National Museum of the United States Air Force on Instagram: "Bensen X-25A Gyrocopter (Drone View) In early 1968, the U.S. Air Force ordered three X-25 type aircraft to test methods of improving the odds of a downed flyer’s escape. At the time, the USAF was suffering heavy losses in the Rolling Thunder air campaign over North Vietnam. The unpowered Bensen X-25 Discretionary Descent Vehicle (also called a “Gyroglider”) theoretically could be stowed in an aircraft, ejected with the pilot and deplo