Friedrichshafen FF.64

The Friedrichshafen FF.64 was a German two-seat biplane floatplane of the 1910s produced by Flugzeugbau Friedrichshafen.
Development and design.
The FF.64 was a two-seat biplane powered by a Mercedes D.III inline piston engine. The aircraft had folding wings as they were intended for operation from Navy ships on patrol/reconnaissance duties. Only three aircraft were built.