The Fokker M.7 was a German observation aircraft of World War I, used by the armed forces of both Germany and Austro-Hungary.
Twenty aircraft, powered by 60kW Oberursel U.0 rotary engines, were built, some of which were used by Kaiserliche Marine (Imperial German Navy) shore stations.[1] It was a single-bay sesquiplane (biplane) of conventional configuration, with slightly staggered wings using wing warping for roll control, tandem open cockpits and Fokker's distinctive comma-shaped rudder.
The W.4 was a floatplane version of the M.7.
The aircraft was operated by the Austro-Hungarian forces under the designation Type B.I, following the German Empire's lettered prefixes from the Idflieg aircraft designation system. Serials assigned were 03.01,03.02 and 03.04-03.12 with 03.25-03.28 being assigned to subsequently repaired/rebuilt aircraft.