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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]
The 777-8 should feature a 13,000 lb (5.9 t) higher MTOW over the 775,000 lb (352 t) of the 777-9, for an improved range from 8,690 to 9,460 nmi (16,090 to 17,520 km). [ 96 ] Due to the Boeing 737 MAX groundings and the delayed first flight of the 777-9, in 2019 Boeing pushed back design and development of the 777-8 until at least 2021, for ...
Boeing said there are four thrust links on each 777-9 — two on each engine for redundancy. The company said the component is new to the 777-9 and is not used on existing 777s or other planes.
The higher thrust GE90-110B1 and -115B engines, in combination with the second-generation 777 variants -200LR and -300ER, were primary reasons for 777 sales being greater than those of the rival A330/340 series. [19] Using two engines produces a typical operating cost advantage of around 8–9% for the -300ER over the A340-600. [20]
The company said it conducted its first flight on Friday night after receiving Type Inspection Authorization (TIA). The development is a boost for Boeing, which has been grappling with production ...
First delivery of the 777-9 has since been pushed back to 2026, followed by the smaller 777-8 and a freighter version later in the decade. Boeing's other 777X airline customers include Emirates ...
The PW4077 variant used on the United 777-222 nominally produces 77,000 pounds-force (340 kN) of thrust. [21] It is a dual-spool , axial-flow , high bypass turbofan engine , [ 22 ] that is a higher bypass version of the PW4000-94 engine originally fitted to the Boeing 747-400 .
Pages in category "Accidents and incidents involving the Boeing 777" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes .