TheMorane-Saulnier AF, also known as theMorane-Saulnier Type AF and theMoS 28 was a FrenchFirst World War single-seatbiplanefighter prototype from 1917.

Although the fuselage was similar to that of the contemporaryMorane-Saulnier Type AI parasol monoplane and precedingMorane-Saulnier AC shoulder wing monoplane, this aircraft was designed as a biplane. It wasMorane-Saulnier's first single-seat fighter biplane as the company normally specialized in monoplanes.The AF was first flown on 23 June 1917 and tested by theAviation Militaire in late 1917 however it was passed over for production in favour of theSPAD XIII, Morane-Saulnier Type AI andNieuport 28. In November 1917 a floatplane version of the AF was flight tested with a single central pontoon-like float, but was not adopted.

• Morane-Saulnier AC - shoulder wing fighter
• Morane-Saulnier AI - parasol wing fighter
• Morane-Saulnier AF - biplane fighter
• Morane-Saulnier AFH - floatplane version of biplane fighter

Data from War Planes of the First World War: Volume Five Fighters^[1]

General characteristics

• Crew: 1
• Length: 5.15 m (16 ft 11 in)
• Wingspan: 7.47 m (24 ft 6 in)
• Height: 2.35 m (7 ft 8.5 in)
• Wing area: 15.31 m² (164.8 sq ft)
• Empty weight: 421 kg (928 lb)
• Gross weight: 649 kg (1,431 lb)
• Powerplant: 1 ×Gnome Monosoupape 9Nbrotary engine , 112 kW (150 hp)

Performance

• Maximum speed: 207 km/h (129 mph, 112 kn)
• Rate of climb: 8.3 m/s (1,640 ft/min)^[2]

Armament

• 1 x 7.7 mm (0.303 in)Vickers gun

• Bruce, J.M. (1972).War Planes of the First World War: Volume Five Fighters. London: Macdonald.ISBN 0-356-03779-7.
• Davilla, Dr. James J.; Soltan, Arthur (1997).French Aircraft of the First World War. Mountain View, CA: Flying Machines Press.ISBN 978-1891268090.
• Green, William; Gordon Swanborough.The Complete Book of Fighters. Godalming, UK: Salamander Books. p. 415.

• Lacaze, Henri & Lherbert, Claude (2013).Morane Saulnier: ses avions, ses projets [Morane Saulnier: Their Aircraft and Projects] (in French). Outreau, France: Lela Presse.ISBN 978-2-914017-70-1.

• 1910s French fighter aircraft
• Morane-Saulnier aircraft
• Rotary-engined aircraft
• Aircraft first flown in 1917

• Articles with short description
• Short description matches Wikidata
• CS1 French-language sources (fr)