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SNCAC Martinet

From Wikipedia, the free encyclopedia
Martinet
A CAEA NC.702Martinet
General information
TypeMilitary trainer and light transport monoplane
National originFrance
ManufacturerSNCAC
Primary usersFrench Air Force
Number built350
History
Introduction date1945
First flight1944
Retired1963
Developed fromSiebel Si 204
SNCAC NC.701French Air Force North Africa. Compare the glazed nose to the NC.702 picture above

TheSNCAC Martinet was a German-designed but French-built twin-engined military trainer and light transport monoplane. It was operated by the French military and in small numbers by French airlines from the late 1940s.

Development

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To aid the German war effort, the SNCAC factory at Bourges was ordered to produce 455Siebel Si 204s light transports for the Luftwaffe. Production started in 1942 and 168 had been delivered before the Liberation stopped production. The French decided to continue producing the aircraft and designated the aircraftNC.700. Only a prototype NC.700 was built powered byRenault 12S-00 engines (derived from the German AS-411) although the designation was also used for a small number of aircraft originally intended for the Luftwaffe and diverted to the French Air Force.

The company then produced two variants; theNC.701 Martinet based on the Si 204D with a glazed unstepped nose and powered by twoRenault 12S engines, and theNC.702 Martinet with a conventional stepped windscreen nose based on the Si 204A.

Operational history

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The Martinet was used by both the French Air Force and Navy and the final example did not retire until 1963. A small number were used by commercial operators includingAir France but were soon replaced by larger aircraft like theDouglas DC-3. A number were used by the French Postal Service but they were grounded following an accident to F-BBFA is July 1946. The aircraft was used by theIGN for photo-survey work and a few aircraft were also exported to Poland and Sweden for use on photo-mapping duties.

Variants

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NC.700
ARenault 12S powered Si-204, one prototype.
NC.701
Trainer version with dual controls and transparent nose based on the Si-204D. Room for five students as a radio trainer.
NC.702
Eight-seat transport version based on the Si-204A.

Operators

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 France
 Morocco
 Poland
 Sweden

Survivors

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  • NC.702282 with the Conservatoire de l'Air et de l'Espace d'Aquitaine, France
  • NC.702331 with the Deutsches Technikmuseum, Berlin, Germany
  • NC.701SE-KAL on display at the Air and Space Museum, Arlanda, Stockholm, Sweden.

Specifications (NC.701)

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NC 702 3-view drawing from L'Aerophile magazine October 1946

Data from Jane's all the World's Aircraft 1947[2]

General characteristics

  • Crew: 2
  • Capacity: 8 pax (NC.702: 5 student navigators)
  • Length: 12.81 m (42 ft 0 in)
  • Wingspan: 21.828 m (71 ft 7 in)
  • Height: 4.4 m (14 ft 5 in)
  • Wing area: 46 m2 (500 sq ft)
  • Empty weight: 3,965 kg (8,741 lb)
  • Gross weight: 5,600 kg (12,346 lb)
  • Fuel capacity: ::Main tanks:800 L (210 US gal; 180 imp gal) fuel in four wing tanks
Long-range tanks: 480 L (130 US gal; 110 imp gal) in two optional long-range tanks
Oil: 120 L (32 US gal; 26 imp gal) oil in engine nacelle tanks
  • Powerplant: 2 ×Renault 12S-00 V-12 inverted air-cooled piston engines, 440 kW (590 hp) each
  • Propellers: 3-bladed Ratier, 2.65 m (8 ft 8 in) diameter controllable-pitch airscrews

Performance

  • Maximum speed: 350 km/h (220 mph, 190 kn) at 3,000 m (9,800 ft)
  • Cruise speed: 325 km/h (202 mph, 175 kn) at 3,000 m (9,800 ft)
  • Landing speed: 115 km/h (71 mph; 62 kn)
  • Range: 810 km (500 mi, 440 nmi) with maximum fuel
  • Ferry range: 2,000 km (1,200 mi, 1,100 nmi) with long-range tanks
  • Service ceiling: 7,500 m (24,600 ft)
  • Wing loading: 122 kg/m2 (25 lb/sq ft)
  • Power/mass: 8.58 kg/kW (14.3 lb/hp)

See also

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Related development

References

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  1. ^abJońca, Adam (1985).Samoloty linii lotniczych 1945-1956, Barwa w lotnictwie polskim no.4, WKiŁ, Warsaw,ISBN 83-206-0529-6(in Polish), p.12
  2. ^Bridgman, Leonard, ed. (1947).Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. pp. 113c –114c.

Bibliography

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  • Chillon, Jacques; Dubois, Jean-Pierre & Wegg, John (1980).French Post-War Transport Aircraft. Tonbridge, UK: Air-Britain.ISBN 0-85130-078-2.
  • Forsgren, Jan (2017). "The Flying Darkroom: The Siebel Si 204 & Nord NC.701 in Sweden".The Aviation Historian (20):100–117.ISSN 2051-1930.
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
  • Taylor, Michael J. H. (1989).Jane's Encyclopedia of Aviation. London: Studio Editions.

External links

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