General Electric GE9X
| Technical specifications | |
| Bypass ratio | 10.1: 1 |
| Total pressure ratio | 60: 1 |
| Engine section | stages |
|---|---|
| fan | 1 |
| Low pressure compressor | 4th |
| High pressure compressor | 11 |
| High pressure turbine | 2 |
| Low pressure turbine | 6th |
The GE9X is the GE90 derived Turbofan - engine of the US manufacturer GE Aviation , a subsidiary of General Electric . Located in the high thrust range, it is the exclusive drive for the new Boeing 777 -8 and -9. It is currently (September 2017) the largest jet engine ever built. The first flight test took place on March 13, 2018, mounted on a Boeing 747 as a test vehicle .
General
Instead of a new thrust variant of the GE90, GE decided in February 2012 for a further development under the name GE9X. With a fan increased to 340.36 cm (134 in) and some technological improvements - such as a new eleven-stage high - pressure compressor - GE aims to achieve a fuel saving of 10 percent compared to the GE90-115B. This means that the engine diameter is almost as large as the cabin diameter of a Boeing 737 .
GE specifies the thrust of the engine at 453.7 kN (102,000 lb f ).
On November 10, 2017, the engine broke the Guinness World Record for the most powerful engine in a commercial aircraft (test performance). The GE9x achieved a maximum thrust of 597.4 kN (134 300 lb f ).
Problems
Excessive wear on components in the first stage of the new high-pressure compressor led in 2019 to a component having to be redesigned and delays in the market launch. As a result, there are also delays in the first flight and commissioning of the Boeing 777X .
Individual evidence
- ↑ GE Aviation: GE9X: The World's Biggest Fan of Ice | GE Aviation. May 15, 2017. Retrieved September 5, 2017 .
- ↑ GE9X takes off for the first time. In: FlugRevue. Retrieved March 17, 2018 .
- ↑ https://www.geaviation.com/press-release/ge9x-engine-family/ge9x-engine-goes-airborne
- ↑ GE9X ( Memento of the original from July 25, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . GE Aviation.
- ↑ GE Pushes Envelope With GE9X for New Boeing 777. In: n-tv.de. Retrieved April 23, 2016 .
- ↑ GE9X Breaks GUINNESS WORLD RECORDS ™ Title for Thrust | GE Aviation. Retrieved April 18, 2020 .
- ↑ GE9X wear worries bring new delays to Boeing 777X. Retrieved July 26, 2019 .
