Cayley's Helicopter
CAYLEY'S HELICOPTER-AEROPLANE With two lateral helicopter rotors to provide lift, and two propellers for propulsion, this is an astonishingly far- sighted proposal
Picture No
13840560
Media ID
45795650
Size
3870px x 2726px
(2.0MB)
Credit
Mary Evans Picture Library
Source
unnamed artist in Mechanic's Magazine' reproduced in Dollfus & Bouche, Histoire de l'Aeronautique, page 55
Date
1843
