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During the late 1990s, Boeing considered replacement aircraft programs due to slowing sales of the 767 and 747-400.Two new aircraft were proposed. The 747X would have lengthened the 747-400 and improved efficiency, and the Sonic Cruiser would have achieved 15% higher speeds (approximately Mach 0.98) while burning fuel at the same rate as the 767. [2]
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.
A blended winglet is attached to the wing with a smooth curve instead of a sharp angle and is intended to reduce interference drag at the wing/winglet junction. A sharp interior angle in this region can interact with the boundary layer flow causing a drag inducing vortex, negating some of the benefit of the winglet.
The reputation of the Boeing Co. (NYSE: BA) 787 Dreamliner has been battered a number of times over its decade-long development and the manufacturing processes that delayed the launch of the plane ...
Crews are working to replace a Rolls-Royce engine in one of Boeing's (BA) five 787 Dreamliner test jets after the engine experienced a power surge before takeoff. It's not yet clear if the 787's ...
Feb. 25—The Boeing 787-9s are more fuel-efficient, capable of traveling greater distances. The arrival of Hawaiian Airlines' first Boeing 787-9 Dreamliner marks a milestone in the airlines' 94 ...
A rendering of the US Air Force blended wing body aircraft project. A blended wing body (BWB), also known as blended body, hybrid wing body (HWB) or a lifting aerofoil fuselage, [1] is a fixed-wing aircraft having no clear dividing line between the wings and the main body of the craft. [2] The aircraft has distinct wing and body structures ...
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.