GE Begins Flight Trials of "World's Largest Jet Engine" Written 16 March 2018

Reuters reported that GE has begun flight testing of the “world’s largest jet engine after delays caused by technical problems, the US conglomerate said on Wednesday.” The test was conducted aboard a “special Boeing 747 test aircraft” that departed from Victorville, California, with the “new E9X engine mounted under its left wing, dwarfing the plane’s three other engines.” The new engine, as “wide and tall as the fuselage of a Boeing 737,” is being developed for Boeing’s new 777X long-haul variant, “which is due to enter service in 2020.” GE’s engineers “completed their test list and ensured key characteristics were working properly, GE said in a statement confirming the flight.” The company expected to begin flight trials in December, but announced in February that an engine glitch required the redesign of a part in its compressor. The flight marks the beginning of months-long testing before the aircraft “takes to the skies in the first quarter of next year.” GE said that it feels “very confident” it will receive safety certification, according to a spokeswoman. GE partnered with Safran, IHI Corp, and MTU Aero Engines on the E9X. 
More Info (Reuters)