Thrust Measuring Rig or ‘Flying Bedstead’ gathered useful data for the P.1127 (Harrier) project. Hawker Siddeley Harrier - 1967–1970s Harrier GR9 - 2008 Hawker P.1127 and the Hawker Siddeley Kestrel FGA.1 were the experimental and development aircraft that led to the Hawker Siddeley Harrier. Both aircraft were powered by the Pegasus engine. August 1989. Pegasus 11-61 engine sets time-to-height records at 3,000m (36 seconds), 6,000m (55 seconds) and 9,000m (81 seconds). Pegasus powered STOVL Harriers are still in operation today with: • United States Marine Corps • Italian Navy (Marina Militare) • Spanish Navy (Armada Española) Lockheed Martin JSF X-35B concept demonstration aircraft 1996 - 2001 Boeing JSF X-32B concept demonstration aircraft 1996 - 2001 BF-1 - 2010 The Rolls-Royce LiftFan must operate in STOVL conditions which result in a 288 mph crosswind to the LiftFan intake and still meet stability requirements. The power transmitted to the Rolls-Royce LiftFan (29,000 horsepower) is enough to raise ten elephants to the top of the Empire State Building in just seven seconds! Processing power for one simulation of the CFD software developed by Rolls-Royce equates to playing a games console for 14 years! The Rolls-Royce LiftFan swallows enough air to empty a squash court in just over a second! The Rolls-Royce LiftFan™ rotor can withstand the impact energy equivalent to Harry Kane kicking 150 footballs at one time! We put the vertical lift in the F-35B Lightning II Rolls-Royce has over 60 years of unrivalled STOVL experience STOVL power for the Lockheed Martin F-35B Lightning II Did you know? The Rolls-Royce LiftSystem® which is integrated with the Pratt & Whitney F135 engine is the first to enable Short Take Off and Vertical Landing (STOVL) operations for supersonic capable aircraft. The system is a descendant of the Pegasus engine, comprised of the Rolls-Royce LiftFan®, Driveshaft and Clutch, 3 Bearing Swivel Module (3BSM) and Roll Posts. F-35B photos © Lockheed Martin Corporation The Rolls-Royce LiftFan, a 50-inch, two-stage counter-rotating fan capable of generating more than 20,000 lbf of thrust, is driven from a conventional gas turbine and produces the forward vertical lift. 2. The Driveshaft & Clutch Delivers up to 29,000 shaft horsepower from main engine to the Rolls-Royce LiftFan®. 3. Aircraft roll control is achieved using the Roll Posts mounted in the wings of the aircraft, which provide a further 1,950 lbf of thrust each. The 3BSM is a swivelling jet pipe capable of redirecting the main engine thrust downward to provide the rear vertical lift. The jet pipe can rotate through 95 degrees in 2.5 seconds and passes 18,000 lbf of thrust.

We put the vertical lift in the F-35B Lightning II/media/Files/R/Rolls-Royce/documents/... · Hawker Siddeley Harrier - 1967–1970s Harrier GR9 - 2008 Hawker P.1127 and the Hawker

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Thrust Measuring Rig or ‘Flying Bedstead’ gathered useful data for the P.1127 (Harrier) project.

Hawker Siddeley Harrier - 1967–1970s

Harrier GR9 - 2008

Hawker P.1127 and the Hawker Siddeley Kestrel FGA.1 were the experimental and development aircraft that led to the Hawker Siddeley Harrier. Both aircraft were powered by the Pegasus engine.

August 1989. Pegasus 11-61 engine sets time-to-height records at 3,000m (36 seconds), 6,000m (55 seconds) and 9,000m (81 seconds).

Pegasus powered STOVL Harriers are still in operation today with: •UnitedStatesMarineCorps• ItalianNavy(MarinaMilitare)•SpanishNavy(ArmadaEspañola)

Lockheed Martin JSF X-35B concept demonstration aircraft 1996 - 2001

Boeing JSF X-32B concept demonstration aircraft 1996 - 2001

BF-1 - 2010

The Rolls-Royce LiftFan must operate in STOVL conditions which result in a 288 mph crosswind to the LiftFan intake and still meet stability requirements.

The power transmitted to the Rolls-Royce LiftFan (29,000 horsepower) is enough to raise tenelephantstothetopoftheEmpireStateBuilding in just seven seconds!

Processing power for one simulation of the CFD software developed by Rolls-Royce equates to playing a games console for 14 years!

The Rolls-Royce LiftFan swallows enough air to empty a squash court in just over a second!

The Rolls-Royce LiftFan™ rotor can withstand the impact energy equivalent to Harry Kane kicking 150 footballs at one time!

We put the vertical lift in the F-35B Lightning II

Rolls-Royce has over 60 years of unrivalled STOVL experience STOVL power for the Lockheed Martin F-35B Lightning II Did you know?

The Rolls-Royce LiftSystem® which is integrated with the Pratt & Whitney F135 engine is the first to enable Short Take Off and Vertical Landing (STOVL) operations for supersonic capable aircraft. The system is a descendant of the Pegasus engine, comprised of the Rolls-Royce LiftFan®, Driveshaft and Clutch,3BearingSwivelModule(3BSM)andRollPosts.

F-35B photos © Lockheed Martin Corporation

1. The Rolls-Royce LiftFan, a 50-inch, two-stage counter-rotating fan capable of generating more than 20,000 lbf of thrust, is driven from a conventional gas turbine and produces the forward vertical lift.

2. The Driveshaft & Clutch Delivers up to 29,000 shaft horsepower from main engine to the Rolls-Royce LiftFan®.

3. Aircraft roll control is achieved using the Roll Posts mounted in the wings of the aircraft, which provide a further 1,950 lbf of thrust each.

4. The 3BSM is a swivelling jet pipe capable of redirecting the main engine thrust downward to provide the rear vertical lift. The jet pipe can rotate through 95 degrees in 2.5 seconds and passes 18,000 lbf of thrust.