The Italian genius Leonardo of the Vinci drew, in 1480, a machine that raised flight horizontally.
It inspired to the connoisseur in aeronautics Igor Sikorski, an American of Russian origin, that started to study the subject in 1908.
He has controversies on the first flights of helicopter. It would have been carried through for the Frenchman Étienne Oehmichen, who flied 1 kilometer in 1924.
Others recognize the Italian Of Ascanio as the pioneer, in 1930.
In any way, the models still presented problems.
Until the first airplane of Igor, Sikorsky VS-300 (1939), would come to be the definitive project of all the future helicopters.
Its idea was the first helicopter of rotor only e was received readily by the manufacturers.
The vehicle could be controlled, pairava when going up and to go down vertically, beyond flying stops backwards and for the sides.
Sikorsky filed the plans of production in mass during World War II to work in other aeronautical projects.
But in 1945, it immediately dived in the work to perfect its previous project and to conceive military and domestic ships, whose intentions incluíam operations of aid and rescue beyond missions of combat in low altitudes.
Two ancestral ones of the helicopter had been: the gyroplane, created for the Frenchman Louis Breguet, in 1907, and the autogyro, a species of armed aeroplano, in the superior part, of a helix that allowed it to go up and to lower vertically, idealized for the woollen Spaniard Juan Cierva, in the year of 1922.