German Helicopters, 1928–1945 9780887402890, 0887402895

Among the makers of these unusual aircraft were Focke-Wulf, Flettner and Wiener-Naust dter.

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English Pages 47 [51] Year 1990

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German Helicopters, 1928–1945
 9780887402890, 0887402895

Polecaj historie