Sir George Cayley's drawings
Sir George Cayley's improved helicopter model. (a) Plan. (b) Elevation, partly in section, showing the stem resting in the hollowed out handle where the wound string is accommodated
Picture No
10839313
Media ID
48050808
Size
4000px x 2171px
(1.2MB)
Credit
© The Royal Aeronautical Society (National Aerospace Library) / Mary Evans Picture Library
Source
Photograph from The Royal Aeronautical Society Archive
