The Focke-Wulf Fw 61 is often considered the first practical, functional helicopter, first flown in 1936.
By early 1937, the second prototype, V 2 D-EKRA, was completed and flown for its first flight. On 10 May 1937, it accomplished its first autorotation landing with the engine turned off.
In February 1938, the Fw 61 was demonstrated by Hanna Reitsch indoors at the Deutschlandhalle sports stadium in Berlin.
[ Ссылка ]
