The Douglas X-3 Stiletto fell short of Mach 2 but revealed roll coupling risks and advanced titanium use in early supersonic ...
How NASA used the F-104 Starfighter's razor-thin wing to explore supersonic handling, shuttle approaches, and X-15 support.
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 ...
DARPA’s X-76 experimental aircraft aims to combine helicopter flexibility with jet-like speeds and runway-independent flight.
Company aims to achieve supersonic speed with its Quarterhorse Mk 2.1 before advancing to more powerful aircraft.