The F-35's development costs are well over $1 trillion, but then again it's really three planes in one. Here's what sets each apart from the others.

Born from a radical idea to take off vertically, the British-designed Harrier Jump Jet became the world’s first successful V/STOL fighter. Using Rolls-Royce Pegasus thrust-vectoring engines, it could ...

A San Diego defense technology company unveiled an artificial intelligence-piloted fighter jet Tuesday that can take off vertically without runways, accelerating the Pentagon's push toward a future ...