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The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aerospace for the Boeing 747-8 and 787. The GEnx succeeded the CF6 in GE's product line.
The GEnx engine and redesigned wing are more efficient: Boeing stated that compared to the 747-400, the -8I was to be 16% more fuel-efficient, have 13% lower seat-mile costs with nearly the same cost per trip, and have a 30% smaller noise footprint area. [141] Boeing stated that the 747-8I was the world's fastest commercial jet. [142]
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General Electric GEnx The CFM International LEAP ("Leading Edge Aviation Propulsion") is a high-bypass turbofan engine produced by CFM International , a 50–50 joint venture between American GE Aerospace and French Safran Aircraft Engines .
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).
Engine Alliance GP7000 turbofan awaiting installation on an Airbus A380 GP7000 inspection. Originally intended to power Boeing Commercial Airplanes' cancelled 747-500X/-600X, the engine has since been pushed for Airbus' A380-800 superjumbo.
It would better compete with the 777-300ER and its 8–9% lower fuel burn than the A340-600: improved General Electric GEnx or Trent 1500 engines would erode this by 6–7%. [51] The Trent 1500 would keep the Trent 500's 2.47 m (97 in) fan diameter and nacelle , with the smaller, advanced Trent 1000 core and a revised LP turbine for a bypass ...
The Rolls-Royce Trent 1000 is a high-bypass turbofan engine produced by Rolls-Royce, one of the two engine options for the Boeing 787 Dreamliner, competing with the General Electric GEnx. It first ran on 14 February 2006 and first flew on 18 June 2007 before a joint EASA/FAA certification on 7 August 2007 and entered service on 26 October 2011.