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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.
The first FADEC in service was the Rolls-Royce Pegasus engine developed for ... causing loss of thrust on up to three engines have been ... within its limits. (see note)
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 ...
An RAF Harrier GR.7A at RIAT 2005 The GR.7A is a GR.7 with an uprated Rolls-Royce Pegasus 107 engine. The Mk 107 engine provides around 3,000 lbf (13 kN) extra thrust than the Mk 105's 21,750 lbf (98 kN) thrust, increasing aircraft performance during "hot and high" and carrier-borne operations.
The GR7A feature an uprated Pegasus 107 engine. GR7As upgraded to GR9 standard retain the A designation as GR9As. The Mk 107 engine provides around 3,000 lbf (13 kN) extra thrust over the Mk 105's 21,750 lbf (98 kN) thrust. GR.9 The GR9 is an upgrade of the GR7, focused on the Harrier II's avionics and weapons. Upgraded under the JUMP programme ...
Combined with thrust from the LiftFan (20,000 lbf or 89.0 kN) and two roll posts (1,950 lbf or 8.67 kN each), the Rolls-Royce LiftSystem produced a total of 41,900 lbf (186 kN) of thrust. [35] This compares with the maximum thrust of 23,800 lbf (106 kN) for the Harrier's Rolls-Royce Pegasus engine.
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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.