|Designer||Henri & Maurice Farman|
|Introduction||June 1915 |
|Primary users|| France|
|Wingspan||17.6 m (57 ft 10 in) |
|Engine||135hp Renault 8C or other|
|Armament||front flexible Lewis |
|Max Speed||135 km/h (84 mph)|
|Climb||2,000 m (6,560 ft) in 15:00|
3,000 m (9,800 ft) in 24:00
|Ceiling||4,050 m (13,300 ft) to 4,900 m (16,000 ft)|
|Range||420 km (260 mi)|
In 1915 the Farman brothers were asked to cooperate on a plane design to replace the MF.11, and the Farman F.40 was the result. It mixed design elements from the M.F. and H.F. lines. Large numbers of F.40s were built between mid-1915 and mid-1916, but by autumn 1916 it was obvious they were obsolete. Though the intention was to replace MF.11s, there was never enough aircraft to go around and the two frequently served side-by-side. The F.40 became a very important plane for the French air force, because it filled the gap between the early Farmans and the much-improved planes that arrived in late 1917 and early 1918 such as the Breguet 14 and Salmson 2.
Several variants were built with different engines, armoring, and floats, including the F.40bis with the 160hp Renault 8Gc.
The were used in small numbers by many Entente combatants: Belgium (10), Italy (license-built by Savoia), Norway (12), Portugal (5), Romania (20), Russia (where they were disliked) (20), Serbia (about a dozen), the RNAS (50). 
For more information, see Wikipedia:Farman F.40.
Timeline [note 1]
|Availability||Maneuver||Damage||Dmg Points||Max Alt.||Climb|
Miniatures and Models
- Shapeways: Reduced Aircraft Factory
- Shapeways: Kampfflieger
- Numbers are approximate.
- Updated card
- Davilla, p.233.
- Lamberton, p.218-220.
- Angelucci, p.66.
- Lamberton, p.88.
- Davilla, p.240.
- Munson, p.23.
- Enzo Angelucci, ed. The Rand McNally Encyclopedia of Military Aircraft, 1914-1980. New York: The Military Press, 1983 edition. ISBN 0-517-41021-4.
- 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. ISBN 9780900435027
- Kenneth Munson, Bombers: Patrol and Reconnaissance Aircraft, 1914-1919. New York: The MacMillan Company, 1968, Blandford Press Ltd. ISBN 978-0753721711