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The Zeppelin D.I, or Zeppelin-Lindau D.I or Zeppelin D.I (Do), as named in German documents, also sometimes referred to postwar as the Dornier D.I or Dornier-Zeppelin D.I, for the designer,Grosz, 1998, p.12 was a single-seat all-metal stressed skinGrey, 1970, p.580 monocoque cantilever-wing
The Dornier D.I was one of several designs by Claude Dornier to have an all-metal stressed skin monocoque structure, and it was the first fighter to feature such construction and although production was halted prior to the completion of any production versions, it was also the first aircraft with these features to go into production. To reduce the hazards of inflight fires it also had an external fuel tank which may have been jettisonable, according to some sourcesKössler, 1985, p.78 and thick-section cantilever wings for improved aerodynamics. The
biplane
A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While ...
fighter, developed by Claude Dornier while working for Luftschiffbau Zeppelin at their Lindau facility.Grosz, 1998, p.0 It was too late to see operational service with the German Air Force ( Luftstreitkräfte) during World War I.
Development and design
The Dornier D.I was one of several designs by Claude Dornier to have an all-metal stressed skin monocoque structure, and it was the first fighter to feature such construction and although production was halted prior to the completion of any production versions, it was also the first aircraft with these features to go into production. To reduce the hazards of inflight fires it also had an external fuel tank which may have been jettisonable, according to some sourcesKössler, 1985, p.78 and thick-section cantilever wings for improved aerodynamics. The Dornier Do H Falke
The Dornier Do H ''Falke'' was a German single-seat fighter, designed by Claude Dornier and built by Dornier Flugzeugwerke. Although an advanced design for its time, being evaluated by the United States Navy as the Wright WP-1, it did not go in ...
monoplane was developed from it with an enlarged upper wing compensating for the removal of the lower wing.
Operational history
Seven prototypes were built for the development program but it was never used operationally due to the end of World War I. ''Luftstreitkräfte'' (German Air Force) pilots evaluated the type in May and June 1918 and again in October.Grosz, 1998, p.1Grosz, 1998, p.10 German ace Wilhelm Reinhard was killed on 3 July 1918 after a structural failure when it was supposed to have been grounded for structural improvements. There were reports of heavy aileron controls and poor climb rates at altitude. After being fitted with a more powerful BMW IIIa inline-six liquid-cooled engine that reduced the time needed to rate to reach from 25 minutes to 13 minutes, an order was placed for 50 aircraft either in October or November.Grosz, 1998, p.9 These were roughly 50 percent complete when production was halted following the armistice in early 1919. One example went to the US Navy and another to the US Army Air Service, both purchased in 1921 and delivered in 1922, for evaluation of the novel construction methods used.Operators
; *'' Luftstreitkräfte'' - evaluation only ; * United States Navy - one example for evaluation, serialed A6058 * United States Air Service - one example for evaluation, serialed AS.68546, McCook Field Project Number P.241Grosz, 1998, pp.10-13Specifications (BMW engine)
See also
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