Ewald Rohlfs Reaches 2,339m with the Focke-Wulf FW61 Helicopter (1937)
The Focke-Wulf Fw 61 was the first successful, practical, and fully controllable helicopter, first flown in 1936. It was also known as the Fa 61, as Focke began a new…
Schlagwort: Ewald Rohlfs