DFS 40 - Delta V


The DFS 40 was designed in 1937 as an all-wing aircraft to allow as many comparisons of different versions of tailless aircraft. The DFS 40 was propelled by a 100 hp Argus engine and was flown by Heini Dittmar at the DFS in Darmstadt in 1939. It showed remarkable performance.

After Lippisch's departure from the DFS in 1939, a miscalculation in the CG caused the aircraft to enter a flat spin and the aircraft was destroyed. The pilot managed to bail out safely.

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DFS 40 Schematic

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DFS 40 in flight

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Drag polar as measured by wind tunnel testing.

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The DFS 40