Built in 1928 in Hollywood, California, by Newbauer Vertical Airplane Co, the Hummingbird was an ornithopter-type craft with two revolving disks on top, and wings made from lateral vanes, all powered by a four-cylinder motorcycle engine.
The Hummingbird weighed 3496 lb and carried 44 Imp.Gal of fuel.
There is no record found of flight and US patent #1,743,327 was issued in 1930.
All Aero 