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Helicopter, the device is heavier than air, capable to fly up vertically and to hang over the necessary point, Leonardo da Vinci tried to develop still great and awful. At a dawn aircraft many designers tried to design the helicopter, but further autofat business long did not move. The first to whom the brilliant idea has come to use the second screw that the helicopter did not twist in air together with the basic screw, was the former Russian designer Igor Ivanovich Sikorsky. However, Sikorsky far managed not at once to realise is high-grade the working car. It experimented since 10th years of the XX-th century, in parallel working out fighters and heavy bombers. To create flying helicopter it was possible only in 1943 in the USA, but in large quantities new it was not possible to participate in the Second World War to the technician. But any military conflict of second half of XX-th century without helicopters did not manage any more. New technicians on advantage have estimated advantages both military and civil; nowadays helicopters are used in the majority of spheres of a national economy.

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