Westinghouse J40

The Westinghouse J40 was to be a high performance afterburning turbojet engine. It was intended by the Bureau of Aeronautics, in early 1946, to power several fighter aircraft, with a rating of 7,500 lbf (33 kN) thrust at sea level static conditions, but a more powerful 11,000 lbf (49 kN) thrust version for the McDonnell F3H Demon proved to be a failure. After a troublesome and delayed development program, failures in service led to the loss of aircraft and pilots and grounding of all J40 powered aircraft.
After the program was called a "fiasco" and an "engine flop", the J40 program was terminated in 1955, by which time all the aircraft it was to power were either grounded, cancelled or redesigned to use alternative engines. The J40's failure was among those that affected the most military programs and produced the most unflyable aircraft, and would lead to the downfall of the engine division of Westinghouse. In 1953 Westinghouse worked with Rolls-Royce to offer engines...