Aerospace Garage

PRODUCT PROFILE

GE9X

HIGH-BYPASS TURBOFAN ENGINE

GE9X

United States · verified

COUNTRY
United States
PROGRAMME STATUS
verified

Specifications

Function
Provides primary propulsion and onboard power generation for long-haul wide-body commercial aircraft.
Platform fit
The engine is the exclusive powerplant for the Boeing 777X series, including the 777-8 and 777-9 variants.
Commercial model
Available as original equipment manufacturer hardware typically bundled with comprehensive 'TrueChoice' maintenance and repair contracts.
Deployment status
The engine has received FAA type certification and is currently engaged in the airframe flight test programme.
Evidence to demand
Publicly disclosed order books for the 777X airframe indicate a backlog of several hundred units required for delivery.
Technical architecture
Utilises a twin-spool design with a 134-inch diameter front fan and a high pressure ratio compressor.

Description

The GE9X is a high-bypass turbofan engine developed by GE Aerospace specifically to power the Boeing 777X family of wide-body aircraft. It represents the latest evolution in the GE90 lineage, incorporating advanced materials such as carbon fibre composite fan blades and ceramic matrix composites in the hot section. The engine is distinguished by its physical scale, featuring the largest front fan ever produced for a commercial jet, designed to achieve significant improvements in fuel burn and emissions over previous generations. Primary acquisition is driven by major international airlines that have placed orders for the Boeing 777-8 and 777-9 airframes. Key confirmed customers for the engine-airframe combination include Emirates, Qatar Airways, Lufthansa, Singapore Airlines, and British Airways. Sales are typically structured through long-term service agreements and total engine life-cycle support packages, reflecting the high capital intensity and specialised maintenance requirements of the propulsion system. The Garage desk notes that technical risks are primarily tied to the certification timeline and entry-into-service schedule of the 777X airframe, which has faced multiple delays. Buyers should verify the durability of the high-pressure compressor components and the maturity of the CMC parts under high-cycle regional operations. We would seek to confirm the latest fuel efficiency data from flight testing compared to original design benchmarks before assessing long-term asset value.

Linked stories

LAST VERIFIED

26 Sept 2026

SOURCE CITATION

Maker website on record

Connected across the platform

Boeing 777XGE90GEnxIHI Corporation (IHI株式会社)Safran Aircraft Enginescompanysafran-group.comlast verified 6 Sept 2026MTU Aero Engines