DARPA has assigned the designation X-76 to the Speed and Runway Independent Technologies (SPRINT) project, a Bell proof-of-concept technology demonstrator for a high-speed tiltrotor. The DARPA ...

The U.S. military is developing a new experimental aircraft known as the X-68A and looks a lot like a cruise missile that is also capable of launching its own missiles.

Aviation, as humanity has been experiencing for the past 120 years or so, means an aircraft needs engines to take off and fly, wings to keep it in the air, and physical control surfaces (stabilizers, ...