.200 D 507.5 210 15509 1 R L 2709 1 R L 1 1 5.400 D 478 230 15009 1 R L 230 15009 1 R L 150 13009 1 R 2 2 5.200 D 662 300 1500
18 2 R L 1 1 5.300 D 1003 500 15006 1 L L 5.700 D 850 500 1600
12 2 V L 1 2 4.900 D 1210 500 175012 2 60 V L 2 2 5.200 19:34 1350 700 17002 1 O A 1 1 5.100 D 135 42 15006 1 L L 1 2 5.400 D 630 240 14005 1 R A 4.700 D 607 1 R A 1 1 4.700 D 80
11 1 R A 1 1 5.100 2:1 456 160 900
Page 58 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Sizaire-Berwick1A SPA2A SPA6A SPA
SperryJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static Motors
SterlingD-4 SturtevantD-6 Sturtevant5 Sturtevant
5A Type 8 Sturtevant
5A Sturtevant5A 4 1/2 Sturtevant
Dyak SunbeamAmazon I SunbeamGhurka Sunbeam
Cossack SunbeamCossack III SunbeamCrusader SunbeamNubian SunbeamArab I SunbeamArab I AustinArab II SunbeamAfridi Sunbeam
12 SunbeamManitou SunbeamMaori IV SunbeamMatabele SunbeamMohawk Sunbeam
Sikh SunbeamViking SunbeamZulu Sunbeam
Thomas8 Thomas
88 Thomas890 Thomas-MorseV12 Tosi
UnionVan Blerck
Type HS 34 VNVWalker
WeinbergVertical Marine Winton
WisconsinWisconsin
WrightWrightWright
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
8 2 90 V L 1 S 6.000 R 550 350 200016 2 45 V L 1 1 5.000 D 1276 500 15008 1 L L 1 1 5.300 D 300 16006 1 L L 1 1 5.780 D 557.5 210/220 1600
10 1 R A D 372 145 125010 1 R A 300 160010 1 R A 1 1 4.690 D 483.5 250 1700
3004 1 L L 40 12006 1 L L 60 12008 2 90 V L 1.68 135 2000
8 2 90 V L 1 1 3:5 514 140 2000
8 2 90 V L 150 20008 2 90 V L 200 22506 1 L L 1 1 SOHC 2 D 399 100 12006 1 L L 2 2 5.100 7:11 630 160 2000
12 2 60 V L 1 1 Side valve 6.070 R 965 240 200012 2 60 V L 2 2 OHC 5.000 1:2 1040 320 200012 2 60 V L 2 2 OHC 350 20008 2 90 V L 1 1 Side valve 5.660 1:2 626 150 21008 2 60 V L 2 2 OHC 5.660 1:2 570 155 21008 2 90 V L 1 2 OHC 5.300 3:5 510 235 20008 2 90 V L 2 1 OHC 5.300 3:5 510 235 20008 2 90 V L 1 2 OHC 5.300 D
12 2 60 V L 2 2 OHC 5.260 1:2 793 200 200012 2 60 V L 2 2 DOHC 5.000 1:2 1058 350 200012 2 60 V L 2 2 DOHC 4.500 7:11 845 300 200012 2 60 V L 2 2 OHC 5.600 6:10 890 275 200012 2 60 V L 2 2 DOHC 4.500 1:1.63 985 400 200012 2 60 V L 1 1 Side valve 4 6.070 1:2 949 220 195012 2 60 V L 3 3 OHV 4 5.000 9.2:14 1952 850 140018 3 60 W L 2 2 5.000 1:2 1600 450 18008 2 60 V L 2 2 Side valve 5.000 R 658 160 2000
1008 2 90 V L 1358 2 90 V L 1508 2 90 V L 1 1 1512:2200 590 250 2200
12 2 60 V L 1 1 5.500 D 1212 450 16006 1 L L 1 1 5.450 D 485 120/125/130 1350
12 3 Y L D 595 170 11008 2 R L 1 1 D9 1 R A 350
6 1 L L 1 1 4.545 D 600 140 130012 2 V L 1 1 4.545 D 280 1300
8 2 90 V L 1808 2 90 V L 200
Page 59 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Wright
A WrightB Wright
C-1 WrightD-1 WrightD-1 WrightD-2 Wright
E Wright
E-2 WrightE-3 WrightE-4 Wright
E-4A WrightF Wright
Gale Wright
H WrightH Pierce-Arrow
H-2 WrightH-3 Wright
I WrightJ-1 WrightJ-2 WrightJ-3 WrightJ-4 Wright
J-4A WrightJ-4B WrightJ-5 Wright
J-5 WrightJ-6-5 WrightJ-6-7 WrightJ-6-9 Wright
K WrightK-2 WrightM Wright
P-1 WrightP-2 WrightP-2 WrightR-1 WrightR-1 WrightR-1 WrightR-1 WrightR-2 Wright
Simoon WrightT Wright
T-2 WrightT-2B Wright
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
8 2 90 V L 220
8 2 90 V L 1 1 4.720 D 467.5 150 14504 1 90 V L 1 1 4.720 D 75 14508 2 90 V L 1 1 200 20008 2 90 V L 200 20006 1 L L 400 14008 2 90 V L
8 2 90 V L 1 1 5.330 D 467.5 180 1800
8 2 90 V L 1908 2 90 V L 1808 2 90 V L 1808 2 90 V L 6.5008 2 90 V L 1803 1 R A 60
8 2 90 V L 1 1 5.330 D 632 300/320 18008 2 90 V L 3008 2 90 V L 3508 2 90 V L 4008 2 90 V L 1 1 4.720 D 467.5 150 14509 1 R A 2009 1 R A 2009 1 R A 2009 1 R A 2009 1 R A9 1 R A9 1 R A 190
9 1 R A 2205 1 R A 145/1757 1 R A 2459 1 R A 3008 2 90 V L 3308 2 90 V L 3308 2 90 V L 1 1 5.360 D 623 300 18009 1 R A 4509 1 R A D 4359 1 R A 29 1 R A 1 1 5.400 D 350 16509 1 R A 1 1 D 3509 1 R A 1 1 D 3509 1 R A 1 1 D 3509 1 R A 4009 1 R A 350
12 2 60 V L 50012 2 60 V L 525/575/65012 2 60 V L 650
Page 60 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
T-3 WrightT-3A WrightT-3B WrightT-4 Wright4 Wright Brothers4 Wright Brothers6 Wright Brothers
6-60 Wright Brothers
Note: Early types above with no aircraft listed and source
Army-Navy Designation System 1924-Present
Double OpposedXH-1850-2 Fairchild-Ranger
H-2240 P&WXH-2470-1 LycomingH-2470-2H-2470-3
XH-2470-4H-2470-5H-2470-7H-2600-1 P&W
XH-2600-3H-2600-3
XH-2600-5H-2600-5
XH-2860-1 ContinentalH-3130-1 P&WH-3730 P&W
XH-4070-1 MenascoXH-4940 LycomingH-9350-1 Studebaker
Inverted VXV-715-2 NAFV-770-1 RangerV-770-2V-770-3
XV-770-4V-770-5
XV-770-6V-770-6
XV-770-7V-770-7V-770-8
XV-770-9V-770-9
V-770-10V-770-11V-770-13V-770-15
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
12 2 60 V L 540/575/585/78012 2 60 V L 64012 2 60 V L 57512 2 V L 6754 1 L L 254 1 L L 306 1 L L 506 1 L L 60
24 4 2*150V A 1735 1500 350024 4 L 1800e24 4 L 2300
2300220023002300
24 4 L 2200
2000
200024 4 L24 4 L 265024 4 L 3000 est24 4 L 340048 4 L 4800 est24 4 L 5000
12 2 V L 7.500 3.2 500 350012 2 60 IV A 420
520550575600520520520600575575
520520520
Page 61 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-770-17SGV-770C-1
SGV-770XV-920 Ranger
XIV-1430-1 ContinentalXIV-1430-3XIV-1430-5
I-1430-7I-1430-9
I-1430-11XIV-1430-13XIV-1430-15XIV-1430-17XIV-1430-19
I-1430-21I-1430-23I-1430-25IV-1440 Continental
XIV-2040-1 MenascoXIV-2220-1 ChryslerXI-2220-1XI-2220-3XI-2220-5XI-2220-7XI-2220-9
XI-2220-11
InlineYL-330-1 MartinYL-365-1 MenascoL-365-1 Menasco
XL-365-2L-365-3L-375-1 DeHavillandL-390 RangerL-410 RangerL-410L-410
L-440-1 RangerL-440-2L-440-3L-440-5L-440-7L-440-9
L-440-11XL-510-1 Miller
L-825 Liberty
Opposed PistonO-15-1 RighterO-15-1 HerkimerO-15-3 Righter
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
575350
525/55012 2 60 IV A12 2 60 IV L 2 2 OHC 6.500 0.385 1600 3200
160016001600160016001600160016001600155016001700
12 2 L12 2 60 IV L 200016 2 60 IV L 6.500 2.457 2000
6.500 2.457 20006.500 2.457 19506.500 2.457 20506.500 2.5 20506.500 2.457 25006.250 2.457 2500
4 1 A 954 1 A 125
125150125
4 1 A 1326 1 A 1506 1 A 165
175175
6 1 A 175200220200200175190
8 1 L 7206 1 L
2 2 A 66
8.25
Page 62 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-15-3 McCullochO-15-5O-15-7
XO-40-1 Muncie GearO-45-1 RighterO-45-1 KiekhaeferO-45-1 MenascoO-45-3 Kiekhaefer
O-45-35YO-65-2 NelsonYO-90-1 McCullochO-90-1 McCullochO-90-2O-90-4
YO-95-2 PorscheYO-95-4YO-95-6YO-95-8
O-100-1 McCullochO-100-2O-100-3 Northrop
YO-100-4O-145-B Lycoming
O-145-B1 LycomingO-145-B2 Lycoming
GO-145-C2 LycomingO-150 Franklin
O-150-2 McCullochO-150-4 McCulloch
O-150-4A McCullochO-170-1 ContinentalO-170-2
YO-170-3
O-170-3O-170-5O-170-7O-175-1 FranklinO-180-1 FranklinO-190-1 Continental
YO-200-1O-200-1 FranklinO-200-3
XO-200-5O-200-5O-200-7O-200-9O-200-A ContinentalO-205-1 ContinentalO-235-1 LycomingO-235-2
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
8.25
2 2 A 202 2 A 20
3535
4 2 A 454 2 A 604 2 A 60
61 41004 2 A 62
867272 4500
4 2 A 729075
4 2 A 65656575
4 2 A 406 2 A 1106 2 A 120/1256 2 A 1204 2 A 7.500 D 80 2700
D 656.300 D 65 2300
6.300 D 65 23006.300 D 65 23006.300 D 75 2675
4 2 A 654 2 A 804 2 A 85
4 2 A 9090
1001029090
4 2 A 72/1004 2 A 904 2 A 100
100
Page 63 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
IO-235-L2CO-255 Continental
O-290-1 LycomingO-290-3
XO-290-5O-290-7O-290-9
O-290-11O-290-D
O-290-D2O-300-1 Franklin
XO-300-2O-300-3
XO-300-4O-300-5O-300-7
XO-300-9O-300-9
YO-300-11O-300-11O-300-DO-315 Continental
GO-315O-320-E2D Lycoming
O-335-1 FranklinO-335-2O-335-3O-335-4
YO-335-5O-335-5
O-335-5AO-335-5BYO-335-6O-335-6
O-335-6B6VS-O-335-
O-350 FranklinO-350-1 LycomingIO-360-A ContinentalIO-360-C ContinentalIO-360-D Continental
O-360-A2A LycomingIO-360-BIG6 LycomingIO-360-M1A Lycoming
IMO-360-B1B LycomingHIO-360-A1A LycomingHIO-360-B1A LycomingTIO-360-A3B6 Lycoming
TIO-360C LycomingVO-360-A1A Lycoming
XO-405-1 FranklinO-405-2
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1126 2 A 1004 2 A 125
130125
130/135130125
1356 2 A 125
150
160175
160
150145
4 2 A 1500.688 175
4 2 A 7.000 1506 2 A 175/178
178/200178
200/220
200
200
2256 2 A6 2 A6 2 A 210
210210180180
4 2 A 8.500 180225
4 2 A 180180200210180
6 2 A 200225
Page 64 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XO-405-3XO-405-5O-405-5
XO-405-7XO-405-9O-405-9
XO-405-11XO-425-1 FranklinO-425-1O-425-2
XO-425-3XO-425-5O-425-5O-425-7O-425-9
XO-425-11O-425-13XO-435-1 LycomingO-435-1
XO-435-2O-435-2
XO-435-3XO-435-4O-435-4
XO-435-5O-435-5O-435-6
O-435-6AXO-435-7O-435-7
XO-435-9O-435-9
O-435-11O-435-12O-435-13O-435-15O-435-17O-435-19O-435-21O-435-23
O-435-23AO-435-23BO-435-23CO-435-25
O-435-25AO-435-A2O-435-C
GO-435-B1A6GO-435-C2
GO-435-C2B1GO-435-C2B2-G
TVO-435-25
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
220
230/250235235245
6 2 A 245245285250245245
245
2856 2 A 190
185
185220
235
225
260212225
210190
185
260
270240
320
260260260
Page 65 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
TVO-435-D1BVO-435-
VO-435-21VO-435-23BVO-435-B1B
XO-470-1 ContinentalO-470-2
XO-470-3O-470-3O-470-4
XO-470-5O-470-7
O-470-7AO-470-7BXO-470-9O-470-11
O-470-11AO-470-11BO-470-13
O-470-13AO-470-13BO-470-15O-470-LO-470-M
FSO-470-AIO-470-DIO-470-LO-480-1 Lycoming
O-480-1AO-480-1BO-480-3
O-480-3AGO-480-B
GO-480-CSC6GO-480-F6
GO-480-G1D6GO-480-G2D6
IGSO-480-A1A6IO-520 Continental
IO-520-BIO-520-C
TSIO-520-CIO-520-DGIO-520
GTSIO-520GTSIO-520-M
O-525-1 ContinentalXO-540-1 FranklinXO-540-3O-540-5
XO-540-7O-540-9 Lycoming
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
270250240250260
6 2 A 250250267225225275205205
275213
225
190230240270260260
6 2 A 270
320
270340275295295270
6 2 A285280
300285285
6 2 A 270 30008 2 A 300
330330
300/3206 2 A 305
Page 66 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-540-9A LycomingO-540-A1AO-540-A2B
O-540-A-3D5AEIO-540-D4A5IGSO-540-B1A
IO-540-GIO-540-K1B5
IO-540-W3A5DVO-540-A1BGIO-550-A ContinentalXO-580-1 LycomingO-580-3
SO-580-A1ASO-580-BSO-580-D
IO-720-A1B LycomingXO-805-1 FranklinXO-805-2XO-805-3O-805-5
O-1230-1 LycomingO-1430-1 Continental
XO-1430-3
RadialXR-250-1 General MotorsR-250-3
YR-265-1 LeBlondR-265-1 Ken RoyceR-270-1 Lambert
YR-370-1 KinnerR-370-1 KinnerR-370-1 Ken RoyceR-420-1 WarnerR-440-1 KinnerR-440-3R-500-1 WarnerR-500-2R-500-3R-500-4R-500-5R-500-6R-500-7R-500-9R-540-1 WrightR-540-3 WrightYGR-540 WrightR-540-1 KinnerR-540-3 Kinner
YR-545-1 ContinentalR-545-1
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
250250
260295290300235305
6 2 A 0.667 3508 2 A 400
400400400
8 2 A 40012 2 A 456
500500
12 2 L 120012 2 L 1150
1500
8 2 A 200200
5 1 A5 1 A 905 1 A 705 1 A 1 1 100
1007 1 A 1207 1 A 1 1 1105 1 A 1 1 132
1327 1 A 1 1 165
D 145 2050175165165145165175
5 1 A 1 1 165165165
5 1 A 1 1 160160
7 1 A 165165
Page 67 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-550-1R-550-1 WarnerR-550-3R-600-1 CurtissR-600
YR-670R-670-1 ContinentalR-670-2R-670-3R-670-4R-670-5R-670-6
R-670-6AR-670-7R-670-8R-670-9
R-670-11R-670-11AR-670-14R-670-98Y1R-670AYR-680-1 LycomingR-680-1R-680-2R-680-3R-680-4R-680-5R-680-6R-680-7R-680-8
R-680-9XR-680-10R-680-11R-680-12R-680-13R-680-14R-680-15R-680-16R-680-17R-680-B5R-680-B6R-680-D1R-680-D5R-680-E1YR-720 Kinner
Y1R-720R-720-1
YR-755-1 JacobsR-755-1
YR-755-3R-755-3
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
7 1 A 1 1 200200
6 2 A 1 1 175170
7 1 A 1 1210220
NA-R6D 220200220220284
220NA-R6G 220NA-R6G 220
210
9 1 A 1 1 180200
200
215225220220
295320220
280
220215220240245260260290
5 1 A 1 1 170
2107 1 A 1 1 225
225
225
Page 68 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
YR-755-5R-755-7R-755-9
R-755-11R-755-A2R-760-1 WrightR-760-2R-760-2 NAFR-760-4
XR-760-6R-760-6R-760-8R-760-8 NAF
R-760-92R-760-94R-760-96 NAFR-760-E
R-760-E1R-760-E2R-790-1 WrightR-790-3R-790-5R-790-8R-790-AR-830-1 JacobsR-915-1 JacobsR-915-3R-915-5R-915-7
XR-918-2 GuibersonR-975-CR-975-E
R-975-E3R-975-1 WrightR-975-3R-975-5R-975-7
YR-975-9R-975-9
R-975-11R-975-11 ContinentalR-975-11 NAFR-975-13 Continental
XR-975-15 ContinentalXR-975-17 ContinentalR-975-19 ContinentalR-975-20R-975-22R-975-24R-975-26R-975-28R-975-28 NAF
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
225225245300
7 1 A 1 1 225235235
320240220220
240240250285350
9 1 A 1 1 200200200220220
7 1 A 1 1 2857 1 A 1 1 300/330
330330330
9 1 A 253420435
420/4409 1 A 1 1 300
365440400
400/420440440440450525525550300420420420425 2200425
Page 69 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-975-30 NAFR-975-32R-975-34R-975-36R-975-38R-975-40R-975-42R-975-44R-975-46
R-975-46A ContinentalDR-980 PackardR-985-AYR-985 P&W
R-985-1 P&WR-985-2R-985-3R-985-4R-985-5R-985-7
YR-985-9R-985-9
R-985-11R-985-11AYR-985-13R-985-13
XR-985-15R-985-17R-985-19R-985-21R-985-23R-985-25R-985-27R-985-29R-985-31R-985-33R-985-34R-985-35R-985-36R-985-37R-985-38R-985-39
R-985-39AR-985-40R-985-45R-985-46R-985-48R-985-50
R-985-AN-1R-985-AN-1 Jacobs
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
420
525
525
5509 1 A 225
4009 1 A 1 1 375
300
420450350335
350400400
450600450450440450450450440450450
450
450400450450335450400450450
450450
Page 70 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-985-AN-1AR-985-AN-2
R-985-AN-3R-985-AN-3 Jacobs
R-985-AN-3AR-985-AN-4R-985-AN-5R-985-AN-6R-985-AN-6 Jacobs
R-985-AN-6BR-985-AN-6B JacobsR-985-AN-7R-985-AN-8R-985-AN-9
R-985-AN-10R-985-AN-11R-985-AN-12
R-985-AN-12BR-985-AN-13R-985-AN-14
R-985-AN-14BR-985-AN-14B Jacobs
R-985-B5R-985-SBR-1044-2 KinnerR-1300-1 Wright
R-1300-1A WrightR-1300-1A KaiserR-1300-1A WillysR-1300-1BXR-1300-2 WrightR-1300-2 WrightR-1300-2 LycomingR-1300-2 Willys
R-1300-2A WrightR-1300-2BR-1300-3 WrightR-1300-3 LycomingR-1300-3 Willys
R-1300-3AR-1300-3BR-1300-3CR-1300-3DR-1300-4 LycomingR-1300-4 Willys
R-1300-4AR-1300 Kaiser-Frazer
R-1340-A P&W
R-1340-B
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
450450
400/450450450450450450450450450450450
450
450450
450450450450450
7 1 A 1 1 3407 1 A 1 1 0.5625:1 800 2600
0.5625:1 800 2600
0.5625:1 2600
D 800 2600
D 800 2600D 800 2600D 700
DDDD 800
0.5625:1 800 2600
0.5625:1 800 2600
9 1 A 1 1 432
450
Page 71 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-CR-1340-C1R-1340-D
R-1340-D1XGRS-1340EY1SR-1340GY1SR-1340H
R-1340-1 P&WR-1340-2R-1340-3R-1340-4R-1340-5R-1340-6
R-1340-7R-1340-8
R-1340-9R-1340-10R-1340-11R-1340-12R-1340-13R-1340-14R-1340-15R-1340-16
R-1340-16MR-1340-17R-1340-18R-1340-19R-1340-20R-1340-21R-1340-22R-1340-23R-1340-24R-1340-25R-1340-26R-1340-27R-1340-28R-1340-29
XR-1340-30YR-1340-31R-1340-31R-1340-32R-1340-33R-1340-34R-1340-35R-1340-36R-1340-37R-1340-38R-1340-39
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
450420
400/500450/550
500
410375450450450500
450450
450425/500450/525
550375550550
400/550550500600500
500600540550600550
500/570
550550
600575600
575550600450550
Page 72 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-40R-1340-41R-1340-42
XR-1340-43R-1340-43R-1340-44R-1340-45R-1340-46R-1340-46R-1340-47R-1340-48R-1340-48
R-1340-48AR-1340-49R-1340-50R-1340-51R-1340-52R-1340-53
XR-1340-55R-1340-55R-1340-57R-1340-59R-1340-59R-1340-61R-1340-80R-1340-88R-1340-96
R-1340-AN-1 P&WR-1340-AN-1 ContinentalR-1340-AN-1 JacobsR-1340-AN-2R-1340-AN-3R-1340-AN-5R-1340-AN-7R-1340-S3H1
R-1340-S3H1-GR-1454 CurtissR-1454 CurtissR-1454 Curtiss
XR-1510-1 WrightYR-1510-1XR-1510-8
XR-1510-12R-1510-26R-1510-28R-1510-92
XR-1510-94R-1510-98XR-1530C JacobsXR-1530D JacobsR-1535-1 P&W
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
600
550600
600550550600450600
600
600600600
600550600600
425450450
600600600600600600600600600
9 1 A 405 1650
14 2 A 1 1 725
650700625625625600600
14 2 A 900e14 2 A 1140e14 2 A 1 1 700
Page 73 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1535-2R-1535-02YR-1535-3R-1535-3
YR-1535-5R-1535-5
YR-1535-7R-1535-7R-1535-9
R-1535-11R-1535-13
XR-1535-15XR-1535-44R-1535-62
XR-1535-64R-1535-66
XR-1535-70R-1535-72R-1535-78R-1535-80R-1535-82R-1535-84R-1535-86R-1535-88R-1535-90
XR-1535-92R-1535-94R-1535-96R-1535-98
R-1535-102XH-1640-1 CurtissR-1640-1 Curtiss
YR-1670-1R-1670-1 Wright
XR-1670-2R-1670-3
XR-1670-5YR-1670-5R-1670-5
XR-1670-7R-1670-7R-1690-1 P&WR-1690-3R-1690-5R-1690-7R-1690-9
YR-1690-11R-1690-11R-1690-13R-1690-15R-1690-17R-1690-19
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
825825
700
700
725725750835750625700700750
700750700750700750750
875825825750825
12 2 A 60012 2 A 600
14 2 A 775900775
775/900
735
8009 1 A 525
525414525625
775625700850725
Page 74 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1690-21R-1690-22R-1690-23R-1690-24R-1690-25R-1690-28R-1690-32R-1690-38R-1690-40R-1690-42R-1690-44R-1690-52R-1690-54R-1690-AR-1690-CR-1690-E
R-1690-S2CGR-1690
XR-1740-2 ContinentalR-1750-1 WrightR-1750-3R-1750-AR-1750-D
GR-1750-DGR-1750
G1R-1750XR-1800 Wright
YR-1820-1R-1820-1 WrightR-1820-2
YR-1820-3R-1820-3
XR-1820-4R-1820-04R-1820-5R-1820-6R-1820-7
R-1820-08R-1820-9
R-1820-10R-1820-11R-1820-12R-1820-13
XR-1820-14R-1820-15R-1820-16R-1820-17R-1820-18R-1820-19R-1820-20
YR-1820-21R-1820-21
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
760525800525875525525600600600625750850
600750875525
14 2 A Sleeve Sleeve 5.500 8759 1 A 525
525525525535575525
35 5 L
9 1 A 575
620900
675/700575
620/575840650770600
700/710670
730/700
675
675750
670
Page 75 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-1820-22R-1820-22R-1820-23R-1820-24
YR-1820-25
R-1820-25R-1820-26
XR-1820-27R-1820-27R-1820-28
XR-1820-29R-1820-29R-1820-30R-1820-31
XR-1820-32R-1820-32
YR-1820-33R-1820-33R-1820-33R-1820-34R-1820-35R-1820-36
YR-1820-37R-1820-37R-1820-38
XR-1820-39R-1820-39
XR-1820-40R-1820-40
R-1820-40BR-1820-40CXR-1820-41YR-1820-41R-1820-41
XR-1820-42R-1820-43R-1820-44
YR-1820-45R-1820-45R-1820-46R-1820-47
XR-1820-48R-1820-48R-1820-49R-1820-50R-1820-51R-1820-52R-1820-53R-1820-54R-1820-55
XR-1820-56
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
950950
670/650
750620
670750
800850675
10001000
775740950750850
690/710950850
930/1000120012001200
940/850120010001000800930
930/600
1200975/1060
8501000100010001050975
1350
Page 76 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-56R-1820-56AR-1820-56SR-1820-56W
R-1820-56WAR-1820-57R-1820-58R-1820-59R-1820-60R-1820-61R-1820-62
R-1820-62AR-1820-63R-1820-64R-1820-65R-1820-65 StudebakerR-1820-66R-1820-67R-1820-68R-1820-69
R-1820-70WR-1820-71
R-1820-72AR-1820-72W
R-1820-72WAR-1820-73
R-1820-74WR-1820-75R-1820-76
R-1820-76AR-1820-76A LycomingR-1820-76BR-1820-76B LycomingR-1820-76CR-1820-76DR-1820-77R-1820-78R-1820-78R-1820-79R-1820-80R-1820-80R-1820-80R-1820-80 Lycoming
R-1820-80AR-1820-80BR-1820-80CR-1820-81R-1820-82R-1820-82 Lycoming
R-1820-82AR-1820-82BR-1820-82C
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1250/135013501425135013501060
12001200875
135013501200575
1000100013501200
120013501200
1350142512001425785
14251425
1425
875700
11001200700750
1475/15351475/1535
12001525
1525
Page 77 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-82DR-1820-82WA
R-1820-83R-1820-84R-1820-84
R-1820-84A LycomingR-1820-84BR-1820-84B LycomingR-1820-84CR-1820-84DR-1820-85R-1820-86R-1820-86 Lycoming
R-1820-86AR-1820-86BR-1820-87
R-1820-87CR-1820-88R-1820-88R-1820-89R-1820-90R-1820-91R-1820-92R-1820-93R-1820-94R-1820-95R-1820-96
R-1820-97
R-1820-97 StudebakerR-1820-98R-1820-99
R-1820-100R-1820-101R-1820-102R-1820-103R-1820-103 Lycoming
R-1820-103AR-1820 Lycoming
R-1820-AR-1820-ER-1820-F
Y1R-1820-FSR-1820-F2R-1820-F51
SR-1820-F52R-1820-F62
R-1820-G102GR-1820-G105A
R-1820-G133R-1820-G202A
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
15251100740
152515251525
152515251100620
14251425
1200
75015251100750
1200
120013501200
1200
1200
1200
1425750
1250/1425
575525/575/645
650/750630575875775760900
110010001050
Page 78 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
GR-1820-G205AR-1820-HDXR-1828-2 KinnerXR-1830-1 P&WYR-1830-1R-1830-1 P&WR-1830-2R-1830-3R-1830-4R-1830-5R-1830-6R-1830-7R-1830-8
XR-1830-9R-1830-9
R-1830-10XR-1830-11R-1830-11R-1830-12
XR-1830-13YR-1830-13R-1830-13R-1830-14
XR-1830-15R-1830-15R-1830-16R-1830-17R-1830-18R-1830-19R-1830-20R-1830-21R-1830-22R-1830-23R-1830-24R-1830-25R-1830-26R-1830-27R-1830-28R-1830-29R-1830-30R-1830-31R-1830-32R-1830-33
R-1830-34AR-1830-35R-1830-36R-1830-37R-1830-38
XR-1830-39R-1830-39R-1830-40R-1830-41
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
12001425
14 2 A
14 2 A 800
800
850
950
950
1000
1050
1000
1200
1200
1200
1100
1100
1050
1050
1050
120012001200
1200
10501050
1200
Page 79 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-42
R-1830-43R-1830-43 BuickR-1830-43 Chevrolet
R-1830-43AR-1830-43A BuickR-1830-43A ChevroletR-1830-44R-1830-45R-1830-45 BuickR-1830-45 ChevroletR-1830-46R-1830-47R-1830-48R-1830-49R-1830-50R-1830-51R-1830-52R-1830-53
XR-1830-54R-1830-55R-1830-56R-1830-57R-1830-57 ChevroletR-1830-58R-1830-59
XR-1830-60R-1830-61R-1830-62R-1830-63R-1830-64
R-1830-65 BuickR-1830-65A BuickR-1830-65A ChevroletXR-1830-66R-1830-66R-1830-67 Chevrolet
XR-1830-68R-1830-69
XR-1830-70R-1830-70R-1830-71
XR-1830-72R-1830-72R-1830-73
XR-1830-74R-1830-75 Buick
XR-1830-76R-1830-76R-1830-78
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1200120012001200
105010501050
1200
1200
1200
1200800
1200
12001200825
1200800
1200700
1200900
120012001200
1050120010501250
120010501050120010501350120012001200
Page 80 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-80R-1830-82
R-1830-82AR-1830-84
R-1830-84AR-1830-86R-1830-88
R-1830-88AR-1830-90
R-1830-90BR-1830-90CR-1830-90C BuickR-1830-90D
R-1830-92R-1830-92AR-1830-94R-1830-96R-1830-98R-1860-1 P&WR-1860-3R-1860-5R-1860-7R-1860-9
R-1860-11R-1860-13
YR-1860-15R-1860-15R-1860-17R-1860-18R-1860-19R-1860-42R-1860-48R-1860-52R-1860-56R-1860-BGR-1860
XR-2000-1 P&WXR-2000-2R-2000-3R-2000-4
R-2000-4AR-2000-5R-2000-6
R-2000-6AR-2000-7
R-2000-7M2R-2000-9R-2000-9 Buick
R-2000-9A
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1200120012001050120012001200120012001200120012001200
12001200135013501350
9 1 A 575550575575575630575
650630
650
575575
14 2 A 1350135013501450
1350
13501450145014501450
Page 81 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2000-9BR-2000-11R-2000-13
R-2060 P&WH-2120 Wright
XR-2120 WrightR-2160-1 WrightR-2160-3R-2160-5R-2170 Wright
R-2180-1 P&WXR-2180-2R-2180-3R-2180-4R-2180-5R-2180-6R-2180-7R-2180-9
XR-2180-11XR-2270-1 P&WR-2600-1 Wright
XR-2600-2 WrightXR-2600-3 WrightR-2600-3 WrightR-2600-4 WrightR-2600-5 WrightR-2600-6 Wright
R-2600-6A WrightR-2600-7 Wright
XR-2600-8 Wright
R-2600-8 WrightR-2600-8A WrightR-2600-9 Wright
XR-2600-10 WrightR-2600-10 WrightR-2600-11 Wright
XR-2600-12 WrightR-2600-12 Wright
R-2600-13 WrightR-2600-14 WrightR-2600-15 WrightR-2600-16 WrightR-2600-17 Wright
R-2600-17A WrightR-2600-18 WrightR-2600-19 Wright
XR-2600-20 WrightR-2600-20 WrightR-2600-21 WrightR-2600-22 Wright
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
13501450
20 4 L 111612 2 L 100012 2 L 100042 6 L 2350
23502350
14 2 A14 2 A 1200
1400
1400
140014001650
14 2 A 87014 2 A 1500
150016001600120016001600160016001700
