Experimental autogyro mail shuttle landing in Washington DC,USA. An autogyro takes off like an aeroplane,relying on its forward motion to rotate the rotor blades and provide upwards lift. A helicopter,in contrast,uses an engine to power its rotor. Photographed on 19th May 1938 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 4724 px × 3886 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |