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Source qoute and picture: http://avia.russian.ee/helicopters.htmlThe Austrian engineer, Paul Baumgartl, concerned himself during the Second World War with the design of small single-seat helicopters, in the suburbs of Vienna. It is not certain whether his work was sponsored by the German Government, but his machines were in the same category as those of Nagler-Rolz. Baumgartl's first product was the Heliofly I of 1941, which was little more than a strap-on autogyro glider for sporting use.
http://www.stalingrad.com.ru/history/fo ... uik-15.jpgRosselsprung wrote:Who's "house" is this?