170017001700190017001600
1700
170018001800
17001750
1750
190016002100
Page 82 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2600-23 WrightR-2600-25 WrightR-2600-27 WrightR-2600-29 Wright
R-2600-29A WrightR-2600-31 WrightR-2600-33 WrightR-2600-35 Wright
R-2600-A71-3 WrightR-2600-A2A Wright
R-2600 StudebakerR-2600 P&W
R-2800-1 P&WXR-2800-2 P&WR-2800-3 P&W
XR-2800-4 P&WR-2800-5 P&WR-2800-5 Ford
XR-2800-6 P&WR-2800-7 P&WR-2800-8 P&WR-2800-8 Nash
R-2800-8W P&WR-2800-8W NashR-2800-9 P&W
R-2800-10 P&WR-2800-10 Nash
R-2800-10W P&WR-2800-10W NashR-2800-11 P&WR-2800-12 P&WR-2800-13 P&W
R-2800-14W P&W KCR-2800-15 P&W
XR-2800-16 P&WR-2800-16 P&W
XR-2800-17 P&WR-2800-18 P&W
R-2800-18W P&WR-2800-18WA P&W
R-2800-19 P&WR-2800-20 P&WR-2800-21 P&WR-2800-21 FordR-2800-22 P&WR-2800-22 P&W KC
R-2800-22W P&W KCXR-2800-23 P&WR-2800-23 P&W
XR-2800-24 P&WR-2800-24 P&W
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1600160016001700170017001700170016001500
18 2 A18 2 A 1800
20001800185018501850200018502000
2000
210020002000200020002000
10002110200020002000200021002100210020002000200020002100
210020002200
Page 83 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-2800-25 P&WR-2800-26 P&W
XR-2800-27 P&WR-2800-27 P&WR-2800-27 FordR-2800-28 P&W
XR-2800-29 P&WYR-2800-30W P&WR-2800-30W P&WR-2800-31 P&WR-2800-31 Ford
R-2800-32W P&WR-2800-32W P&WR-2800-33 P&WR-2800-34 P&W KC
R-2800-34A P&W KC
R-2800-34W P&W KCR-2800-34W4 P&W KCR-2800-34WA P&W KC
R-2800-35 P&WR-2800-36 P&W
R-2800-36W P&WR-2800-37 P&W
R-2800-38W P&WR-2800-39 P&WR-2800-40 P&W
R-2800-40W P&WR-2800-41 P&W
R-2800-42W P&WR-2800-43 FordR-2800-44 P&W
R-2800-44W P&WR-2800-45 P&WR-2800-46 P&W
R-2800-46W P&WR-2800-47 P&WR-2800-48 P&WR-2800-49 P&WR-2800-50 P&W
R-2800-50A P&WR-2800-51 Ford
R-2800-51M1 FordR-2800-52W P&WR-2800-52W Nash
R-2800-52WA P&WR-2800-53 P&WR-2800-54 P&WR-2800-55 P&WR-2800-57 P&WR-2800-57 P&W KCR-2800-57 Chevrolet
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
2000
200020002000
2000225022502000200028002800200021002100
2100
21002000
2100
1800210021002000
2000
23002000230023002000
2400/25002000190019002000
250025002500200019002100210021002100
Page 84 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2800-59 P&WR-2800-59 FordR-2800-61 P&WR-2800-63 P&WR-2800-63 FordR-2800-65 P&WR-2800-65 NashR-2800-67 P&WR-2800-69 P&WR-2800-71 FordR-2800-73 ChevroletR-2800-75 FordR-2800-77 ChevroletR-2800-79 FordR-2800-81 P&W KCR-2800-83 Chevrolet
R-2800-83A ChevroletR-2800-83W Chevrolet
R-2800-83WA ChevroletXR-2800-85 ChevroletR-2800-85 Chevrolet
R-2800-85A ChevroletR-2800-87 P&WR-2800-89 P&WR-2800-91 P&WR-2800-93 P&W
XR-2800-95 P&WR-2800-97 P&W
R-2800-99W P&WR-2800-99W NashR-2800-101 P&W
R-2800-103W P&WR-3350-1 WrightR-3350-2R-3350-3R-3350-4R-3350-5R-3350-6R-3350-7R-3350-8R-3350-9
R-3350-10R-3350-11R-3350-12
XR-3350-13R-3350-14
XR-3350-15XR-3350-16XR-3350-17R-3350-18
XR-3350-19
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
2000200021002000200020002000200020002000210020002100200021002100210021002300210021002100210021002100210021002400
25002500
250018 2 A 1 2 1800
1800200020002300
23002300230023002200
2200230022002300230022002200
Page 85 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-20R-3350-21
R-3350-21AR-3350-22R-3350-23R-3350-23 Dodge
R-3350-23AR-3350-23A DodgeR-3350-23BR-3350-24
R-3350-24WR-3350-24WA
R-3350-25R-3350-26
R-3350-26WR-3350-26WAR-3350-26WA ChevroletR-3350-26WBR-3350-26WB ChevroletR-3350-26WCR-3350-26WD
R-3350-27R-3350-28R-3350-29
YR-3350-30WR-3350-30W
R-3350-30WAR-3350-30WB
R-3350-31R-3350-32
R-3350-32WR-3350-32WA
R-3350-33R-3350-34R-3350-35
R-3350-35AR-3350-36
R-3350-36WR-3350-36WA
R-3350-37R-3350-37AR-3350-38R-3350-39R-3350-40R-3350-41R-3350-42
XR-3350-43R-3350-44R-3350-45R-3350-47R-3350-49R-3350-51
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
22002200
220022002200220022002500250024002200270027002700
2700
270027002300
2200
32503250/3500
32502300
3500/370034502200
3250/350022002200
350034002200220034002200
220034002250
2300280028002200
Page 86 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-53R-3350-55R-3350-57R-3350-57 Dodge
R-3350-57MR-3350-57AR-3350-57A Dodge
R-3350-57AMR-3350-59
R-3350-59AR-3350-61R-3350-63R-3350-65
XR-3350-65AR-3350-67R-3350-69R-3350-71R-3350-73
YR-3350-75R-3350-75R-3350-77R-3350-79R-3350-81R-3350-83R-3350-85R-3350-85 ChevroletR-3350-87R-3350-89
R-3350-89AR-3350-89BR-3350-91
R-3350-91AR-3350-93
R-3350-93AR-3350-93BR-3350-95W
R-3350-999TC18-EA2R-3350-749C18-BD1
R-3350-BDXR-3640-1 WrightXR-4090-1 WrightR-4090-3 WrightH-4240 Wright
XR-4360-1 P&WXR-4360-2 P&WR-4360-2
R-4360-2AR-4360-3
XR-4360-4YR-4360-4
R-4360-4
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
2200220022002200
22002200
2200220022002200250025002500250028002500250025003250
35003500
35003500
3250
3650
370025002500
18 2 A22 2 A 3000
300024 4 L 2000e
28 4 A 300030003000300030003000
3000
Page 87 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-4360-4AR-4360-4TR-4360-4W
R-4360-4WTR-4360-5R-4360-6
XR-4360-7XR-4360-8R-4360-8AXR-4360-9R-4360-9T
XR-4360-10XR-4360-11R-4360-12
R-4360-12AXR-4360-13R-4360-14
XR-4360-15R-4360-16R-4360-17R-4360-18R-4360-19R-4360-20
R-4360-20WR-4360-20A
R-4360-20ATR-4360-20WAR-4360-20B
R-4360-20WBR-4360-20C
R-4360-20WCR-4360-20WDR-4360-20TR-4360-21
R-4360-22WR-4360-23R-4360-24R-4360-25
XR-4360-27R-4360-27
XR-4360-29R-4360-31
XR-4360-33R-4360-35
R-4360-35AR-4360-35BR-4360-35CXR-4360-37XR-4360-39XR-4360-41R-4360-41
R-4360-41A
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
300030003000
30003000300030003000300030003000300030003000
3000/345030003000
30003000
3000/34503250
3500
35003500350035003500
325035003250
0.375 30003250
3000300030003000350035003500350030003800350035003500
Page 88 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-4360-43R-4360-43R-4360-45R-4360-47R-4360-49
R-4360-49AXR-4360-51R-4360-51R-4360-53R-4360-53 FordR-4360-55R-4360-57R-4360-59
R-4360-59AR-4360-59A FordR-4360-59BR-4360-59B FordR-4360-61R-4360-61 FordR-4360-63R-4360-63 Ford
R-4360-63AR-4360-63A FordR-4360-63BR-4360-65
R-4360-TSB1-GXR-7755-1 LycomingXR-7755-3 LycomingXR-7755-5 Lycoming
Rotating Combustion Chamber (Wankel)YRC-180-2 Curtiss-Wright
Two-Row Inline (V)V-032 Andover
V-032DXV-105-2 KiekhaeferV-105-2V-720 Wright
V-1008 ContinentalV-1150-1 CurtissV-1150-3V-1150-5V-1150-7V-1150-9V-1237 PackardV-1400 CurtissV-1400 CurtissV-1410 Engineering Division
GV-1410 AllisonV-1410-1 Allison
XV-1430-1 Continental
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
4300430030003000325032504300430038003800
38003800380038003800
3800380038003800
300036 4 L 5000
50005000
2 A 275 6000
2 1 V 7.800 10
4 2 V A 100100
8 2 90 V A12 2 L12 2 60 V L 5.300 435 2300
5.300 435 23005.300 435 23005.300 435 23005.300 435 2300
12 2 L12 2 60 V L 500
61012 2 A 420 1900
5.300 420D 420
12 2 60 V L 1600
Page 89 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1430-1 ContinentalV-1430-3 ContinentalV-1440 CurtissV-1440 Continental
V-1460-1 Curtiss-WrightV-1460-3 Curtiss-WrightV-1500 CurtissV-1510 CurtissV-1550 Curtiss
GV-1550 CurtissV-1560-1 Wright
V-1570-1 CurtissV-1570-3V-1570-5V-1570-7V-1570-9
V-1570-11V-1570-13V-1570-15V-1570-17V-1570-19V-1570-21
V-1570-23
V-1570-25V-1570-27V-1570-29V-1570-31V-1570-33V-1570-35V-1570-37V-1570-39V-1570-41V-1570-43V-1570-45V-1570-47V-1570-49V-1570-51V-1570-53V-1570-54V-1570-55V-1570-57V-1570-59V-1570-61SV-1570
V-1650-1 AllisonV-1650-2 AllisonV-1650-3 AllisonV-1650-5 Allison
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
16001700
12 2 L 56512 2 L12 2 60 V A 525
48012 2 L 68512 2 L12 2 60 V L D 725 708 260012 2 60 V L 2 830 575 250012 2 L 600
12 2 60 V L 600600600600600600600500600600600
600
600600600600600600600600600600600600600600600600675600600700600
12 2 45 V L 420400420420
Page 90 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1650-7 AllisonV-1650-9 Allison
V-1650-11 AllisonV-1650-13 AllisonV-1650-1 PackardV-1650-3 PackardV-1650-3 Continental
XV-1650-5 PackardV-1650-7 PackardV-1650-7 ContinentalV-1650-9 PackardV-1650-9 Continental
V-1650-9A PackardV-1650-11 PackardV-1650-13 PackardV-1650-15 PackardV-1650-17 PackardV-1650-17 ContinentalV-1650-19 Packard
XV-1650-21 PackardXV-1650-23 PackardV-1650-23 PackardV-1650-25 Packard
V-1650-209 PackardV-1650 Ford
XV-1650 FordXV-1650 Ford
GV-1710-A AllisonXV-1710-1 AllisonXV-1710-2 AllisonXV-1710-3 AllisonYV-1710-3 AllisonXV-1710-4 AllisonYV-1710-4 AllisonXV-1710-5 AllisonYV-1710-5 AllisonXV-1710-6 AllisonV-1710-6 Allison
XV-1710-7 AllisonYV-1710-7 AllisonXV-1710-9 AllisonYV-1710-9 AllisonV-1710-11 Allison
YV-1710-13 AllisonXV-1710-15 AllisonXV-1710-17 AllisonV-1710-17 AllisonV-1710-19 AllisonV-1710-21 AllisonV-1710-23 AllisonV-1710-25 AllisonV-1710-27 Allison
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
420420420420
12 2 60 V L 2 2 130014901490149014901490149514951495
SD-400C2 150014901490159015901700
SD-400C2 14951520
1490/18601490/1860
165012 2 60 V L 2 212 2 60 V L 2 2 7.250 1800 360012 2 60 V L 2 2 7.250 1800 360012 2 60 V L 750
800650/750
10001000690690
1000
1150115010001000100010001150115011501150115011501150115011501150
Page 91 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-29 AllisonV-1710-31 AllisonV-1710-33 AllisonV-1710-35 AllisonV-1710-37 AllisonV-1710-39 AllisonV-1710-41 AllisonV-1710-43 AllisonV-1710-45 AllisonV-1710-47 AllisonV-1710-49 AllisonV-1710-51 AllisonV-1710-53 AllisonV-1710-55 AllisonV-1710-57 AllisonV-1710-59 AllisonV-1710-61 AllisonV-1710-63 AllisonV-1710-65 AllisonV-1710-67 Allison
XV-1710-69 AllisonXV-1710-71 AllisonV-1710-73 AllisonV-1710-75 AllisonV-1710-77 Allison
XV-1710-79 AllisonV-1710-81 Allison
V-1710-81A AllisonV-1710-83 AllisonV-1710-85 AllisonV-1710-87 AllisonV-1710-89 Allison
V-1710-89A AllisonV-1710-91 Allison
V-1710-91A AllisonV-1710-93 AllisonV-1710-95 AllisonV-1710-97 Allison
V-1710-97A AllisonV-1710-99 Allison
V-1710-99A AllisonV-1710-101 Allison
XV-1710-103 AllisonXV-1710-105 AllisonV-1710-107 AllisonV-1710-109 Allison
V-1710-109A AllisonXV-1710-111 AllisonV-1710-111 Allison
XV-1710-113 AllisonV-1710-113 AllisonV-1710-115 Allison
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
115011501040115010901150109011501325132513251325132513251325110011001325132511501325115011501425142511501200120012001200132514251425142514251325127517251725120012001325132514251425142514251500
1500/16001500
1500/16001200
Page 92 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-115A AllisonV-1710-117 Allison
XV-1710-119 AllisonV-1710-119 Allison
XV-1710-121 AllisonXV-1710-123 AllisonXV-1710-125 AllisonV-1710-125 AllisonV-1710-127 Allison
XV-1710-129 AllisonV-1710-129L AllisonV-1710-129R AllisonXV-1710-131 AllisonV-1710-131 Allison
XV-1710-133 AllisonXV-1710-135 AllisonV-1710-135 Allison
XV-1710-137 AllisonXV-1710-137L AllisonXV-1710-137R Allison
V-1710-139 AllisonV-1710-141 AllisonV-1710-143 AllisonV-1710-145 AllisonV-1710-147 AllisonV-1710-149 AllisonV-1710-C15 AllisonV-1710-E4 Allison
V-1800 Curtiss-WrightV-1950 Wright
XV-3420-1 AllisonV-3420-1 AllisonV-3420-2 AllisonV-3420-3 Allison
XV-3420-5 AllisonXV-3420-7 AllisonXV-3420-9 Allison
XV-3420-11 AllisonV-3420-11 Allison
XV-3420-13 AllisonV-3420-15 AllisonV-3420-17 Allison
XV-3420-19 AllisonXV-3420-21 AllisonXV-3420-23 AllisonXV-3420-25 AllisonXV-3420-27 AllisonV-3420-29 Allison
XV-3420-31 AllisonDV-6840 Allison
Three-Row Inline (W)
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
1200132515001500142514251700170015501675167516751600160015001200120017901790179015001500
SD-400D3 1600SD-400D3 1600
1600160011501150
12 2 L 80012 2 L 64524 4 Dual 60 V L 2300
20002300260026002300260026002600260026002600260026002600260026503000
48 4 2 x Dual 60 V L ~4200 est
Page 93 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
W-2779 Engineering Division
Four-Row Inline (X)X-1670 WrightX-2775 PackardX-3130 P&W
X-3420-1 AllisonX-3420-3 AllisonX-4240 WrightX-4520 AllisonX-5340 Engineering Division
UndesignatedC-10 Homelite
C-13A WaukeshaE-005 ?
N-1610 ?O-861-C ?
115-I Alfa-RomeoAirship Diesel Allison
U-250 AllisonAs.10C Argus
Cheetah IX Armstrong SiddeleyCheetah X Armstrong Siddeley
IV BMW132 BMW
Hercules BristolHercules BristolJupiter Bristol
Jupiter VIIF BristolMercury XII BristolMercury XX Bristol
Mercury XXX BristolPegasus XVIII Bristol
Perseus XII BristolCirrus II Cirrus
A50 ContinentalA65-7 ContinentalA65-8 ContinentalA75-9 ContinentalA-80 Continental
C-85-8FJ ContinentalC-90-8FJ ContinentalC-90-12 Continental
C-90-12F ContinentalC-145-2H Continental
E-185 ContinentalE-225 Continental
Hyper #1 ContinentalContinental
Hyper #2 ContinentalBR-1 CRM
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
18 3 L
24 4 L 1250 270024 4 A24 4 L 1600 e
1600 e24 4 L 2000 e24 4 L 120024 4 L 1500 e
1 1 A4 1 L L
6 1 L L 1 1 2006 1 L L 765
8 2 I L 1 1 5.900 2407 1 R A 1 1 6.350 D 3507 1 R A 1 1 6.350 D 3706 1 L L 2309 1 R A 800
14 2 R A 0 0 Sleeve 100014 2 R A 0 0 Sleeve 16709 1 R A 2 2 D 4509 1 R A 2 2 5.300 D 5009 1 R A 8909 1 R A 8709 1 R A 9509 1 R A 2 2 10009 1 R A 0 0 9054 1 L A 1 1 4.700 D 854 2 O A 504 2 O A 654 2 O A 654 2 O A 754 2 O A 804 2 O A 854 2 O A 904 2 O A 904 2 O A 906 2 O A 1456 2 O A 1856 2 O A 225 26501 1 L2 1 O L1 1 L
18 3 W L 2070
Page 94 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
RC 2-60 Curtiss-Wright440 Cuyuna
Gipsy I DeHavillandGipsy III DeHavilland
Gipsy Major DeHavillandGipsy Minor DeHavilland
Gipsy Queen II DeHavillandGipsy Queen III DeHavilland
DA-150 Desert Aircraft447-C Fairchild
P.24 Monarch FaireySF2-350 Fichtel & Sachs
G2G Ford4AC-199-E3 Franklin6A4-165-B3 Franklin6AC-264F2 FranklinDyad 220 Herbrandson
Dyad 280 B Herbrandson8Ab Hispano-Suiza9Qa Hispano-Suiza
12Y45 Hispano-Suiza12Ycrs Hispano-Suiza18-S Hispano-Suiza
GX-57 Honda61 K&B
KB7ATS KiekhaeferMercury Mk.55 Kiekhaefer
K-5 KinnerR-5 Kinner
Kinney-Noble150D2-B L.A.E
L2400EB1.AD Limbach4300 McCulloch
4318E McCullochTC6150-J-2 McCullochB-4 Pirate Menasco
B-6 Bucaneer MenascoC-4 Menasco
C-6S-4 Super Buccaneer MenascoC-6S-5 Super Buccaneer Menasco
D-4 Pirate MenascoD-4B Super Pirate Menasco
180 Mercedes-Benz151 Miller
Moto GuzziSabre Chrysler
Sabre IIA NapierH-56 NelsonH-59 Nelson
H-63A NelsonH-63B Nelson100SS Quadra
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
RC 1852 1 284 1 L L 1204 1 L L 1204 1 L A 1304 1 L A 906 1 L A 2106 1 L A 2002 2 O A NA NA NA 1 D 7.96 16 60004 1 X A 130
24 4 H L 2 1 SOHC 6.000 2200 30002 2 O A 26 68002 2 60 V L 2 2 7.250 36004 2 O A 906 2 O A 1656 2 O A 1172 2 O A 182 2 O A 248 2 90 V L 1809 1 R A 250
12 2 60 V L 1 1 SOHC 7.000 2:3 1140 900 240012 2 60 V L 1 1 SOHC 5.800 2:3 1040 860 240018 3 80 W L 6.200 1000 20001 1 L A 1 1 OHV 21 1 L A NA NA 7.500 D 14.25 oz 1.25 120002 1 L A NA NA 11?4 1 L 435 1 R A 1155 1 R A 1605 1 R A 5.200 75 18002 2 O A 9.25 154 2 O A 93 34004 2 O A 654 2 O A 726 2 O A 1254 1 L A 5.500 4 956 1 L A 1 1 5.500 160 19754 1 L A 1256 1 L A 2606 1 L A 1 1 2754 1 L A 5.500 1254 1 L A 6? 125 (160?)3 1 L L 584 1 L L 1 1 DOHC 7.000 D 440 115 43002 2 V 64
24 4 H L24 4 H L 2180
404 2 H A 404 2 H A 504 2 H A 441 1 L A 8.5
Page 95 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Power ProductsPower Products
Bengali 6 RenaultBengali 6Q-09 Renault
RighterRighter
Sidewinder RighterGriffon III Rolls RoyceGriffon 66 Rolls RoyceMerlin II Rolls RoyceMerlin III Rolls RoyceMerlin XX Rolls RoyceMerlin 28 PackardMerlin 31 PackardMerlin 61 Rolls RoyceMerlin 76 Rolls Royce
Merlin 113 Rolls RoyceMerlin Rolls Royce
Peregrine I Rolls Royce912 S4 Rotax
914 Rotax914 F Rotax
Ash-621R ShvetsovNoah T. Smith
Centurion 1.7 ThielertCenturion 4.0 Thielert
3W-56 3W Modellmotor3W-150i 3W Modellmotor
AR741-38 UAV Engines Ltd.AR741-1100 UAV Engines Ltd.AR741-1101 UAV Engines Ltd.
AR801R UAV Engines Ltd.50-499 WarnerT-14 Wright
WM-80 Wright-Morehouse
Number Rows Arrangement Cooling Intake Exhaust ArrangementCylinder @RPMWeight HPCRCarbs Gear RatioValves
545
6 1 L L 2206 1 L L 2202 1 O A 2.52 1 O A 62 1 L A 6
12 2 60 V L 2 2 SOHC 6.000 0.451 1720 275012 2 60 V L 2 2 SOHC 6.000 1900 275012 2 60 V L 2 2 SOHC 6.000 103012 2 60 V L 2 2 SOHC 6.000 103012 2 60 V L 2 2 SOHC 6.000 1250/126012 2 60 V L 2 2 SOHC 6.000 130012 2 60 V L 2 2 SOHC 6.000 130012 2 60 V L 2 2 SOHC 6.000 1580 300012 2 60 V L 2 2 SOHC 6.000 171012 2 60 V L 2 2 SOHC 6.000 171012 2 60 V L 2 2 SOHC 6.000 150012 2 60 V L 2 2 SOHC 6.000 0.477 885 30004 2 O A/L 10.500 100 58004 2 O A/L 1104 2 O A/L 9.000 115 58009 1 R A 6.400 0.637 1250 1000 2200
4 2 L L 2 2 18.000 1.69 295 1358 2 L L 2 2 18.500 1.692 2 O A 42 1 L A 17
RC A 381 1 RC A 38 78001 1 RC A 38 78001 1 RC A 42 80007 1 R A 1 1 145
14 2 R L 6002 1 O A 25
Page 96 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Undesignated 1908-1924
AbadalDragonfly I A.B.C.
Dragonfly IA A.B.C.Gnat I A.B.C.
Mosquito A.B.C.Wasp I A.B.C.
AdlerAL-24 Aeromarine
B AeromarineB Aeromarine
T-6 AeromarineU-6-D AeromarineU-873 AeromarineU-8-D Aeromarine
AeromarineS-12 AeromarineA-1 AlmenA-2 AlmenA-3 AlmenA-4 AlmenA-5 Almen
San Giorgio 4E-145 AnsaldoSan Giorgio 4E-150 AnsaldoSan Giorgio 4E-28 AnsaldoSan Giorgio 4E-28 Ansaldo
8V AntoinetteAnzani
5 Anzani10 Anzani10 Anzani10 Anzani10 Anzani
20B AnzaniArgus
As III O OpelArgus
As IV ArgusArgus
Lynx I Armstrong SiddeleyJaguar I Armstrong Siddeley
AshmusenAustro-DaimlerAustro-DaimlerAustro-DaimlerAustro-Daimler
D35 Austro-DaimlerAustro-DaimlerBasse-SelveBasse-Selve
6-1A Beardmore
Designation Manufacturer
USA 178(Clark Pursuit) USA 178
Dragon USA 286Loening M-2, Martin K.III USA 178, 286
None USA 178, 241, 286TA-1, TA-2, FK.23 USA 178, 286
USA 178,205USA 248USA 178USA 178
TG-3,4 USN 241, 376AC-1 Airship USA 178
UF-1, UO-1,2, TR-2 USN 99, 186 su 09, 241, 376N.9, TS-2, TR-2, (UF-1) USA/USN 178, 376
A-700 USN 241USN 241, 376USA 321USA 321USA 241USAUSAUSA 178USA 178USA 178
Roma Airship USA 186 Su 10, 321Antoinette VII USN 187
M.16 USN 178MS.21 USA
Caudron G.3A.2, G.4 USA 5USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178,241USA 178USA 178
DH.4 USA 178USN 374USA 178USA 178USA 178USA 178
H-B W.13 USNUSA 178USA 178USA 178
Wright F, Curtiss N,O USA 5,241
ServiceAircraft DataSource
Page 97 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Beardmore6-2B Beardmore185 Becker
B.R.1 BentleyB.R.2 BentleyBz I Benz
Bz III BenzBz IIIa BenzBz IV Benz
BenzBz IIIbo BenzBz IIIbv Benz
Bz V BenzBz Vb Benz
VI BenzVIv Benz
BHPBinetti
IIba B.M.W.IIIa B.M.W.IV B.M.W.6 B.M.W.
BredaBugattiBugatti
16 BugattiCato
ChristoffersonClement BayardClement Bayard
7-Z Clerget9-B Clerget
9-Ba Clerget9-Bc Clerget9-F Clerget9-Z Clerget
Clerget11Eb Clerget11G Clerget16X ClergetC ColomboD ColomboE Colombo
ColomboC-2 ContinentalE-7 Continental
Lucifer CosmosMercury CosmosJupiter CosmosJupiter Cosmos
Hercules CosmosE-4 Curtiss
ServiceAircraft DataSource
USA 178, 180F.E.2b USA 5,178
USA 178USA 178
Salamander, Snipe, N.2a Panther, HPS-1 USA/USN 178DFW Seaplane. USN 241, 285, 367
USA 178Roland D.VIb USA 205
Halberstadt C.V, LVG C.V,C.VI USA 178USA 178USA 178,205USA 178,205USA 178USA 178USA 178USA 178USA 178USA 178USA 178
Cs-II, Fokker D.VIIF, Hannover CL.V, Dornier D.I USA/USN 178USA 178
JL-6, Fokker C.I USNUSA 178USA 178USA 178USA 178USA 178
(Christofferson Reconnaissance) USA 66, 241USA 178, 241USA 178USA 178
N.17bis USA 5,178Sopwith 1A2, 1B2 USA
Camel, 1A2 USAUSA 178USA 178USA 178USA 178USA 178USA 178USA 178,241,213USA 178USA 178
O-1 Airship USNUSA 72USA 72USA 178USA 178USA 178USA 178USA 178
SC-1 Airship USA
Page 98 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
E-4 CurtissH/K Curtiss
L CurtissN CurtissO Curtiss
OX Curtiss
OX-2 Curtiss
OX-5 CurtissOX-5 Willys MorrowOX-5 Willys OverlandOXX Curtiss
OXX-2 CurtissOXX-3 CurtissOXX-5 CurtissOXX-6 Curtiss
S CurtissV Curtiss
VX CurtissGeared VX Curtiss
VXX CurtissV2 Curtiss
V2-3 CurtissV2-10 Curtiss
V2-C10 CurtissV-4 CurtissV-6 CurtissV-7 CurtissAB CurtissC-6 CurtissK-6 Curtiss
D-1200 CurtissK-12 CurtissK-12 CurtissC-12 Curtiss
CD-12 Curtiss
D-12 CurtissD-12A CurtissD-12C CurtissD-12D Curtiss
Inverted D-12 CurtissR-6 CurtissD III Daimler
D IIIa DaimlerD IIIa DaimlerD IV Daimler
D IVa DaimlerDamblancde Dion
De Palma
ServiceAircraft DataSource
Curtiss D,E USA/USN 5Curtiss D,E USA 241
USA 241Curtiss D,E USA 72,241
Curtiss D,E,F-Boat,G, Martin T,TT USA 66, 241Curtiss E,F-Boat,G,J, Modified J, JN.2,JN.3,L.1,(Armored Scout) USA 5, 66, 241
Burgess B.P., Curtiss JN.4, JN.4B, N.8, Martin TT, (Heinrich Trainer) USACurtiss JN.4A,CAN,D,D-2, TA-2, TW-4, Waco 9, A-4 Airship, TA-1/5
Airship USA 5,178
USACurtiss JN.3,N USA 5,178
Curtiss (H.14),L.2,S-3,X.1,Twin JN USA 5,178Curtiss H.14,N-9,JN.4C,S.6, Boeing EA USA/USN 5
Boeing C.1F USN 198Curtiss H-14, JN.4A USA
Burgess Tractor Trainer, Curtiss Tractor Trainer USA 241(Curtiss Armored Scout) USA 66,241
Curtiss R.2, R.3 USA/USN 5,178,241USA 72
(H.16), HS.1, HS.2 USNUSA 178
Curtiss R.3,R.4,R.9?,BT-1,H.12 USA/USN 5,178
Curtiss R.6,R.9 USA/USN 72None NA 224
USA 178USA 178
224USA 224USA 178,224
22418-B, 18-T USA/USN 5,178,224
USA 5,224Cactus Kitten USA/USN 178,224
R-3, R-6, CR-1,2,3, CF-1, CT-1, 18T USA/USN 178,224
CO-X, PW-7, XPW-8,A,B, PW-8, X/PW-9, TM.23,B, TM.24, XB.1A USA/USN 5R-6, R-8, F2C-1, R2C-1,2 USA/USN 5,241
PW-9A USAPW-9B,C,D USA
USA 224USN 241
Fokker D.VII, Pfalz D.III USA 178Albatros D.III,D.V,D.Va, Pfalz D.XII USA 178
USA 178USA 178USA 178USA 178USA 178
Kettering Bug USA 213, 241
Page 99 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-4 De PalmaVictory C-6 Dodge Tool
4 Duesenberg4 Duesenberg4 Duesenberg
Bugatti DuesenbergH Duesenberg
H-2 DuesenbergKing Aeronautical Engine Co.King Duesenberg
Attendu Airship Diesel Eastern Engineering Co.W-1 Engineering Division
W-1A Engineering DivisionW-1B Engineering DivisionW-2 Engineering DivisionW-3 Engineering Division
FarmanFarmanFarman
A-10 FiatA-12 FiatA-12 FiatA-12 FiatA-12 Fiat
A-12bis FiatA-14 FiatA-15 Fiat
A-15R FiatA-18 Fiat
San Giorgio FiatFimaFima
Adriatic GallowayAtlantic Galloway
BHP GallowayGoe VI Goebel
GoebelGoe II GoebelGoe III Goebel
7- GnomeB-2 Gnome
Gamma-Gamma GnomeLambda-Lambda Gnome
9-N Gnome9-N Gnome9-N Gnome
9-Nb Gnome9-Nc Gnome
Gnome11- Gnome
GnomeGnome
ServiceAircraft DataSource
D.W. Messenger, M-1 USA 5, 25USA 178, 241
Orenco A USA 297, 318D-1 USN 318D-1 USN 318
LUSAC-21, LUSAGH-21 USA 5,72,178, 318USA 72,178,297,318USA 72,178,318USA 72, 318USA 72, 318USN 152, 241, 364 1924/5
DB-1 USA 5,178DB-1B, GA-2, (XNBL-2) USA 241DB-1B, GA-2, (XNBL-2) USA 241
USA 178USAUSA 178USA 178USA 178USA 178USA 5,178
Breguet 14E2 USASIA 7B-1 USA
Breguet 14A2 USASIA 7B-2, Ca.44, Ca.5 USA/USN 178
USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178 ,321USA 178USA 178USA 178USA 178USA 178USA 178
Avro 504J USA 178(Curtiss Armored Scout) USA 66,241(Curtiss Armored Scout) USA 66,241
Orenco B, Heinrich Victor Scout USA 178Camel, (Berkmans B-1) USA
N.28 USA 5Morane AI USA
(SPAD XVC.1) USAUSA 178USA 178USA 178USA 178
Page 100 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Gnome
Gnome B-2 General VehicleGnome B-2 Aeronautical Engine Co.
