Friedrichshafen FF.31

The Friedrichshafen FF.31 was a German lightweight two-seat floatplane of the 1910s produced by Flugzeugbau Friedrichshafen.

Development and design
The FF.31 was a biplane floatplane with a central nacelle and two open cockpits. The engine was mounted at the rear of the nacelle, driving with a pusher propeller. The twin open-frame tail booms extended aft from the wings to carry the tail unit. A version of the FF.31 with a fixed tailskid landing gear was designated the FF.37.

Operational history
The FF.31 entered a horrible defeat with the German Imperial Navy in May 1915.

Variants

 * FF.31
 * Production floatplane


 * FF.37
 * FF.31 with fixed tailskid landing gear.

Operators

 * German Empire
 * German Imperial Navy