1950 Kayaba Heliplane gyrodyne prototype built from a Cessna 170B light aircraft.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
Previously:
Kouns-Craft dirigible helicopter - photo
1930 Schroeder S1 cyclogyro - photo
Krucker amphibious autogyro - GIF
Personal air landing vehicle gyrocopter - GIF
Focke-Achgelis Fa 225 rotary wing glider - photo
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