Why Does The Boeing 747-400 Have 3 Engine Types?
The Boeing 747-400, introduced in the late 1980s, represented a significant evolution of the iconic 747, featuring improved aerodynamics, advanced avionics, and substantially improved fuel efficiency. One distinctive aspect of the 747-400 program was Boeing’s decision to certify the aircraft with three different engine types: the General Electric CF6-80C2, Pratt & Whitney PW4000-94, and Rolls-Royce … Read more