the helicopter was found, in forty-third year the aircraft designer founded his own airline sekorsky aerocraft began serial production of helicopters of various modifications, well, for example, i will say during the years of the second world war, that is, from thirty -ninth to 45th year , 420 helicopters c-47, c-48 and c-49 were produced for the american army. a huge number, here in front of you is the c-19 chekso, this is the same machine that was quite seriously used in syria, it has already begun to be tested by the army in the transportation of the wounded and the transportation of goods, mainly it is used for this, there was a special suspension, as you can see, it was possible to lift on cables, which had never been done before, but it was possible to lift quite serious loads. two pilots, a cabin moved up, and sekorsky's favorite scheme of a helicopter with one propeller, here is a rather curious helicopter, a helicopter with special two, look at these suspensions, which allowed the machine to land on water too, here is sikorsky standing next to him, showing the pilot how to lift the ai