Gnome Pittsburgh Model EngineGnome 9-N General Vehicle
GreenGreenGreenGyro
L GyroA-2 Hall-Scott
A-5 Hall-ScottA-5 Hall-Scott
A-5A Hall-ScottA-5A Special Hall-Scott
A-7 Hall-Scott
A-7A Hall-ScottA-7A Experimental Hall-Scott
A-8 Hall-ScottL-4 Hall-ScottL-6 Hall-Scott
HansaType S Headstrom
II Hiero8-A Hispano-Suiza
8-Aa Hispano-Suiza8-Ab Hispano-Suiza8-Ac Hispano-Suiza8-B Hispano-Suiza
8-Ba Hispano-Suiza8-Bba Hispano-Suiza
8- Hispano-Suiza8-Bc Hispano-Suiza8-Be Hispano-Suiza8-Bec Hispano-Suiza8-Cb Hispano-Suiza8-F Hispano-Suiza
8-Fb Hispano-SuizaV.4A Isotta-FraschiniV.4B Isotta-FraschiniV.4B BianchiV.5 Isotta-FraschiniV.6 Isotta-FraschiniV.6 Isotta-FraschiniV.7 Isotta-FraschiniV.8 Isotta-FraschiniV.9 Isotta-Fraschini
Jaenson
ServiceAircraft DataSource
USA 178Standard E.1, S.4,B,C, (Can Avro 504J), TA-3?, Berkmans Speed Scout,
Pigeon-Fraser Scout, Schiefer R.S. USA 72USA 72USA 72
(Spad 15) USA 105, 367USA 178USA 178USA 178,241
Wright B-2 USN 241, 367Burgess-Dunne AH-10 USN 367
241Burgess Twin Hydro, Burgess S, Martin R,S, Sloane H.2, Standard H.3,
H.4H, JR-1 USA 5USA 178
(Burgess Twin Hydro), Galludet D.2, (General Aero Pusher), L.W.F. V2, Standard Twin Hydro, Wright-Martin R,S USA 5,178
JR-1B USA 5, 94Standard J USA 5,178
Aeromarine M.1, JN.4A,D,S4, Martin TT, Standard J.1, Aeromarine 39-A, Boeing C,C-5,6, Burgess U-2, B-15,16 Airship USA 5,178
USA 72USA 178USA 178
Twin DH.4, Fokker D.VII USA 178USA 178USA 336
H-B Flying Boat USA/USN 178,2415
SPAD VIIC.1 USA(Gourdou-Leseurre 2C.1) USA
SE.5A, 5F.1 Dolphin USA 5
Caudron R.11A.3 USA
SPAD XIIIC.1 USASPAD XIA.2 USA
SPAD XIIIC.1 USASPAD XIICa.1 USA
Dolphin II USA 178SPAD XVIIC.1 USA
USA 178Macchi M.5,8, Caproni Ca.3 USA/USN 178,241
USA 178USA 178USA 178, 321
(Caproni Ca.4) USAUSA 178USA 178USA 178USA 178
Page 101 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Joffert4A Kessler6A Kessler
6B-400 KesslerKinner
K-1 KinnerKinner
5RA Kinney-Noble12 Knox
LanciaLancia
A-3 LawranceA-3 ExcelsiorB LawranceJ Lawrance
J-1 LawranceJ-2 LawranceL Lawrance
L-1 LawranceL-2 LawranceL-3 LawranceL-4 LawranceL-4 LawranceL-5 LawranceN Lawrance
N-2 LawranceR Lawrance
R-1 LawranceT-2 Lawrance
Maedler LawranceMaedler Lawrance
Le Maitre & GerardType Z Le Rhone
7 Le Rhone
9-C Le Rhone9-J Le Rhone9-J Le Rhone
9-Jb Le Rhone9-Jby Le Rhone
Le RhoneLe Rhone
9-R Le RhoneLe RhoneLe Rhone
Le Rhone 9C Union Switch & SignalLe Rhone 9C Tampier Union Switch & Signal
Liberty 4B HudsonLiberty 6A Thomas-MorseLiberty 6B Wright
ServiceAircraft DataSource
USA 178USA 72USA 72USA 72USN 364 1923USN 186 Su 10, 241USN
XS-2 USN 241, 376USA/USN 178, NACA
USA 178USA 178USA 186
Breese Penguin USA/USN 186Leoning L-3? USN 186 su 09, 367
USN 159TA-4, TA-5, TA-6, XPS-1, T.M. S.9, V/NB-1, HN-2, X/N2N-1, UF-1, TR-1,
TS-1, UO-1,1C, (VE.9W), TC-6,7 Airships USA/USN 5, 159, 214NB-1 USN 186 su 09, 376
Leoning L-3? USN 159, 367, 376USN 186 su 09
Sperry M-1,A,MAT USA 5OA Airships, SA-1,2 USA
OA-1, OB-1 TE-1/2, TF-1, Airships USAUSMB Airship, XS-1 USA/USN
Loening M-2 USN 159, 367USN 186USA 159, 178
TA-1, TA-2 USA 5, 159USAUSN 376USN 376USA 178USA 178USA 178
Bristol Scout D, Caudron G3 A.2,G4 A.2, Nieuport 21C.1,23C.1,24C.1,24bis C.1,27C.1,80E.2,81E.2,83E.2 USA 5
TA-3, MB.10, S.4E, (Avro 504J), 504K USA 5,178Morane 30E.1, Nieuport 17C.1,23C.1,27C.1 USA
N.21, N.24,Bis USASopwith 1A2 USA
USA 178(Heinrich Advanced Trainer, Spad 15) USA 367
USA 178USA 178USA 178
(Bristol Scout D), Orenco C,C-1,C-2,C-3, Standard E.1, M-Defence, S4C, S.6, S.7, TA-3, Heinrich Victor Scout USA 5
USA 72USA 248
D.VII, Cantilever Aero Bullet, PN-1 USA 5, 248TW-1, TG-1,2 USA/USN 248
Page 102 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
U.S.A.8 Packard
Liberty 8A BuickLiberty 8A Engineering DivisionLiberty 8A Willys OverlandLiberty 8A WintonU.S.A.12 Packard
Liberty 12A
Liberty 12A BuickLiberty 12A CadillacLiberty 12A DuesenbergLiberty 12A FordLiberty 12A LincolnLiberty 12A Nordyke & MarmonLiberty 12A PackardLiberty 12A Trego MotorsLiberty 12A Willys Overland
Liberty 12A
Liberty 12A
Liberty 12ALiberty 12B PackardLiberty 12C PackardLiberty 12E Packard
Liberty 12N PackardLiberty 12N LincolnLiberty 12S PackardLiberty 12 Aeromarine
Liberty 12 Modified PackardLiberty 12 Inverted Engineering DivisionLiberty 12 Inverted AllisonLiberty 12 2-Speed Allison
Liberty 12 Spur Gear AllisonLiberty 24 Engineering Division
GallaudetLorraine-Deitrich
8B Lorraine-Deitrich8Bb Lorraine-Deitrich
ServiceAircraft DataSource
LWF F, USB.2 USA 248
(USB.4), (USXB-2), (USP-2), D.VII, (Heinrich D-8), FVL.8, (SPAD XIII) USA 5, 248USA 248
248248
(Bristol Fighter), (Ca.5), DH.4, (DH.9), (O/400), HS-1L USA/USN 248RN-1, RS-1, (ZR-1) USA 248
DH.4,A,AMB-1,2,ARD,B,B-1,2,3,4,X/5,5,BD,BG,BK,BM,BM-1,2,X/BP,BP-1,X/BP-2,3,BT,H,XL,L,M,X/M-1,M-1,1K,1T,M-2,2A,2K,M-2P,M-2T, (DH.9), DH.9A, (USD.4), USD.9,A,B, GMB,C,P,T, MB.2, T.M. MB-1,2, CO-1, CO-3,
GAX, GA-1, IL-1, T-1, X/T-3, USAC-1, USAO-1, Breguet 14A.2,B.2, (Berkmans B-2,3), BVL.12, CB, J.V. Martin Bomber, Curtiss Eagle,
Lanzinus L.II, LWF Owl, (Hittle Pursuit), LUSAGH-11, LUSAO-11, Johns Multiplane, PT-1,2, DT-1,2, EM-2, EO-1, O2B-1,2, MT-1, HA, HA.1,2, HS.2L, MBT, TM-1, NC-1/10, P2N-1, F.5L. F.6L. PN-5,6, FT-1, H.16,
Sperry Night Bomber, Airship Roma USA/USN 248USA 248USA 248, 318USA 248USA 248USA 248USA 248USA 248USA 248
LUSAC.11, XDH.4BS, DH.4M-2S, X/TP-1, (XNBS-2), XCO-5A, NBS-1 USAXA-1, A-2, CO-1, NBS-1, S-1, T-2, TP-1, XNBL-1, (XNBL-3), XNBS-3 DT-
2, DW-C, JL-12 USAAO-1, CK-CO-2, XCO-4, CO-4A, XCO-5, XCO-6B,C, XCO-7,A, XCO-8,
DOS, LWF G.2, X/NBS-4, USAF.5L, T-3, C-1A USA/USN 248
T.M. MB.2, USAC-1 USA 248(LUSAC.31) USA 248
R.4L,LM, F.5L, R.6L, R.9, O/400, (Ca.46), Ca.5, L.W.F. G, H.12L, H.16,-2, HS.1L. HS.2L. HS.3, NC-1, NAF N-1, Paul Schmitt Floatplane, Gallaudet
D-4 USA/USN 248USA/USN 248
None USA 248DT series USN 376
None USA 248DH.4B, XCO-6, XCO-7B, COA-1, OL-2,4 USA 248
COA-1 USA 248DH.4B USA 248
C-1A, T-3 USA 248None USA 248
NAF GB-1 USN 248USA 178
Farman 50Bn.2 USA 5,178SPAD XVI.A2 USA
Page 103 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
8Bba Lorraine-DeitrichLorraine-Deitrich
12 Lorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-Deitrich
Mana III MANMana IIIa MAN
8200 MartinMaybachMaybachMaybachMaybach
Mb.IVa MaybachMb.IVa MaybachVL-1 MaybachVL-2 Maybach
4 Mead Engine Co.Miller
M-42 MorehouseMuffly
Murray & TregurthaC III N.A.G.Lion NapierCub NapierUr.II OberurselUr.III OberurselU.IV Oberursel
OpelOpel
O-8 OrloOtis-Piere
1A-258 Packard452 Packard
1A-744 Packard1A-825 Packard1A-905 Packard
1A-1116 Packard
1A-1237 Packard1A-1237 Packard2A-1237 Packard1A-1300 Packard
1A-1300 Modified Packard
1A-1500 Packard1A-1500 Inverted Packard1A-1500 Geared Packard
ServiceAircraft DataSource
USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178
Fokker D.VII USA 205Fokker D.VII USA 205
USN 377 2/2/17USA 178USA 178
(LZ-125) USAUSA 178USA 178
(ZR-3) USA 346ZR-3 USN 346
ZR-3, ZRS-4,5 USN 346Wright B-2 USN 241, 367
USA 241,297USA 241USN 374, Aero 1/27/12
372DFW C.Vc USA 178CK-CO-1 USA 178
USA 178Fokker D.VI USA 178
USA 178,205USA 178USA 178USA 178USN 377 5/1/16, 9/25/16, 374USA 178
None USN 181USA 181
Army D.VII test, JN.6HG-1 USA 178,181Army D.VII test, JN.6HG-1 USA 181
USA 181PW-1, Army D.VII test USA 5,178,181
PW-1,A,(B), PW-2,B, PW-4, PG-1, TW-1, XB-1A, Fokker D.VII, DH.4C, RN-1 Airship, X/NM-1 USA/USN 5, 178, 181, 376
RN-1 Airship USA 181USN 181USN 181USN 376
FB-3, X/O-1, X/O-2, O-7, XP-4, Navy DH.4 Special, OD-1, OL-1,2, NO-2, NC-2 USA/USN 5, 181(O-8) USA/USN 181O-9 USA/USN 181
Page 104 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
2A-1500 Packard2A-1500 Inverted Packard2A-1500 Geared Packard
3A-1500 Packard3A-1500 Inverted Packard3A-1500 Geared Packard
2A-1530 Packard1A-1551 Packard1A-1551 Packard1A-2025 Packard1A-2200 Packard1A-2500 Packard
1A-2500 Geared Packard2A-2500 Packard
2A-2500 Geared Packard3A-2500 Packard
3A-2500 Geared Packard4A-2500 Packard1A-2540 Packard2A-2540 Packard1A-2775 Packard1A-2775 Packard2A-2775 Packard
V12J Panhard-LevassorV12J Panhard-Levassor
Panhard-LevassorPanhard-Levassor
8-Aa PeugeotL41 Peugeot
16AJ PeugeotPeugeotPeugeotPeugeot
Pierce-Arrow1A R.A.F.1B R.A.F.3A R.A.F.4A R.A.F.4D R.A.F.5 R.A.F.
E-6 Rausie8C Renault8C Renault
Renault8Ca Renault8Ca Renault12D Renault
12Da RenaultRenault
8Gc Renault8Gdy Renault12Dc Renault
ServiceAircraft DataSource
X/FB-5, R3C-3, OL-6,7, XOL-7, RS-1 Airship USA/USN 181181181
FB-5, R3C-3 USN 181181181
(XB-1), XP-8 USAUSN 346
ZR-1 USN 181, 346VCP-R, R-1, R-4, R-5 USA 5,178,181
USA 181OL-3,6, XOL-7, PB-1, PN-9,10, X/SC-6 USA/USN 181
181X/PB-1, DT-5 USN 181
181X/TB-1, X/T3M-2 USN 181, 364 1926
181USA 181
XLB-1 USA 5XHB-1, (XHB-2), (XHB-3), LB-1/(A) USA
Kirkham-Packard Racer USN 181(Kirkham-Packard Racer) USN 181Mercury-Packard Racer USN 181
USA 178USA 178USA 178USA 178
Viosin 8.Bn.2 USA 5,178USA 178USA 178USA 178USA 178USA 178USA
B.E.2e USA 178USA 178USA 178USA 178USA 178USA 178
USA/USN 178, 241, 376Burgess H USA/USN 5,178,180Burgess K USA/USN 5,178
USA 178USA 178USA 178
Martin TT USA 241(Burgess-Dunne H, Curtiss Armored Scout) USA 66,241
AT-1 Airship USNA.R.2 A.2 USA 5,178A.R.1 A.2 USA
Farman 40-A.2,P.2 USA 5
Page 105 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
12- RenaultRenault
12Fcx Renault12Fcy Renault12Fe Renault12- Renault12- Renault12- Renault12M Renault12- Renault
R.E.P.6 Roberts
6X RobertsCondor Rolls-Royce
Condor I Rolls-RoyceCondor I Rolls-RoyceHawk I Rolls-RoyceHawk II Rolls-Royce
190 Rolls-RoyceRolls-Royce
Falcon I Rolls-RoyceFalcon II Rolls-RoyceFalcon III Rolls-RoyceEagle I Rolls-RoyceEagle II Rolls-RoyceEagle III Rolls-RoyceEagle IV Rolls-RoyceEagle V Rolls-RoyceEagle VI Rolls-RoyceEagle VII Rolls-RoyceEagle VIII Rolls-Royce
M9 SalmsonSalmsonSalmson
R9 SalmsonA9 Salmson
9RA SalmsonAB9 SalmsonZ9 Salmson
C.U. 9-ZM SalmsonZ9 SalmsonP9 Salmson
AZ9 SalmsonZ18 Salmson
SaunionPacific SiddeleyTiger SiddeleyTwin Siddeley
Puma SiddeleySh.4 Siemens-HalskeSh.5 Siemens
Sh III/a Siemens-Halske
ServiceAircraft DataSource
(Paul Schmitt Seaplane?) USA/USN 178, 367ZDUS-1,2,3 Airship USA/USN
Breguet 14B.2, Viosin 10Bn.2 USA 5,178Breguet 14A.2 USA
Paul-Schmitt Floatplane, GL.40 HB.2 USN 241USA 178USA 178USA 178USA 178USA 178USA 178
Burgess D-1 USN 367Curtiss AB-4 USN 367
USA 178USA 178USA 178
SST-9,11,12, SSZ.23,24 Airships USA/USN 178,188USA 178, 286USA 105USA 105USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178USA 178
Burgess-Dunne H, (Curtiss Armored Scout), (Paul Schmitt Seaplane?) USA/USN 66, 241, 367USA 178USA 178USA 178,241
Paul Schmitt Seaplane USN 241, 367USA 178USA 178
Salmson 2A.2 USA 5,241USA 178
CM.5,(6) Airships USN 241Paul Schmitt Seaplane USN 90, 241
USA 178USA 178USA 178USA 178USA 178USA 178USA 178
Caspar U-1, CHS-1 USN 14,241(Libelle I) USN 241
Siemens-Schuckert D.III/IV USA 178,241
Page 106 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Sizaire-Berwick1A SPA2A SPA6A SPA
SperryJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static Motors
SterlingD-4 SturtevantD-6 Sturtevant5 Sturtevant
5A Type 8 Sturtevant
5A Sturtevant5A 4 1/2 Sturtevant
Dyak SunbeamAmazon I SunbeamGhurka Sunbeam
Cossack SunbeamCossack III SunbeamCrusader SunbeamNubian SunbeamArab I SunbeamArab I AustinArab II SunbeamAfridi Sunbeam
12 SunbeamManitou SunbeamMaori IV SunbeamMatabele SunbeamMohawk Sunbeam
Sikh SunbeamViking SunbeamZulu Sunbeam
Thomas8 Thomas
88 Thomas890 Thomas-MorseV12 Tosi
UnionVan Blerck
Type HS 34 VNVWalker
WeinbergVertical Marine Winton
WisconsinWisconsin
WrightWrightWright
ServiceAircraft DataSource
USA 178USA 178USA 178
SVA-5,10 USA 178, 321USN 376USA 72,213,241USA 178,241USA 178USA 72,241
Burgess F,J USA 5Burgess I USA 5
Sturtevant S, (Burgess Twin Hydro), Thomas HS USA 5Sturtevant B, Aeromarine Twin Hydro, Burgess Twin Hydro, (Burgess-
Dunne H), DN-1 Airship USA/USN 178
L.W.F V1, Sturtevant S,S.4,Steel Military Trainer, Aeromarine Twin Hydro USA/USN 5L.W.F V3 USA
USA 178,211USA 178,211USA 178,211USA 178,211
ZR-2 USN 211USA 178,211USA 178,211
NT.2b USA/USN 178,211USA 178,241USA 178,211USA 178,211
J.V. Martin Bomber USAUSA 178,211USA 178,211USA 178,211USA 178,211USA 178,211USA 178,211USA 178,211
Thomas SH.4 USNL.W.F V, Thomas D.5,Twin Hydro,HS USA 5
(Thomas Pursuit) USA 5USA 178USA 178
F.5L, Navy D-1/6, F-1, J-1/4 Airships USA/USN 178USA 372USA 178
None USA 321 #251USA 159, 241USA 72USA 178USA 178USAUSA 72
(Bristol Fighter, SPAD XIII) USA 72
Page 107 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Wright
A WrightB Wright
C-1 WrightD-1 WrightD-1 WrightD-2 Wright
E Wright
E-2 WrightE-3 WrightE-4 Wright
E-4A WrightF Wright
Gale Wright
H WrightH Pierce-Arrow
H-2 WrightH-3 Wright
I WrightJ-1 WrightJ-2 WrightJ-3 WrightJ-4 Wright
J-4A WrightJ-4B WrightJ-5 Wright
J-5 WrightJ-6-5 WrightJ-6-7 WrightJ-6-9 Wright
K WrightK-2 WrightM Wright
P-1 WrightP-2 WrightP-2 WrightR-1 WrightR-1 WrightR-1 WrightR-1 WrightR-2 Wright
Simoon WrightT Wright
T-2 WrightT-2B Wright
ServiceAircraft DataSource
USA 72JN.4H,HB,HG,HM,HO,HP,HT, JN.5H, JN.6,HB,HG-1,2,HP, JNH, JNS-
A,A2, N.9H, N.10, VE.7, SX-6, JR.1,B, Wright-Martin V USA 5, 178
USA 241USA 72, 241USN 241, 376USA 72
TW-2, TW-3, TW-8, XPS-1, JN.4HG-1?, JNS-E, VE-7, S.E.5A,E, Spad 13E, (Eng. Div. USP-1), (Lawson Pursuit), UO-2 USA 5, 178, 241
TW-5,C USA 241V.E.9 USA
USA/USNUSN 376
USN
R-2, PW-2,A, PW-3, DH-4BW, MB-3,A,M, MB-4, Orenco D,D.2, M-8, (Lepere Pursuit), (Standard Pursuit), USB.1,2,3, XB-1,A, VCP.1,A, VE-8,
AS-1,2, CT-1, EM-2, LS-1, M-8,8O,81,81S, NAF TF-1 USA/USN 5, 178USA 72
PG-1, PW-5, PW-6, Fokker V.40 USA 241R-3, MB.6, MB.7, MB.9, Wright-Dornier USA
JN.6HG-1, JN.6HO, JNS-I, TW-3, N.9H, TC-4,5,8,9,10 Airships USA/USN 5UO-1,1C USN
NB-1 USNFU-1, UF-1, UO-1,1C USN 364 1923
X/F4C-1, NB-1,3,4, XJR-1, TS-1 USN 159, 364 1924364 1925
TC-11 USA/USNF4C-1, FU-1,2, NB-1, RA-1,2, TA-1,2, UO-1,3,4,5, XJQ-1, XPS-1, (XNO-
2), ZMC-2 Airship USA/USN 364 1926N4Y-1 USN
NT-2, OO-1 USNJR-2, RA-3, RR-1, TA-3 USN
USAPG-1 USA
USA 178,248DT-2, FB-4 USN 159
USN 159USN 376
PA-1 USA 5, 159, 178DH.4 test, PA-1 USA 159, 178
USA 159, 178USA 159, 178USA 159
F3W-1 USA 159USN 159
CS-1, F.7L, PN-7,8, XNW-1, NW-1,2, SC-1, DT-4, USN 376DT-5 USN
Page 108 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
T-3 WrightT-3A WrightT-3B WrightT-4 Wright4 Wright Brothers4 Wright Brothers6 Wright Brothers
6-60 Wright Brothers
Note: Early types above with no aircraft listed and source
Army-Navy Designation System 1924-Present
Double OpposedXH-1850-2 Fairchild-Ranger
H-2240 P&WXH-2470-1 LycomingH-2470-2H-2470-3
XH-2470-4H-2470-5H-2470-7H-2600-1 P&W
XH-2600-3H-2600-3
XH-2600-5H-2600-5
XH-2860-1 ContinentalH-3130-1 P&WH-3730 P&W
XH-4070-1 MenascoXH-4940 LycomingH-9350-1 Studebaker
Inverted VXV-715-2 NAFV-770-1 RangerV-770-2V-770-3
XV-770-4V-770-5
XV-770-6V-770-6
XV-770-7V-770-7V-770-8
XV-770-9V-770-9
V-770-10V-770-11V-770-13V-770-15
ServiceAircraft DataSource
X/F2W-1, F2W-2, CS-2,3, SC-2, SDW-1, T2M-1 USN 5, 364 1924, 376XSC-7 USN 376T3M-1 USN
Wright A USA 180, 241Wright B USA/USN 5, 180, 241, 366
Wright B, C, D USA/USN 241, 366Wright C, D-1, D-2, C-H, G, HS, K USA/USN 5,241
USA/USN 317None USA/USNXP-54 USA 200
USN 214USA 200
(XF14C-1) USN 214USA 200USA 200
USA/USN 200USA AFPPL
(XP-58) USA 200USA AFPPL
(XP-58) USA 200(XP-58) USANone USN 200None USNNone USA 200
USA AEHS 2014None USA 200
USN 315YO-50 USA 200
USNXAT-14A USA 200
NJ-2, XSO2U-1 USNUSA AFPPL, 200
XSO3C-1, XSO2U-1 USNXAT-14, SO3C-1,2 USN
XP-77 USAXP-77 USA 200
SO3C-2C,3, XOSE-1, XTE-1 USN(XP-77) USA AFPPL, 184XAT-6E USA 200
USN 334 1947AT-21 USA 200
USAAT-21, XBQ-3 USA 200
Page 109 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-770-17SGV-770C-1
SGV-770XV-920 Ranger
XIV-1430-1 ContinentalXIV-1430-3XIV-1430-5
I-1430-7I-1430-9
I-1430-11XIV-1430-13XIV-1430-15XIV-1430-17XIV-1430-19
I-1430-21I-1430-23I-1430-25IV-1440 Continental
XIV-2040-1 MenascoXIV-2220-1 ChryslerXI-2220-1XI-2220-3XI-2220-5XI-2220-7XI-2220-9
XI-2220-11
InlineYL-330-1 MartinYL-365-1 MenascoL-365-1 Menasco
XL-365-2L-365-3L-375-1 DeHavillandL-390 RangerL-410 RangerL-410L-410
L-440-1 RangerL-440-2L-440-3L-440-5L-440-7L-440-9
L-440-11XL-510-1 Miller
L-825 Liberty
Opposed PistonO-15-1 RighterO-15-1 HerkimerO-15-3 Righter
ServiceAircraft DataSource
XAT-6E USA 200XF6C-7 USN(XP-48) USA
USA 317XP-49 USA
(XP-53) USA(XP-52) USA
USA 200USA 200USA 200
XP-49 USAXP-49 USAXP-67 USAXP-67 USA
USA 200USA 200USA 200
(XP-58) USANone USA 200
USA 88, 320(XP-47H, P-60A, XP-60C) USA 200, 320
None USA 200, 320None USA 200, 320None USA 200, 320None USA 200, 320
XP-47H USA 88, 320
TC-14 USA 200,297USA AFPPL
X/YPT-16, PT-20 USA 200JH-1 USN
USA 200PT-24 USA 200
UC-61J USAUC-61C,E,F USA 5
USAUC-86 USA 5
PT-19,A,B, XPG-2,A,B, PG-2A USA 200J4F-1,2 USN 317
PT-19A,B, PT-26 USA 200OA-14, J4F-1 USA/USN 200
UC-61K, XUC-86A, PT-19A, PT-26A,B, PG-2A USA 200USA 200USA 200, T.O. 02-50AA-3
(XP-57) USA 200USA
A-2/A, OQ-2A/B, TDD-1 USA/USN 200
OQ-3, TDD-2 USA/USN 200
Page 110 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-15-3 McCullochO-15-5O-15-7
XO-40-1 Muncie GearO-45-1 RighterO-45-1 KiekhaeferO-45-1 MenascoO-45-3 Kiekhaefer
O-45-35YO-65-2 NelsonYO-90-1 McCullochO-90-1 McCullochO-90-2O-90-4
YO-95-2 PorscheYO-95-4YO-95-6YO-95-8
O-100-1 McCullochO-100-2O-100-3 Northrop
YO-100-4O-145-B Lycoming
O-145-B1 LycomingO-145-B2 Lycoming
GO-145-C2 LycomingO-150 Franklin
O-150-2 McCullochO-150-4 McCulloch
O-150-4A McCullochO-170-1 ContinentalO-170-2
YO-170-3
O-170-3O-170-5O-170-7O-175-1 FranklinO-180-1 FranklinO-190-1 Continental
YO-200-1O-200-1 FranklinO-200-3
XO-200-5O-200-5O-200-7O-200-9O-200-A ContinentalO-205-1 ContinentalO-235-1 LycomingO-235-2
ServiceAircraft DataSource
OQ-7 USAUSA 200
OQ-14, TDD-3 USA/USN 200USA/USN 200USA/USN 200
XOQ-15, X/OQ-17, KDR-1, TD4D-1 USA/USN 200TDD-4, KD3G-1,2, KD4G-1, KDR-1,2 USN 149
XROE-1, XAO-3 USA/USNOQ-6, Y/OQ-19 USA 200
X/OQ-6A, Y/OQ-19, OQ-19A,C, KD2R-1,2,3 USA/USNKD2R-1,2 USN 244
KD2R-2E,3 USN 245YRON-1 USN 246
DSN-2/QH-50B USN 55DSN-2/QH-50B USNDSN-1/QH-50A USN 55
XOQ-19B, OQ-19B,D, KD6G-1, KD2R-3, MQM-33A,B,C,D, MQM-57A,B USAF/USNKD2R-5, XQ-10, AN/USD-1, MQM-36A USN
KD2R-5, MQM-36 USNUSN
UC-90A USA 5UC-83A, UC-95, L-2F,J, L-3G,H, L-4C USA 5
L-2D USA 5UC-92, L-4G USA 5L-2E/G/K/L USAAF 5
OQ-19E, KDB-1, MQM-39A, MQM-61A? USA/USN 316 5/11/56
UC-83,B, YO-54 USA 200NE-1,2 USN
YO-55, YO-57, YO-58 USA 200L-2,A,B,M, L-3,A,B,C, L-4,A,B,H,J, L-8A, UC-90, YO-55, YO-57, O-57,A, O-
58,A,B, YO-59, O-59,A, JR-1 USA/USN 200USA 200
L-4/B/H/J USA 200L-3D, L-4D USA 200
USA 200L-16A USA/USAF 200
USA AFPPLA-8, AT-19A, L-6, L-7A, L-9A, X/PQ-8, XPQ-9 USA 200
USA 200XL-6, XO-63 USA
L-6, O-63 USA 200USA 200USA 200
X-26B, Q-Star USA 298L-16B, L-18B USA/USAF 200
USA 200HE-1 USN 200
Page 111 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
IO-235-L2CO-255 Continental
O-290-1 LycomingO-290-3
XO-290-5O-290-7O-290-9
O-290-11O-290-D
O-290-D2O-300-1 Franklin
XO-300-2O-300-3
XO-300-4O-300-5O-300-7
XO-300-9O-300-9
YO-300-11O-300-11O-300-DO-315 Continental
GO-315O-320-E2D Lycoming
O-335-1 FranklinO-335-2O-335-3O-335-4
YO-335-5O-335-5
O-335-5AO-335-5BYO-335-6O-335-6
O-335-6B6VS-O-335-
O-350 FranklinO-350-1 LycomingIO-360-A ContinentalIO-360-C ContinentalIO-360-D Continental
O-360-A2A LycomingIO-360-BIG6 LycomingIO-360-M1A Lycoming
IMO-360-B1B LycomingHIO-360-A1A LycomingHIO-360-B1A LycomingTIO-360-A3B6 Lycoming
TIO-360C LycomingVO-360-A1A Lycoming
XO-405-1 FranklinO-405-2
ServiceAircraft DataSource
TG-7A USAFXR-11 USA
A-8A, PQ-8A USA 200XC-107,Y/L-14 USA 200
(XR-9/A)/B USA 200X/Y/L-15, YR-9B USA 200
USA 200YH-24, YL-21, L-21A, U-7A USA 298
YH-24, L-21A USA 317L-21B, U-7B USA 298
XPG-1 USA 200USN 317
(XPQ-9) USA 200USN 317
XPG-1 USA 5, 200USA 200USA AFPPL
PQ-14A/B, XPQ-14C USA 200
XPQ-14, Y/PQ-14A, Y/PQ-14B, XPQ-15, TD2C-1 USA/USN 200T-41A USAFNoneNoneT-51A USAF 149
YH/R-13, A USA 200
YH-13, H-13B, Y/H-13C USA/USAF 200YH-23, O/H-23A USA
O/H-13D,E,G, YH-30 USA/USAF 298
HTL-4,6 USN
H-23B USA
O/H-13K 298
AFPPLXV-8A USA 298O-2A,B USAF
T-41B,C,D, O-2A,B, YO-3A USAFVZ-8P USA 298MZ-3A USNT-52A USAF 149
MQM-58A USA 149YHO-2-HU USA 298
TH-55A USA 298845A USAF 149
CM-44 USA/USNYHO-3, Princeton X-3B/C, Curtiss 2500 USA 298
USA 200(XTD2R-1) USN
Page 112 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XO-405-3XO-405-5O-405-5
XO-405-7XO-405-9O-405-9
XO-405-11XO-425-1 FranklinO-425-1O-425-2
XO-425-3XO-425-5O-425-5O-425-7O-425-9
XO-425-11O-425-13XO-435-1 LycomingO-435-1
XO-435-2O-435-2
XO-435-3XO-435-4O-435-4
XO-435-5O-435-5O-435-6
O-435-6AXO-435-7O-435-7
XO-435-9O-435-9
O-435-11O-435-12O-435-13O-435-15O-435-17O-435-19O-435-21O-435-23
O-435-23AO-435-23BO-435-23CO-435-25
O-435-25AO-435-A2O-435-C
GO-435-B1A6GO-435-C2
GO-435-C2B1GO-435-C2B2-G
TVO-435-25
ServiceAircraft DataSource
USA 200USA AFPPLUSA 200
XUC-86B, XBQ-1, XPQ-15, XTD3D-1 USA/USN 200
X/YR-6A, R-6A, XR-6C, XR-7. XR-8/A, HOS-1 USA/USN 200USA 200
YH-18A USA 200HO5S-1 USN
(HO5S-2) USCG 316 5/11/56USA 200
XL-13 USAYOA-15, L-13A/B USA 200
L-13A,B USA149
316 5/11/56USA 200
L-5,A,B,C,(D),E,G, XL-5F, O-62, YPT-25, U-19A USA
XL-5F, XBQ-4, TDR-1, K.225 USAAF, USN(XBQ-2) USA 200XTDN-1? USN
