The XF-84H was an ambitious project to reverse-engineer a jet-powered F-84 into a prop-driven aircraft capable of achieving near-jet performance. The United States Navy initially had an interest in a ...

On Apr. 5, 1947, the second prototype of the Hughes XF-11 twin-boom aircraft made its first complete flight (takeoff and safe landing), piloted by Howard Hughes. Designed and built by Hughes Aircraft ...

Looking more like a flying egg than a jet fighter, the XF-85 was an unusual aircraft concept with an unconventional method of protecting U.S. heavy bombers at the outset of the Cold War. Conceived as ...