The Sack AS-6 was a German prototype circular-winged aircraft built privately during the Second World War. == Design and development == In July 1938, local farmer Arthur Sack entered his AS-1 circular-winged model in the first Reich-Wide Contest for Motorized Flying Models, which was held at Leipzig.
The Sack AS-6 was a German prototype circular-winged aircraft built privately during the Second World War. == Design and development == In July 1938, local farmer Arthur Sack entered his AS-1 circular-winged model in the first Reich-Wide Contest for Motorized Flying Models, which was held at Leipzig.
Source: Wikipedia "Sack AS-6" · CC BY-SA 4.0
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