Morane-Saulnier AI

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Ferte-Alais Air Show 2004 19.jpg
Role fighter/trainer
National origin France
Manufacturer Morane-Saulnier
First flight August 1917
Primary user French Air Force
Number built 1210[1]

The Morane-Saulnier AI (also Type AI) was a French parasol-wing fighter aircraft produced by Morane-Saulnier during World War I.

Development and design[edit]

The AI was developed as a refinement of the Morane-Saulnier Type N concept, and was intended to replace the Nieuport 17 and SPAD VII in French service, in competition with the SPAD XIII, which it was built as a back-up for. Its Gnome Monosoupape 9N 160 CV rotary engine was mounted in a circular open-front cowling. The strut braced parasol wing was swept back. The spars and ribs of the circular section fuselage were wood, wire-braced and covered in fabric, and faired out with wood stringers.[2] The production aircraft were given service designations based on whether they had 1 gun (designated MoS 27) or 2 guns (designated MoS 29).[1][3]

Operational history[edit]

A number of escadrilles were created to operate the AI, but by mid-May 1918, most of the aircraft were replaced by the SPAD XIII.[2] The aircraft became an advanced trainer, designated MoS 30.[3] Many were used post-war after having been surplussed off, as aerobatic aircraft, including one which was flown by Charles Nungesser.

Fifty-one MoS 30s were purchased by the American Expeditionary Force as pursuit trainers.[3]


MoS 27
Production fighter variant with one 0.303in (7.7mm) Vickers machine gun and powered by a Gnome Monosoupape 9NI rotary engine.
MoS 29
Production fighter variant with two 0.303in (7.7mm) Vickers machine guns and powered by a Gnome Monosoupape 9NI rotary engine.
MoS 30
Production advanced trainer with either a 89kW (120hp) le Rhone 9Jb or a 101kW (135hp) le Rhone 9Jby rotary engine.
MoS 30bis
Variant of the MoS 30 with a de-rated le Rhone 9Jby engine 67kW (90hp).


Belgian Morane-Saulnier AI

In addition to military operators, the Morane-Saulnier AI was popular with French aerobatic pilots and a number carried civil registrations.

French Morane-Saulnier AI
  • Evaluated a single MoS.30 in 1922.
Swiss Morane-Saulnier AI
 Soviet Union
 United States


Morane-Saulnier AI at Fantasy Of Flight

Three AIs are flown from La Ferté-Alais.[1]

The Fantasy of Flight collection in Polk City, Florida and an AI that was sold to the United States Army Air Service in 1918 for testing at McCook Field in Ohio until being sold off for private use. This AI joined the Tallmantz Collection which was acquired by Fantasy of Flight in 1985. It was restored in England by Personal Plane Services in the late 1980s.[4]

Another AI is in the Old Rhinebeck Aerodrome collection, and was formerly flown in the weekend airshows there for some time.[5]

Specifications (MoS 27.C1, 150 hp Monosoupape)[edit]

Morane-Saulnier AI drawing

Data from War Planes of the First World War: Volume Five Fighters[6]

General characteristics

  • Crew: 1
  • Length: 5.65 m (18 ft 6⅜ in)
  • Wingspan: 8.51 m (27 ft 11 in)
  • Height: 2.40 m (7 ft 10¼ in)
  • Wing area: 13.39 m2 (144.1 ft2)
  • Empty weight: 421 kg (926 lb)
  • Gross weight: 649 kg (1,428 lb)
  • Powerplant: 1 × Gnome Monosoupape 9N, 112 kW (150 hp) each


  • Maximum speed: 225 km/h (140 mph)
  • Endurance: 1 hours  45 min
  • Service ceiling: 7,000[7] m (22,965 ft)
  • Rate of climb: 8.3 m/s (500[8] ft/min)




  1. ^ a b c Donald 1997, p. 659.
  2. ^ a b Holmes, 2005. p 36.
  3. ^ a b c Lamberton 1960, p. 84.
  4. ^ "Morane A1." Fantasy of Flight. Retrieved: 25 March 2012.
  5. ^ [1]
  6. ^ Bruce 1973, pp. 122–123.
  7. ^ Angelucci 1983, p. 45.
  8. ^ Climb to 1,000 m (3,300 ft) in 2 minutes.


  • Angelucci, Enzo. The Rand McNally Encyclopedia of Military Aircraft, 1914-1980. San Diego, California: The Military Press, 1983. ISBN 0-517-41021-4.
  • Bruce, J.M. War Planes of the First World War: Volume Five Fighters. London: Macdonald, 1972. 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. 
  • Donald, David, ed. The Encyclopedia of World Aircraft. Ottawa, Canada: Prospero Books, 1997. p. 659. ISBN 1-85605-375-X.
  • Holmes, Tony. Jane's Vintage Aircraft Recognition Guide. London: Harper Collins, 2005. p. 36. ISBN 0-00-719292-4.
  • Lamberton, W.M. Fighter Aircraft of the 1914-1918 War. Herts, UK: Harleyford Publications Ltd., 1960, pp. 84–85.

External links[edit]