Friedrichshafen D.I

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D.I
Friedrichshafen D.I German aircraft.jpg
Postcard of the first prototype of the Friedrichshafen D.I circa 1917
RoleFighter
Manufacturer Flugzeugbau Friedrichshafen
First flight1917
StatusPrototype only
Primary user Luftstreitkräfte
Number built2
Developed from Friedrichshafen FF.43

The Friedrichshafen D.I (company designation Friedrichshafen FF.46) was a German single-seat fighter plane developed by the Flugzeugbau Friedrichshafen during the First World War. Two prototypes were flown in 1917, but it was judged inferior to the Albatros D.III then in production and no further production ensued.

Contents

Background and description

The Flugzeugbau Friedrichshafen aircraft manufacturing company, after having failed to sell the FF.43 fighter floatplane to the Imperial German Navy's (Kaiserliche Marine) Naval Air Service (Marine-Fliegerabteilung) in 1916, modified its design for land service in an attempt to sell it to the German Army's (Deutsches Heer) Inspectorate of Flying Troops (Inspektion der Fliegertruppen) (Idflieg). The Army accepted Friedrichshafen's proposal in September and ordered three prototypes, only two of which are known to have been completed. [1]

Although the D.I was developed from the FF.43, they did not share any components. The D.I replaced the floats with a conventional landing gear arrangement, but retained its predecessor's single-bay, staggered-wing design, 160  hp (120  kW ) Mercedes D.III straight-six engine and its pair of synchronised 7.92 mm (0.312 in) LMG 08/15 Spandau machine guns. The two prototypes known to have been built differed only in the cabanes securing the upper wing to the fuselage; the first aircraft had vertical cabanes while the second had ones that were angled outwards for better pilot visibility. [2]

The two prototypes were tested by Idflieg until 28 April 1917, revealing that they possessed flight characteristics and performance inferior to that of the Albatross D.III, so it did not order the D.I into production and the project was abandoned. Idflieg did not retain performance data for aircraft that it did not accept. [1]

Specifications

Data from The Complete Book of Fighters: An Illustrated Encyclopedia of Every Fighter Built and Flown [3]

General characteristics

PerformanceArmament

See also

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References

  1. 1 2 Herris, p. 262
  2. Herris, pp. 262, 264
  3. Green & Swanborough, p. 235

Bibliography