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
https://s3-us-west-1.amazonaws.com/h..._heliplane.jpg
Previously:
https://www.homemadetools.net/forum/...789#post171066
https://www.homemadetools.net/forum/...156#post165219
https://www.homemadetools.net/forum/...264#post176938
https://www.homemadetools.net/forum/...233#post150058
https://www.homemadetools.net/forum/...275#post150238
