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srmalloy said...

The Triebflügel wasn't the only tailsitter that WWII Germany researched; the Messerschmidt Wespe was a design with an annular wing like the French Coleoptere, but with a propellor in the gap between the fuselage and the wing, making it a ducted-fan design.

Jun 11, 2012, 3:43:54 PM

Posted to History of the Tailsitter Airplanes