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The General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aerospace for the Boeing 777, with thrust ratings from 81,000 to 115,000 pounds-force (360 to 510 kilonewtons).
In February 2012, GE announced studies on a more efficient derivative of the GE90, calling it the GE9X, to power both the -8 and -9 variants of the new Boeing 777X.It was to feature the same 128 in (325 cm) fan diameter as the GE90-115B with thrust decreased by 15,800 lbf (70 kN) to a new rating of 99,500 lbf (443 kN) per engine. [1]
GEnx on 747-8I prototype. As of 2016, the GEnx and the Rolls-Royce Trent 1000 were selected by Boeing following a run-off between the three big engine manufacturers. The GEnx uses some technology from the GE90 turbofan, [1] including swept composite fan blades and the 10-stage high-pressure compressor (HPC) featured in earlier variants of the engine.
The GE90 engine runs the Boeing 777, and the GE9X will be the sole engine on the 777X. GE engines also power the Boeing 747, 787, and Airbus A330 widebodies. ... (Forward) Chart. GE EV to EBITDA ...
For comparison, some of the earliest GE90 engines aboard Boeing 777s kicked out 'just' 74,000 pounds. ... puts out over 100,000 pounds of thrust. For comparison, some of the earliest GE90 engines ...
General Electric used its 747-100 testbed in the 1990s for the GE90 which powers the Boeing 777-300ER, 777-200LR and 777F. GE and competitor Rolls-Royce were selected by Boeing to power its new 787. GE Aviation's offering is the GEnx, a development of the GE90. The engine was also the exclusive power plant on the Boeing 747-8.
TSFC or SFC for thrust engines (e.g. turbojets, turbofans, ramjets, rockets, etc.) is the mass of fuel needed to provide the net thrust for a given period e.g. lb/(h·lbf) (pounds of fuel per hour-pound of thrust) or g/(s·kN) (grams of fuel per second-kilonewton). Mass of fuel is used, rather than volume (gallons or litres) for the fuel ...
Rocket engines [14] Armstrong Siddeley Alpha; Armstrong Siddeley Beta; Armstrong Siddeley Delta; Armstrong Siddeley Gamma; Armstrong Siddeley Screamer; Armstrong ...