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The Rolls-Royce Pegasus is a British turbofan engine originally designed by Bristol Siddeley. It was manufactured by Rolls-Royce plc. The engine is not only able to power a jet aircraft forward, but also to direct thrust downwards via swivelling nozzles. [1] Lightly loaded aircraft equipped with this engine can manoeuvre like a helicopter.
Improved version with FLIR, an upgraded cockpit with night-vision goggle compatibility, and the more powerful Rolls-Royce Pegasus 11 engine. [149] AV-8B Harrier II Plus Similar to the Night Attack variant, with the addition of an APG-65 radar and separate targeting pod. It is used by the USMC, Spanish Navy, and Italian Navy. Forty-six were ...
E2 was a static test airframe, and did not ever fly. E3 was furnished with both Pegasus and RB162 lift engines installed, being intended to evaluate the design's vertical flight mode. [citation needed] The four Rolls-Royce RB162 lift engines seen from the bottom of a nacelle. The design of the Do 31 was heavily reliant upon its engine ...
A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance.
The equivalent vanes on the Rolls-Royce Nene reduced the inlet losses to the extent that thrust was increased from 4,000 to 5,000 lb at the same turbine temperature. [ 103 ] Modern subsonic inlet with rounded inlet lip to prevent boundary layer separation in cross winds on the ground and high angle of attack during take-off rotation.
the rear of the F135 engine (nozzle rotated down) that powers the Rolls-Royce LiftSystem. Instead of using separate lift engines, like the Yakovlev Yak-38, or rotating nozzles for engine bypass air, like the Harrier, the "LiftSystem" has a shaft-driven LiftFan, designed by Lockheed Martin and developed by Rolls-Royce, [3] and a thrust vectoring nozzle for the engine exhaust that provides lift ...
The weight savings from deleting a bearing and associated parts listed below gave an engine with a thrust of 5,000 lbf but weighing only 800 lb. [2] [i] Eliminating the usual centre support bearing for the shaft joining the compressor and turbine meant the shaft would whirl, assuming a bowed shape, and damage the engine. Whirling was prevented ...
Only thrust-vectoring stood the test of time, with the introduction of the Rolls-Royce Pegasus bypass turbofan engine having separate vectoring nozzles for the cold fan (bypass) and hot exhaust flows, which first flew in the Hawker P.1127 VTOL research aircraft of 1960.