X-41 is the designation for a
still-classified U.S. military spaceplane. Specifications or photos of the program have not been released to the public yet; as a result not much is known about its goals. It has been described as an experimental maneuvering re-entry vehicle capable of transporting a 1,000 lb payload on a
suborbital trajectory at
hypersonic speeds and releasing that payload into the
atmosphere.
This vehicle is now a part of FALCON (Force Application and Launch from Continental United States) program sponsored by DARPA and NASA.
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