GE Aerospace is building the world's largest jet engine for Boeing's new 777X, and it's using a giant 747 to test it. We ...

Rolls-Royce is retiring its Boeing 747-200 "Flying Test Bed" (FTB), registered N787RR, after 20 years and over 2,000 hours of engine development testing. The FTB played a crucial role in developing ...

General Electric is currently developing the largest turbofan engine ever to be used in commercial aviation. The GE9X is being made to power the Boeing 777X next generation widebody airliner, as the ...