Newbauer Hummingbird circa 1928. Some sort of rotating disc propulsion that was doomed from the start!
Here is the Aerofiles entry:
Hummingbird 1928 = Ornithopter-type craft; two revolving disks on top, and wings made from lateral vanes, all powered by a four-cylinder motorcycle engine. No record found of flight. US patent #1,743,327 issued in 1930.
Source: EAA Newsletter archive, courtesy of Ted Businger.
Here is the Aerofiles entry:
Newbauer
(Valentine) Newbauer Vertical Airplane Co, Monterey Park CA. Hummingbird 1928 = Ornithopter-type craft; two revolving disks on top, and wings made from lateral vanes, all powered by a four-cylinder motorcycle engine. No record found of flight. US patent #1,743,327 issued in 1930.
Source: EAA Newsletter archive, courtesy of Ted Businger.