Herrick HV-2A Vertaplane. An early VTOL (vertical takeoff and landing) aircraft from the 1950s with both a helicopter rotor system and conventional airplane wings.




Previously:

SNECMA C.450 Coleoptere VTOL aircraft - photos
Flying jeep Curtiss-Wright VTOL quadrotor helicopter - photo
Bell Boeing V-22 Osprey unfolding - GIF and photos