U.S. Centennial of Flight Commission home page
The Berliner 1921 single-wing rotary-powered helicopter had deflector vanes at the wing tips

The Berliner 1921 single-wing rotary-powered helicopter had deflector vanes at the wing tips.

Credits - Courtesy of Aerofiles

Home  |  About Us  |  Calendar  |  Wright Brothers History  |  History of Flight  |  Sights & Sounds  | Education  |  Links |  Sitemap