Oblique wing
An aircraft design in which the entire main wing pivots on a single axis to sit at an angle to the fuselage, changing its sweep with flight speed to improve efficiency. NASA's AD-1 was the best-known test aircraft.
NASA's AD-1 was an oblique wing aircraft — one wing pointing forward, the other backward. At supersonic speeds, swept wings reduce drag, but sweeping both shifts the center of lift. The oblique wing solved this by rotating both wings on a single pivot.
0