DFS 40

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DFS 40
KN Lippisch DFS40 1937.jpg
Two-sided view of the DFS 40
Type: Experimental airplane
Design country:

German Reich NSGerman Reich (Nazi era) German Empire

Manufacturer:

DFS

First flight:

1939

Number of pieces:

1

The DFS 40 Delta V , also known as the Delta 40, was a tailless test aircraft from the German Research Institute for Glider Flight (DFS).

development

The aircraft was designed as a further development of the DFS 39 Delta IVc. The center wing was profiled extremely thick and took the pilot in a lying position. The plan was to install the As-8 engine at the rear of the pilot; and this was supposed to drive a pusher propeller by means of a long-distance shaft. The front area of ​​the aircraft was glazed. The rest of the structure of the wing corresponded to that of the DFS 39 including the hanging wing tips. With the wing blended with the rudimentary fuselage, the DFS 40 can be seen as the first successful attempt at the blended wing body concept.

However, only towing attempts as a sailor were carried out. After Alexander Lippisch's departure from DFS to Messerschmitt, Rudolf Opitz continued the flight test , but fell into a forest on a test flight in 1939 because the center of gravity had been shifted too far back and the machine could therefore no longer spin out of flat .

Technical specifications

DFS 40 - Delta V

  • Span: 12.0 m
  • Length: 5.10 m

literature

  • Alexander Lippisch, Fritz Trenkle : A triangle flies - the history of the Delta aircraft up to 1945 . Motorbuch, Stuttgart 1976, ISBN 3-87943-467-0 .
  • Wolfgang Späte: The top secret Vogel Me 163. Your pilots, your designers, your missions . Verlag für Wehrwissenschaften, Munich 1983, ISBN 3-89555-142-2 .
  • Bruno Lange: Type manual of German aviation technology . In: German aviation . tape 9 . Bernard & Graefe, Koblenz 1986, ISBN 3-7637-5284-6 , pp. 114 .
  • Stephen Ransom, Hans-Hermann Cammann: Me 163 Rocket Interceptor Volume 1 . ISBN 1-903223-13-X (English).