HTK-1 USNUSA AFPPL
XPQ-12, X/YPQ-12A, (PQ-12A) USA 200
HTL-7, HUL-1 USNXR-6, R-6B USA 200XR-6, R-6B USA
XN2T-2 USN 327USA 200
L-5G, U-19B USAF 200TDR-1 USN 244
L-5 USA 200
XL-17D, XL-22,A, X/Y/L-23, L-23A,B, YL-24, YL-26 USA 298
XHTK-1, K-225 USNYH-22 USAF
L-26C,D, U-4B, U-9C,DL-23A, YL-24 USA 317YL-26, YU-9AL-28A, U-10A
OH-13S 298
Page 113 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
TVO-435-D1BVO-435-
VO-435-21VO-435-23BVO-435-B1B
XO-470-1 ContinentalO-470-2
XO-470-3O-470-3O-470-4
XO-470-5O-470-7
O-470-7AO-470-7BXO-470-9O-470-11
O-470-11AO-470-11BO-470-13
O-470-13AO-470-13BO-470-15O-470-LO-470-M
FSO-470-AIO-470-DIO-470-LO-480-1 Lycoming
O-480-1AO-480-1BO-480-3
O-480-3AGO-480-B
GO-480-CSC6GO-480-F6
GO-480-G1D6GO-480-G2D6
IGSO-480-A1A6IO-520 Continental
IO-520-BIO-520-C
TSIO-520-CIO-520-DGIO-520
GTSIO-520GTSIO-520-M
O-525-1 ContinentalXO-540-1 FranklinXO-540-3O-540-5
XO-540-7O-540-9 Lycoming
ServiceAircraft DataSource
TH-13T 298H-13H USA/USAF 298H-13J USAF
H-23B/D USAHUL-1,1G, UH-13P USN/USCG
(XR-14) USA 200OE-2, O-1C USN
XH-15 USA 200Temco 33 USN
T-34B USNXR-15, XH-15 USA/USAF 200
L-17A,B,C, U-18A,B,C USA 200
USA 200L-19A,E, OE-1, O-1A,B,E,G USA/USAF
YT-34, T-34A USAF
USNTL-19D, T/O-1D USA 298U-17C, T-42A USA 298L-27A, U-3A USAF
YH-41 USAL-27B, U-3B USAF
T-42AR/L-23D, L-26B, U-4A, R/U-8D, U-9B
YL-26A USAFU-8G
XL-23CU-10B,D
L-23E, U-8EL-23F, U-8F
YQU-22A-BHEagle I USA/USAFU-26A
U-17A,BYU-22A, PD-249 USAF
QU-22BC-28A USNYH-41 USA
200200200
N-9MB USAAF 173, 200OH-23F/G
Page 114 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-540-9A LycomingO-540-A1AO-540-A2B
O-540-A-3D5AEIO-540-D4A5IGSO-540-B1A
IO-540-GIO-540-K1B5
IO-540-W3A5DVO-540-A1BGIO-550-A ContinentalXO-580-1 LycomingO-580-3
SO-580-A1ASO-580-BSO-580-D
IO-720-A1B LycomingXO-805-1 FranklinXO-805-2XO-805-3O-805-5
O-1230-1 LycomingO-1430-1 Continental
XO-1430-3
RadialXR-250-1 General MotorsR-250-3
YR-265-1 LeBlondR-265-1 Ken RoyceR-270-1 Lambert
YR-370-1 KinnerR-370-1 KinnerR-370-1 Ken RoyceR-420-1 WarnerR-440-1 KinnerR-440-3R-500-1 WarnerR-500-2R-500-3R-500-4R-500-5R-500-6R-500-7R-500-9R-540-1 WrightR-540-3 WrightYGR-540 WrightR-540-1 KinnerR-540-3 Kinner
YR-545-1 ContinentalR-545-1
ServiceAircraft DataSource
UO-1, U-11A USNU-5A
U-11A?T-3A USAF
(U-10C)YE-5A USAF
Britten Norman BN-2B-21 USA 298RG-8A USA/USCG 298
H-23F,G USARU-38A
XNQ-1,YH-31 USNYH-31YH-31 USA 298VH-31 USA 298VH-31 USA 298U-8F USA 298
XBQ-5, XTDR-1 USA/USN 200AFPPL
200200
XA-19A USAAF 200USA 200USA 200
None USA 200None USA 200
USAC-102 USAAF 200TE-3 USA 200
X/YPT-7 USA AFPPL, 200NT-1, X/YPT-6, Y/PT-6A USA/USN 200
UC-102,A USAX/C-10 USA 200
X/Y/PT-16A, PT-20A USA 200PT-21, NR-1 USA/USN 200
UC-61,A,B, UC-80, UC-94, XR-4 USA 200L-1/3+ Airships USN 153
XR-4 USA 200GK-1 USN 317
USA 200L Airships USNUC-61,A,B USA 200
USA 200Y/PT-9, Y/PT-10 USA 200
PT-10 USA 200YPT-10B USA 5PT-22,A USA 200
PT-22,A,C USA AFPPLYPT-9A, YPT-10A USA 200
Y/Y1PT-11 USA
Page 115 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-550-1R-550-1 WarnerR-550-3R-600-1 CurtissR-600
YR-670R-670-1 ContinentalR-670-2R-670-3R-670-4R-670-5R-670-6
R-670-6AR-670-7R-670-8R-670-9
R-670-11R-670-11AR-670-14R-670-98Y1R-670AYR-680-1 LycomingR-680-1R-680-2R-680-3R-680-4R-680-5R-680-6R-680-7R-680-8
R-680-9XR-680-10R-680-11R-680-12R-680-13R-680-14R-680-15R-680-16R-680-17R-680-B5R-680-B6R-680-D1R-680-D5R-680-E1YR-720 Kinner
Y1R-720R-720-1
YR-755-1 JacobsR-755-1
YR-755-3R-755-3
ServiceAircraft DataSource
USA AFPPLYR-4A,B, R-4B, XR-4C, HNS-1 USA/USN 200
XR-4, R-4B, HNS-1 USA/USN 200XPT-5, Y1/PT-11A USA
XN2C-1 USNUSA AFPPLUSA
G-1 Airship USN 200UC-72D, X/Y/PT-14 USA 200
PT-23,A, N2S-1, 3,4, N2T-1, ZTG USA/USN 200, T.O. 02-40AA-2PT-17,A,B, X/PT-23, PT-27 USA 200
G-2/8 Airships USNPT-14A USA T.O. 02-40AA-2
200USA 200USA 200
PT-17,A, PT-23 USA 200, T.O. 02-40AA-2USA 200, T.O. 02-40AA-2
N2S-1 USNXJW-1 USN
USA AFPPLYPT-10C, Y1/PT-11C USA
USA 200
YPT-9B, Y1/PT-11D USA 200
PT-13 USA 200RQ-1, XR3Q-1, XN4Y-1 USN
PT-13A USA 200NP-1, N2S-2 USN
AT-8, AT-9,A, AT-10, UC-72C, CQ-2, L-1,A,B,C,D,E,F, L-12, O-49,A,B, PT-9B USA 200
XNQ-1, YT-31 USA/USNAT-8, AT-9A, PT-13B,C,D USA 200
AT-8, AT-9,A, AT-10, AT-19,C, XBQ-2A, PT-13D USA 200
USA 200C-91 USA 5
PT-13D, N2S-5 USA/USN 200UC-81L USAUC-81,N USAUC-81C USAUC-81K USA
UC-81A, M USAYPT-9C, YPT-10D, Y1PT-11B USA
USA AFPPLPT-11B USA
YG-1 USAUC-43J, UC-72K, YG-1,A, XO-60, (XO-61) USA 200
USA AFPPLYG-1B/C, XR-3 USA 200
Page 116 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
YR-755-5R-755-7R-755-9
R-755-11R-755-A2R-760-1 WrightR-760-2R-760-2 NAFR-760-4
XR-760-6R-760-6R-760-8R-760-8 NAF
R-760-92R-760-94R-760-96 NAFR-760-E
R-760-E1R-760-E2R-790-1 WrightR-790-3R-790-5R-790-8R-790-AR-830-1 JacobsR-915-1 JacobsR-915-3R-915-5R-915-7
XR-918-2 GuibersonR-975-CR-975-E
R-975-E3R-975-1 WrightR-975-3R-975-5R-975-7
YR-975-9R-975-9
R-975-11R-975-11 ContinentalR-975-11 NAFR-975-13 Continental
XR-975-15 ContinentalXR-975-17 ContinentalR-975-19 ContinentalR-975-20R-975-22R-975-24R-975-26R-975-28R-975-28 NAF
ServiceAircraft DataSource
USA 200PT-18,A USA 200
C-78,A,B,C,D,E,F, XPG-2B, PG-3,A, AT-17,A,B,C,D,E,F,G,H, JRC-1 USA/USN 200LC-126A,B,C, U-20B,C USA
LC-126C USA 317X/Y/PT-15, UC-70C, UC-88 USA 200, 371
N3N-1,3 USNN3N-1,3 USN 332, 371N3N-1 USN 317, 371JK-1 USN
XN5N-1,N5N-1, JK-1 USNX/N2C-1, N3N-1,3, NY-2 USN 370X/N2C-1, N3N-1,3, NY-2 USN 332
USN AFPPLA-3, N2C-2, NY-3 USA/USN
N3N-1,3, XN3N-2,3 USNUC-72F USA
UC-81G, UC-88 USAUC-72B, UC-81B,H,J, UC-88, J2W-1 USA
AT-5,A, X/C-2, X/C-3, UC-70C, X/O-17 USA 200C-2A, C-3A, PT-3A, XO-17A USA 200
XO-14, XO-15 USA 200XN2C-1, N2C-1, NS-1 USN
X/N3Y-1 USNUC-43D,G, UC-70D, UC-72E,H,M,N,Q USA 200
UC-43C, UC-70A,B, UC-72A,G,J,L,P, XR-2-KE USA 200X/YO-60, (X/YO-61) USA 200
USA 200AT-20 USA 200
USN 241XF9C-1 USNX/RD-1 USN
XF9C-2, XR3O-1, SNC-1 USNC-2B, X/C-7, C-7A, C-9, YBT-3, Y1BT-6 USA 200
Y1/C-21, UC-43F, OA-3 USA 200UC-43K USA 200
BT-9,A,B,C,D USA 200, 371USA AFPPL
YG-2 USA 200BT-15,A, UC-43A,E,H USA 200
USA 200USN 332, 371
XBQ-6, (BQ-6A), C-36C, Y1/C-37, TD3R-1,2 USA/USN 200XH-10 USAF 200
USAF 200XL-25, XV-1 USAK-1 Airship USN
F9C-2 USNUSN 371
JB-1 USN 371K-3/8 Airships USN 153, 370, 371
USN 332
Page 117 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-975-30 NAFR-975-32R-975-34R-975-36R-975-38R-975-40R-975-42R-975-44R-975-46
R-975-46A ContinentalDR-980 PackardR-985-AYR-985 P&W
R-985-1 P&WR-985-2R-985-3R-985-4R-985-5R-985-7
YR-985-9R-985-9
R-985-11R-985-11AYR-985-13R-985-13
XR-985-15R-985-17R-985-19R-985-21R-985-23R-985-25R-985-27R-985-29R-985-31R-985-33R-985-34R-985-35R-985-36R-985-37R-985-38R-985-39
R-985-39AR-985-40R-985-45R-985-46R-985-48R-985-50
R-985-AN-1R-985-AN-1 Jacobs
ServiceAircraft DataSource
USN 332USN
XHJS-1, HUP-1 USN
XHOK-1?H-25A, HUP-2 USN
HUP-3, UH-25C USNXPT-8,A, NY-1B USA/USN
XOJ-1,2, XOK-1, L-12 USNTC-14 Airship USA
YBT-5, Y1BT-7, Y1/C-26, Y1/C-28, XC-81D, OA-4, XP-21, Y1/PT-12 USA 200TC-13/14 USN
OA-4A/B/C, YOA-5 USA 200, 247XOS2U-1 USNY1/C-26A USA 200, 247
USA 200, 247USA AFPPL
C-26B, OA-4A,B,C, YOA-5 USA 247BT-8 USA 200
BT-14A USA 247USA AFPPL
Y1/C-36, C-36A, UC-45C USA 247USA 200, 247
C-40,A,B,C,D, YC-43, UC-43B, C-45, O/A-9, JRB-1 USA/USN 200F-2 USA 247
YO-51, XR-1A USA 200, 247UC-45, UC-70/B/C/D, UC-71, JRB-1 USA/USN 200
AT-7,B, XBT-11, XBT-12, BT-13, BT-14, XBT-16, USA 200BT-13, BT-14/A USA 200, 247
AT-19B USA 200USA 200
UC-70, UC-71, UC-72 USA 200
USA 200
USA 200OJ-2, XRK-1, SG-1 USN 247C-45G/H, L-20A,B 247C-45G/H, L-20A,B 247
TC-14 USN 247XR2O-1 USN
OJ-2 USN 247GB-1, XJ3F-1, JO-1,2,3, JRF-1A, OS2U-1 USN 247
GB-2, OS2U-2, JRB-1,2, JRF-4 USN 247AT-7A, AT-11, BT-12, BT-13A,B, XBT-17, C-43, C-45A,B,D,F, Y/CQ-1A, F-
2A,B, SNV-1,2, YL-20, L-20A,B, OA-13A, U-6A, GB-1, U2C-1, JRB-3,4, XV-3 USA/USN 200, 247
200, 247
Page 118 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-985-AN-1AR-985-AN-2
R-985-AN-3R-985-AN-3 Jacobs
R-985-AN-3AR-985-AN-4R-985-AN-5R-985-AN-6R-985-AN-6 Jacobs
R-985-AN-6BR-985-AN-6B JacobsR-985-AN-7R-985-AN-8R-985-AN-9
R-985-AN-10R-985-AN-11R-985-AN-12
R-985-AN-12BR-985-AN-13R-985-AN-14
R-985-AN-14BR-985-AN-14B Jacobs
R-985-B5R-985-SBR-1044-2 KinnerR-1300-1 Wright
R-1300-1A WrightR-1300-1A KaiserR-1300-1A WillysR-1300-1BXR-1300-2 WrightR-1300-2 WrightR-1300-2 LycomingR-1300-2 Willys
R-1300-2A WrightR-1300-2BR-1300-3 WrightR-1300-3 LycomingR-1300-3 Willys
R-1300-3AR-1300-3BR-1300-3CR-1300-3DR-1300-4 LycomingR-1300-4 Willys
R-1300-4AR-1300 Kaiser-Frazer
R-1340-A P&W
R-1340-B
ServiceAircraft DataSource
247OS2N-1,OS2U-2/3 USA 247
AT-7C, AT-11A, C-45E,G,J, F-2A, L-20A,B, JRB-6, SNB-1,2, XV-3A USA/USAF/USN 200, 247USA/USAF/USN 200, 247
247JRB-1 USN 247
X/HO2S-1, HO3S-1,2, X/Y/R-5A, R-5D USAF/USN 200, 247JRF-1, 5, GH-1, V.77B, OA-13B USA/USN 247JRF-1, 5, GH-1, V.77B, OA-13B USA/USN 247
247247
X/Y/R-5D, YR-5E, H-5D, YH-5E USAF 200, 247OS2N-1, OS2U-3 USN 247
C-45F, JRB-3/4 USA/USN 247
JRF-5, ZA-9A, OA-13B USA/USN 247247
C-45H, XHJD-1, XHJH-1 247C-45H, XHJD-1, XHJH-1 247
C-45H/J USA/USN 298UC-72, XC-81D, UC-81E/F USA 247
XRK-1 USN(ZP2M) USN 200, 317
XT-28, T-28A USAF 371371371
371ZPG-1, N-1 USN 371
371371
ZPG-2,2W, ZP2N-1, E/SZ-1B USN 371ZPG-2,2W USN
HRS-3, HO4S-3, HUP-4, H-19B,D USAF/USN 371371371
HRS-3 USN 246ZP5K-1/ZS2G-1 USN 371
371
317FB-6, X/F8C-1, X/F8C-3, XJ2Q-1, OC-1,2, PJ-1,2, R2Q-1 USN 364 1926
X/F2B-1, X/F3B-1, XF4B-1, X/F7C-1, XF8C-2, XFH-1, XF3W-1, XJA-1, O2U-2, XPS-2, XRS-2 USN
Page 119 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-CR-1340-C1R-1340-D
R-1340-D1XGRS-1340EY1SR-1340GY1SR-1340H
R-1340-1 P&WR-1340-2R-1340-3R-1340-4R-1340-5R-1340-6
R-1340-7R-1340-8
R-1340-9R-1340-10R-1340-11R-1340-12R-1340-13R-1340-14R-1340-15R-1340-16
R-1340-16MR-1340-17R-1340-18R-1340-19R-1340-20R-1340-21R-1340-22R-1340-23R-1340-24R-1340-25R-1340-26R-1340-27R-1340-28R-1340-29
XR-1340-30YR-1340-31R-1340-31R-1340-32R-1340-33R-1340-34R-1340-35R-1340-36R-1340-37R-1340-38R-1340-39
ServiceAircraft DataSource
XFA-1, F8C-5, XF8C-6, XFG-1, XFJ-1, XF2U-1, XJQ-2, O2C-1, XM3O-1, O2U-3,4, O3U-1, PS-3, RA-4, XRE-1, XRQ-2, RR-4, RS-3, O-28 USN
RD-4 USNXP-15, XF5B-1, XF2G-1, XO4U-1, TC-13 USA/USN
XO2L-2, XRE-2 USNXP-12H USA 5, 148XP-12G USAXP-12G USA
XA-4, XF-1, XLB-3A, XO-12, RD-2 USA/USN 200TC-13, XOL-8 USA/USN 247
BT-2, C-4, C-5, XO-19, O-32,A, X/P-3A USA 200F8C-4, O2C-1, OL-8,9, XO2L-1, RD-3 USN 247
USA 200NJ-1, SNJ-1 USN 247
YF-1, C-4B, C-6/A. C-8, Y1C-12, YC-19, O-19B,C, (O-24), P-3A, X/P-12 USA 200F4B-1,2,3 USN 247
F-1A, C-8A, Y1/C-23, O-19,A, YO-22, (O-37), XP-3A, XP-12A, P-12B,C, XP-13A, F4B-4A USA/USN 200, 247
F4B-3, RD-2 USN 247A-4, BT-2A,B,C, Boeing 100, C-4A, XC-8, Y1/C-19 USA 200
XO3C-1, XO2D-1, O3U-3,6, XO5U-1, XSS-2, XSOC-1, USN 247O-19D,E, XP-12G USA 200, 247
NJ-1, O3U-6 USN 247O-19D,E, XP-12G USA 148, 200, 247UC-85, F4B-4, K-2 USA/USN 247
F4B-4 USN 247(A-5), Y1C-17, Y1/C-25, P-12D,E, XP-12E,L, YP-12K, F4B-4A USA/USN 200
NJ-1, O3C-1, XOSU-1, SOC-1, SNJ-1 USN 216, 247P-12F, (Y1P-28), F4B-4A USA/USN 200
X/Y1/P-26, Y1P-27 USA AFPPL, 200SOC-2,3,4, SON-1 USN 247
P-12J USA 148, 200247247247
P-26A,C, P-29A, JE-1 USA/USN 200, 247
C-29 USA 200XF7B-1 USN 247
USA AFPPLXP-29 USA 200
YP-29,A,B USA 247OA-7, P-26B USA 200
YP-29,A,B, P-29B USA 200XOSN-1, XOSS-1, XSO2C-1, SNJ-2 USN 247
200XPY-1, JE-1 USN 247
P-29 USA 200
Page 120 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-40R-1340-41R-1340-42
XR-1340-43R-1340-43R-1340-44R-1340-45R-1340-46R-1340-46R-1340-47R-1340-48R-1340-48
R-1340-48AR-1340-49R-1340-50R-1340-51R-1340-52R-1340-53
XR-1340-55R-1340-55R-1340-57R-1340-59R-1340-59R-1340-61R-1340-80R-1340-88R-1340-96
R-1340-AN-1 P&WR-1340-AN-1 ContinentalR-1340-AN-1 JacobsR-1340-AN-2R-1340-AN-3R-1340-AN-5R-1340-AN-7R-1340-S3H1
R-1340-S3H1-GR-1454 CurtissR-1454 CurtissR-1454 Curtiss
XR-1510-1 WrightYR-1510-1XR-1510-8
XR-1510-12R-1510-26R-1510-28R-1510-92
XR-1510-94R-1510-98XR-1530C JacobsXR-1530D JacobsR-1535-1 P&W
ServiceAircraft DataSource
HO4S-1 USN 247A-17AS, Y1/BT-10, L-11 USA 200
SNJ USN 247XC-35 USA 200H-43A USA
A-17AS, BC-2, Y/BC-3 USA 200XO2N-1, XOSN-1, XOSS-1 USN
X/ZP4K-1, X/ZSG-4 USN 247AT-6, BC-1,A,B USA 200
P3M-1 USNX/HOK-1 USN 247HOK-1 USN 246
BC-1A,B, AT-6A, UC-36B. USA 200
O-52 USA 200, 247HUK-1 USNC-73 USA 200
USA AFPPLXH-5C, YH-12B USA 247
HO4S-1,2, HRS-1,2 USN 247U-1A USA 247U-1A USA
X/F3B-1 USNJR-3, RR-2,3, O2U-1, XP2S-1 USN 247XFJ-2, RD-2,3, X/RE-3, RR-5 USN 247
A/T-6B,C,D,F,G,H,J, XAT-13, X/AT-15, AT-16, Y/C-64, C-64A,B, C-106A, XPG-4, T-6G, X/HRP-1,2, SNJ-2,3,4,5,6, JA-1 USA/USAF/USN 200
USA/USAF/USNUSA/USAF/USN
K-9/135 (425 HP), M-1/4, (O), ZP2K, ZP3K, ZSG-2,3 USN 247U-1A,B, UC-1, U2C-1 USA/USN 200, 247
USA 200, 247USA 200, 247
C-106 USAYC-137, YU-1 USA
USA 159O-8 USA 159
(XP-3) USA 159USA 200USA AFPPL
XFT-1 USNXF13C-3, XSBC-2 USN
XF3J-1, (XFL-1), XFT-1 USNXS2C-1 USN
XF12C-1, XF2J-1, XSBC-1, S4C-1, XSE-2 USNXF13C-1,2 USN
XBFC-1, XF11C-1 USNUSA 315USA 315
YP-31, (YP-32), (XP-34) USA 200
Page 121 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1535-2R-1535-02YR-1535-3R-1535-3
YR-1535-5R-1535-5
YR-1535-7R-1535-7R-1535-9
R-1535-11R-1535-13
XR-1535-15XR-1535-44R-1535-62
XR-1535-64R-1535-66
XR-1535-70R-1535-72R-1535-78R-1535-80R-1535-82R-1535-84R-1535-86R-1535-88R-1535-90
XR-1535-92R-1535-94R-1535-96R-1535-98
R-1535-102XH-1640-1 CurtissR-1640-1 Curtiss
YR-1670-1R-1670-1 Wright
XR-1670-2R-1670-3
XR-1670-5YR-1670-5R-1670-5
XR-1670-7R-1670-7R-1690-1 P&WR-1690-3R-1690-5R-1690-7R-1690-9
YR-1690-11R-1690-11R-1690-13R-1690-15R-1690-17R-1690-19
ServiceAircraft DataSource
SBU-3, SB2U-3 USN 247SB2U-3 USA
USA AFPPLUSA 200USA AFPPLUSA 200USA AFPPL
XO-46, O-46A USA 200USA 200
A-17 USA 200A-17A USA 200
USA 200XF6B-1, XF2F-1 USN
XJF-1 USNXBG-1, XB2Y-1, XFD-1, XF3U-1, XSBU-1 USN
BG-1, XSB3U-1 USNXF3U-1 USN 99
F2F-1, XF3F-1, XFT-2, XSBF-1 USNXSB2U-1 USN
XSBU-1, SBU-1, XSF-2 USNBG-1, XB2G-1, XB2Y-1, XSBC-3, SBU-1 USN
X/F3F-1 USN247247
XFD-1 USN AFPPL(XF4F-1) USN
XBN-1, X/BT-1, SBC-3 USNSB2U-1,2, XSB2U-3 USN
SBU-2 USNSB2U-3 USN
(XA-6), (X/Y/P-11), XO-18, XO-21, XP-13, (XP-14), XOC-3 USA/USN 368(XA-6), (X/Y/P-11), XO-18, XO-21, XP-13, (XP-14) USA 200
USA AFPPLUSA 200
(XF4F-1) USN(XO-48) USA 200
H.75 USAUSA AFPPL
XA-14 USA 200USA AFPPLUSA 200
XLB-2, XLB-4, YO-20 USA 200B-3A, LB-7, LB-10A, O-38,A USA 247
YA-10, Y1/C-14B, UC-89, O-38B USA 200, 247O-38C USCG 200, 247
YA-10, O-38E,F USA 200, 247USA AFPPL
Y/B-12A,B USA 200Y1OA-8, O-38E,F USA 200
USA 200USA 200USA 200
Page 122 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1690-21R-1690-22R-1690-23R-1690-24R-1690-25R-1690-28R-1690-32R-1690-38R-1690-40R-1690-42R-1690-44R-1690-52R-1690-54R-1690-AR-1690-CR-1690-E
R-1690-S2CGR-1690
XR-1740-2 ContinentalR-1750-1 WrightR-1750-3R-1750-AR-1750-D
GR-1750-DGR-1750
G1R-1750XR-1800 Wright
YR-1820-1R-1820-1 WrightR-1820-2
YR-1820-3R-1820-3
XR-1820-4R-1820-04R-1820-5R-1820-6R-1820-7
R-1820-08R-1820-9
R-1820-10R-1820-11R-1820-12R-1820-13
XR-1820-14R-1820-15R-1820-16R-1820-17R-1820-18R-1820-19R-1820-20
YR-1820-21R-1820-21
ServiceAircraft DataSource
USA 200XT5M-1 USNY1/OA-8 USA 200T4M-1 USN
C-56D, C-59, R5O-2 USA 200TG-1, T4M-1 USN 247
P3M-2, T4M-1 USN 247SU-2,3, T4M-1 USN 247
SU-1,2,3 USN 247SU-2,3,X4,4 USN 247
XBM-1, BM-1,2 USN 247JRS-1, XR4O-1 USN 247
XR4O-1, R5O-2, C-56A,C USA/USN 247O3U-2 USNSU-1 USNXB-17 USAOA-11 USA(LB-13) USA
USN 315XLB-6, LB-6, LB-10, LB-11, XO-21A, O-29 USA 200
Y1B-5, B-5A, LB-11, Y1C-14, Y1C-15 USA 200PD-1 USN
PM-1, PN-11, PN-12, XP2N-1, P2N-1, XP4N-1,2, XT2N-1 USNXPH-1 USNLB-9 USA
LB-11A USA(XP-69?) USA 88
USA AFPPLY1B-6, B-6A, C-11A, Y1/C-22, Y1/C-24, O-29A, O-38D,S USA 200
USA AFPPLUSA 200
XSBA-1 USNBF2C-1 USN 344C-15A USA 200
C-14, Y1/C-14A USA 200JF-3 USN 344, 371
YP-20 USA 200USN 344USA 200
R4C-1, R2D-1 USN 371YB-11, YO-44 USA 200
USN NACAC-100 USA 200
C-27B, O-45 USA 200
XB-10 USA 200J2F-1 USN 371
USA AFPPLA-12 USA 200
Page 123 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-1820-22R-1820-22R-1820-23R-1820-24
YR-1820-25
R-1820-25R-1820-26
XR-1820-27R-1820-27R-1820-28
XR-1820-29R-1820-29R-1820-30R-1820-31
XR-1820-32R-1820-32
YR-1820-33R-1820-33R-1820-33R-1820-34R-1820-35R-1820-36
YR-1820-37R-1820-37R-1820-38
XR-1820-39R-1820-39
XR-1820-40R-1820-40
R-1820-40BR-1820-40CXR-1820-41YR-1820-41R-1820-41
XR-1820-42R-1820-43R-1820-44
YR-1820-45R-1820-45R-1820-46R-1820-47
XR-1820-48R-1820-48R-1820-49R-1820-50R-1820-51R-1820-52R-1820-53R-1820-54R-1820-55
XR-1820-56
ServiceAircraft DataSource
XF2A-1, XF3F-2, XSBA-1, XSBC-4 USNF3F-2,3, XFN-1 USN 371
Y/C-30 USA 200
USA AFPPL(A-15), Y/B-10, C-27C, XC-31, X/C-32, C-33, Y/C-34, YOA-5, (OA-6), YO-
44 USA 200(TE-1), TG-2 USN
USA AFPPLUSA 200
J2F-2,2A,3,4 USN 371USA AFPPLUSA 200
J2F-2,4 USN 371YB-10A USA 200, 371XBT-2 USN
SBD-1,2,3,4 USN 200, 371USA AFPPL
B-10B USA 371C-32A USA 200
F2A-1, SBC-4 USN 371USA 200
J2F-3,4 USN 371USA AFPPL
YA-13, (A-13), Y/O-40A, Y1/O-40B USA 200SBN-1 USN 371
H.75 {XP-36} USAY/Y1/B-17 USA 200, 371
XF2A-1, XF5F-1 USNF2A-2,3,X4, XF4F-5, PBO-1, R5O-4 USN 243, 371
F4F-4B USN 371R5O-4,5 USN 245
USA AFPPLUSA AFPPL
XO-47 USA 200XF5F-1 USN 371
USA 200, 371R3D-1,2,3 USN 371
YOA-5 USAB-11, B-18, C-38 USA 200, 371
USN 371Y1A-18, A-18 USA 200, 371
USN NACAXF2A-4, XF4F-5 USN 243, 371
O-47A,B USA 200, 371J2F-5, A-12 USN 371
B-17A,B USA 200A-24,A, SBD-3,4 USA/USN 371
B-18A,B,C, C-42, C-58, C-66 USA 200, 371J2F-6, XF4F-5, A-12A USA/USN
C-39 USA 200, 371XF4F-8 USN
Page 124 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-56R-1820-56AR-1820-56SR-1820-56W
R-1820-56WAR-1820-57R-1820-58R-1820-59R-1820-60R-1820-61R-1820-62
R-1820-62AR-1820-63R-1820-64R-1820-65R-1820-65 StudebakerR-1820-66R-1820-67R-1820-68R-1820-69
R-1820-70WR-1820-71
R-1820-72AR-1820-72W
R-1820-72WAR-1820-73
R-1820-74WR-1820-75R-1820-76
R-1820-76AR-1820-76A LycomingR-1820-76BR-1820-76B LycomingR-1820-76CR-1820-76DR-1820-77R-1820-78R-1820-78R-1820-79R-1820-80R-1820-80R-1820-80R-1820-80 Lycoming
R-1820-80AR-1820-80BR-1820-80CR-1820-81R-1820-82R-1820-82 Lycoming
R-1820-82AR-1820-82BR-1820-82C
ServiceAircraft DataSource
X/FM-2, XFR-1, XJL-1 USN 371FM-2 USNT-28D USNFM-2 USN 371FM-2 USN 371
O-47B USA 200, 371
USA 200A-24B, SBD-5, XSBD-6 USA/USN 200, 371
USA 200XSC-1, SC-1 USN 371
SC-1 USN 371
X/F8C-7,XF8C-8, X/O2C-2, PD-1, PK-1, PM-2, XP2M-1,2 USNB-17B,C,D,E, X/YB-40, BQ-7 USA 200, 371
343SBD-6 USN 371XP-50 USA 200, 371
XP-50 USA 200, 371(XF2M-1) USN 371
C-49,A,B,C,D,F,J,K, C-56E, C-84 USA 200, 371USN 371
X/FR-1 USNFR-1 USN 371
B-17C USA 200, 371XFR-2,(FR-2), XFR-3,4 USN 371
A-27 USA 200, 371(XA2F-1), XJR2F-1, PF-1, SC-1A,X/2, XS2F-1, XWF-1 USAF/USN 371
PF-1, UF-1/G,2/G, SA-16A,B, U-16A,B,C,D,E USAF/USN 371371
UF-2/G, SA-16B, U-16B,D,E USAF/USN 371371
P-64 USA 200, 371XBY-1, X/BFC-2, X/F11C-2, FF-1,2 USN
XSN2J-1 USN 371C-49E, C-50C,D, C-110 USA 200, 371
XBF2C-1, XF11C-3 USNJF-3, XSBC-1 USN 371
YC-47F, C-129, C-117D, X/R4D-8 USA/USN 371YC-47F, C-129, C-117D, X/R4D-8 USA/USN 371
C-50B USA 200, 371X/Y/S2F-1,2, X/TF-1, WF-2, HUS-1, SA-16B USN 371X/Y/S2F-1,2, X/TF-1, WF-2, HUS-1, SA-16B USN 371
S2F-3, TF-1, WF-2 USN 371
Page 125 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-82DR-1820-82WA
R-1820-83R-1820-84R-1820-84
R-1820-84A LycomingR-1820-84BR-1820-84B LycomingR-1820-84CR-1820-84DR-1820-85R-1820-86R-1820-86 Lycoming
R-1820-86AR-1820-86BR-1820-87
R-1820-87CR-1820-88R-1820-88R-1820-89R-1820-90R-1820-91R-1820-92R-1820-93R-1820-94R-1820-95R-1820-96
R-1820-97
R-1820-97 StudebakerR-1820-98R-1820-99
R-1820-100R-1820-101R-1820-102R-1820-103R-1820-103 Lycoming
R-1820-103AR-1820 Lycoming
R-1820-AR-1820-ER-1820-F
Y1R-1820-FSR-1820-F2R-1820-F51
SR-1820-F52R-1820-F62
R-1820-G102GR-1820-G105A
R-1820-G133R-1820-G202A
ServiceAircraft DataSource
X/Y/S2F-1,2,3 USN 371C-51 USA 200, 371
X/SF-1, XSOE-1 USN 371HUS-1, X/Y/HSS-1, H-34A,B,C USA/USN 371
HSS-1 USN 246, 371HSS-1N, HUS-1Z USN 246, 371HSS-1N, HUS-1Z USN 371
371371
C-50,A USA 200, 371PH, TG-2 USNT-28B,C,D USN 371T-28B,C,D USN
A-29,A,B, A-33, AT-18,A, C-60A,C, XC-60B, C-63, R5O-1,5,6 USA/USN 200, 371R5O-6 USN 245
X/P2Y-2 USN 371ZPG-3W, EZ-1C USN
C-56 USA 200, 371XP2Y-2, P2Y-3 USN 371
B-17E USA 200, 371
B-17F USA 200, 371PB4Y-2, QP-4B USN
P-36G USA 200, 371
B-17F,G,H,L,N,P, BQ-7, C-49G,H, C-56B, X/YC-108, XC-108A,B, CQ-4, F-9A,B,C, X/PB-1 USA/USN 200, 371
B-17F,G,H,L,N,P, BQ-7, C-49G,H, C-56B, X/YC-108, XC-108A,B, CQ-4, F-9A,B,C, X/PB-1 USA/USN 371
YC-125A,B USA
YC-122B,C USA 371JF-2,3 USN 371
H-21A,B,C USA/USAF 371H-21A,B,C USA/USAF 371
371
P2D-1 USNXBN-1, XFF-1, X/P2Y-1, XRO-1, T2D-2 USN
XFF-1, XSE-1 USNYO-40 USART-1 USN
PH-2,3 USNUC-103 USAC-111 USARB-10 USAB.339D USAXSBD-1 USNR4D-2 USN 19
Page 126 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
GR-1820-G205AR-1820-HDXR-1828-2 KinnerXR-1830-1 P&WYR-1830-1R-1830-1 P&WR-1830-2R-1830-3R-1830-4R-1830-5R-1830-6R-1830-7R-1830-8
XR-1830-9R-1830-9
R-1830-10XR-1830-11R-1830-11R-1830-12
XR-1830-13YR-1830-13R-1830-13R-1830-14
XR-1830-15R-1830-15R-1830-16R-1830-17R-1830-18R-1830-19R-1830-20R-1830-21R-1830-22R-1830-23R-1830-24R-1830-25R-1830-26R-1830-27R-1830-28R-1830-29R-1830-30R-1830-31R-1830-32R-1830-33
R-1830-34AR-1830-35R-1830-36R-1830-37R-1830-38
XR-1830-39R-1830-39R-1830-40R-1830-41
ServiceAircraft DataSource
