We Put the Vertical Lift in the F-35B Lightning II

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

3. Aircraft roll control is achieved using the Roll Posts mounted in the wings of the aircraft, which provide a further 2. The Driveshaft & Clutch 1,950 lbf of thrust each. Delivers up to 29,000 shaft horsepower from main engine to the Rolls-Royce LiftFan®.

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

Harrier GR9 - 2008 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.

Hawker Siddeley Harrier - 1967–1970s

Lockheed Martin JSF X-35B concept Boeing JSF X-32B concept demonstration aircraft 1996 - 2001 demonstration aircraft 1996 - 2001

Pegasus powered STOVL Harriers The power transmitted to the Rolls-Royce The Rolls-Royce LiftFan swallows enough air to are still in operation today with: LiftFan (29,000 horsepower) is enough to raise empty a squash court in just over a second! • United States Marine Corps ten elephants to the top of the Empire State • Italian Navy (Marina Militare) Building in just seven seconds! Thrust Measuring Rig or ‘Flying Bedstead’ gathered • Spanish Navy (Armada Española) useful data for the P.1127 (Harrier) project.

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.

The Rolls-Royce LiftFan™ Processing power for rotor can withstand the one simulation of the impact energy equivalent CFD software developed August 1989. Pegasus 11-61 engine sets BF-1 - 2010 to Harry Kane kicking 150 by Rolls-Royce equates to time-to-height records at 3,000m footballs at one time! playing a games console (36 seconds), 6,000m (55 seconds) and for 14 years! 9,000m (81 seconds).