The Boeing X-32 is a concept demonstrator aircraft that was designed for the Joint Strike Fighter competition. It lost to the Lockheed Martin X-35 demonstrator...

by Boeing's Phantom Works. Manufactured by Boeing Integrated Defense Systems, the X-45 was a part of DARPA's J-UCAS project. Boeing developed the X-45...

Fighter program. The X-35 was declared the winner over the competing Boeing X-32 and a developed, armed version went on to enter production in the early...

Norway, and formerly Turkey. After a competition between the Boeing X-32 and the Lockheed Martin X-35, the latter aircraft was selected for a contract award...

The Boeing–Saab T-7 Red Hawk, initially known as the Boeing T-X (later Boeing–Saab T-X), is an American–Swedish transonic advanced jet trainer produced...

of Prey Boeing X-40 Boeing X-53 Active Aeroelastic Wing Boeing YC-14 Boeing C-17 Globemaster III Boeing C-22 Boeing VC-25 Boeing C-32 Boeing C-40 Clipper...

Douglas X-36 Boeing X-32 Joint Strike Fighter Boeing Bird of Prey: Stealth fighter UAV demonstrator Boeing A160 Hummingbird: UAV helicopter Boeing X-40 Boeing...

propulsion system, with variants powering both the Boeing X-32 and Lockheed Martin X-35 concept demonstrators. The X-35 won the JSF competition and the production...

The TAI Kaan also called TF ("Turkish Fighter", formerly known as TF-X) and MMU (Milli Muharip Uçak, Turkish for 'National Combat Aircraft'), is a stealth...

which would later be used on Boeing's X-45 unmanned combat air vehicle. As an internal project, this aircraft was not given an X-plane designation. There...