EC71-2774
The M2-F3 Lifting Body was air-dropped from NASA’s B-52 mothership at the NASA Flight Research Center, Edwards, CA. A fleet of lifting bodies flown at the FRC from 1963 to 1975 demonstrated the ability of pilots to maneuver and safely land a wingless vehicle designed to fly back to Earth from space and be landed like an aircraft at a pre-determined site.
Early flight testing of the M2-F1 and M2-F2 lifting body reentry configurations had validated the concept of piloted lifting body reentry from space. When the M2-F2 crashed on May 10, 1967, valuable information had already been obtained and was contributing to new designs.
NASA pilots said the M2-F2 had lateral control problems, so when the M2-F2 was rebuilt at Northrop and redesignated the M2-F3, it was modified with an additional third vertical fin – centered between the tip fins – to improve control characteristics.
First flight of the M2-F3, with NASA pilot Bill Dana at the controls, was June 2, 1970. The modified vehicle exhibited much better lateral stability and control characteristics than before, and only three glide flights were necessary before the first powered flight on Nov. 25, 1970. Over the next 26 missions, the M2-F3 reached a top speed of 1,064 mph (Mach 1.6). Highest altitude reached by vehicle was 71,500 feet on Dec. 20, 1972, the date of its last flight, with NASA pilot John Manke at the controls.
NASA donated the M2-F3 vehicle to the Smithsonian Institute in December 1973. It is currently hanging in the Air and Space Museum along with the X-15 aircraft number 1, which was its hangar partner from 1965 to 1969.August 10, 1971NASA Photo › Read M2-F3 Project Description