The Marinens Flyvebaatfabrikk M.F.1 was a two-seat biplane floatplane the first aircraft produced by the Royal Norwegian Navy Air Service’s aircraft factory Marinens Flyvebaatfabrikk in Horten built after Maurice Farman’s MF.7 design. The construction began in the summer of 1915 with plans borrowed from the Norwegian Army Air Service’s aircraft factory at Kjeller.