The XF-84H was an ambitious project to reverse-engineer a jet-powered F-84 into a prop-driven aircraft capable of achieving ...

As part of the Flight Test Files series, which explores groundbreaking aeronautical advancements pioneered by NACA and NASA, ...

Identification of the aircraft was confused for a short time after the crash. A piece of wreckage with the notation “Gilbert XF-120” was found nerby. Air Force spokesmen explained that the XF ...