B.439D USAXC-54K USA
USN AFPPL, 241USA AFPPLUSA AFPPL
(XP-34), XB-14, (P-33) USA 200, 247
USA 200
USA 200
XA-16 USA 200
USA AFPPLXA-16, XB-14, P-35 USA 200
USA AFPPLXBLR-1, XB-15, XC-105 USA 200
USA AFPPLUSA AFPPL
Y1P-36, P-36A,D,E,F USA 200
USA AFPPLUSA 200
YA-19, P-36A,C USA 200
XP-41 USA 200
C-41,A USA 200
P-36B USA 200, 247
P-36B USA 200
USA 200, 247
USA 200, 247
XP-42, YB-10A, XP-41 USA 200, 247
X/Y/B-24, B-24A, XB-24B, PBY-3, P-66 USA 200R5O-2
YP-43, P-43D USA 200
XA-22 USA 200
247B-24A, P-43D USA 200
XB-24B, B-24C USA 200, 247
Page 127 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-42
R-1830-43R-1830-43 BuickR-1830-43 Chevrolet
R-1830-43AR-1830-43A BuickR-1830-43A ChevroletR-1830-44R-1830-45R-1830-45 BuickR-1830-45 ChevroletR-1830-46R-1830-47R-1830-48R-1830-49R-1830-50R-1830-51R-1830-52R-1830-53
XR-1830-54R-1830-55R-1830-56R-1830-57R-1830-57 ChevroletR-1830-58R-1830-59
XR-1830-60R-1830-61R-1830-62R-1830-63R-1830-64
R-1830-65 BuickR-1830-65A BuickR-1830-65A ChevroletXR-1830-66R-1830-66R-1830-67 Chevrolet
XR-1830-68R-1830-69
XR-1830-70R-1830-70R-1830-71
XR-1830-72R-1830-72R-1830-73
XR-1830-74R-1830-75 Buick
XR-1830-76R-1830-76R-1830-78
ServiceAircraft DataSource
AT-22, B-24D,E,G,H, XB-24F,P, XB-41, BQ-8, C-57C, X/C-87, C-87B, X/C-109, XF-7 USA 200
343RY-2 USA 200
USA 200
A-28, AT-12, C-87, P-35A, RY-1 USA 200212212
P-43B,D USA 200
A-28, P-43A,B,C USA 200
XA-19C, C-48A,B,C, C-52,A,B,C,D, C-57B USA 200
C-57,A USA 200XT3D-2, XP3Y-1 USN
USA 200, 247
P-43A-1,E USA 200USA
XT3D-2, XP3D-1 USN 247B-24D USA 200, 247
XPTBH-2, XTBD-1, XTBG-1 USN 247P-66, LB-30 USA 200, 247
JF-1 USN 247P-66 USA 200
TBD-1/A, XP3D-2, P3Y-1, XPBY-1, PBY-1,2 USN 247, NACAB-24D,E,G,H,J,L,M, XB-24J,Q, BQ-8, C-87,A, C-109, F-7,A,B, PB4Y-1,
R2Y-1 USA/USN 200B-24H,J,L, C-87,A,B USA 200, 247B-24H,J,L, C-87,A,B USA 200, 247
USN NACAPBY-3, XF4F-2 USN 247
A-28A, C-47, PBO-1 USA/USN 200XPBS-1 USN 247
USA 200, 247USN NACA
XTBD-1 USN 247USA 200
XPB2Y-1 USN 247X/PBY-4, XPBY-5A USN 247
USA 200PBY-5 USN 247
X/YB-24K, X/Y/B-24N, (B-24N) USA 200, 247XF4F-3 USN 247F4F-3,4 USN 247PB2Y-2 USN 247
Page 128 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-80R-1830-82
R-1830-82AR-1830-84
R-1830-84AR-1830-86R-1830-88
R-1830-88AR-1830-90
R-1830-90BR-1830-90CR-1830-90C BuickR-1830-90D
R-1830-92R-1830-92AR-1830-94R-1830-96R-1830-98R-1860-1 P&WR-1860-3R-1860-5R-1860-7R-1860-9
R-1860-11R-1860-13
YR-1860-15R-1860-15R-1860-17R-1860-18R-1860-19R-1860-42R-1860-48R-1860-52R-1860-56R-1860-BGR-1860
XR-2000-1 P&WXR-2000-2R-2000-3R-2000-4
R-2000-4AR-2000-5R-2000-6
R-2000-6AR-2000-7
R-2000-7M2R-2000-9R-2000-9 Buick
R-2000-9A
ServiceAircraft DataSource
XPB2Y-1, PBY-4 USN 247C-48, PBY-5A, R4D-1 USA/USN 200
PBY-5A USN 247PBY-3 USN 247R5O-3 USN 247
F4F-3,4,7, FM-1 USN 247XPB2Y-3,3,5, PBY-3, C-47 USA/USN 247
USN 247F4F-3A,(4A), XF4F-6, F4F-6 USN 247C-47B,D,J,K,(M),P, R4D-6,7 USA/USN 247
C-47B,D,J,(M),P, C-117A,B,C, R4D-6,7, OA-10 USA/USN 200C-47B,D,J,(M),P, C-117A,B,C, R4D-6,7, OA-10 USA/USN 200
C-47B,D,(M),N,P, C-117A,B,C, R4D-6,7 USA/USN 200
C-47,A,C,D,H,(M),N, XC-47C, C-53,B,C,D, XC-53A, C-57D, (Y/C-62), C-68, Y/C-76,YC-76A, (C-76A), C-93A, (C-104,A), PBY-5,6, PB2B-1,2, PBN-
1, PBV-1, PB2Y-3R,5, R4D-3,4,5, RB-1, JRY-1, O/S/A-10,A,B USA/USN 200PBY-5,A, 6A USN 245, 247
(C-87C), XPB2Y-6, X/PB4Y-2, P4Y-2, XR2Y-1, RB-2 USA/USN 200, 247PB2Y-3 USN 247P4Y-2 USN 247
LB-12, Y1C-11, Y1C/C-16, YC-20 USA 200LB-8 USA 200
Y1C-27 USA 200Y1B-4, B-4A, Y1C-18 USA 200
USA 200Y1B-9A USA 200
YB-9 USA 200USA AFPPLUSA 200, 247
YB-13 USA 200USA 247
C-27A USA 200USN 247USN 247USN 247USN 247
XT3D-1 USN(LB-14) USA
USA 200XF5U-1 USN 247C-54,A USA 200
C-47E, EC-47Q, R5D-1,2,3,4 USA/USN 246, 247
USA 200
XF5U-1? C-54A,B,C, L,M,N,P, (XC-54F), R5D-1,2 USA/USN 200Y/AC-1/A, CV-2A,B, YC-7A, C-7A,B USA
C-54D,G,(H,J),S,T, R5D-2,5,6 USA/USN 200, 247USA/USN 200, 247
R5D-1,2,3,4 USN 245, 247
Page 129 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2000-9BR-2000-11R-2000-13
R-2060 P&WH-2120 Wright
XR-2120 WrightR-2160-1 WrightR-2160-3R-2160-5R-2170 Wright
R-2180-1 P&WXR-2180-2R-2180-3R-2180-4R-2180-5R-2180-6R-2180-7R-2180-9
XR-2180-11XR-2270-1 P&WR-2600-1 Wright
XR-2600-2 WrightXR-2600-3 WrightR-2600-3 WrightR-2600-4 WrightR-2600-5 WrightR-2600-6 Wright
R-2600-6A WrightR-2600-7 Wright
XR-2600-8 Wright
R-2600-8 WrightR-2600-8A WrightR-2600-9 Wright
XR-2600-10 WrightR-2600-10 WrightR-2600-11 Wright
XR-2600-12 WrightR-2600-12 Wright
R-2600-13 WrightR-2600-14 WrightR-2600-15 WrightR-2600-16 WrightR-2600-17 Wright
R-2600-17A WrightR-2600-18 WrightR-2600-19 Wright
XR-2600-20 WrightR-2600-20 WrightR-2600-21 WrightR-2600-22 Wright
ServiceAircraft DataSource
C-54D,E,(F),M,Q,R,U,V, YC-122,A, R5D-3,4 USA/USN 200None USA 247None USA
USNUSNUSA 163,200
(XP-58), (XP-69) USA 163,200(XP-58) USA 163,200None
XB-21, (P-44-1) USA 200USN 247USA 200
(Y1B-20) USA 200USN 247
XA-21 USA 200XB-21 USA 200XR-16 USA 247
USA 333(B-22) USA 200, 371
XT3D-2 USN 371USA 200
A-20A, XA-20B,F, B-23, UC-67, BD-1 USA/USN 371371
USA 200, 371XPBM-1,1,2 USN 371
PBM-2 USN 371A-20,(D), X/Y/F-3, (O-53) USA 200, 371
XSB2A-1 USN
XSB2A-1, SB2A-1,X2(2),3, X/SBF-1, SBW-1, TBF-1, TBM-1, A-25A, R.340 USA/USN 200, 371SB2A-4 USN 371
B-25,A,B, PBJ-1 USA/USN 200, 371XF6F-1,2, XF7F-1, XTBF-2, TBM-2 USN
(XP-65), XF6F-1, XTBF-2 USA/USN 371X/P-70, A-20B,E, BD-2 USA/USN 200
USN NACAPBM-3 USN 200, 371
A-30A,(B), A-35B, AT-24A,B,C,D, B-25,A,B,C,D,G,H, XB-25E,F,G, F-10, O-56, PBJ-1C,D,G,H USA/USN 200, 371
XF7F-1 USN 371(XB-33,A) USA 200, 371XF6F-2? USN 151, 371
C-55 USA 200C-55 USA 371
A-30,A, A-31, (A-34), A-35,A, B-37 USA 200, 371USN NACA
XSB2C-3,3,4,X5,5, SBF-3,4, SBW-3,4,5, X/TBF-3, TBM-3 USN 371V-72 USA 200
X/PBM-3D, XSB2C-6, TBM-3 USN 371
Page 130 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2600-23 WrightR-2600-25 WrightR-2600-27 WrightR-2600-29 Wright
R-2600-29A WrightR-2600-31 WrightR-2600-33 WrightR-2600-35 Wright
R-2600-A71-3 WrightR-2600-A2A Wright
R-2600 StudebakerR-2600 P&W
R-2800-1 P&WXR-2800-2 P&WR-2800-3 P&W
XR-2800-4 P&WR-2800-5 P&WR-2800-5 Ford
XR-2800-6 P&WR-2800-7 P&WR-2800-8 P&WR-2800-8 Nash
R-2800-8W P&WR-2800-8W NashR-2800-9 P&W
R-2800-10 P&WR-2800-10 Nash
R-2800-10W P&WR-2800-10W NashR-2800-11 P&WR-2800-12 P&WR-2800-13 P&W
R-2800-14W P&W KCR-2800-15 P&W
XR-2800-16 P&WR-2800-16 P&W
XR-2800-17 P&WR-2800-18 P&W
R-2800-18W P&WR-2800-18WA P&W
R-2800-19 P&WR-2800-20 P&WR-2800-21 P&WR-2800-21 FordR-2800-22 P&WR-2800-22 P&W KC
R-2800-22W P&W KCXR-2800-23 P&WR-2800-23 P&W
XR-2800-24 P&WR-2800-24 P&W
ServiceAircraft DataSource
A-20C,G,J,K, F-3A, P-70,A,B, AT-24A,B,C,D USA 200, 371
None USA 200A-20H,K, A-30A,(B),(C), B-25H,J,K,L,M,N, PBJ-1H,J USA 200, 371
RB-34B, B-37, O-56 USA 200, 371
TB-25 USANA.40B USA
B.314, C-98 USA/USN343
XA-19B USA 151XP-47B, XF4U-1 USA/USN 151
USA 200XF4U-1 USN 151
B-23, B-26,A,B, XB-26D, C-46 USA 151USA 151, 343
XTBU-1 USN 151(P-44-2) USA 151
F3A-1, 1A, F4U-1,1A, FG-1,1A USN 151USN 151
F3A-1A, F4U-1A,C,D, FG-1A,D USN 151USN 151
(XB-27) USA 151XA-19B, (Y/P-60A), XP-60E, X/Y/P-61, P-61A, X/F6F-3 USA/USN 151
USA/USN 151F6F-3,3N,5 USN 151
USN 151XB-28,A USA 151, 247
None USA/USN 151, 247None USA 151, 247
FG-3, XP-61D, YP-47M, XF4U-3B USA/USN 151XB-28,A USA 151, 247
XF6F-2, XF4U-3, X/FG-3 USN(XF6F-2) USN 151XP-47B USA 151
(XPB3Y-1) USN 151YP-60E, XF6F-6, (FG-4), X/F4U-4 USA/USN 151
F4U-7 USN 151(XP-56) USA 151, 200, 214XTBU-1 USN 151, 247
XP-47B, P-47C,D, XP-47E,F,K, (XF6F-2) USA/USN 151, 200151
PBM-5, XF7F-1, (TBY-1),3, XTB2F-1 USN 151, 200USN 151
C-46G, XC-82, (XC-112), XC-112A, (YC-112A), XC-113, XBTK-1, XF7F-1,1,2, XF8F-1, F8F-1 USA/USN 151, 200
(XP-56, XP-59) USA 200, 247XC-123 USA 151None USN 151None USN 151
Page 131 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-2800-25 P&WR-2800-26 P&W
XR-2800-27 P&WR-2800-27 P&WR-2800-27 FordR-2800-28 P&W
XR-2800-29 P&WYR-2800-30W P&WR-2800-30W P&WR-2800-31 P&WR-2800-31 Ford
R-2800-32W P&WR-2800-32W P&WR-2800-33 P&WR-2800-34 P&W KC
R-2800-34A P&W KC
R-2800-34W P&W KCR-2800-34W4 P&W KCR-2800-34WA P&W KC
R-2800-35 P&WR-2800-36 P&W
R-2800-36W P&WR-2800-37 P&W
R-2800-38W P&WR-2800-39 P&WR-2800-40 P&W
R-2800-40W P&WR-2800-41 P&W
R-2800-42W P&WR-2800-43 FordR-2800-44 P&W
R-2800-44W P&WR-2800-45 P&WR-2800-46 P&W
R-2800-46W P&WR-2800-47 P&WR-2800-48 P&WR-2800-49 P&WR-2800-50 P&W
R-2800-50A P&WR-2800-51 Ford
R-2800-51M1 FordR-2800-52W P&WR-2800-52W Nash
R-2800-52WA P&WR-2800-53 P&WR-2800-54 P&WR-2800-55 P&WR-2800-57 P&WR-2800-57 P&W KCR-2800-57 Chevrolet
ServiceAircraft DataSource
USA 151, 200(PV-2) USN 151, 247XF6F-4 USN 200
XA-26,A,B, A-26B,C, XA-39, XB-28A, XF7F-1 USA/USN 151USN 151
(SB2C-6) USN 151XP-56 USA 151, 200, 247
(F7F-5), XF8F-2 USN 151, 244, 247(F7F-5), F8F-2, (XF8F-3) USN 151, 247
B-34,A,B, PV-1,2,3 USA/USN 151USA/USN 151
X/F4U-5 USN 151F4U-5 USN 151, 247None USA 151, 200
XC-46B, C-46F, XC-82, PBM-5, RM-1, C-3A USA/USN 151, 200None 151
XA-26D, XF15C-1, F7F-3,4, F8F-1/2, (F3M-1), XTB3F-1, XTBM-3, XAF-1, XBTK-1 USA/USN 151RM-1G USCG 247None 151
XP-47B USA 151, 247None USN 151
R4Q-2 USN 246XA-32,A USA 151
None USN 151B-26A,B, XB-26D USA 151, 247
(F3M-1) USN 151USN 151
B-26B(-2 only?),F USA 151, 247F4U-4B USN 151, 247
AT-23A,B, B-26B-1,3,4,10-75,C,E,F,G, XB-26D,H, C-46. JM-1,2 USA/USN 151, 247USA 151, 247
X/AJ-1, K/A-2A USN 151None USA 151
USN 151XTB3F-1,1S, 2S, XAF-1S, (AF-1S/W), AF-2S/W USN 151, 247
Warwick I, IV RAF 151, 200XTB3F-1S, AF-2S/W, 3, AJ-2 USN 151
XA-37 USA 151X/HSL-1, HR2S-1/W, H-37A USN/USA 151
HSL-1 USN 151, 247C-46A,D,E,F,G, XC-46A,C, (XC-82), NA.98X USA 151, 247
C-46 series 151A-26A, R/B-26K, C-118A,B, C-131D, T-36A, R6D-1, R4Y-1,2 USA/USN 151
USA/USN 151151
(X/P-60A), XP-60C USA 151, 247X/HR2S-1, H-37A/B USN/USA 151
(XP-60F) USA 151, 247XP-47J, X/Y/P-47M, X/P-47N, XP-61D USA 151
USA 151USA 151
Page 132 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2800-59 P&WR-2800-59 FordR-2800-61 P&WR-2800-63 P&WR-2800-63 FordR-2800-65 P&WR-2800-65 NashR-2800-67 P&WR-2800-69 P&WR-2800-71 FordR-2800-73 ChevroletR-2800-75 FordR-2800-77 ChevroletR-2800-79 FordR-2800-81 P&W KCR-2800-83 Chevrolet
R-2800-83A ChevroletR-2800-83W Chevrolet
R-2800-83WA ChevroletXR-2800-85 ChevroletR-2800-85 Chevrolet
R-2800-85A ChevroletR-2800-87 P&WR-2800-89 P&WR-2800-91 P&WR-2800-93 P&W
XR-2800-95 P&WR-2800-97 P&W
R-2800-99W P&WR-2800-99W NashR-2800-101 P&W
R-2800-103W P&WR-3350-1 WrightR-3350-2R-3350-3R-3350-4R-3350-5R-3350-6R-3350-7R-3350-8R-3350-9
R-3350-10R-3350-11R-3350-12
XR-3350-13R-3350-14
XR-3350-15XR-3350-16XR-3350-17R-3350-18
XR-3350-19
ServiceAircraft DataSource
P-47C,D, XP-47E,L USA 151, 200USA 151
XP-47J, (P-47J) USA 151, 247P-47D,G, XP-47L USA 151, 247
USA 151XF-15, P-61A,B,G XP-61B,E, F2T-1 USA/USN 151
USA 151None USA 151None USA 151
A-26B,C, XA-26C, XFA-26C, JD-1 USA/USN 151, 247P-47N, P-61C, XP-61F, X/F-15A USA/USN 151C-46A,D,E,F,G, XC-113, R5C-1 USA/USN 151, 247
C-123B?, P-47N, P-61C, XP-61D, T-29A USA 151, 247A-26B,C, XA-26C, XFA-26C, JD-1 USA/USN 151, 247
P-47N, P-61C, XP-61D, T-29A USA 151XA-26D,E,F, (A-26D,E), XC-46B, XC-69E, XC-123 USA 151
151151
AU-1, X/F4U-6 USN 151XC-112A USA 151C-82A,N USA 151, 200C-82A USA 151
(P-47M,N) USA 151, 200(A-26) USA 151, 200
(C-46, C-82) USA 151None USA 151C-118 USA 151
XC-123, T-29A,B USA 151, 247
C-123B,J,K, YC-123B,D,E,H, (C-123H), (VC-123C), C-131A,B, T-29C,D USAF 151C-123B, C-131A,B, T-29C,D USAF 151
T-36A USAF 151, 247YB-26K, C-131B,D,E,F,G USAF 151
USA 200, 212
None USA 200, 212XP4Y-1, XPB2M-1, (XPB3Y-1) USN
XB-19, XBLR-2, XB-29? USA 186 sp09, 200, 212
USA 200, 212(XA-40), JRM-1, (XSB3C-1), X/P2V-1, XP4Y-1, (PBM-4) USN
USA 200, 212XPBB-1 USN(XA-23) USA 200, 212
X/YA-31C, XB-29, (XB-30), (XB-31), X/YB-32 USA 200, 212XSB2D-1, SB2D-1, XBTD-1, BTD-1, XBTD-2 USN
USA 200, 212XF14C-2,(3) USN
YA-31C, XP-62, (P-62A) USA 200, 212XPB2M-1 USN
YA-31C, B-29 USA 200, 212
Page 133 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-20R-3350-21
R-3350-21AR-3350-22R-3350-23R-3350-23 Dodge
R-3350-23AR-3350-23A DodgeR-3350-23BR-3350-24
R-3350-24WR-3350-24WA
R-3350-25R-3350-26
R-3350-26WR-3350-26WAR-3350-26WA ChevroletR-3350-26WBR-3350-26WB ChevroletR-3350-26WCR-3350-26WD
R-3350-27R-3350-28R-3350-29
YR-3350-30WR-3350-30W
R-3350-30WAR-3350-30WB
R-3350-31R-3350-32
R-3350-32WR-3350-32WA
R-3350-33R-3350-34R-3350-35
R-3350-35AR-3350-36
R-3350-36WR-3350-36WA
R-3350-37R-3350-37AR-3350-38R-3350-39R-3350-40R-3350-41R-3350-42
XR-3350-43R-3350-44R-3350-45R-3350-47R-3350-49R-3350-51
ServiceAircraft DataSource
YB-29, B-32, C-97 USA 186 sp09, 200, 212YB-29, B-29 USA 200, 212
B-29,A,B, XB-29E, B-32, XC-97, F-13,A USA 186 sp09, 200, 212USA 200, 212, 371
B-29 USA 186 sp09, 200, 212, 371USA 200, 212, 371
B-29, B-32 USA 200, 212XBT2C-1 USN
X/BT2D-1, X/AD-1, X/P2V-2 USNJRM-3 USN
USA 200, 212XP5M-1, XTB3F-1 USN
X/AD-2, X/AD-3, BT2D-2, P2V-3, XTB3F-2 USNX/AD-4, X/AD-5, AD-6, XP2V-4 USN 371
371X/AD-7 USN 371
371USN
X/AD-7 USAF/USNNone USA 200, 212
USA 200, 212371
P2V-4,5,6 USN 317, 371P5M-1 USN 317, 371
USN 317, 371USA 200
RB-69A, P2V-5, Y/P2V-7, XP6Y-1 USN 317M.270, P5M-2 USN 317
USA 200C-121C,D,E,K,L,M,N, PO-2W, R7V-1, WV-1,2,3 USAF/USN 317
C-69, (A,B,D) USA 200C-69C USA 200
AP-2E, RP-2E USA 317P2V-6, R4Q-2 USN
YA-31C USA 200USA 200, 212
C-121, W2V-1 USAF/USN 317USA 200, 212
B-29 USA 200, 212C-121K,L,M,N, PO-2W, WV-2 USN
XA-38 USA 200, 212
USA 200, 212(B-29) USA 200, 212(B-29) USA 200, 212
(B-29), B-29B USA 200, 212
Page 134 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-53R-3350-55R-3350-57R-3350-57 Dodge
R-3350-57MR-3350-57AR-3350-57A Dodge
R-3350-57AMR-3350-59
R-3350-59AR-3350-61R-3350-63R-3350-65
XR-3350-65AR-3350-67R-3350-69R-3350-71R-3350-73
YR-3350-75R-3350-75R-3350-77R-3350-79R-3350-81R-3350-83R-3350-85R-3350-85 ChevroletR-3350-87R-3350-89
R-3350-89AR-3350-89BR-3350-91
R-3350-91AR-3350-93
R-3350-93AR-3350-93BR-3350-95W
R-3350-999TC18-EA2R-3350-749C18-BD1
R-3350-BDXR-3640-1 WrightXR-4090-1 WrightR-4090-3 WrightH-4240 Wright
XR-4360-1 P&WXR-4360-2 P&WR-4360-2
R-4360-2AR-4360-3
XR-4360-4YR-4360-4
R-4360-4
ServiceAircraft DataSource
(B-29) USA 200, 212(B-29) USA 200, 212
B-29,A, YC-97, F-13A USA 200, 212, 371USA 200, 212, 371
B-29 USAFB-29, YC-97 USA 200, 212, 371
USA 200, 212, 371B-29 USAF
B-29A USA 200, 212USA 200, 212USA 200, 212USA 200, 212
B-29 USA 200, 212USA 200, 212USA 200, 212USA 200, 212USA 200USA 200
C-121A USAFC-121A,B, PO-1, WV-1 USAF/USN
371
USAFYC-119F,H, C-119(E),F,G,J, R4Q-2 USAF/USN 317, 371YC-119F,H, C-119(E),F,G,J, R4Q-2 USAF/USN 317, 371
C-119(E),F,G, R4Q-2 USAF/USN 317YC-123F,G, YC-134,A USAF
AC-119G USAF 218RC-121D, C-121C,G,J, R7O-1, R7V-1 USAF/USN 317, 371
C-121C USAF
AC-119K USAFYC-119K USAF 40
USAF 329(XC-46K),L USA
None USA AFPPLNone USA 200None USA 200None
XA-31B USA 5,183None USN 183
XBTM-1, F2G-1,2 USN 183XBTM-1, F2G-1,2 USN 183
(XP-71,XP-72) USA 183, 200XAM-1, XBTM-1 USN
USN 183
AM-1, BTM-1, X/F2G-1,F2G-2, JRM-2,3, XP4M-1, XC-82B, X/C-119A USA/USN 183
Page 135 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-4360-4AR-4360-4TR-4360-4W
R-4360-4WTR-4360-5R-4360-6
XR-4360-7XR-4360-8R-4360-8AXR-4360-9R-4360-9T
XR-4360-10XR-4360-11R-4360-12
R-4360-12AXR-4360-13R-4360-14
XR-4360-15R-4360-16R-4360-17R-4360-18R-4360-19R-4360-20
R-4360-20WR-4360-20A
R-4360-20ATR-4360-20WAR-4360-20B
R-4360-20WBR-4360-20C
R-4360-20WCR-4360-20WDR-4360-20TR-4360-21
R-4360-22WR-4360-23R-4360-24R-4360-25
XR-4360-27R-4360-27
XR-4360-29R-4360-31
XR-4360-33R-4360-35
R-4360-35AR-4360-35BR-4360-35CXR-4360-37XR-4360-39XR-4360-41R-4360-41
R-4360-41A
ServiceAircraft DataSource
XF-11, Hughes H-4 USA 183AM-1 USN 183AM-1 USN 183
XB-36 USA 183, 200USN 183USA 183
XTB2D-1 USN 183USN 183
XA-41 USA 183, 200USA 183
XF8B-1 USN 183USA 183USN 183USN 183
(XP-71), XP-72 USA 183, 200, 317XBTC-1,2 USN 183
C-74 USA 183
XB-35, YB-35,A USA 183XR6O-1 USN 183
XP-72, (P-72) USA 183, 200, 317C-119B,C, (YC-119D), (YC-128A), XC-120, R4Q-1 USA/USN 183
USA/USN 183XC-120, X/P4M-1 USA/USN 183
C-119B,C, (YC-119D), C-124A, (YC-128A), R4Q-1 USA/USN 183USN 183USN 183USN 183USN 183
XB-35, YB-35,A USA 183XR60-1, XR6V-1 USN 183
(XP-71) USA 183JRM-2 USN 183
XB-36, YB-36, YB-36A, B-36A, XC-99 USA/USAF 183, 200USA AFPPL
X/C-74 USA/USAF 183(XB-44) USA 183, 200
XF-11, XF-12,A USA/USAF 183XB-44 USA/USAF 183
(B-29D), XB-44, B-50A,B,D,E,F,G,K, (XF-12) USA/USAF 183Y/C-97A,B, C-97C,D, YC-124A USA/USAF 183
B-50H, KC-97E USA/USAF 183, 247K/C-97E USA/USAF 183
(XF-11A), (XF-12) USA/USAF 183USA/USAF 183
B-36B USA/USAF 183B-36B,D, RB-36D,E, XC-99 USA/USAF 183, 200, 247
USA/USAF 183
Page 136 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-4360-43R-4360-43R-4360-45R-4360-47R-4360-49
R-4360-49AXR-4360-51R-4360-51R-4360-53R-4360-53 FordR-4360-55R-4360-57R-4360-59
R-4360-59AR-4360-59A FordR-4360-59BR-4360-59B FordR-4360-61R-4360-61 FordR-4360-63R-4360-63 Ford
R-4360-63AR-4360-63A FordR-4360-63BR-4360-65
R-4360-TSB1-GXR-7755-1 LycomingXR-7755-3 LycomingXR-7755-5 Lycoming
Rotating Combustion Chamber (Wankel)YRC-180-2 Curtiss-Wright
Two-Row Inline (V)V-032 Andover
V-032DXV-105-2 KiekhaeferV-105-2V-720 Wright
V-1008 ContinentalV-1150-1 CurtissV-1150-3V-1150-5V-1150-7V-1150-9V-1237 PackardV-1400 CurtissV-1400 CurtissV-1410 Engineering Division
GV-1410 AllisonV-1410-1 Allison
XV-1430-1 Continental
ServiceAircraft DataSource
(YB-50C, R/B-54A) USAF 247(YB-50C, R/B-54A, F-12A) USAF 183, 247
XB-35, YB-35/A USAF 183XB-35, YB-35/A USAF 183C-74, YC-124 USAF 183
C-74 USAF 183(Y/B-36C) USAF 183(Y/B-36C) USAF 183
B-36D,F,H,J, RB-36D,E,F,H USAF 183USAF 183
(B-36) USAF 183(B-36) USAF 183
USAF 183USAF 183USAF 183
C-97F,G,H, K, L USAF 183USAF 183USAF 183USAF 183USAF 183USAF 183
C-124C USAF 183C-124C USAF 183
C-97A,C, KC-97E USAF 183F4U-1WM USN
None USA 200None USA 200None USA
USN
USAFUSAF
XKD6G-2 USNX/KD6G-2, XQM-40A, MQM-40A USNAT-1, AT-2, AT-3, X/AT-4, PT-1 USAAF
USAX/P-1,A USA 200
A-3,A, P-1B,D,E,F, X/P-5 USA 200A-3B, XBT-4, O-1B,C,E,F, X/Y1/O-1G, P-1C, P-5 USA 200
(O-1D) USA 200USA 200
USA/USN(XNO-1), X/P-2 USA 224
R3C-1,2 USN 376USA 167, 248
XCO-6C,(A), XCO-7B USA 167, 248XCO-6C, (XLB-3), XCOA-1, P-1 test USA 167, 248
USA 200
Page 137 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1430-1 ContinentalV-1430-3 ContinentalV-1440 CurtissV-1440 Continental
V-1460-1 Curtiss-WrightV-1460-3 Curtiss-WrightV-1500 CurtissV-1510 CurtissV-1550 Curtiss
GV-1550 CurtissV-1560-1 Wright
V-1570-1 CurtissV-1570-3V-1570-5V-1570-7V-1570-9
V-1570-11V-1570-13V-1570-15V-1570-17V-1570-19V-1570-21
V-1570-23
V-1570-25V-1570-27V-1570-29V-1570-31V-1570-33V-1570-35V-1570-37V-1570-39V-1570-41V-1570-43V-1570-45V-1570-47V-1570-49V-1570-51V-1570-53V-1570-54V-1570-55V-1570-57V-1570-59V-1570-61SV-1570
V-1650-1 AllisonV-1650-2 AllisonV-1650-3 AllisonV-1650-5 Allison
ServiceAircraft DataSource
(Bell 13) USA 214(Bell 13) USA 214
R3C-1/2? USN
XO-10, XOA-1A, X/OA-2 USAXP-17 USAR3C-4 USN
R3C-4? USNXO-13A, XP-6A, R3C-4 USA/USN AFPPL, 316
316(XP-18), (XP-19) USA
(XA-5), (Y1A-9), XO-13,A, O-13B, Y/O-13C, XO-16, Y/O-23, XO-30, XP-6,A,B, XP-7, (P-7) USA 200
USA 200XB-1B, O-25 USA 200
XB-2, B-2,A, 0-25A,B, YO-31 USA 200XO-16, XO-27, (XO-30) USA 200
X/Y1/O-26, Y1O-33, YO-34 USA 200USA 200
XP-9, XP-10 USA 200Y/P-6 USA 200
USA 200USA 200
XA-8, XB-8, X/P-6A, (P-6C), X/P-6D, X/P-6E, XP-6F, X/Y/Y1/P-22, XP-23, YP-24, (Y1P-24) USA 200
XB-7, X/Y1/P-16, PB-1, XO-25A, O-25C, Y/Y1/O-27, XO-27A, XO-31, Y/O-31B, XO-35, YOLR-35, XO-36, O-39, Y1O-41 USA 200
XA-7, (Y1A-9, YA-9), Y1B-7, YB-8, YP-23, Y1P-25 USA 200Y1B-9 USA 200
Y1A-8, YA-8, A-8 USA 200USA 200USA 200USA 200USA 200USA 200USA 200USA 200USA 200USA 200
X/P-6G, XP-6H USA 200XP-31, XY/Y/O-31A, XY/Y/Y1/O-31C, Y1/O-35, Y1/O-43 USA 200
XP2H-1 USNP-6F USA 200
Y1A-8A, A-8A,(B), Y1A-11, P-30, PB-2 USA 200A-11, O-43A USA 200
P-30A, PB-2A USA 200YO-13D USA
BT-1, C-1,C, COA-1, OA-1,A,B,C, XO-1, XO-2,B,E, O-2,A,B,C,D,E,H,J,K, (XO-4), O-5, X/O-6, XO-11, O-11,A USA 200
OL-4 USNO-1A, XLB-5, LB-5, LB-5A USA 200
C-1A USA 200
Page 138 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1650-7 AllisonV-1650-9 Allison
V-1650-11 AllisonV-1650-13 AllisonV-1650-1 PackardV-1650-3 PackardV-1650-3 Continental
XV-1650-5 PackardV-1650-7 PackardV-1650-7 ContinentalV-1650-9 PackardV-1650-9 Continental
V-1650-9A PackardV-1650-11 PackardV-1650-13 PackardV-1650-15 PackardV-1650-17 PackardV-1650-17 ContinentalV-1650-19 Packard
XV-1650-21 PackardXV-1650-23 PackardV-1650-23 PackardV-1650-25 Packard
V-1650-209 PackardV-1650 Ford
XV-1650 FordXV-1650 Ford
GV-1710-A AllisonXV-1710-1 AllisonXV-1710-2 AllisonXV-1710-3 AllisonYV-1710-3 AllisonXV-1710-4 AllisonYV-1710-4 AllisonXV-1710-5 AllisonYV-1710-5 AllisonXV-1710-6 AllisonV-1710-6 Allison
XV-1710-7 AllisonYV-1710-7 AllisonXV-1710-9 AllisonYV-1710-9 AllisonV-1710-11 Allison
YV-1710-13 AllisonXV-1710-15 AllisonXV-1710-17 AllisonV-1710-17 AllisonV-1710-19 AllisonV-1710-21 AllisonV-1710-23 AllisonV-1710-25 AllisonV-1710-27 Allison
ServiceAircraft DataSource
USA 200USA 200USA 200
COA-1, OA-1A, B?,C?, OL-5? USA/USCG 200YP-40F, P-40F,L, XP-60 USA 317
XP-51B,D,F, P-51B/C, XP-60D, XP-78, F-6C USA 200, 317USA 317
(XP-63B) USA 317P-51B,C,D,K, (P-51E), XP-51F, XP-81, F-6D,K USA 317
P-51B,C,D,K USA 317P-51H USA 317P-51H USA 317
P-51D,M USA(P-51L), (XP-82) USA 317
(P-51) USA 317(P-63) USA 317P-51D USA 317
USA 317USA 317
(XP-82) USA 317XP-82 USA
XP-82,B,C,D USA 317XP-82,B,C,D USA 317
(XC-115) USAUSA
None USA 317None USA 317
USN 167, 319USA 167USN 167
XB-16 USA 167USA 167USN 167USN 167USA 167USA AFPPL
XFL-1 USN 167(FL-1) USN 167
USA 167XA-11A USA 167
USA 167XFM-1 USA 167
XP-37, XP-38 USA 167XFM-1 USA 167XP-38 USA 167XP-39 USA 167
(YP-39) USA 167XP-40 USA 167Y/P-37 USA 167
YFM-1,A USA 167USA 167
Y/P-38, XP-38A, P-38D,E, F-4, F-5A, P.322-II USA 167
Page 139 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-29 AllisonV-1710-31 AllisonV-1710-33 AllisonV-1710-35 AllisonV-1710-37 AllisonV-1710-39 AllisonV-1710-41 AllisonV-1710-43 AllisonV-1710-45 AllisonV-1710-47 AllisonV-1710-49 AllisonV-1710-51 AllisonV-1710-53 AllisonV-1710-55 AllisonV-1710-57 AllisonV-1710-59 AllisonV-1710-61 AllisonV-1710-63 AllisonV-1710-65 AllisonV-1710-67 Allison
XV-1710-69 AllisonXV-1710-71 AllisonV-1710-73 AllisonV-1710-75 AllisonV-1710-77 Allison
XV-1710-79 AllisonV-1710-81 Allison
V-1710-81A AllisonV-1710-83 AllisonV-1710-85 AllisonV-1710-87 AllisonV-1710-89 Allison
V-1710-89A AllisonV-1710-91 Allison
V-1710-91A AllisonV-1710-93 AllisonV-1710-95 AllisonV-1710-97 Allison
V-1710-97A AllisonV-1710-99 Allison
V-1710-99A AllisonV-1710-101 Allison
XV-1710-103 AllisonXV-1710-105 AllisonV-1710-107 AllisonV-1710-109 Allison
V-1710-109A AllisonXV-1710-111 AllisonV-1710-111 Allison
XV-1710-113 AllisonV-1710-113 AllisonV-1710-115 Allison
ServiceAircraft DataSource
Y/P-38, XP-38A, P-38D,E, F-4, F-5A, P.322-II USA 167(YP-39A) USA 167
XP-40,G, P-40,A,B,C,G, P-322 USA 167(YP-39A), P-39C/D/F, (P-45), P-400 USA 167
YP-39, XP-39B USA 167P-40D,E, XP-46,A , XP-47,A, X/P-51, F-6A USA 167
YFM-1B USA 167USA 167
(XP-60) USA 167XP-39E, (P-39E), XP-63, (X/P-76) USA 167
P-38F, F-4A, XF-5D USA 167P-38F,G, F-5A USA 167
P-38F, F-4A, XF-5D USA 167P-38F,G, F-5A USA 167
(XP-53) USA 167P-39J USA 167
(P-40J) USA 167P-39D-2,K,L USA 167
(P-63) USA 167USA 167
None USA 167None USA 167
X/Y/P-40K USA 167X/P-38K, XP-60A,(B), (P-60A) USA 167
X/P-38K USA 167P-38 2 seat USA 167
XP-40M, P-40M,N,R, P-51A, F-6B USA 167USA 167
P-39M USA 167P-39N,Q USA 167A-36A USA 167
P-38H,J,L, XB-38, F-5B,C,E,F USA 167USA 167
P-38H,J,L USA 167USA 167
XP-63A, P-63A,C, XA-42 USA 167XP-55, P-63A USA 167
P-82A USA 167USA 167
P-40N-20/35 USA 167USA 167
XP-40Q USA 167XB-42 USA 167
USA 167USA 167
P-63D,E USA 167RP-63? USA 167
USA 200P-38L,M, F-5E,F,G USA 167
USA 200P-38L,M, F-5E,F,G USA 167
P-40N-40 USA 167
Page 140 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-115A AllisonV-1710-117 Allison
XV-1710-119 AllisonV-1710-119 Allison
XV-1710-121 AllisonXV-1710-123 AllisonXV-1710-125 AllisonV-1710-125 AllisonV-1710-127 Allison
XV-1710-129 AllisonV-1710-129L AllisonV-1710-129R AllisonXV-1710-131 AllisonV-1710-131 Allison
XV-1710-133 AllisonXV-1710-135 AllisonV-1710-135 Allison
XV-1710-137 AllisonXV-1710-137L AllisonXV-1710-137R Allison
V-1710-139 AllisonV-1710-141 AllisonV-1710-143 AllisonV-1710-145 AllisonV-1710-147 AllisonV-1710-149 AllisonV-1710-C15 AllisonV-1710-E4 Allison
V-1800 Curtiss-WrightV-1950 Wright
XV-3420-1 AllisonV-3420-1 AllisonV-3420-2 AllisonV-3420-3 Allison
XV-3420-5 AllisonXV-3420-7 AllisonXV-3420-9 Allison
XV-3420-11 AllisonV-3420-11 Allison
XV-3420-13 AllisonV-3420-15 AllisonV-3420-17 Allison
XV-3420-19 AllisonXV-3420-21 AllisonXV-3420-23 AllisonXV-3420-25 AllisonXV-3420-27 AllisonV-3420-29 Allison
XV-3420-31 AllisonDV-6840 Allison
Three-Row Inline (W)
ServiceAircraft DataSource
USA 167, 200P-63C USA 167
XP-51J, XP-82A USA 167(P-82A) USA
XP-40Q-2/3 USA 167USA 167USA 167
XB-42,A USA 167(XP-63H) USA 167
XB-42 USA 200XB-42 USA 167
USA 167USA 167
XC-114, YC-116 USA 167XB-42A, L-39, P-39E USA 167
USA 167P-63F, RP-63G USA 167XB-42A, L-39 USA 200XB-42A, L-39 USA 167
USA 167(P-82B) USA 167(P-82B) USA 167
P-82E,F,G,H, XP-51J USA 167, 317P-82E,F,G,H USA 167, 317
USA 167USA 167
P.322-I USAP.400 USA
USN(XO-3) USA
(XBLR-3) USA 167None USA 167
PT-8 Boat USN 167None USA 167XP-75 USA 167
XP-67 (FM-1?) USA 167None USA 167
XB-19A, XB-39, XP-58 USA 167(B-39) USA 167XP-58 USA 167XB-39 USA 167
XB-19A XB-39 USA 167XB-19A XP-75 USA 167
XP-75 USA 167X/P-75A USA 167
XB-19A, (P-58) USA 167P-58 USA 167P-75 USA 167None USA 167
USA AEHS 2014
Page 141 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
W-2779 Engineering Division
Four-Row Inline (X)X-1670 WrightX-2775 PackardX-3130 P&W
X-3420-1 AllisonX-3420-3 AllisonX-4240 WrightX-4520 AllisonX-5340 Engineering Division
UndesignatedC-10 Homelite
C-13A WaukeshaE-005 ?
N-1610 ?O-861-C ?
115-I Alfa-RomeoAirship Diesel Allison
U-250 AllisonAs.10C Argus
Cheetah IX Armstrong SiddeleyCheetah X Armstrong Siddeley
IV BMW132 BMW
Hercules BristolHercules BristolJupiter Bristol
Jupiter VIIF BristolMercury XII BristolMercury XX Bristol
Mercury XXX BristolPegasus XVIII Bristol
Perseus XII BristolCirrus II Cirrus
A50 ContinentalA65-7 ContinentalA65-8 ContinentalA75-9 ContinentalA-80 Continental
C-85-8FJ ContinentalC-90-8FJ ContinentalC-90-12 Continental
C-90-12F ContinentalC-145-2H Continental
E-185 ContinentalE-225 Continental
Hyper #1 ContinentalContinental
Hyper #2 ContinentalBR-1 CRM
ServiceAircraft DataSource
USA
USN 163Mercury Racer USN
USN(XBLR-2, XBLR-3) USA 167
None USA 167None USNNone USA 167None USA
USAF 329USAF 329USAF 329USAF 329USAF 329
SIA S.2S USNNone USN 167, 241
USA 167Bf108B, XC-44 USA/USN 5
Anson I USA 286Oxford I, II USA 286
He.22 USA 5C-79 USA 5
Beaufighter IF USABeaufighter VIF USA
Ro.1 USA/USNBulldog IIA USN 286Lysander II USA
Master II, Lysander IIIA USABlenhiem V, Lysander IIIA USA
Wellington I USALysander III USA
XDH-60 USN 14Aeronca 50-C USA
L-2H, L-3J USAL-2C, L-3E,F USA
UC-83,B, L-4E,F USAV.173 USN
USAF 329USAF 329
X-28A USNXAZ-1 USA 174T-35A USAF
USAF 329USAF 329
None USA 214None USA 214None USA 214
YEZ-2A USN
Page 142 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
RC 2-60 Curtiss-Wright440 Cuyuna
Gipsy I DeHavillandGipsy III DeHavilland
Gipsy Major DeHavillandGipsy Minor DeHavilland
Gipsy Queen II DeHavillandGipsy Queen III DeHavilland
DA-150 Desert Aircraft447-C Fairchild
P.24 Monarch FaireySF2-350 Fichtel & Sachs
G2G Ford4AC-199-E3 Franklin6A4-165-B3 Franklin6AC-264F2 FranklinDyad 220 Herbrandson
Dyad 280 B Herbrandson8Ab Hispano-Suiza9Qa Hispano-Suiza
12Y45 Hispano-Suiza12Ycrs Hispano-Suiza18-S Hispano-Suiza
GX-57 Honda61 K&B
KB7ATS KiekhaeferMercury Mk.55 Kiekhaefer
K-5 KinnerR-5 Kinner
Kinney-Noble150D2-B L.A.E
L2400EB1.AD Limbach4300 McCulloch
4318E McCullochTC6150-J-2 McCullochB-4 Pirate Menasco
B-6 Bucaneer MenascoC-4 Menasco
C-6S-4 Super Buccaneer MenascoC-6S-5 Super Buccaneer Menasco
D-4 Pirate MenascoD-4B Super Pirate Menasco
180 Mercedes-Benz151 Miller
Moto GuzziSabre Chrysler
Sabre IIA NapierH-56 NelsonH-59 Nelson
H-63A NelsonH-63B Nelson100SS Quadra
ServiceAircraft DataSource
Q-Star USA 298YCGM-121A, YCQM-121A, YCEM-138A USAF 149
DH.60M USA/USN 286XDH-80A, DH.80A USA/USN 286
DH.82A USA 14DH.94 USA 13
Proctor I, II, III USADH.89A,B USA 13
MQM-170B USA(XPT-4). XN2B-1 USA/USN 5
Fairey Battle USA 286, 315RQ-2B USA/USN 149None USA 317
AT-19B, L-9B USAYT-35 USAF
N-1M, (N-9MB??) USAXBQM-106A,B,C USAF 149
YMQM-105A 173M.S.43ET.2 USA 5
M.S.234 USA 40USA 317
None USA/USN 242USN 382
XMQ-17A USMC 149FQM-117A USA 149
USN NACAYHO-2 USA
NT-1, N2Y-1 USNPT-160K USN
USN 241RQ-15A USN 149TG-11A USAFKDG-1,2 USN
X-25A,B, XAO-2 USA/USNMQM-61A USA 149Hoff H-71D USA
XSL-2 USNRearwin Speedster USN
N-9M, N-9MA USACW-24B USAPT-20B USA AFPPL, 5
USA AFPPLMQ-5B USA 149
USA AFPPLBQM-155A, RQ-5A 149(P-47), (Typhoon) USA 169
Typhoon IB USAYHO-1E, VZ-1 USAXRON-1, VZ-1 USA/USN
XAO-3 USAPrinceton X-3A USA 298
BQM-147A USA/USMC 149
Page 143 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Power ProductsPower Products
Bengali 6 RenaultBengali 6Q-09 Renault
RighterRighter
Sidewinder RighterGriffon III Rolls RoyceGriffon 66 Rolls RoyceMerlin II Rolls RoyceMerlin III Rolls RoyceMerlin XX Rolls RoyceMerlin 28 PackardMerlin 31 PackardMerlin 61 Rolls RoyceMerlin 76 Rolls Royce
Merlin 113 Rolls RoyceMerlin Rolls Royce
Peregrine I Rolls Royce912 S4 Rotax
914 Rotax914 F Rotax
Ash-621R ShvetsovNoah T. Smith
Centurion 1.7 ThielertCenturion 4.0 Thielert
3W-56 3W Modellmotor3W-150i 3W Modellmotor
AR741-38 UAV Engines Ltd.AR741-1100 UAV Engines Ltd.AR741-1101 UAV Engines Ltd.
AR801R UAV Engines Ltd.50-499 WarnerT-14 Wright
WM-80 Wright-Morehouse
ServiceAircraft DataSource
Princeton X-3A USA 298Princeton X-3B/C USA 298Caudron C.620 USN 19
Caudron C.635M USNRP.1 USA
RP.4/OQ-1 USAOQ-1 USA 160
Spitfire XII USA 40, 295Spitfire PR.XIX USA 295
Hurricane I USADefiant I, II, Hurricane I USA
Beaufighter IIF, Hurricane II USAXP-40F USA 5
F-8 USA 5Mustang X USA
Mosquito NF.30, PR.34 USAMosquito PR.34 USA
XP-51G USA 5, 286Whirlwind USATG-14A USAF 149CQ-10A USA 149MQ-1B USAF 149AN-2 USA 298
USA AFPPLY/MQ-1C USAF 149
RZ-4A USA 149RQ-16A 149
MQM-170A 149RQ-2C 149RQ-7ARQ-7BRQ-6AL-10 USA 5None USA 163
Driggs Dart USA 5
Page 144 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Undesignated 1908-1924
AbadalDragonfly I A.B.C.
Dragonfly IA A.B.C.Gnat I A.B.C.
Mosquito A.B.C.Wasp I A.B.C.
AdlerAL-24 Aeromarine
B AeromarineB Aeromarine
T-6 AeromarineU-6-D AeromarineU-873 AeromarineU-8-D Aeromarine
AeromarineS-12 AeromarineA-1 AlmenA-2 AlmenA-3 AlmenA-4 AlmenA-5 Almen
San Giorgio 4E-145 AnsaldoSan Giorgio 4E-150 AnsaldoSan Giorgio 4E-28 AnsaldoSan Giorgio 4E-28 Ansaldo
8V AntoinetteAnzani
5 Anzani10 Anzani10 Anzani10 Anzani10 Anzani
20B AnzaniArgus
As III O OpelArgus
As IV ArgusArgus
Lynx I Armstrong SiddeleyJaguar I Armstrong Siddeley
AshmusenAustro-DaimlerAustro-DaimlerAustro-DaimlerAustro-Daimler
D35 Austro-DaimlerAustro-DaimlerBasse-SelveBasse-Selve
6-1A Beardmore
Designation Manufacturer
Only 17 built. 32 hp in M-2.Only 1 built. Tested by USA?
Submitted, not tested. Liberty parts.
Initially designated U-841. 17 for Navy.10 for Navy.2 modified from U-8D for Navy. 36 additional cancelled?Army test 1922 Mfr. s/n 1017. 10 for Navy.Not in Navy a/c?2 cancelled? Separate gear assembly.Barrel-type for Army test. Dims for A-1?Barrel-type for Army test. Model I-B.Barrel-type for Army test.Barrel-type swashplate.Barrel-type for Army test. Not built?
Derated for airship use?Harry Harkness loan of Antoinette VII.Italian-built?Gnome-Anzani?
Italian-built?Italian-built?Italian-built?
License-built As III.
?
Navy test. O-8, O-12, both?Beardmore license-built.
?
License-built Austro-Daimler.
Notes
Page 145 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Beardmore6-2B Beardmore185 Becker
B.R.1 BentleyB.R.2 BentleyBz I Benz
Bz III BenzBz IIIa BenzBz IV Benz
BenzBz IIIbo BenzBz IIIbv Benz
Bz V BenzBz Vb Benz
VI BenzVIv Benz
BHPBinetti
IIba B.M.W.IIIa B.M.W.IV B.M.W.6 B.M.W.
BredaBugattiBugatti
16 BugattiCato
ChristoffersonClement BayardClement Bayard
7-Z Clerget9-B Clerget
9-Ba Clerget9-Bc Clerget9-F Clerget9-Z Clerget
Clerget11Eb Clerget11G Clerget16X ClergetC ColomboD ColomboE Colombo
ColomboC-2 ContinentalE-7 Continental
Lucifer CosmosMercury CosmosJupiter CosmosJupiter Cosmos
Hercules CosmosE-4 Curtiss
Notes
License-built Austro-Daimler. Tested by Army c.1913?
Seebacher-built Argus As III?
Probable type. Cancelled.
Reparations.Reparations.?Based on Hispano-Suiza.Based on Hispano-Suiza. IIIb?Supercharged.Supercharged.Supercharged.Supercharged.
Otis Piere.
BMW IIIa? 243 hp Same as above?
U.S. test of original from France.
Cancelled. To be built by Harry Miller?Dirigible. Not 6-cylinderDirigible.
Variable stroke.
160 hp?
Aircraft engine? C2 truck engine?Aircraft engine?
Derated E-4. 2 built?
Page 146 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
E-4 CurtissH/K Curtiss
L CurtissN CurtissO Curtiss
OX Curtiss
OX-2 Curtiss
OX-5 CurtissOX-5 Willys MorrowOX-5 Willys OverlandOXX Curtiss
OXX-2 CurtissOXX-3 CurtissOXX-5 CurtissOXX-6 Curtiss
S CurtissV Curtiss
VX CurtissGeared VX Curtiss
VXX CurtissV2 Curtiss
V2-3 CurtissV2-10 Curtiss
V2-C10 CurtissV-4 CurtissV-6 CurtissV-7 CurtissAB CurtissC-6 CurtissK-6 Curtiss
D-1200 CurtissK-12 CurtissK-12 CurtissC-12 Curtiss
CD-12 Curtiss
D-12 CurtissD-12A CurtissD-12C CurtissD-12D Curtiss
Inverted D-12 CurtissR-6 CurtissD III Daimler
D IIIa DaimlerD IIIa DaimlerD IV Daimler
D IVa DaimlerDamblancde Dion
De Palma
Notes
?
Proposed, not accepted.
No military use. VX expanded.
Geared.K-6 modified as C-12. Army test mfr. S/n 395 1922.Kirkham design. Half K-12.Further developed as K-12.4 ordered by Navy, 750 to have been ordered. Supercharger. Originally developed as Curtiss D-1200.High compression.Developed Kirkham K-12. Army test.Direct drive. 1 Army/Navy test by Army. 2 Navy.
Developed CD-12. 1192 total D-12 built.Enlarged bore.To V-1150-1To V-1150-3Inverted test at McCook.Experimental. Ricardo supercharged.Reparations.Reparations.
Fan-type?DePalma-Wills design. Ford-built. 2-cycle. W.B.B.?
Page 147 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-4 De PalmaVictory C-6 Dodge Tool
4 Duesenberg4 Duesenberg4 Duesenberg
Bugatti DuesenbergH Duesenberg
H-2 DuesenbergKing Aeronautical Engine Co.King Duesenberg
Attendu Airship Diesel Eastern Engineering Co.W-1 Engineering Division
W-1A Engineering DivisionW-1B Engineering DivisionW-2 Engineering DivisionW-3 Engineering Division
FarmanFarmanFarman
A-10 FiatA-12 FiatA-12 FiatA-12 FiatA-12 Fiat
A-12bis FiatA-14 FiatA-15 Fiat
A-15R FiatA-18 Fiat
San Giorgio FiatFimaFima
Adriatic GallowayAtlantic Galloway
BHP GallowayGoe VI Goebel
GoebelGoe II GoebelGoe III Goebel
7- GnomeB-2 Gnome
Gamma-Gamma GnomeLambda-Lambda Gnome
9-N Gnome9-N Gnome9-N Gnome
9-Nb Gnome9-Nc Gnome
Gnome11- Gnome
GnomeGnome
Notes
2 cycle. Same as above?6-cycle Engineering Division test. 125 rated hp.Direct drive. Walking-beam valve actuation.Geared. Walking-beam valve actuation.Geared, lightened.
2 ordered. 1 reordered as direct-drive. 4 built with geared below? Walking beam.Ordered as geared.Cancelled and transferred to Duesenberg.Cancelled.2-stroke fuel injected diesel. Designed for 125 hp at 1800 rpm.Packard built. 2832 CI from articulated rods on outer banks. 4 spark plugs per cylinder.Parts by Steel Products Engineering Co. Allison add-on gear reducer - not flown.Packard built.Outer articulated rods slightly larger actual displacement. Parts not assembled.Cancelled."No.1"."No.2"."No.3".
Enlarged bore.
BHP modification. Same as below?At least 1 to Army tested c.1920.
MonosoupapeProposed engine, no longer in production, 160 hp to be substituted.Tested, not delivered.
"Shuttlecock". Rotary? Radial?
Page 148 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Gnome
Gnome B-2 General VehicleGnome B-2 Aeronautical Engine Co.
Gnome Pittsburgh Model EngineGnome 9-N General Vehicle
GreenGreenGreenGyro
L GyroA-2 Hall-Scott
A-5 Hall-ScottA-5 Hall-Scott
A-5A Hall-ScottA-5A Special Hall-Scott
A-7 Hall-Scott
A-7A Hall-ScottA-7A Experimental Hall-Scott
A-8 Hall-ScottL-4 Hall-ScottL-6 Hall-Scott
HansaType S Headstrom
II Hiero8-A Hispano-Suiza
8-Aa Hispano-Suiza8-Ab Hispano-Suiza8-Ac Hispano-Suiza8-B Hispano-Suiza
8-Ba Hispano-Suiza8-Bba Hispano-Suiza
8- Hispano-Suiza8-Bc Hispano-Suiza8-Be Hispano-Suiza8-Bec Hispano-Suiza8-Cb Hispano-Suiza8-F Hispano-Suiza
8-Fb Hispano-SuizaV.4A Isotta-FraschiniV.4B Isotta-FraschiniV.4B BianchiV.5 Isotta-FraschiniV.6 Isotta-FraschiniV.6 Isotta-FraschiniV.7 Isotta-FraschiniV.8 Isotta-FraschiniV.9 Isotta-Fraschini
Jaenson
Notes
License-built.License-built.
Proposed U.S. production with General Motors. cancelled.
Navy test 10/8/12. Another? installed in Wright B-2 7/29-8/12/1912.Slide intake.Military use?
Cast-iron pistons.
Al pistons, enlarged bore."L-6" below?Cast-iron pistons.
Al pistons, enlarged bore.
Liberty precursor. Army test c.1919?Liberty cylinders on A-7 type crancase.Liberty cylinders on A-5 type crancase. 10 for Navy.V-arrangement?"Hedstrom" designer of Indian motorcyles and aero engines. 1 in storage 1919. Msn 276.Hieronimus-WarchalowskiType 34.
Type 35.
Motor cannon.
License-built.
Army test 1920.
Page 149 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Joffert4A Kessler6A Kessler
6B-400 KesslerKinner
K-1 KinnerKinner
5RA Kinney-Noble12 Knox
LanciaLancia
A-3 LawranceA-3 ExcelsiorB LawranceJ Lawrance
J-1 LawranceJ-2 LawranceL Lawrance
L-1 LawranceL-2 LawranceL-3 LawranceL-4 LawranceL-4 LawranceL-5 LawranceN Lawrance
N-2 LawranceR Lawrance
R-1 LawranceT-2 Lawrance
Maedler LawranceMaedler Lawrance
Le Maitre & GerardType Z Le Rhone
7 Le Rhone
9-C Le Rhone9-J Le Rhone9-J Le Rhone
9-Jb Le Rhone9-Jby Le Rhone
Le RhoneLe Rhone
9-R Le RhoneLe RhoneLe Rhone
Le Rhone 9C Union Switch & SignalLe Rhone 9C Tampier Union Switch & Signal
Liberty 4B HudsonLiberty 6A Thomas-MorseLiberty 6B Wright
Notes
Navy also?Navy also?Tested by Navy? 6C-400?Below? 60/80 HP. No USN?Experimental. Based on Lawrance L. K-1? No USN?K-2? No USN?Only 5 delivered? Not Kinner. Hydraulic valve actuation.Army test c.8/1919? Navy test.
4.25 x 5.25?500 ordered?Experimental. Developed into L.Experimental. Enlarged R.
50 initially ordered for Navy.Experimental.~6 total L for Navy."L"?~12 built (for Army? L-4?)Separate oil sump.Derated for airships. Splitdorf magneto ignition.Fully Rated. Splitdorf magneto ignition.Dixie magneto. Military use?Experimental.Experimental.Model L cylinders. ~4 built total with below?R with rotary induction system? Not same as Wright R-1. 1 Navy test from Army c.1921.Similar to L-4. For aerial torpedo use.Single test cyliner ordered.4, later 3 complete engines and 1 cylinder above ordered. Fuel injected.
Proposed U.S. production cancelled.
License-built.From rejected parts for training.L-8 rebuilt into 2 L-4.185,200,210,215,230 HP2 to Navy.
Page 150 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
U.S.A.8 Packard
Liberty 8A BuickLiberty 8A Engineering DivisionLiberty 8A Willys OverlandLiberty 8A WintonU.S.A.12 Packard
Liberty 12A
Liberty 12A BuickLiberty 12A CadillacLiberty 12A DuesenbergLiberty 12A FordLiberty 12A LincolnLiberty 12A Nordyke & MarmonLiberty 12A PackardLiberty 12A Trego MotorsLiberty 12A Willys Overland
Liberty 12A
Liberty 12A
Liberty 12ALiberty 12B PackardLiberty 12C PackardLiberty 12E Packard
Liberty 12N PackardLiberty 12N LincolnLiberty 12S PackardLiberty 12 Aeromarine
Liberty 12 Modified PackardLiberty 12 Inverted Engineering DivisionLiberty 12 Inverted AllisonLiberty 12 2-Speed Allison
Liberty 12 Spur Gear AllisonLiberty 24 Engineering Division
GallaudetLorraine-Deitrich
8B Lorraine-Deitrich8Bb Lorraine-Deitrich
Notes
Protoype Liberty 8.
270-330 HP.
Cancelled.Cancelled.Protoype Liberty 12.Derated for airship.
Plus 528 GM (Buick/Cadillac? Olds?)
Cancelled. Order changed to Bugatti.
To Ordnance Dept. for tanks.Cancelled.
Turbosupercharged.
V-1650-1?
Epicyclic gear reduction. 3 gearsets by Allison, 3 by Willys. 3 engines to Navy. 200 ordered by Navy '19 with Allison gearsets, 100 to Army later.Spur gear reduction.Cannon engine. Twin geared crankshafts.
Low compression "Navy" engine. Ordered as 12A.
Training engines from rejected parts.Modified for DT- series.Experimental uprated engine. 1 new build cancelled.Modified to inverted water-cooled. 1 1919, others 1923-26. 12 to Navy.Modified to inverted water-cooled.2-speed spur gear reduction. Turbosupercharged.Spur gear reduction. Updated 12C.2 Liberty 12 on 1 crank.3 Liberty geared to 1 propellor in pod.
Page 151 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
8Bba Lorraine-DeitrichLorraine-Deitrich
12 Lorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-DeitrichLorraine-Deitrich
Mana III MANMana IIIa MAN
8200 MartinMaybachMaybachMaybachMaybach
Mb.IVa MaybachMb.IVa MaybachVL-1 MaybachVL-2 Maybach
4 Mead Engine Co.Miller
M-42 MorehouseMuffly
Murray & TregurthaC III N.A.G.Lion NapierCub NapierUr.II OberurselUr.III OberurselU.IV Oberursel
OpelOpel
O-8 OrloOtis-Piere
1A-258 Packard452 Packard
1A-744 Packard1A-825 Packard1A-905 Packard
1A-1116 Packard
1A-1237 Packard1A-1237 Packard2A-1237 Packard1A-1300 Packard
1A-1300 Modified Packard
1A-1500 Packard1A-1500 Inverted Packard1A-1500 Geared Packard
Notes
High-compression.
Supercharged.
Reparations.Reparations.Navy test c1917.
Dirigible.Reparations. Cancelled.
Airship. At least 8 from German Navy proposed for ZR-3.At least 4 rebuilt as VL-2. C/n 11001,2,3,4,5 delivered in ZR-3, 7,8,9,10 spares.Higher compression Al pistons, heavier crank. At least 19 plus 4+ upgraded VL-1. C/n 110026,27,38 +Tried in Wright B-3 7/2-7/12/1912. Rotary valve. 4.75 bore & 4.5 stroke? 4 x 4.5?Harry Miller. Walking beam.Manufactured by Steel Products Co. 1 Army test?Navy test. Counter-rotary 1 prop on crankshaft 1 on crankcase. 4 1/2 x 5 1/8 c.1917?3 orders. Sea Sled engines?Conrad C.III(nag) License-built.Army test of 3 engines 1922. 2 Navy c.1922.
LeRhone copy.
License-built BMW IIIa modification? Bz IV?Navy test. AKA B-8? 20 ordered for Pensacola hydros?
Single-cylinder test engine for 1A-1551.452? Cancelled?2 completed as 1A-825.Enlarged bore. 2 ordered as 1A-744.905-3? Cancelled?1 modified to and 2 completed as 1A-1237.
Enlarged bore. 40 Army, ~10 Navy (18 in store c.1922 for NM-1 (376)). 320 HP? 1 modified from and 2 ordered as 1A-1116.Derated for airship.Modified 1A-1237.Enlarged, improved 1A-1237. 2 more delivered as 1A-1500.2nd & 3rd 1A-1300 to be completed with larger bore and stroke. Completed with as 1A-1500 below.
2 ordered as 1A-1330. Enlarged bore and stroke.
Page 152 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
2A-1500 Packard2A-1500 Inverted Packard2A-1500 Geared Packard
3A-1500 Packard3A-1500 Inverted Packard3A-1500 Geared Packard
2A-1530 Packard1A-1551 Packard1A-1551 Packard1A-2025 Packard1A-2200 Packard1A-2500 Packard
1A-2500 Geared Packard2A-2500 Packard
2A-2500 Geared Packard3A-2500 Packard
3A-2500 Geared Packard4A-2500 Packard1A-2540 Packard2A-2540 Packard1A-2775 Packard1A-2775 Packard2A-2775 Packard
V12J Panhard-LevassorV12J Panhard-Levassor
Panhard-LevassorPanhard-Levassor
8-Aa PeugeotL41 Peugeot
16AJ PeugeotPeugeotPeugeotPeugeot
Pierce-Arrow1A R.A.F.1B R.A.F.3A R.A.F.4A R.A.F.4D R.A.F.5 R.A.F.
E-6 Rausie8C Renault8C Renault
Renault8Ca Renault8Ca Renault12D Renault
12Da RenaultRenault
8Gc Renault8Gdy Renault12Dc Renault
Notes
Articulated rods. Order for 75, some completed as 3A.
Articulated rods.
Alternate Army designation for 2A-15004 spark plugs per cylinder. 4? prototype engines with LC pistons. Rebuilt as production with HC pistons.4 spark plugs per cylinder. 9? production with HC pistons plus prototypes rebuilt.Enlarged 1A-1116.Modified 1A-2025 with new cylinders. Only right cylinder bank assembled. 4 spark plugs per cylinder.Articulated rods, 6.7604 effective stroke on left bank. Enlarged 1A-1500.
Articulated rods. Order for 175, some completed as 3A.
150 for Navy c.1926.
Supercharged, outside carburreted.Alternate Army designation for 1A-2500Alternate Army designation for 2A-25002A-1500 cylinder blocks. Articulated rods. To X-2775.Supercharged.Supercharged. Articulated rods. Navy tested?
Dirigible.
License-built Hispano-Suiza. Cancelled.
Pusher.Army tests 1922 2 different configurations. At least 1 tested by Navy.Tractor. 94 mm bore? 8Ab? 1 in SC 9, 1 ea in SC 24-28 plus 6 spare(178)? 4 in planes, 4 spares (180)?Pusher. 94 mm bore? 8Ab?
Tractor. British-built?Pusher. British-built?
Derated ?12Gd?12Ge?
Page 153 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
12- RenaultRenault
12Fcx Renault12Fcy Renault12Fe Renault12- Renault12- Renault12- Renault12M Renault12- Renault
R.E.P.6 Roberts
6X RobertsCondor Rolls-Royce
Condor I Rolls-RoyceCondor I Rolls-RoyceHawk I Rolls-RoyceHawk II Rolls-Royce
190 Rolls-RoyceRolls-Royce
Falcon I Rolls-RoyceFalcon II Rolls-RoyceFalcon III Rolls-RoyceEagle I Rolls-RoyceEagle II Rolls-RoyceEagle III Rolls-RoyceEagle IV Rolls-RoyceEagle V Rolls-RoyceEagle VI Rolls-RoyceEagle VII Rolls-RoyceEagle VIII Rolls-Royce
M9 SalmsonSalmsonSalmson
R9 SalmsonA9 Salmson
9RA SalmsonAB9 SalmsonZ9 Salmson
C.U. 9-ZM SalmsonZ9 SalmsonP9 Salmson
AZ9 SalmsonZ18 Salmson
SaunionPacific SiddeleyTiger SiddeleyTwin Siddeley
Puma SiddeleySh.4 Siemens-HalskeSh.5 Siemens
Sh III/a Siemens-Halske
Notes
Derated ?
Tractor. Cannon-type.
Fan-type.2-cycle.2-cycle. Probable type? Installed 5-8/1915.
Only between 1 and 10 built. Not tested by U.S.?Falcon I. Proposed license-built by Pierce-Arrow before 7/1/1918? 500?Falcon III. Proposed license-built by Pierce-Arrow?
C/n 167. Proposed for Paul Schmitt seaplane 1914?
?
Late engines.
Early engine.?
Double Z9.
Ounce?BHP modification.
Reparations.
Page 154 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Sizaire-Berwick1A SPA2A SPA6A SPA
SperryJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static MotorsJohn W. Smith Radial Static Motors
SterlingD-4 SturtevantD-6 Sturtevant5 Sturtevant
5A Type 8 Sturtevant
5A Sturtevant5A 4 1/2 Sturtevant
Dyak SunbeamAmazon I SunbeamGhurka Sunbeam
Cossack SunbeamCossack III SunbeamCrusader SunbeamNubian SunbeamArab I SunbeamArab I AustinArab II SunbeamAfridi Sunbeam
12 SunbeamManitou SunbeamMaori IV SunbeamMatabele SunbeamMohawk Sunbeam
Sikh SunbeamViking SunbeamZulu Sunbeam
Thomas8 Thomas
88 Thomas890 Thomas-MorseV12 Tosi
UnionVan Blerck
Type HS 34 VNVWalker
WeinbergVertical Marine Winton
WisconsinWisconsin
WrightWrightWright
Notes
Army test 1919.Compound auto-ignition engine. 1 ordered not accepted? Cancelled.
Army test.
Sunbeam License? 320/350 HP? As Sunbeam 350 HP 12 below?
Muffled.
1/2 Cossack.
Water-cooled exhaust.
License-built.
Dimensions? Cossack? Sterling License?
Airship.
Side valve.Airship. (Direct drive? 178)W 3-row as Cossack.
2 Issotta-Fraschini on 1 crankcase?
3 orders.Hispano-Suiza cylinder blocks?Army test. Scotch yoke.1 built?Test.
Double 6.License-built Hispano-Suiza. CancelledLicense-built Hispano-Suiza. CancelledLicense-built Hispano-Suiza. Cancelled
Page 155 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Wright
A WrightB Wright
C-1 WrightD-1 WrightD-1 WrightD-2 Wright
E Wright
E-2 WrightE-3 WrightE-4 Wright
E-4A WrightF Wright
Gale Wright
H WrightH Pierce-Arrow
H-2 WrightH-3 Wright
I WrightJ-1 WrightJ-2 WrightJ-3 WrightJ-4 Wright
J-4A WrightJ-4B WrightJ-5 Wright
J-5 WrightJ-6-5 WrightJ-6-7 WrightJ-6-9 Wright
K WrightK-2 WrightM Wright
P-1 WrightP-2 WrightP-2 WrightR-1 WrightR-1 WrightR-1 WrightR-1 WrightR-2 Wright
Simoon WrightT Wright
T-2 WrightT-2B Wright
Notes
License-built Hispano-Suiza. Cancelled
License-built Hispano-SuizaLicense-built Hispano-Suiza. 1/2 A. No military use?License-built Hispano-Suiza. Bolt-on rear reduction gear.License-built Hispano-Suiza. Front integral reduction gear. Motor-cannon.Navy airship.License-built Hispano-Suiza. Geared.
License-built Hispano-Suiza. High compression.License-built Hispano-Suiza. Improved heads, relocated magnetos, adjustable cam timing, triple-geared oil pump, shallow lower crankcase, front camshaft cover oil drain.License-built Hispano-SuizaLicense-built Hispano-SuizaLicense-built Hispano-Suiza. 2 converted from E-4. Increased c/r, high-lift cam.License-built Hispano-Suiza. Geared. No gun provision.As Lawrance L-4. Built for cancelled USN Pony Blimp?
License-built Hispano-SuizaLicense-built Hispano-Suiza. Cancelled.License-built Hispano-Suiza. Relocated magnetos.License-built Hispano-SuizaLicense-built Hispano-Suiza. Chrome steel valves, Stromberg carb, relocated magnetos, improved connecting rods.Lawrance J-1Lawrance J-250 for Navy c.1923.155 for Navy c.1924. Improved cylinder construction.140 for Navy c.1925.
Derated for airship.
To R-790. 300 plus for Navy c.1926.To R-540.To R-760.To R-975.License-built Hispano-Suiza. Baldwin cannon. Vertical crankcase split.License-built Hispano-Suiza. Baldwin cannon. Horizontal crankcase split. Triple-geared oil pump.Model H modified with Liberty-style cylinders, valve train.Small diameter.Larger diameter. Developed into R-1750. 12 ordered for Navy c.1925.Geared. 3 Aeromarine Gear-drive sets.Not same as Lawernce R-1.Rebuilt with Heron Type J cylinders.With Lawrance rotary induction system.Short Allison rods. Reduced diameter?To R-1454. Production by Curtiss.Scaled-down P-2. To R-1200.Developed as direct replacement for Liberty 12. 264 T- series total.
Page 156 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
T-3 WrightT-3A WrightT-3B WrightT-4 Wright4 Wright Brothers4 Wright Brothers6 Wright Brothers
6-60 Wright Brothers
Note: Early types above with no aircraft listed and source
Army-Navy Designation System 1924-Present
Double OpposedXH-1850-2 Fairchild-Ranger
H-2240 P&WXH-2470-1 LycomingH-2470-2H-2470-3
XH-2470-4H-2470-5H-2470-7H-2600-1 P&W
XH-2600-3H-2600-3
XH-2600-5H-2600-5
XH-2860-1 ContinentalH-3130-1 P&WH-3730 P&W
XH-4070-1 MenascoXH-4940 LycomingH-9350-1 Studebaker
Inverted VXV-715-2 NAFV-770-1 RangerV-770-2V-770-3
XV-770-4V-770-5
XV-770-6V-770-6
XV-770-7V-770-7V-770-8
XV-770-9V-770-9
V-770-10V-770-11V-770-13V-770-15
Notes
100 for Navy c.1924.
Military test/use?Vertical 4 1/4 Bore? 4 1/4 x 4 3/8? (180)?Vertical 4 1/4 Bore? 4 1/4 x 4 3/8? (180)?
Supercharged. Cylinders as XV-920. 8 total built. 1 In NASM.To H-2600. Estimated dimensions.Twin O-1230. 50 total ordered by Army?Only 1 ordered?
2-speed propellor gearing. Not built?
1 total X-1800/H2600 built.
Twin O-14305.75 x 5? Not built. To H-3730.Poppet, later sleeve valves.
Military designation?
Tested by NACA c.1943. 1 in NASM.Inverted.
Planiol supercharger.
As -6. 7 built? (Planiol supercharger, hollow prop shaft for cannon 184)
Planiol supercharger.
Page 157 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-770-17SGV-770C-1
SGV-770XV-920 Ranger
XIV-1430-1 ContinentalXIV-1430-3XIV-1430-5
I-1430-7I-1430-9
I-1430-11XIV-1430-13XIV-1430-15XIV-1430-17XIV-1430-19
I-1430-21I-1430-23I-1430-25IV-1440 Continental
XIV-2040-1 MenascoXIV-2220-1 ChryslerXI-2220-1XI-2220-3XI-2220-5XI-2220-7XI-2220-9
XI-2220-11
InlineYL-330-1 MartinYL-365-1 MenascoL-365-1 Menasco
XL-365-2L-365-3L-375-1 DeHavillandL-390 RangerL-410 RangerL-410L-410
L-440-1 RangerL-440-2L-440-3L-440-5L-440-7L-440-9
L-440-11XL-510-1 Miller
L-825 Liberty
Opposed PistonO-15-1 RighterO-15-1 HerkimerO-15-3 Righter
Notes
Enlarged V-770. None built?23 total I-1430 delivered.
Typo for IV-1430? Early designation for IV version of O-1430?Not built. XIV-2020-1?6 total engines built plus 1 & 2-cylinder test engines. Axial supercharger & fuel injection.XIV-2220-1 redesignated.Centrifugal supercharger and carburetor.Centrifugal supercharger and fuel injection. 2 engines ordered, to -7.2-stage centrifugal supercharger, pressure carburetor. Cancelled.Higher rated, single-wall crancase.Aftercooler. Flight test engine.
Chevrolair. Designed by Louis Chevrolet.
Shown as XL-395-2 in some sources.
Official designation?
Military test/use?
As L-440-5.
Double Miller car/boat 255 racing engine
Page 158 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-15-3 McCullochO-15-5O-15-7
XO-40-1 Muncie GearO-45-1 RighterO-45-1 KiekhaeferO-45-1 MenascoO-45-3 Kiekhaefer
O-45-35YO-65-2 NelsonYO-90-1 McCullochO-90-1 McCullochO-90-2O-90-4
YO-95-2 PorscheYO-95-4YO-95-6YO-95-8
O-100-1 McCullochO-100-2O-100-3 Northrop
YO-100-4O-145-B Lycoming
O-145-B1 LycomingO-145-B2 Lycoming
GO-145-C2 LycomingO-150 Franklin
O-150-2 McCullochO-150-4 McCulloch
O-150-4A McCullochO-170-1 ContinentalO-170-2
YO-170-3
O-170-3O-170-5O-170-7O-175-1 FranklinO-180-1 FranklinO-190-1 Continental
YO-200-1O-200-1 FranklinO-200-3
XO-200-5O-200-5O-200-7O-200-9O-200-A ContinentalO-205-1 ContinentalO-235-1 LycomingO-235-2
Notes
Based on Master Twin or Neptune Master 16hp outboard boat motor?
License production.License production.Cancelled VJ.
H-63B? H-63C?
GP-702/1?Based on Type 356 auto engine. Type 702/4?
Proposed for Rotocycle.
2-stroke.2-stroke. Turbosupercharged.
Reduced compression ratio.Stronger pistons, improved thrust bearing, improved crank gear.Improved valves, valve guides, pistons, piston rings. Provision for different props.
Commercial O-205.
Contract to O-235-2.
Page 159 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
IO-235-L2CO-255 Continental
O-290-1 LycomingO-290-3
XO-290-5O-290-7O-290-9
O-290-11O-290-D
O-290-D2O-300-1 Franklin
XO-300-2O-300-3
XO-300-4O-300-5O-300-7
XO-300-9O-300-9
YO-300-11O-300-11O-300-DO-315 Continental
GO-315O-320-E2D Lycoming
O-335-1 FranklinO-335-2O-335-3O-335-4
YO-335-5O-335-5
O-335-5AO-335-5BYO-335-6O-335-6
O-335-6B6VS-O-335-
O-350 FranklinO-350-1 LycomingIO-360-A ContinentalIO-360-C ContinentalIO-360-D Continental
O-360-A2A LycomingIO-360-BIG6 LycomingIO-360-M1A Lycoming
IMO-360-B1B LycomingHIO-360-A1A LycomingHIO-360-B1A LycomingTIO-360-A3B6 Lycoming
TIO-360C LycomingVO-360-A1A Lycoming
XO-405-1 FranklinO-405-2
Notes
Ground power units only?Ground power units only? Geared.
Vertical for Helicopter.Vertical for Helicopter.Vertical for Helicopter.Vertical for Helicopter.
Vertical for Helicopter.
Vertical for Helicopter.
Vertical for Helicopter. 6A4-200-C6?
Vertical for Helicopter.No military use?
Page 160 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XO-405-3XO-405-5O-405-5
XO-405-7XO-405-9O-405-9
XO-405-11XO-425-1 FranklinO-425-1O-425-2
XO-425-3XO-425-5O-425-5O-425-7O-425-9
XO-425-11O-425-13XO-435-1 LycomingO-435-1
XO-435-2O-435-2
XO-435-3XO-435-4O-435-4
XO-435-5O-435-5O-435-6
O-435-6AXO-435-7O-435-7
XO-435-9O-435-9
O-435-11O-435-12O-435-13O-435-15O-435-17O-435-19O-435-21O-435-23
O-435-23AO-435-23BO-435-23CO-435-25
O-435-25AO-435-A2O-435-C
GO-435-B1A6GO-435-C2
GO-435-C2B1GO-435-C2B2-G
TVO-435-25
Notes
Vertical for Helicopter.Vertical for Helicopter.Vertical for Helicopter.Vertical for Helicopter.
Vertical for Helicopter.
Vertical for Helicopter.
AN-I-27 harness and magnetos, altitude compensating carburetor.Wrap around crankcase and 4-pad sump.
Wrap around crankcase and 4-pad sump.As -23 with altitude compensating carburetor.As -23B except spring coupling accessory drive.
Page 161 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
TVO-435-D1BVO-435-
VO-435-21VO-435-23BVO-435-B1B
XO-470-1 ContinentalO-470-2
XO-470-3O-470-3O-470-4
XO-470-5O-470-7
O-470-7AO-470-7BXO-470-9O-470-11
O-470-11AO-470-11BO-470-13
O-470-13AO-470-13BO-470-15O-470-LO-470-M
FSO-470-AIO-470-DIO-470-LO-480-1 Lycoming
O-480-1AO-480-1BO-480-3
O-480-3AGO-480-B
GO-480-CSC6GO-480-F6
GO-480-G1D6GO-480-G2D6
IGSO-480-A1A6IO-520 Continental
IO-520-BIO-520-C
TSIO-520-CIO-520-DGIO-520
GTSIO-520GTSIO-520-M
O-525-1 ContinentalXO-540-1 FranklinXO-540-3O-540-5
XO-540-7O-540-9 Lycoming
Notes
Vertical for Helicopter.Geared & supercharged.Vertical for Helicopter.
Was O-470-13B.Vertical for Helicopter.Similar to E-185. Bendix-Stromberg PS-5C or PS-5CD carburetor.18 mm spark plugs.
Vertical for Helicopter.Two sixth order dampers.
0-470-15 cylinders and pistons.One fifth and one sixth order dampers or two sixth order dampers.Bendix-Stromberg Model PS-5C Carb. Additional tachometer drive through the camshaft gear and one fifth and one sixth order crankshaft damper.Bendix-Stromberg Model PS-5CD Carb. Redesignated O-470-4.As 0-470-11 except: four sixth order damper crankshaft, propeller control provisions, revised engine mounting brackets and long skirt pistons.
Fan for helicopter cooling. Horizontal operation.
GSO-480-1
Commercial.
Geared.
Page 162 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
O-540-9A LycomingO-540-A1AO-540-A2B
O-540-A-3D5AEIO-540-D4A5IGSO-540-B1A
IO-540-GIO-540-K1B5
IO-540-W3A5DVO-540-A1BGIO-550-A ContinentalXO-580-1 LycomingO-580-3
SO-580-A1ASO-580-BSO-580-D
IO-720-A1B LycomingXO-805-1 FranklinXO-805-2XO-805-3O-805-5
O-1230-1 LycomingO-1430-1 Continental
XO-1430-3
RadialXR-250-1 General MotorsR-250-3
YR-265-1 LeBlondR-265-1 Ken RoyceR-270-1 Lambert
YR-370-1 KinnerR-370-1 KinnerR-370-1 Ken RoyceR-420-1 WarnerR-440-1 KinnerR-440-3R-500-1 WarnerR-500-2R-500-3R-500-4R-500-5R-500-6R-500-7R-500-9R-540-1 WrightR-540-3 WrightYGR-540 WrightR-540-1 KinnerR-540-3 Kinner
YR-545-1 ContinentalR-545-1
Notes
Geared.
Wright-Field developed Hyper cylinders.From V-1430 to IV-1430.
Developed from Allison U-250?
Test only?
K-3?
Enlarged K-5.
As R-500-1.
Enlarged B-5.
Was YR-540.
Page 163 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-550-1R-550-1 WarnerR-550-3R-600-1 CurtissR-600
YR-670R-670-1 ContinentalR-670-2R-670-3R-670-4R-670-5R-670-6
R-670-6AR-670-7R-670-8R-670-9
R-670-11R-670-11AR-670-14R-670-98Y1R-670AYR-680-1 LycomingR-680-1R-680-2R-680-3R-680-4R-680-5R-680-6R-680-7R-680-8
R-680-9XR-680-10R-680-11R-680-12R-680-13R-680-14R-680-15R-680-16R-680-17R-680-B5R-680-B6R-680-D1R-680-D5R-680-E1YR-720 Kinner
Y1R-720R-720-1
YR-755-1 JacobsR-755-1
YR-755-3R-755-3
Notes
Added 7th order crankshaft damper.
Added 7th order crankshaft damper.-4?
?
?
Typo for -15?
Enlarged R-5.
Page 164 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
YR-755-5R-755-7R-755-9
R-755-11R-755-A2R-760-1 WrightR-760-2R-760-2 NAFR-760-4
XR-760-6R-760-6R-760-8R-760-8 NAF
R-760-92R-760-94R-760-96 NAFR-760-E
R-760-E1R-760-E2R-790-1 WrightR-790-3R-790-5R-790-8R-790-AR-830-1 JacobsR-915-1 JacobsR-915-3R-915-5R-915-7
XR-918-2 GuibersonR-975-CR-975-E
R-975-E3R-975-1 WrightR-975-3R-975-5R-975-7
YR-975-9R-975-9
R-975-11R-975-11 ContinentalR-975-11 NAFR-975-13 Continental
XR-975-15 ContinentalXR-975-17 ContinentalR-975-19 ContinentalR-975-20R-975-22R-975-24R-975-26R-975-28R-975-28 NAF
Notes
License production. 1127 total R-760 NAF.
Enlarged R-755.
Diesel. 1 in NASM. 4 built (all -2?)
434 total R-975 NAF.
Cancelled.
416? 850 with -30.
Page 165 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-975-30 NAFR-975-32R-975-34R-975-36R-975-38R-975-40R-975-42R-975-44R-975-46
R-975-46A ContinentalDR-980 PackardR-985-AYR-985 P&W
R-985-1 P&WR-985-2R-985-3R-985-4R-985-5R-985-7
YR-985-9R-985-9
R-985-11R-985-11AYR-985-13R-985-13
XR-985-15R-985-17R-985-19R-985-21R-985-23R-985-25R-985-27R-985-29R-985-31R-985-33R-985-34R-985-35R-985-36R-985-37R-985-38R-985-39
R-985-39AR-985-40R-985-45R-985-46R-985-48R-985-50
R-985-AN-1R-985-AN-1 Jacobs
Notes
NAF built (only?).
? Continental?
Diesel. 2 Navy, 2 Army.
?
?
None built?None built.
-11 modified as -25.
None built.
Commercial engine.
?Commercial engine.?Commercial engine.
Converted AN-1. R-985-AN-39?Converted AN-3. R-985-AN-39A?Not built?
Page 166 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-985-AN-1AR-985-AN-2
R-985-AN-3R-985-AN-3 Jacobs
R-985-AN-3AR-985-AN-4R-985-AN-5R-985-AN-6R-985-AN-6 Jacobs
R-985-AN-6BR-985-AN-6B JacobsR-985-AN-7R-985-AN-8R-985-AN-9
R-985-AN-10R-985-AN-11R-985-AN-12
R-985-AN-12BR-985-AN-13R-985-AN-14
R-985-AN-14BR-985-AN-14B Jacobs
R-985-B5R-985-SBR-1044-2 KinnerR-1300-1 Wright
R-1300-1A WrightR-1300-1A KaiserR-1300-1A WillysR-1300-1BXR-1300-2 WrightR-1300-2 WrightR-1300-2 LycomingR-1300-2 Willys
R-1300-2A WrightR-1300-2BR-1300-3 WrightR-1300-3 LycomingR-1300-3 Willys
R-1300-3AR-1300-3BR-1300-3CR-1300-3DR-1300-4 LycomingR-1300-4 Willys
R-1300-4AR-1300 Kaiser-Frazer
R-1340-A P&W
R-1340-B
Notes
Modified AN-1.
Aluminum cases.
Modified AN-3.
Vertical for Helicopter.
Aluminum cases. Not built.Aluminum cases.Not used?
Not used?Aluminum cases.
Not used?All built as -14B?
Unnofficial designation.1/2 R-2600. 853C7B1?
License production.License production.
License production.License production.
Derated for helicopter. 817C7BA1?License production.License production.
Some converted from -3B.License production.License production.
License production -1, -4 at least.200 first ordered for Navy c.1926. Originally R-1300.
Page 167 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-CR-1340-C1R-1340-D
R-1340-D1XGRS-1340EY1SR-1340GY1SR-1340H
R-1340-1 P&WR-1340-2R-1340-3R-1340-4R-1340-5R-1340-6
R-1340-7R-1340-8
R-1340-9R-1340-10R-1340-11R-1340-12R-1340-13R-1340-14R-1340-15R-1340-16
R-1340-16MR-1340-17R-1340-18R-1340-19R-1340-20R-1340-21R-1340-22R-1340-23R-1340-24R-1340-25R-1340-26R-1340-27R-1340-28R-1340-29
XR-1340-30YR-1340-31R-1340-31R-1340-32R-1340-33R-1340-34R-1340-35R-1340-36R-1340-37R-1340-38R-1340-39
Notes
GISR-1340E?
Not built?
K-2?
525 hp in Boeing 100.
Y1SR-1340G ?
?Y1SR-1340-G?
SR-1340H?
?
Not built?
As -27 with Marvel fuel-injection.?
Page 168 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1340-40R-1340-41R-1340-42
XR-1340-43R-1340-43R-1340-44R-1340-45R-1340-46R-1340-46R-1340-47R-1340-48R-1340-48
R-1340-48AR-1340-49R-1340-50R-1340-51R-1340-52R-1340-53
XR-1340-55R-1340-55R-1340-57R-1340-59R-1340-59R-1340-61R-1340-80R-1340-88R-1340-96
R-1340-AN-1 P&WR-1340-AN-1 ContinentalR-1340-AN-1 JacobsR-1340-AN-2R-1340-AN-3R-1340-AN-5R-1340-AN-7R-1340-S3H1
R-1340-S3H1-GR-1454 CurtissR-1454 CurtissR-1454 Curtiss
XR-1510-1 WrightYR-1510-1XR-1510-8
XR-1510-12R-1510-26R-1510-28R-1510-92
XR-1510-94R-1510-98XR-1530C JacobsXR-1530D JacobsR-1535-1 P&W
Notes
Converted AN-1 for helicopter. R-1340-AN-40?
R-1340-AN-1 converted by Navy. R-1340-AN-42?Converted from -41.Typo for -48??
Converted AN-2. R-1340-AN-46?
Converted AN-1. R-1340-AN-48?R-1340-AN-48A?
R-1340-AN-50?
R-1340-AN-52?Commercial engine.
Army converted AN-1. R-1340-AN-55?R-1340-AN-57?10:1 blower. Converted AN-1.12:1 blower. Converted AN-1.
Not built?
License production.License production.Airship
None built.None built.
Wright R-2/R-1454 production. First engine built with Heron Type J cylinders. 3 initially ordered.First engine rebuilt with Heron Type M cylinders. Not flown?2nd & 3rd built with Type M and detail changes. #2 Installed in XP-3?
Twin-row R-755 development. None built?Twin-row R-755 supercharged development. None built?2880 total civil/military 1931-41.
Page 169 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1535-2R-1535-02YR-1535-3R-1535-3
YR-1535-5R-1535-5
YR-1535-7R-1535-7R-1535-9
R-1535-11R-1535-13
XR-1535-15XR-1535-44R-1535-62
XR-1535-64R-1535-66
XR-1535-70R-1535-72R-1535-78R-1535-80R-1535-82R-1535-84R-1535-86R-1535-88R-1535-90
XR-1535-92R-1535-94R-1535-96R-1535-98
R-1535-102XH-1640-1 CurtissR-1640-1 Curtiss
YR-1670-1R-1670-1 Wright
XR-1670-2R-1670-3
XR-1670-5YR-1670-5R-1670-5
XR-1670-7R-1670-7R-1690-1 P&WR-1690-3R-1690-5R-1690-7R-1690-9
YR-1690-11R-1690-11R-1690-13R-1690-15R-1690-17R-1690-19
Notes
Not used? -102?R-1535-102?
2-stage supercharged.
H for "Hex". 6 for Army, 2 for Navy.H-1640 redesignated
X-1670?
2944 R-1690 total.
Page 170 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1690-21R-1690-22R-1690-23R-1690-24R-1690-25R-1690-28R-1690-32R-1690-38R-1690-40R-1690-42R-1690-44R-1690-52R-1690-54R-1690-AR-1690-CR-1690-E
R-1690-S2CGR-1690
XR-1740-2 ContinentalR-1750-1 WrightR-1750-3R-1750-AR-1750-D
GR-1750-DGR-1750
G1R-1750XR-1800 Wright
YR-1820-1R-1820-1 WrightR-1820-2
YR-1820-3R-1820-3
XR-1820-4R-1820-04R-1820-5R-1820-6R-1820-7
R-1820-08R-1820-9
R-1820-10R-1820-11R-1820-12R-1820-13
XR-1820-14R-1820-15R-1820-16R-1820-17R-1820-18R-1820-19R-1820-20
YR-1820-21R-1820-21
Notes
Not built?
Impressed.
In NASM. Sleeve-valve.Developed into R-1820.
? Military designation? 5-row version of R-2160?
?
?
?
2-speed supercharger.
?
?Commercial Engine.
Page 171 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-1820-22R-1820-22R-1820-23R-1820-24
YR-1820-25
R-1820-25R-1820-26
XR-1820-27R-1820-27R-1820-28
XR-1820-29R-1820-29R-1820-30R-1820-31
XR-1820-32R-1820-32
YR-1820-33R-1820-33R-1820-33R-1820-34R-1820-35R-1820-36
YR-1820-37R-1820-37R-1820-38
XR-1820-39R-1820-39
XR-1820-40R-1820-40
R-1820-40BR-1820-40CXR-1820-41YR-1820-41R-1820-41
XR-1820-42R-1820-43R-1820-44
YR-1820-45R-1820-45R-1820-46R-1820-47
XR-1820-48R-1820-48R-1820-49R-1820-50R-1820-51R-1820-52R-1820-53R-1820-54R-1820-55
XR-1820-56
Notes
Commercial Engine.
SR-1820-F2S?
Turbosupercharger experiments.
Commercial Engine. SGR-1820-F3?
Single-stage 2-speed supercharger.
GR-1820-G25?
Tested with Wright TS-6 turbo.2-stage supercharger. Tested with Wright TS-6 turbo.
Page 172 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-56R-1820-56AR-1820-56SR-1820-56W
R-1820-56WAR-1820-57R-1820-58R-1820-59R-1820-60R-1820-61R-1820-62
R-1820-62AR-1820-63R-1820-64R-1820-65R-1820-65 StudebakerR-1820-66R-1820-67R-1820-68R-1820-69
R-1820-70WR-1820-71
R-1820-72AR-1820-72W
R-1820-72WAR-1820-73
R-1820-74WR-1820-75R-1820-76
R-1820-76AR-1820-76A LycomingR-1820-76BR-1820-76B LycomingR-1820-76CR-1820-76DR-1820-77R-1820-78R-1820-78R-1820-79R-1820-80R-1820-80R-1820-80R-1820-80 Lycoming
R-1820-80AR-1820-80BR-1820-80CR-1820-81R-1820-82R-1820-82 Lycoming
R-1820-82AR-1820-82BR-1820-82C
Notes
Water-injection.Water-injection.
G251C?None procured
Cancelled.
G666A?
750?
Water-injection. -70W only?C9CG1?
Water-injection.Water-injection.C9GC?Water-injection.Commercial engine.
518 Wright -76A/B.License production.
License production.
Commercial engine.
Commercial engine.
Commercial engine.
License production.529+?
Page 173 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1820-82DR-1820-82WA
R-1820-83R-1820-84R-1820-84
R-1820-84A LycomingR-1820-84BR-1820-84B LycomingR-1820-84CR-1820-84DR-1820-85R-1820-86R-1820-86 Lycoming
R-1820-86AR-1820-86BR-1820-87
R-1820-87CR-1820-88R-1820-88R-1820-89R-1820-90R-1820-91R-1820-92R-1820-93R-1820-94R-1820-95R-1820-96
R-1820-97
R-1820-97 StudebakerR-1820-98R-1820-99
R-1820-100R-1820-101R-1820-102R-1820-103R-1820-103 Lycoming
R-1820-103AR-1820 Lycoming
R-1820-AR-1820-ER-1820-F
Y1R-1820-FSR-1820-F2R-1820-F51
SR-1820-F52R-1820-F62
R-1820-G102GR-1820-G105A
R-1820-G133R-1820-G202A
Notes
Water-injection.
36?
License production. 176?218 total?
119+?6?
License production.
2423?
Commercial engine.
Commercial engine. C9GC?
C9GC?
License production.
57?License production.
License production.
Commercial Engine from NEIAF contract.Commercial Engine from NEIAF contract.
Commercial engine.
Page 174 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
GR-1820-G205AR-1820-HDXR-1828-2 KinnerXR-1830-1 P&WYR-1830-1R-1830-1 P&WR-1830-2R-1830-3R-1830-4R-1830-5R-1830-6R-1830-7R-1830-8
XR-1830-9R-1830-9
R-1830-10XR-1830-11R-1830-11R-1830-12
XR-1830-13YR-1830-13R-1830-13R-1830-14
XR-1830-15R-1830-15R-1830-16R-1830-17R-1830-18R-1830-19R-1830-20R-1830-21R-1830-22R-1830-23R-1830-24R-1830-25R-1830-26R-1830-27R-1830-28R-1830-29R-1830-30R-1830-31R-1830-32R-1830-33
R-1830-34AR-1830-35R-1830-36R-1830-37R-1830-38
XR-1830-39R-1830-39R-1830-40R-1830-41
Notes
Commercial Engine from NEIAF contract.
