According to DailyMail, the corporation General Electric (GE) began testing the world's largest turbofan engine. The first tests of GE9X started at the polygon located in the woods near Peebles, Ohio, in March 2016.
In February 2012, GE announced the beginning of studies on a slightly smaller derivative engine, dubbed the GE9X, to power the new Boeing 777-8X/9X aircraft.
Engine GE9X has an overall thrust decrease of 99,500 lbf per engine for the -9X, and a derated 88,000 lbf version for the -8X. The new engines are expected to contribute to a 10% increase in fuel efficiency with a planned 10:1 bypass ratio and 60:1 overall pressure ratio. A new 11-stage high-pressure compressor developing a pressure ratio of 27:1 is specified.
It is provided with 16 carbon-fiber blades and the combustion chamber TAPS III.
According to GE, only GE9X has such high degree of compression. The GE9X composite materials can withstand temperatures of up to 1,3 thousand Degrees Celsius.
The General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings ranging from 74,000 to 115,000 lbf (330 to 510 kN).