Friday, May 30, 2008
Pratt & Whitney's F135 Powers First F-35B STOVL-Mode Test
"Completion of this STOVL ground test brings us a step closer to powering
the F-35 Lightning II STOVL variant's first flight in early June," said
The highly integrated STOVL aircraft is driven by mission-control software directed by a pilot. This STOVL test provides confidence that the F135 propulsion system, flight controls, and airframe systems work together, allowing the jet to transition smoothly between horizontal and vertical power modes.
The test objectives included functional checks of the propulsion and flight control software, the lift fan upper and lower doors, the auxiliary inlet doors, and the thrust vectoring three bearing swivel duct and nozzle. Idle power conversions from horizontal to vertical flight were conducted in a sequence of steps to verify standard system operation prior to a fully automated conversion.
This milestone is one of many recent achievements for Pratt & Whitney's
F135 propulsion system. On
Rated at more than 40,000 pounds of thrust, the F135 is the most powerful fighter engine ever built. The technologically advanced F135 is an evolution of the highly successful F119 engine for the F-22 Raptor. By the time the F- 35 enters operation in 2013, the F119 engines will have logged more than 600,000 flight hours and the F135 will have completed more than 16,000 test hours. These achievements will provide maturity and the associated reliability to the F135 engine.
The F135 propulsion system team consists of Pratt & Whitney, the prime
contractor with responsibility for the main engine and system integration;
Rolls-Royce of the
Pratt & Whitney is a world leader in the design, manufacture and service
of aircraft engines, space propulsion systems and industrial gas turbines.
United Technologies, based in
Stephanie Duvall Jennifer Whitlow Pratt & Whitney Military Engines Pratt & Whitney 860.557.1382 860.565.9600 firstname.lastname@example.org email@example.com