Friedrichshafen FF.40 explained

The Friedrichshafen FF.40 was a German three-seat floatplane of the 1910s produced by Flugzeugbau Friedrichshafen.

Development and design

The FF.40 was designed to meet a German Imperial Navy requirement for a three-seat patrol seaplane. It was a biplane but had an unusual powerplant design. The Maybach Mb.IV was fitted in the fuselage and drove two tractor propellers mounted just forward of and between the wings on each side. Only one aircraft was built.

Operators

• German Imperial Navy

Bibliography

• Book: Borzutzki . Siegfried . Flugzeugbau Friedrichshafen GmbH: Diplom-Ingenieur Theodor Kober . 1993 . de . Burbach . Berlin . 3-927513-60-1. Friedrichshafen Aircraft Company: Diploma-Engineer Theodore Kober.
• Book: Herris . Jack . Friedrichshafen Aircraft of WWI: A Centennial Perspective on Great War Airplanes . 2016 . Aeronaut Books . n.p. . 978-1-935881-35-3. Great War Aviation Centennial Series. 21.

Further reading

• Book: The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.