Why Can’t The Boeing 777-300ER Be Powered By Any Other Engine Type?

While some first-generation variants of the Boeing 777 family were optionally powered by the General Electric GE90 engines, Rolls-Royce Trent 800, and the Pratt & Whitney PW4000-112, subsequent generations were exclusively GE-powered. All three engines received a comparable number of orders for the first generation of Boeing 777s, with the Trent 800 being the most popular. And yet Boeing decided to exclusively power the second-generation Boeing 777-300ER and Boeing 777-200LR with the GE90.

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