The Dornier Do 31 was an experimental VTOL jet transport aircraft developed and built by Dornier for the West German Air Force in the 1960s. Only three were built.
Previously:
Opener BlackFly VTOL aircraft - video
Vertol VZ-2 V/STOL research aircraft - photo
Bell V-280 Valor tiltrotor aircraft - photo and video
SNECMA C.450 Coleoptere VTOL aircraft - photos
Bell Boeing V-22 Osprey unfolding - GIF and photos
Bell Model 65 tiltjet aircraft - photo
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