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The Morane-Saulnier T (or Morane-Saulnier MoS.25 A.3) was a French biplane reconnaissance aircraft in 1916 and produced in small numbers during World War I.[1]

Morane-Saulnier T
Role	Reconnaissance Type of aircraft
National origin	France
Manufacturer	Morane-Saulnier
First flight	1916[1]
Introduction	1 August 1917[1]
Retired	Late 1917 or early 1918
Status	retired
Primary user	Aéronautique Militaire
Number built	90[2]
Developed from	Morane-Saulnier S

Design and development

The Morane-Saulnier T was a large, five-bay biplane of conventional configuration, with unstaggered wings of equal span. The tapered rear fuselage and large triangular vertical stabilizer were reminiscent of those used on Morane-Saulnier's smaller designs but would be a constant cause of problems throughout the types operational service despite attempts to fix the problems.[1] The tractor engines were mounted in streamlined nacelles supported by struts suspended between the wings and the propellers on the Type T were sometimes fitted with large spinners.[1] The landing gear consisted of two main units, each of which had two wheels joined by a long axle, plus a tailskid and an auxiliary nosewheel. Three open cockpits in tandem were provided, with one gunner in the nose, and another behind the wing, while the pilot was under the top wing.[1]

Although the similar but larger Type S was designed as a bomber, the French Army ordered the type T in 1916 as a reconnaissance aircraft.[1] Only one example of the preceding Type S bomber had been built, while an order was placed for 90 Morane-Saulnier T aircraft,[2] although older sources suggest that production may have been cancelled before all of these were completed.[3]

Operators

 France

• Aéronautique Militaire (no unit was equipped entirely with the MoS.T)
  • Escadrille C4[1]
  • Escadrille C11[1]
  • Escadrille C17[1]
  • Escadrille C30[1]
  • Escadrille C39[1]
  • Escadrille C47[1]

Variants

Morane-Saulnier T

company designation for 80 hp (60 kW) Le Rhône 9C and 110 hp (82 kW) Le Rhône 9Jb powered versions

MoS-25 A.3

official French government STAe designation for the T

Specifications (Morane-Saulnier T)

Data from Davilla, 1997, p.239

General characteristics

• Crew: 3
• Length: 10.50 m (34 ft 5 in)
• Wingspan: 17.65 m (57 ft 11 in)
• Wing area: 100 m² (1,100 sq ft)
• Gross weight: 3,772 kg (8,316 lb)
• Powerplant: 2 × Le Rhône 9Jb 9-cylinder rotary engine, 82 kW (110 hp) each (production version, prototype had 80 hp (60 kW) Le Rhône 9C)
• Propellers: 2-bladed Wooden fixed pitch propellers

Performance

• Maximum speed: 136 km/h (85 mph, 73 kn)

Armament

• 2-4 × Lewis guns on gun rings for front and rear cockpits.

References

Citations

Bibliography

• Davilla, Dr. James J.; Soltan, Arthur (1997). French Aircraft of the First World War. Mountain View, CA: Flying Machines Press. ISBN 978-1891268090.
• Passieux, JN. "Morane-Saulnier T". jn.passieux.free.fr (in French). Paris. Retrieved 27 September 2018.
• "The Illustrated Encyclopedia of Aircraft". Vol. IX. London: Aerospace Publishing (Orbis). 1981. p. 2540. OCLC 774502891. {{cite magazine}}: Cite magazine requires |magazine= (help)

Further reading

• 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.

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