1950 Kayaba Heliplane gyrodyne prototype built from a Cessna 170B light aircraft.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...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