The Friedrichshafen FF.60 was a German experimental floatplane produced by Flugzeugbau Friedrichshafen. Development and design The FF.60 was an experimental large triplane floatplane, powered by four Mercedes D.III engines. Its first flight took place in November 1918, only shortly before the Armistice that ended all further development. Only one was built. Specifications (FF.60) See also References Bibliography Further reading 1910s German experimental aircraft Triplanes Floatplanes FF.60 Four-engined tractor aircraft Four-engined piston aircraft Aircraft first flown in 1918