Design and Development
In early 1918, Fokker produced several rotary-powered monoplane prototypes. Of these, Fokker submitted the V.26 and V.28, small parasol-winged monoplanes with his usual steel-tube fuselages, for the second fighter trials at Adlershof in May/June 1918. The V.28 was tested with both the 108 kW (145 hp) Oberursel UR.III and 119 kW (160 hp) Goebel Goe.III, though neither of these engines were ready for operational service. The V.26 utilized the standard Oberursel UR.II engine, producing only 82 kW (110 hp). While this engine was obsolete, the V.26's low drag and light weight meant that it was nevertheless quite fast. The Fokker designs were only barely beaten by the Siemens-Schuckert D.III with the complex bi-rotary Siemens-Halske Sh.III engine.
In the end, the V.26 was ordered into production as the Fokker E.V. Four hundred were ordered immediately with either the UR.III or Goe.III. Because neither engine was available in any quantity, all production examples mounted the UR.II.
Read more about this topic: Fokker D.VIII
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