George Cayley's design (side elevation)
George Cayley's design (side elevation) for contra-rotating tandem airscrews for airship propulsion the airscrews have curved blades mounted on rods radiating from the hubs the whole mounting can be swivelled. 4 March 1837
Picture No
10841866
Media ID
48053126
Size
4000px x 3020px
(1.4MB)
Credit
© The Royal Aeronautical Society (National Aerospace Library) / Mary Evans Picture Library
Source
Photograph from The Royal Aeronautical Society Archive