?
?
?
?
?
?
?
?
?
?
?To -17.?
?
?
?Long nose.?
Typo for -84A?
?
?
?
Page 175 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-42
R-1830-43R-1830-43 BuickR-1830-43 Chevrolet
R-1830-43AR-1830-43A BuickR-1830-43A ChevroletR-1830-44R-1830-45R-1830-45 BuickR-1830-45 ChevroletR-1830-46R-1830-47R-1830-48R-1830-49R-1830-50R-1830-51R-1830-52R-1830-53
XR-1830-54R-1830-55R-1830-56R-1830-57R-1830-57 ChevroletR-1830-58R-1830-59
XR-1830-60R-1830-61R-1830-62R-1830-63R-1830-64
R-1830-65 BuickR-1830-65A BuickR-1830-65A ChevroletXR-1830-66R-1830-66R-1830-67 Chevrolet
XR-1830-68R-1830-69
XR-1830-70R-1830-70R-1830-71
XR-1830-72R-1830-72R-1830-73
XR-1830-74R-1830-75 Buick
XR-1830-76R-1830-76R-1830-78
Notes
?
?Commercial engine.???Commercial engine.?
?Commercial engine. To -82.?Commercial engine.
Not flown. School engines. Ordered as -43.?
To -94.
Commercial engine for spares.
1 tested with F-14 turbo.
None Built.
High altitude testing.
Page 176 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-1830-80R-1830-82
R-1830-82AR-1830-84
R-1830-84AR-1830-86R-1830-88
R-1830-88AR-1830-90
R-1830-90BR-1830-90CR-1830-90C BuickR-1830-90D
R-1830-92R-1830-92AR-1830-94R-1830-96R-1830-98R-1860-1 P&WR-1860-3R-1860-5R-1860-7R-1860-9
R-1860-11R-1860-13
YR-1860-15R-1860-15R-1860-17R-1860-18R-1860-19R-1860-42R-1860-48R-1860-52R-1860-56R-1860-BGR-1860
XR-2000-1 P&WXR-2000-2R-2000-3R-2000-4
R-2000-4AR-2000-5R-2000-6
R-2000-6AR-2000-7
R-2000-7M2R-2000-9R-2000-9 Buick
R-2000-9A
Notes
Navy conversion with decoupled nose.
Field conversion.
Navy field conversion. Blower clutches inoperative.
British Specification.
100 plus -65 converted by AMC.
Navy conversion with heavier nose section. 160 noses produced.
Navy field conversion of -88 with -92 rear section.Not built.
Not flight tested.
More than 69 built?
Not built.
Navy conversions of -11.
Page 177 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2000-9BR-2000-11R-2000-13
R-2060 P&WH-2120 Wright
XR-2120 WrightR-2160-1 WrightR-2160-3R-2160-5R-2170 Wright
R-2180-1 P&WXR-2180-2R-2180-3R-2180-4R-2180-5R-2180-6R-2180-7R-2180-9
XR-2180-11XR-2270-1 P&WR-2600-1 Wright
XR-2600-2 WrightXR-2600-3 WrightR-2600-3 WrightR-2600-4 WrightR-2600-5 WrightR-2600-6 Wright
R-2600-6A WrightR-2600-7 Wright
XR-2600-8 Wright
R-2600-8 WrightR-2600-8A WrightR-2600-9 Wright
XR-2600-10 WrightR-2600-10 WrightR-2600-11 Wright
XR-2600-12 WrightR-2600-12 Wright
R-2600-13 WrightR-2600-14 WrightR-2600-15 WrightR-2600-16 WrightR-2600-17 Wright
R-2600-17A WrightR-2600-18 WrightR-2600-19 Wright
XR-2600-20 WrightR-2600-20 WrightR-2600-21 WrightR-2600-22 Wright
Notes
Cancelled VJ.Yellow Jacket.H for "Hex" 1000 HP in 1936 at end of program. 2 rows from X-4240. 1 built?H-2120 redesignated. In NASM.Bronze cylinder banks. To -3.Al cylinder banks. RH rotation. 5 ordered?Al cylinder banks. LH rotation. 5 ordered?Short stroke R-2600. Cancelled.
?
1/2 R-4360.1 only built? In P&W Museum.
74?
333?
BB1?
None built?
A5B-5?
Converted to -19.
Page 178 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2600-23 WrightR-2600-25 WrightR-2600-27 WrightR-2600-29 Wright
R-2600-29A WrightR-2600-31 WrightR-2600-33 WrightR-2600-35 Wright
R-2600-A71-3 WrightR-2600-A2A Wright
R-2600 StudebakerR-2600 P&W
R-2800-1 P&WXR-2800-2 P&WR-2800-3 P&W
XR-2800-4 P&WR-2800-5 P&WR-2800-5 Ford
XR-2800-6 P&WR-2800-7 P&WR-2800-8 P&WR-2800-8 Nash
R-2800-8W P&WR-2800-8W NashR-2800-9 P&W
R-2800-10 P&WR-2800-10 Nash
R-2800-10W P&WR-2800-10W NashR-2800-11 P&WR-2800-12 P&WR-2800-13 P&W
R-2800-14W P&W KCR-2800-15 P&W
XR-2800-16 P&WR-2800-16 P&W
XR-2800-17 P&WR-2800-18 P&W
R-2800-18W P&WR-2800-18WA P&W
R-2800-19 P&WR-2800-20 P&WR-2800-21 P&WR-2800-21 FordR-2800-22 P&WR-2800-22 P&W KC
R-2800-22W P&W KCXR-2800-23 P&WR-2800-23 P&W
XR-2800-24 P&WR-2800-24 P&W
Notes
Not built
For Britain.?-29 modified with Bendix Stromberg PR48A4 carburetor.
Commercial engine.Proposed production of Wright engine. Cancelled 6/1941. R-1820 instead.Initial displacement of R-2800. Military designation?
?
Updraft carburetor.
Water injection.
Converted to -5.Downdraft carburetor.
Water injection.
CW rotation. Right engine.Experimental dual-rotation for Hamilton Standard.Wright Field sea-level test engine.
As -11. CC rotation. Left engine.
None built.Water injection.
For pusher. None built.None built? As -27 except cast harness.R-2800-BG?
R-2800-SC13-G?
R-2800-SC13-G?Reverse-flow cooling for pusher. 2-speed gearing. To -29.Typo for -83?None built.None built.
Page 179 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-2800-25 P&WR-2800-26 P&W
XR-2800-27 P&WR-2800-27 P&WR-2800-27 FordR-2800-28 P&W
XR-2800-29 P&WYR-2800-30W P&WR-2800-30W P&WR-2800-31 P&WR-2800-31 Ford
R-2800-32W P&WR-2800-32W P&WR-2800-33 P&WR-2800-34 P&W KC
R-2800-34A P&W KC
R-2800-34W P&W KCR-2800-34W4 P&W KCR-2800-34WA P&W KC
R-2800-35 P&WR-2800-36 P&W
R-2800-36W P&WR-2800-37 P&W
R-2800-38W P&WR-2800-39 P&WR-2800-40 P&W
R-2800-40W P&WR-2800-41 P&W
R-2800-42W P&WR-2800-43 FordR-2800-44 P&W
R-2800-44W P&WR-2800-45 P&WR-2800-46 P&W
R-2800-46W P&WR-2800-47 P&WR-2800-48 P&WR-2800-49 P&WR-2800-50 P&W
R-2800-50A P&WR-2800-51 Ford
R-2800-51M1 FordR-2800-52W P&WR-2800-52W Nash
R-2800-52WA P&WR-2800-53 P&WR-2800-54 P&WR-2800-55 P&WR-2800-57 P&WR-2800-57 P&W KCR-2800-57 Chevrolet
Notes
R-2800-B2-G?
To -34WReverse-flow with fan for pusher. R-2800-D2G? Ordered as -23. 2-speed reduction dropped.Pre-production.
R-2800-BG?
Pre-production.
R-2800-BG? None built.R-2800-2SC13G?None built.
Modified for USCG.None built.R-2800-AC?None built.
None built.
None built.None built.
Not built?
Converted -41.None built.
For Britain Lend-Lease.
R-2800-2SBG?
Postwar modification with "C" cylinders. Military use?R-2800-DWCB17? As -99W but added 3:1 generator drive.License-built.No clutch selector valve.Contra-rotating propellors. Converted -10.
Delivered to Wright Field
Page 180 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-2800-59 P&WR-2800-59 FordR-2800-61 P&WR-2800-63 P&WR-2800-63 FordR-2800-65 P&WR-2800-65 NashR-2800-67 P&WR-2800-69 P&WR-2800-71 FordR-2800-73 ChevroletR-2800-75 FordR-2800-77 ChevroletR-2800-79 FordR-2800-81 P&W KCR-2800-83 Chevrolet
R-2800-83A ChevroletR-2800-83W Chevrolet
R-2800-83WA ChevroletXR-2800-85 ChevroletR-2800-85 Chevrolet
R-2800-85A ChevroletR-2800-87 P&WR-2800-89 P&WR-2800-91 P&WR-2800-93 P&W
XR-2800-95 P&WR-2800-97 P&W
R-2800-99W P&WR-2800-99W NashR-2800-101 P&W
R-2800-103W P&WR-3350-1 WrightR-3350-2R-3350-3R-3350-4R-3350-5R-3350-6R-3350-7R-3350-8R-3350-9
R-3350-10R-3350-11R-3350-12
XR-3350-13R-3350-14
XR-3350-15XR-3350-16XR-3350-17R-3350-18
XR-3350-19
Notes
R-2800-TSC1G? As -21 with G.E. tubular ignition harness and water injection.License-built.Delivered without nose case. To -57 with -57 nose case.As -21 with water injection.License-built.As -10 with G.E. tubular ignition harness and water injection.License-built.As -27 with water injection.As -43 with water injection.License-built. As -10 with G.E. tubular ignition harness.License-built. As -57 with G.E. cast ignition harness and double-acting governor.License-built. As -51 with G.E. tubular ignition harness.License-built. As -57 with G.E. cast ignition harness and double-acting governor.License-built. As -27 with G.E. tubular ignition harness and water injection.As -57 with G.E. cast ignition harness.
Water-injection.Water-injection. -83A purchased from Capitol Airlines and modified by Navy.
R-2800-2SC13G?
R-2800-TSC2G?R-2800-2SC14G?
None built.
Water-injection.Water-injection.Converted -57.Converted -99W.Bore & stroke as R-2600.
6?6? A677?
BH1?
As -13 w/opposite propellor rotation. Cancelled.
Page 181 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-20R-3350-21
R-3350-21AR-3350-22R-3350-23R-3350-23 Dodge
R-3350-23AR-3350-23A DodgeR-3350-23BR-3350-24
R-3350-24WR-3350-24WA
R-3350-25R-3350-26
R-3350-26WR-3350-26WAR-3350-26WA ChevroletR-3350-26WBR-3350-26WB ChevroletR-3350-26WCR-3350-26WD
R-3350-27R-3350-28R-3350-29
YR-3350-30WR-3350-30W
R-3350-30WAR-3350-30WB
R-3350-31R-3350-32
R-3350-32WR-3350-32WA
R-3350-33R-3350-34R-3350-35
R-3350-35AR-3350-36
R-3350-36WR-3350-36WA
R-3350-37R-3350-37AR-3350-38R-3350-39R-3350-40R-3350-41R-3350-42
XR-3350-43R-3350-44R-3350-45R-3350-47R-3350-49R-3350-51
Notes
162 ordered.
1366 ordered.
22385 with Dodge?
Bendix carb.All W?
All W?
1696 with -26WB.
USAF engines have small differences.Not built
Turbo-compound. Impeller injection. Manifold pressure regulator.Turbo-compound. Impeller injection. No manifold pressure regulator.Turbo-compound.
All W?Turbo-compound.Turbo-compound.
Turbo-compound. Direct fuel injection. Internal torquemeter line.BA4?
All W?Turbo-compound. As -30W with drilled turbine wheel.
Turbo-compound. Direct fuel injection.
??
Page 182 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-3350-53R-3350-55R-3350-57R-3350-57 Dodge
R-3350-57MR-3350-57AR-3350-57A Dodge
R-3350-57AMR-3350-59
R-3350-59AR-3350-61R-3350-63R-3350-65
XR-3350-65AR-3350-67R-3350-69R-3350-71R-3350-73
YR-3350-75R-3350-75R-3350-77R-3350-79R-3350-81R-3350-83R-3350-85R-3350-85 ChevroletR-3350-87R-3350-89
R-3350-89AR-3350-89BR-3350-91
R-3350-91AR-3350-93
R-3350-93AR-3350-93BR-3350-95W
R-3350-999TC18-EA2R-3350-749C18-BD1
R-3350-BDXR-3640-1 WrightXR-4090-1 WrightR-4090-3 WrightH-4240 Wright
XR-4360-1 P&WXR-4360-2 P&WR-4360-2
R-4360-2AR-4360-3
XR-4360-4YR-4360-4
R-4360-4
Notes
787C18BAC?
824C18BC1?
R-3350-749C18-BD1?4?
~2400 -57A planned to be modified with Torquemeter nose case.Turbo-compound. Impeller injection.License production.
Turbo-compound. As -85 with drilled turbine wheel. Armor-plated PRT housings.
Carburetted?Turbo-compound. As -34 with manual spark advance.??-93W only?
To R-3350-73/75?R-3350-749C18-BD1?Double 1820. 60 deg Y22 R-3350 cylinders. 2 built?Contra-rotating propellors. Not built?H for Hex. Military designation? Double H-2120. Not built.Designation not used. (Unnofficial designation for X Wasp in XA-31B?)R-2800 cylinders. Type test.YR-4360-4 with Bendix carb.YR-4360-4 with Chandler-Evans carb.None built. R-4360-TSB1-GD?
Redesignated to -2, 2A
1 for Army.
Page 183 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
R-4360-4AR-4360-4TR-4360-4W
R-4360-4WTR-4360-5R-4360-6
XR-4360-7XR-4360-8R-4360-8AXR-4360-9R-4360-9T
XR-4360-10XR-4360-11R-4360-12
R-4360-12AXR-4360-13R-4360-14
XR-4360-15R-4360-16R-4360-17R-4360-18R-4360-19R-4360-20
R-4360-20WR-4360-20A
R-4360-20ATR-4360-20WAR-4360-20B
R-4360-20WBR-4360-20C
R-4360-20WCR-4360-20WDR-4360-20TR-4360-21
R-4360-22WR-4360-23R-4360-24R-4360-25
XR-4360-27R-4360-27
XR-4360-29R-4360-31
XR-4360-33R-4360-35
R-4360-35AR-4360-35BR-4360-35CXR-4360-37XR-4360-39XR-4360-41R-4360-41
R-4360-41A
Notes
With torquemeter
Military use?R-4360-TSB1-PG2?None built.
R-4360-VS-B11-G?With torquemeter
R-4360-VSBR-21-G? 2-stage, variable speed mechanical supercharger.
?Outboard engines.
None built. R-4360-VSS-B210CD? Fluid-coupled variable speed supercharger.197 Army, 78 Navy.546 Army, 37 Navy.Long rodsMilitary use?1948 Army, 155 Navy.
Military use?Inboard engines.
Turbosupercharged, dual rotation.Converted from -4.R-4360-TSB1P-G2?
R-4360-VSS-21G?
2-stage supercharger.
Long rods.Long rods.Modified from -31.2 or 3 built. Converted to -43.
R-4360-TSB-3G?Long rods.
Page 184 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
XR-4360-43R-4360-43R-4360-45R-4360-47R-4360-49
R-4360-49AXR-4360-51R-4360-51R-4360-53R-4360-53 FordR-4360-55R-4360-57R-4360-59
R-4360-59AR-4360-59A FordR-4360-59BR-4360-59B FordR-4360-61R-4360-61 FordR-4360-63R-4360-63 Ford
R-4360-63AR-4360-63A FordR-4360-63BR-4360-65
R-4360-TSB1-GXR-7755-1 LycomingXR-7755-3 LycomingXR-7755-5 Lycoming
Rotating Combustion Chamber (Wankel)YRC-180-2 Curtiss-Wright
Two-Row Inline (V)V-032 Andover
V-032DXV-105-2 KiekhaeferV-105-2V-720 Wright
V-1008 ContinentalV-1150-1 CurtissV-1150-3V-1150-5V-1150-7V-1150-9V-1237 PackardV-1400 CurtissV-1400 CurtissV-1410 Engineering Division
GV-1410 AllisonV-1410-1 Allison
XV-1430-1 Continental
Notes
VDT.Cancelled production.Outboard engines.Inboard engines.Field converted from -35.Field converted from -35. Long rodsVDT. Converted to XR-4360-43.Pcancelled production.2240 with below.License production.
High-compression pistons.
To -61.To -61.4260 with below.License production.-59A redesignated. 6 with below.License production.
License production.
License production.
Converted -35A,C
3 built total?2-speed gearing.Fuel injection.
Wankel
B-29 APU. Army Type D-2. Manufacturer designation V-32.
2-cycle.
Wright (Hispano) E. Redesignated.Hyper cylinders. Enlarged to V-1430.
None procured.1A-1237 redesignated.V-1150 development. 5 for P-2.Race modified. 2 for R3C-1/2.Sam Heron upright air-cooled Liberty modification. Parts for 2 engines supplied by Allison.Inverted, epicyclic gear reduction. Built from Liberty 12BInverted direct-drive.To O-1430.
Page 185 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1430-1 ContinentalV-1430-3 ContinentalV-1440 CurtissV-1440 Continental
V-1460-1 Curtiss-WrightV-1460-3 Curtiss-WrightV-1500 CurtissV-1510 CurtissV-1550 Curtiss
GV-1550 CurtissV-1560-1 Wright
V-1570-1 CurtissV-1570-3V-1570-5V-1570-7V-1570-9
V-1570-11V-1570-13V-1570-15V-1570-17V-1570-19V-1570-21
V-1570-23
V-1570-25V-1570-27V-1570-29V-1570-31V-1570-33V-1570-35V-1570-37V-1570-39V-1570-41V-1570-43V-1570-45V-1570-47V-1570-49V-1570-51V-1570-53V-1570-54V-1570-55V-1570-57V-1570-59V-1570-61SV-1570
V-1650-1 AllisonV-1650-2 AllisonV-1650-3 AllisonV-1650-5 Allison
Notes
Alternative upright IV-1430-1.Alternative upright IV-1430-3.V-1400?IV-1440?Inverted. 14 total V-1460 built.
V-1550?V-1500/1510? V-1550/1570?Original designation for V-1570.Geared. Navy test?2 built. For military?
GIV-1570-E1?
Modernized. Rebuilt?Modernized. Rebuilt?Modernized. Rebuilt?Modernized. Rebuilt?V-1570-EN? Modernized. Rebuilt?GIV-1570-EN? Modernized. Rebuilt?
Rebuilt.Rebuilt.Rebuilt.Rebuilt. 2.00 spur-gear reduction.
Page 186 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1650-7 AllisonV-1650-9 Allison
V-1650-11 AllisonV-1650-13 AllisonV-1650-1 PackardV-1650-3 PackardV-1650-3 Continental
XV-1650-5 PackardV-1650-7 PackardV-1650-7 ContinentalV-1650-9 PackardV-1650-9 Continental
V-1650-9A PackardV-1650-11 PackardV-1650-13 PackardV-1650-15 PackardV-1650-17 PackardV-1650-17 ContinentalV-1650-19 Packard
XV-1650-21 PackardXV-1650-23 PackardV-1650-23 PackardV-1650-25 Packard
V-1650-209 PackardV-1650 Ford
XV-1650 FordXV-1650 Ford
GV-1710-A AllisonXV-1710-1 AllisonXV-1710-2 AllisonXV-1710-3 AllisonYV-1710-3 AllisonXV-1710-4 AllisonYV-1710-4 AllisonXV-1710-5 AllisonYV-1710-5 AllisonXV-1710-6 AllisonV-1710-6 Allison
XV-1710-7 AllisonYV-1710-7 AllisonXV-1710-9 AllisonYV-1710-9 AllisonV-1710-11 Allison
YV-1710-13 AllisonXV-1710-15 AllisonXV-1710-17 AllisonV-1710-17 AllisonV-1710-19 AllisonV-1710-21 AllisonV-1710-23 AllisonV-1710-25 AllisonV-1710-27 Allison
Notes
Rebuilt. 5:3 epicyclic gear-reduction.Rebuilt with heavy crankshaft.Rebuilt.Rebuilt inverted. 5 for USCG.Single-stage supercharging as Merlin XX. 3061 ordered.Two-stage supercharging. Many converted to -7. 13325 ordered.Alternate supplier.2-stage, extension shaftDifferent supercharger gear ratio.Alternate supplier.Simmonds speed & boost control. Water injection provision.Alternate supplierAs -9 with -7 accessories for P-51D.Speed-density carbAs -3 with auto-boost.As -5 with auto-boost.As -7 with auto-boost.Alternate supplier.Speed-density carb. Variable speed supercharger control.Speed-density carb. Left hand rotation.
As -21 except different carburetors.Left hand rotation.Designation? Commercial Packard-built Merlin?License-built Merlin. Cancelled.Developed into GAA tank engine. Development monitored by Army. 2 built?4 counterweight crankshaft, different firing order, separate accessory section, removeable turbosupercharger. Development monitored by Army. 2 built?Airship. To V-1710-2
Airship. Reversing.
Completed as -7, -9, -13.
Fuel injection. 2 YV-1710-3 to be converted. 2 sets of parts made. Not assembled.
Production version. Cancelled.Ordered as YV-1710-3. Ground test only.Ordered as YV-1710-3.
Ordered as YV-1710-3.
Ordered as YV-1710-3.Left-hand.
Delivered as -37.
Page 187 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-29 AllisonV-1710-31 AllisonV-1710-33 AllisonV-1710-35 AllisonV-1710-37 AllisonV-1710-39 AllisonV-1710-41 AllisonV-1710-43 AllisonV-1710-45 AllisonV-1710-47 AllisonV-1710-49 AllisonV-1710-51 AllisonV-1710-53 AllisonV-1710-55 AllisonV-1710-57 AllisonV-1710-59 AllisonV-1710-61 AllisonV-1710-63 AllisonV-1710-65 AllisonV-1710-67 Allison
XV-1710-69 AllisonXV-1710-71 AllisonV-1710-73 AllisonV-1710-75 AllisonV-1710-77 Allison
XV-1710-79 AllisonV-1710-81 Allison
V-1710-81A AllisonV-1710-83 AllisonV-1710-85 AllisonV-1710-87 AllisonV-1710-89 Allison
V-1710-89A AllisonV-1710-91 Allison
V-1710-91A AllisonV-1710-93 AllisonV-1710-95 AllisonV-1710-97 Allison
V-1710-97A AllisonV-1710-99 Allison
V-1710-99A AllisonV-1710-101 Allison
XV-1710-103 AllisonXV-1710-105 AllisonV-1710-107 AllisonV-1710-109 Allison
V-1710-109A AllisonXV-1710-111 AllisonV-1710-111 Allison
XV-1710-113 AllisonV-1710-113 AllisonV-1710-115 Allison
Notes
810 To Britain.Ordered as -17.Spur-gear reduction
Birman supercharger?Altitude ratedAltitude rated
Stratos supercharger?
Converted to -73,
Auto boost.
Auto boost.
? Typo
? Typo
Page 188 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
V-1710-115A AllisonV-1710-117 Allison
XV-1710-119 AllisonV-1710-119 Allison
XV-1710-121 AllisonXV-1710-123 AllisonXV-1710-125 AllisonV-1710-125 AllisonV-1710-127 Allison
XV-1710-129 AllisonV-1710-129L AllisonV-1710-129R AllisonXV-1710-131 AllisonV-1710-131 Allison
XV-1710-133 AllisonXV-1710-135 AllisonV-1710-135 Allison
XV-1710-137 AllisonXV-1710-137L AllisonXV-1710-137R Allison
V-1710-139 AllisonV-1710-141 AllisonV-1710-143 AllisonV-1710-145 AllisonV-1710-147 AllisonV-1710-149 AllisonV-1710-C15 AllisonV-1710-E4 Allison
V-1800 Curtiss-WrightV-1950 Wright
XV-3420-1 AllisonV-3420-1 AllisonV-3420-2 AllisonV-3420-3 Allison
XV-3420-5 AllisonXV-3420-7 AllisonXV-3420-9 Allison
XV-3420-11 AllisonV-3420-11 Allison
XV-3420-13 AllisonV-3420-15 AllisonV-3420-17 Allison
XV-3420-19 AllisonXV-3420-21 AllisonXV-3420-23 AllisonXV-3420-25 AllisonXV-3420-27 AllisonV-3420-29 Allison
XV-3420-31 AllisonDV-6840 Allison
Three-Row Inline (W)
Notes
V-1710-F-31R?
2-stage supercharged, aftercooler, speed-density carburetor.
Auxiliary-stage supercharger.V-1710-F23L?
Turbo-compound.
2-stage supercharged, carburetor.2-stage supercharged, carburetor, left hand.2-stage supercharged, speed-density carburetor. 1 converted -133.2-stage supercharged, speed-density carburetor, left hand.Not built? 1 ordered? Turbo compound.Not built? 1 ordered? Turbo compound.Commercial engine from British contract.Commercial engine from British contract.Uprated Conqueror. Separate cylinders. -1934. Tested by Army 1932. Sold to Russia.T-3 redesignated.Twin V-1710.Ordered as -3 delivered as -5,7.Marine version.5 delivered as -5, 7Ordered as -3Ordered as -3
Cancelled.
Not flown.
Not flown.Not flown.Not flown.
Not built.Military designation? Double V-3420.
Page 189 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
W-2779 Engineering Division
Four-Row Inline (X)X-1670 WrightX-2775 PackardX-3130 P&W
X-3420-1 AllisonX-3420-3 AllisonX-4240 WrightX-4520 AllisonX-5340 Engineering Division
UndesignatedC-10 Homelite
C-13A WaukeshaE-005 ?
N-1610 ?O-861-C ?
115-I Alfa-RomeoAirship Diesel Allison
U-250 AllisonAs.10C Argus
Cheetah IX Armstrong SiddeleyCheetah X Armstrong Siddeley
IV BMW132 BMW
Hercules BristolHercules BristolJupiter Bristol
Jupiter VIIF BristolMercury XII BristolMercury XX Bristol
Mercury XXX BristolPegasus XVIII Bristol
Perseus XII BristolCirrus II Cirrus
A50 ContinentalA65-7 ContinentalA65-8 ContinentalA75-9 ContinentalA-80 Continental
C-85-8FJ ContinentalC-90-8FJ ContinentalC-90-12 Continental
C-90-12F ContinentalC-145-2H Continental
E-185 ContinentalE-225 Continental
Hyper #1 ContinentalContinental
Hyper #2 ContinentalBR-1 CRM
Notes
W-1 redesignated. Packard-built.
R-1670? True-motion rods.2A-1500 cylinder blocks.Air-cooled poppet valve. To liquid cooled, then to H-3130.To V-3420.
Double H-2120. To H-4240
Cancelled.
B-17/24 Ground APU.Ground APU.Commercial engine? More? Typo for E-225?Commercial engine? More? Typo for V-1710?Commercial engine? More? Typo?Ex-Italian embassy. B&S?2-cycle Diesel. 900 HP estimated?
License-built R-1690.Single-sleeve-valve.Single-sleeve-valve.Alfa Romeo-built Jupiter IV.
Single-sleeve-valve.Cylinders from surplus WWI Renault air-cooled V-8. Commercial engine developed into O-170.Commercial O-170.Commercial O-170. O-170-3?Commercial O-170. O-170-5?Commercial O-170.C-858-FJ typo. O-190. Fuel injection.C-908-FJ typo. O-205. Fuel injection.Commercial O-205.Commercial O-205.Commercial.Commercial O-470. More?Commercial O-470.Single cylinder test developed into O-1430. Modified Liberty 12 cylinder.Twin Hyper #1 test developed into O-1430.Lower coolant design temp and supercharge. Developed into O-1430-1.Adapted diesel marine engine. 18D/SS BR-1?
Page 190 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
RC 2-60 Curtiss-Wright440 Cuyuna
Gipsy I DeHavillandGipsy III DeHavilland
Gipsy Major DeHavillandGipsy Minor DeHavilland
Gipsy Queen II DeHavillandGipsy Queen III DeHavilland
DA-150 Desert Aircraft447-C Fairchild
P.24 Monarch FaireySF2-350 Fichtel & Sachs
G2G Ford4AC-199-E3 Franklin6A4-165-B3 Franklin6AC-264F2 FranklinDyad 220 Herbrandson
Dyad 280 B Herbrandson8Ab Hispano-Suiza9Qa Hispano-Suiza
12Y45 Hispano-Suiza12Ycrs Hispano-Suiza18-S Hispano-Suiza
GX-57 Honda61 K&B
KB7ATS KiekhaeferMercury Mk.55 Kiekhaefer
K-5 KinnerR-5 Kinner
Kinney-Noble150D2-B L.A.E
L2400EB1.AD Limbach4300 McCulloch
4318E McCullochTC6150-J-2 McCullochB-4 Pirate Menasco
B-6 Bucaneer MenascoC-4 Menasco
C-6S-4 Super Buccaneer MenascoC-6S-5 Super Buccaneer Menasco
D-4 Pirate MenascoD-4B Super Pirate Menasco
180 Mercedes-Benz151 Miller
Moto GuzziSabre Chrysler
Sabre IIA NapierH-56 NelsonH-59 Nelson
H-63A NelsonH-63B Nelson100SS Quadra
Notes
Wankel.2-stroke snowmobile engine.
Inverted.L-375.
2-cycle gasoline model aircraft engine.
Test from RAF. Suggested to be built by Ford for P-47.2-stroke. 700 cc?2-cylinder development engine for GGA.Commercial O-200.Commercial O-335.
2-cycle. Based on Stihl 110cc chainsaw motor cylinders? Bore/stroke?2-cycle
License-built Wright J-6-9 (R-975)Army test with Szydlowski-Planiol S-39-H3 supercharger.Test of 20 mm type 9 Motor-cannon. 12Ycrc?"Some" delivered. 18-Sb, 18-Sbr?Lawnmower engine!2-cycle model airplane engine. Data from MECOA.Modified KB7A chain-saw engine tested for drone use. 2-cycle.Modified outboard boat motor. Water cooled? 2-cycle.
2-cycle.
O-90?Commercial O-100Turbosupercharged. O-150-4?
Commercial engine.Commercial engine.Commercial engine.Commercial engine as L-365.Army type test. D-4-87?Heavy fuel engine adapted from Smart Car CDI. Turbosupercharged.Supercharged. Army test.Motorcycle engine. (V 750 CA 1100?)Proposed license production in U.S. Cancelled.Test from RAF.Typo for H-59?2-stroke.2-stroke. To YO-65?2-stroke. To YO-65?2-cycle. Bore & stroke?
Page 191 of 192
U.S. Military Aircraft Piston Engines 1908 to Present - ©2012-15 - RMF 7/25/2015
Designation Manufacturer
Power ProductsPower Products
Bengali 6 RenaultBengali 6Q-09 Renault
RighterRighter
Sidewinder RighterGriffon III Rolls RoyceGriffon 66 Rolls RoyceMerlin II Rolls RoyceMerlin III Rolls RoyceMerlin XX Rolls RoyceMerlin 28 PackardMerlin 31 PackardMerlin 61 Rolls RoyceMerlin 76 Rolls Royce
Merlin 113 Rolls RoyceMerlin Rolls Royce
Peregrine I Rolls Royce912 S4 Rotax
914 Rotax914 F Rotax
Ash-621R ShvetsovNoah T. Smith
Centurion 1.7 ThielertCenturion 4.0 Thielert
3W-56 3W Modellmotor3W-150i 3W Modellmotor
AR741-38 UAV Engines Ltd.AR741-1100 UAV Engines Ltd.AR741-1101 UAV Engines Ltd.
AR801R UAV Engines Ltd.50-499 WarnerT-14 Wright
WM-80 Wright-Morehouse
Notes
Forward propulsion unit.Forward propulsion unit.Ex-French Embassy.
Twin opposed with some parts from 1937 Evinrude 'Fisherman'. 2-stroke.Twin opposed driving twin geared props. 2-stroke.Twin vertical driving twin geared props. 2-stroke.British-built. No USA Spitfire XII?British-built.British-built.British-built.British-built.2-speed single-stage supercharged.2-speed single-stage supercharged.British-built.British-built.British-built.British-built. Merlin 100/101? Not 145M.Test from RAF.Air-cooled cylinders, water cooled-heads.Air-cooled cylinders, water cooled-heads.Air-cooled cylinders, water cooled-heads.OTSA.3-valve motorcycle engine test. T.Noah Smith?Diesel. Based on MB OM668 auto engine.Diesel. Based on MB OM629 auto engine.Model airplane engine.Model airplane engine.Below 38hp?Wankel. 87 mogas.Wankel. Dual spark plugs, 100LL fuel.WankelCommercial R-500.R-2160 test section. 2/4 with military serials?
Page 192 of 192
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