O.Thetford, P.Gray German Aircraft of the First World War (Putnam)

Goedecker B
   This early 1915 type trainer became no more than a prototype. It was a perfectly orthodox wood and fabric machine, built first as a single-bay aircraft and later rebuilt with two-bay wings. Engine, 120 h.p. Mercedes D II.

J.Herris German Aircraft of Minor Manufacturers in WW1. Vol I (A Centennial Perspective on Great War Airplanes 49)

Goedecker

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   A small single-bay biplane was constructed in 1914 that had a short, fat fuselage. This machine flew well but the single-bay bracing of the mainplanes led to it being the subject of much discussion due to it being unusual at the time. The machine was redesigned with wings of greater span and a longer fuselage which reduced the maximum speed but increased the load. As Goedecker's test pilot, Fritz, had been called to the Front, the machine was flown by another Idflieg staff member who, after one circuit, declared the machine as useless.
   Later Goedecker repaired military aircraft. In the years from 1915 to 1917 inclusive, the firm repaired approximately 20, 50, and 100 machines respectively, produced a few machines of their own design, and finally became a contractor to the Fokker Company. The company constructed six of its own designs during the war. After the war it left aeronautics and in 1920 it employed 11 workers to make and repair auto bodies, motor boats, rowboats, and sails.