There's a new X-plane in town. Bell Textron's tilt-rotor aircraft being built for DARPA's Speed and Runway Independent Technologies (SPRINT) program, which aims to combine the features of a helicopter ...

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 Defense Advanced Research Projects Agency is channeling tens of millions of dollars into Aurora Flight Sciences for two experimental aircraft programs that together could redefine how the U.S.

The X-76 is the latest in a long series of experimental X-planes developed by the Defense Advanced Research Projects Agency (DARPA).

DARPA’s X-76 experimental aircraft aims to combine helicopter flexibility with jet-like speeds and runway-independent flight.

The Defense Advanced Research Projects Agency has advanced development of the X-76 experimental aircraft under its SPeed and Runway INdependent Technologies, or SPRINT, program. DARPA said Monday ...

Bell’s DARPA SPRINT demonstrator has received the X-76 designation after passing Critical Design Review, with flight testing planned for early 2028.

As we reported in our article about the new Chinese design, an ekranoplan uses the aerodynamic concept of ground effect to travel at high speeds just above the surface of water (or, less commonly, ...