|Manufacturer||Farman Aviation Works|
|Primary users||French Air Force
Royal Flying Corps; Australian Flying Corps
The Maurice Farman MF.7 Longhorn is a French biplane developed before World War I which was used for reconnaissance by both the French and British air services in the early stages of the war before being relegated to service as a trainer .
Design and development
The "Longhorn" was a three bay biplane with a forward elevator mounted on upcurved extensions of the landing skids and an empennage carried on four booms consisting of biplane horizontal stabilisers with an elevator attached to the trailing edge of the upper surface and twin rudders. It was powered by a Renault air-cooled V8 engine driving a pusher propeller mounted in a fabric-covered nacelle Its name derived from the distinctive front-mounted elevator and elongated skids.
The design originated with an aircraft produced in 1910. This was 12.75 m (41.8 ft) long and had upper and lower wings both spanning 11 metres (36 ft) with the outer pair of interplane struts fabric-covered to form voisin-style side curtains and an undercarriage with a pair of mainwheels mounted on trailing arms below the skids. Lateral control was effected by ailerons mounted on the lower wings only. Pitch control was effected solely by a front-mounted elevator, the tail surfaces consiting of biplane fixed stabilising surfaces and twin rudders. The gap between the wings was 1.5 m (5 ft). 
The 1911 Maurice Farman aircraft flown to win the Michelin Puy de Dôme prize was considerably modified. The side-curtains were eliminated and the wingspan increased, the upper wing to 16 m (52 ft 6 in) and the lower to 14.5 m (47 ft 7 in). Ailerons were mounted on both upper and lower wings, and the forward elevator was supplemented by another attached to the upper tail surface. The undercarriage now had two pairs of wheels attached to the skids using elastic cords.
Early civil flights
On 7 March 1911 Eugène Renaux flew an example to win the Michelin Prize offered for a passenger-carrying flight from Paris to the summit of the Puy de Dôme.  On 2 September 1911, P. Fourny , the Farman chief test pilot, set an endurance record of 11hr 1m 29s: the fuel and oil load carried for the flight was nearly 360 kg (800 lb) Fourny's aircraft was a large wingspan aircraft constructed for the 1911 French military aircaft trials.
- Sixty MF.7s were sold to Norway and served with the Norwegian Army Air Service.
- A Greek plane was converted to a hydroplane: flown by Michael Moutoussis with Aristeidis Moraitinis as observer it carried out the world's first air-naval co-operation mission during the First Balkan War.
- MF.7s were used by the Imperial Japanese forces in the World War I Battle of Tsingtao, with one downed by the German force's sole working aircraft.
- The Australian Flying Corps (AFC), provided with the MF.7 by the British Indian Army, operated it during the Mesopotamian campaign of 1915–16.
- Norwegian Army Air Service operated 60 aircraft until the late 1920s.
- Royal Flying Corps
- Crew: 2
- Length: 11.35 m (37 ft 3 in)
- Wingspan: 15.4 m (50 ft 6 in)
- Height: 3.45 m (11 ft 4 in)
- Gross weight: 855 kg (1,885 lb)
- Powerplant: 1 × Renault 8C V-8 air-cooled piston engine, 52 kW (70 hp)
- Maximum speed: 95 km/h (59 mph; 51 kn)
- Service ceiling: 4,000 m (13,123 ft)
- Related development
- Related lists
- "Le Biplan Maurice Farman 1910". l'Aérophile (in French): 251–3. June 1910.
- "Le Biplan Maurice Farman de Pais-Puy de Dome". l'Aérophile (in French): 126–7. 15 March 1911.
- "Renaux wins the Michelin Puy de Dome Prize". Flight. 11 March 1911.
- "The Maurice Farman Biplane". Flight: 603. 6 July 1912.
- Jackson, Robert, The Encyclopedia of Military Aircraft, Paragon, 2002. ISBN 0-7525-8130-9
- Angelucci, Enzo (1983). The Rand McNally encyclopedia of military aircraft, 1914-1980. The Military Press. p. 21. ISBN 0-517-41021-4.
|Wikimedia Commons has media related to Farman MF.7.|
- "The Maurice Farman Biplane" (PDF). Flight IV (27): 603–606. July 6, 1912. No. 184. Retrieved June 10, 2011. Contemporary technical description of the MF.7 with photographs and drawings.