This day marked the first flight ot the German helicopter - the Focke-Wulf Fw 61. It was designed by engi ...
This day marked the first flight ot the German helicopter - the Focke-Wulf Fw 61. It was designed by engineer Henrich Focke, who founded the company known as “Focke-Wulf”. The Focke-Wulf Fw 61 had two ...