J.Herris Friedrichshafen Aircraft of WWI (A Centennial Perspective on Great War Airplanes 21)

Friedrichshafen FF71 & FF71a

   The Friedrichshafen FF71 was Friedrichshafen's second attempt to create a postwar transport aircraft based on the FF49C. At least one prototype was completed, and its first flight was in May 1919. The FF71 was a large, 3-bay biplane derived from the FF49C. Originally, the aircraft had open cockpits but it was later modified by addition of a cabin for the passengers, although the pilot continued to sit in an open cockpit. Unfortunately, specifications have not survived.
   From 1921 it is alleged that LFG built five FF71a aircraft, and the specifications refer to the FF71a.
  
Friedrichshafen FF71a Specifications
Engine: 200 hp Benz Bz.IV
Wing: Span Upper 17.15 m
Span Lower 17.15 m
Area 71.16 m2
General: Length 11.65 m
Height 4.25 m
Maximum Speed: 140 km/h
Cruising Speed: 130 km/h