General Electric GE9X

For the similarly-named engine which powers the Boeing 787 and 747-8, see General Electric GEnx.

GE9X
A GE9X installed on a Boeing 777X during its roll-out in March 2019
TypeTurbofan
National originUnited States
ManufacturerGE Aerospace
First runApril 2016
Major applicationsBoeing 777X
Developed fromGeneral Electric GE90, General Electric GEnx

The General Electric GE9X is a high-bypass turbofan developed by GE Aerospace exclusively for the Boeing 777X. It first ran on the ground in April 2016 and first flew on March 13, 2018; it powered the 777-9's maiden flight in early 2020. It received its Federal Aviation Administration (FAA) type certificate on September 25, 2020. Derived from the General Electric GE90 with a larger fan, advanced materials like ceramic matrix composites (CMCs), and higher bypass and compression ratios, it was designed to improve fuel efficiency by 10% compared to the GE90. It is rated at 110,000 lbf (490 kN) of thrust, which is 5,000 lbf (20 kN) less than the highest thrust variant of the GE90, the -115B.

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