Fokker D.IV
The Fokker D.IV was a German fighter biplane of World War I, a development of the D.I.Development
The Fokker D.IV had a more powerful Mercedes D.III engine, and the first Fokker front-line design to use ailerons in place of wing warping from the start for roll control.The aircraft was purchased in small numbers by the German Army and the Swedish Air Force bought four examples of the type.Operators
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