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The list price was $12 million in 2011. [26] At the start of its production in 2016, each GTF was costing PW $10m to build, more than the sale price, but should become less than $2m per engine. [27] MTU provides the first four stages of the high-pressure compressor, the low-pressure turbine and other components.
The Pratt & Whitney J58 (company designation JT11D-20) is an American jet engine that powered the Lockheed A-12, and subsequently the YF-12 and the SR-71 aircraft. It was an afterburning turbojet engine with a unique compressor bleed to the afterburner that gave increased thrust at high speeds.
The compressed air can be supplied from an on-board auxiliary power unit (APU), a portable gas generator used by ground crew or by cross feeding bleed air from a running engine in the case of multi-engined aircraft. [19] The Turbomeca Palouste gas generator was used to start the Spey engines of the Blackburn Buccaneer.
A three-phase motor is more compact and less costly than a single-phase motor of the same voltage class and rating, and single-phase AC motors above 10 hp (7.5 kW) are uncommon. Three-phase motors also vibrate less and hence last longer than single-phase motors of the same power used under the same conditions. [32]
The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the engine nose cone, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.
The Rolls-Royce Trent XWB is a high-bypass turbofan produced by Rolls-Royce Holdings.In July 2006, the Trent XWB was selected to exclusively power the Airbus A350. [2] The first engine was run on 14 June 2010, [3] it first flew on an A380 testbed on 18 February 2012, [4] was certified in early 2013, [5] and first flew on an A350 on 14 June 2013. [6]
The Rolls-Royce RB211 is a British family of high-bypass turbofan engines made by Rolls-Royce.The engines are capable of generating 41,030 to 59,450 lbf (182.5 to 264.4 kN) of thrust.
GE-J79-3 and Lockheed YF-104A Starfighter XJ79-GE-1 Prototype. First ground static test run on 8 June 1954 produced 14,350 lbf (64 kN) with afterburner. [17] YJ79-GE-1 Flight test engines were designated YJ79-GE-1. J79-GE-2 Powered the McDonnell F4H-1 Phantom (F-4A), 16,100 lbf (72 kN) of afterburner thrust. J79-GE-2A essentially similar to the ...