Cayley's Aerial Screw

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A flying machine invented by George Cayley. It is an early model of the helicopter.

Source

Pettigrew, J. Bell Animal Locomotion (New York, NY: D. Appleton & Company, 1874)

Downloads

TIFF (full resolution)

1783×2400, 519.6 KiB

Large GIF

760×1024, 84.5 KiB

Medium GIF

475×640, 41.6 KiB

Small GIF

237×320, 13.5 KiB