The Fokker D.II was a German fighter biplane of World War I. It was a single-seat fighter aircraft developed before the Fokker D.I. It was based on the M.17 prototype, with single-bay unstaggered wings and a larger fuselage and shorter span than production D.IIs. Using a 75 kW (100 hp) Oberursel U.I, the D.II was underpowered, though the single 7.92 mm (.312 in) lMG 08 machine gun was normal for 1916. The German Army purchased 177.