1 Ergebnisse für: 552.063
-
WW2 German Doblhoff Jet tip Helicopter - YouTube
https://www.youtube.com/watch?v=GF9R9Zq6P9M&NR=1
A quick glimpse of the first test flights of the V2 version of Doblhoff's jet tip powered Helicopter, constructed at the Wiener Neustadter Flugzeugwerke. It ...