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Airfield Design
Textbook Chapter 9AC: 150/5300-13A
Airside Components
Runways Taxiways (Significant changes to taxiways
occurred recently. See latest FAA Advisory Circulars) *
Taxilanes Apron
Airside Example
Airport Types
Utility airports Speeds < 120 knots
Transport airports Speeds >121 knots
Design Aircraft Classes
Based on wingspan I <49 ft II 49-79 ft III 79-118 ft IV 118-171 ft V 171-197 ft VI 197-262 ft
Runway Spacing (1/2)
Runway to runway – see table 9-4 and footnotes!
VFR I-IV >700 ftV, VI >1200 ft
IFR Min 2,500 ftIndep Arr Min 4,300 ftDepen Arr Min 3,000 ft.Both Dep w/radar 2,500
ftw/o radar 3,500 ft
Runway Spacing table 9-14
(2/2)
Prec.RWYTWY
TWY
600
325 Holding area
500
Parked
800
Taxiways & Taxilanes*
Side to sideTWY 1.2 WS +10TLN 1.1 WS+10
Behind (object to TWY or TLC CL)TWY 0.7 WS +10TLN 0.6 WS+10
Example only … look up specs in recent
ACs
Apron Area
Parking type Nose in Angle Parallel
All around clearance of 0.1 WS+10
Example (1/2)
B727-200; L 154 ft; WS 108 ft
RWY
TWY
Bounds
Example (2/2)
0.1 WS+10=21L=154
0.6 WS+10=75=distance
from CL of TW to object
1.1 WS + 10 = 129 = separation between taxiways
0.1 WS+10=21
0.1 WS+10 =21
WS=108
L+(0.1WS+10)+(WS/2)=230 = distance from taxiway to terminal
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Figure for ex 9-7
Notice anything different???