Coaxial helicopters Marquis pateras-pescara pioneer of aviation from 1911 to 1936
Coaxial helicopters equipped with autorotation and the first joystick for helicopter. Apparatus are still in the Museum of Air and Space. IT has been under restoration since 2006 Dugny. He made an appearance courrte December 15, 2007. It is still in Dugny.That Raul Pateras Pescara Argentina Castelluccio (1890-1966), who after coming to France for 8 [...]