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The Farman H.F.21 was an Farman H.F.20 with increased wingspan. It was only produced in small numbers. [2]

Farman H.F.21
Role Reconnaissance
Manufacturer Farman
Designer Henri Farman
Primary user Roundel of the French Air Force before 1945.svg France
Developed from Farman H.F.20
Wingspan 16.1 m (52 ft 8 in) [1]
Engine 80hp Gnome Lambda rotary
Armament none
Crew 2
Max Speed 95 km/h (59 mph) [1] - 100 km/h (62 mph)[2]

For more information, see Wikipedia:Farman HF.20.


  1. 1.0 1.1 Lamberton, p.218-220.
  2. 2.0 2.1 Davilla, p.212.
  • Dr. James J. Davilla and Arthur M. Soltan. French Aircraft of the First World War. Flying Machines Press, 1997. ISBN 0-9637110-4-0.
  • W.M. Lamberton and E.F. Cheesman, Reconnaissance & Bomber Aircraft of the 1914-1918 War. Great Britain: Harleyford Publications Ltd., 1962.