NASA M2F2
After the tests with the M2F1 airframe, NASA Dryden continued investigating lifting bodies with the M2F2 program. Lifting bodies are strange sort of aircraft which don’t rely on wings or tails for aerodynamic lift. Instead, the airfoil is shaped to create a high pressure zone underneath the plane, creating lift.
The M2F2 program expanded on the M2F1 program, adding a metal airframe, retractable landing gear, and a rocket engine.
The NASA lifting body program continued with the M2F3, HL-10, and the X-24, and would result in the design of the space shuttle program in the 1980s.