GE9X CMC testing bodes well for 777X

GE has been performing CMC testing for the GE9X engine for the 777X program. The first phase of endurance testing has gone extremely well, which bodes well for the efficiency goals for the aircraft.

Boeing plans for a 10% improvement in fuel consumption for the 777-9X. To do that GE has to increase temperatures and pressures in the engine to higher than normal alloys can withstand.

Round one of testing included an unplanned hard surge during one of the tests. According to GE the CMCs withstood the surge perfectly, and suffered no damage related to it.

www.flightglobal.com...

a reply to: Zaphod58

That series of GE engines are beasts. It's hard to get a sense of just how huge they are till you drive past one on the back of a semi, on it's way to Everett.

a reply to: Sammamishman

The 9X is even bigger. The 90-115B diameter is 128 inches. The 9X diameter is 132 inches.