Sud-Ouest Bretagne

The Sud-Ouest S.O.30 Bretagne was a 1940s French airliner built by Sud-Ouest.

S.O.30 Bretagne
SO.30P Bretagne No.40 Aeronavale Palas jets BLA 09.55.jpg
SO.30P of the Aeronavale equipped with under-wing Palas auxiliary jets at Blackbushe Airport in 1955
Role Airliner and military transport
Manufacturer Sud-Ouest
First flight 26 February 1945
Primary users Air France
French Air Force
Number built 45

Design and devopmentEdit

The Bretagne was designed by a group of designers and engineers who were based at Cannes from May 1941 following the invasion of France. The design was for a medium capacity civil transport, a twin-engined mid-wing cantilever all-metal monoplane. The prototype (designated the S.O.30N) first flew on 26 February 1945.

Operational historyEdit

The initial production version was designated the S.O.30P Bretagne with two versions with different engines. The aircraft operated with a crew of five and could carry between 30 and 43 passengers. A cargo version (the S.O.30C) with a revised interior and strengthened floor and large cargo door. The aircraft was operated as an airliner, but mainly by the French military forces as a medium transport.

Some aircraft were fitted with two underwing Turbomeca Palas turbojet engines for auxiliary power. Other aircraft were used for engine-trials fitted with the SNECMA Atar 101 and licence-built Rolls-Royce Nene turbojets.

VariantsEdit

S.O.30N
Tailwheel undercarriage prototype, c/n 01 built after the 1940 armistice and stored till after the war. The second S.O.30R c/n 02 was built in 1946 and later converted to the S.O.30 Nene, jet powered airliner test-bed.
S.O.30R Bellatrix
Two prototypes of the nosewheel undercarriage production model.
S.O.30C
cargo version, one built with belly loading hatches.
S.O.30P-1
production version with Pratt & Whitney R-2800-B43 engines.
S.O.30P-2
production version with Pratt & Whitney R-2800-CA13 engines.
S.O.30 Nene
One aircraft converted from S.O.30R c/n 02 for use as a testbed, powered by two Rolls-Royce Nenes.

OperatorsEdit

Military operatorsEdit

  France

Civil operatorsEdit

  Algeria
  France
  Iran
  Morocco

Specifications (S.O.30P-2)Edit

Data from Jane's All The World's Aircraft 1953–54[4], French postwar transport aircraft[5], [6]

General characteristics

  • Crew: 4
  • Length: 18.95 m (62 ft 2 in)
  • Wingspan: 26.9 m (88 ft 3 in)
  • Height: 5.9 m (19 ft 4 in)
  • Wing area: 86.2 m2 (928 sq ft)
  • Empty weight: 14,000 kg (30,865 lb)
  • Max takeoff weight: 20,250 kg (44,644 lb)
  • Powerplant: 2 × Pratt & Whitney R-2800-CA18 18-cyl. air-cooled radial piston engines, 1,815 kW (2,434 hp) each for take-off with water injection
  • Powerplant: 2 × Turbomeca Palas optional 1.47 kN (330 lbf) turbojet booster engines under the outer wings
  • Propellers: 4-bladed constant-speed fully feathering propellers

Performance

  • Maximum speed: 575 km/h (357 mph, 310 kn)
  • Cruise speed: 438 km/h (272 mph, 237 kn)
  • Range: 2,175 km (1,351 mi, 1,174 nmi)
  • Service ceiling: 8,000 m (26,000 ft)
  • Rate of climb: 6 m/s (1,200 ft/min)

See alsoEdit

Aircraft of comparable role, configuration and era

Related lists

ReferencesEdit

Notes
  1. ^ a b c Stroud 1966, p. 203.
  2. ^ a b c d Stroud 1966, p. 202.
  3. ^ Stroud 1966, pp. 202–203.
  4. ^ Bridgman 1953, pp. 152–153.
  5. ^ Chillon, J.; Dubois, J-P.; Wegg, J. (1980). French postwar transport aircraft. Tonbridge: Air-Britain. pp. 26–27. ISBN 0851300782.
  6. ^ Parmentier, Bruno. "S.N.C.A.S.O. SO-30P 'Bretagne' série 2". Aviafrance (in French). Retrieved 2 December 2017.
Bibliography
  • Bridgeman, Leonard. Jane's All The World's Aircraft 1953–54. London: Jane's All The World's Aircraft Publishing Company, 1953.
  • Stroud, John. European Transport Aircraft since 1910. London: Putnam, 1966.
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). London: Orbis Publishing, 1985.

Further readingEdit

  • Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. pp. 141c–142c.