Breguet 941

The Breguet 941 was a French four-engine turboprop STOL transport aircraft developed by Breguet in the 1960s. Although widely evaluated, it was not built in large numbers, with only one prototype and four production aircraft being built.

Breguet 941
Class Aircraft
Type Transport
Manufacturer Breguet
Origin France
Country Name Origin Year
France 1958
Country Name Operational Year Retirement Year
France 1967 1974 View
ManufacturerName Production From Production To Quantity
Breguet 5 View

In the late 1940s and early 1950s, the French aviation pioneer Louis Charles Breguet developed a concept for a Short Take Off and Landing (STOL) aircraft using four Free-turbine turboshaft engines to drive a common power shaft, which, in turn drove four oversize propellers, which were evenly spaced along the leading edge of the wing with large, full-span, slotted flaps, with the arrangement known as "l'aile soufflée" or blown wing.

An initial, experimental prototype, powered by four Turbomeca Turmo II engines, the Breguet 940 Integral, first flew on 21 May 1958, and was used to prove the concept, demonstrating excellent short field performance. This led to an order being placed in February 1960 for a prototype of an aircraft employing the same concept, but capable of carrying useful loads. This aircraft, the Breguet 941, first flew on 1 June 1961.

Testing of this prototype resulted in an order for four improved production aircraft, the Breguet 941S for the French Air Force, first flying on 19 April 1967. These were fitted with more powerful engines and a modified rear cargo door to allow for air-dropping of stores.

Br 942

Breguet intended to develop the 940 genre further by adding a pressurised fuselage with airline seating as the Breguet Br 942. Wings, undercarriage (landing gear), empennage and engines were essentially similar to the Br 941, but were to be mated to a new 3.1 m (10 ft 2.0 in) diameter circular section fuselage, with airline seating for 40 first/business class or up to 60 economy class passengers. After the limited success of the Br 941 and Br 941S and expected high running costs, further development was abandoned.

Variants

  • Breguet Br 940 Integral
  • Breguet Br 941
  • Breguet Br 941S
  • Breguet Br 942
  • Breguet 945
  • McDonnell 188


The 941 prototype was tested extensively by both France, and the United States, where a license agreement had been consummated with McDonnell Aircraft. The prototype, known as the McDonnell 188 in the USA, was evaluated by both NASA  and the US Military, but no orders were placed. Several photos of the McDonnell-Douglas 188 are on display at the Air Museum in San Diego, in American Airlines and Eastern Airlines liveries. The second Br 941S also carried out a tour of the United States, being evaluated as a STOL passenger airliner for operation from small city airports, although, again, no orders resulted. This aircraft demonstration activity included flights for Eastern Airlines in the northeast U.S.

The four Breguet 941S entered service with the French Air Force in 1967, continuing in service until 1974.

Role STOL Transport
Manufacturer Breguet
First flight 21 May 1958 (Breguet 940)
1 June 1961 (Breguet 941)
Introduction 1967
Retired 1974
Primary user French Air Force
Number built 1 (940) + 1 (941) + 4 (941S)


General characteristics

  • Crew: Two
  • Capacity: 57 civil passengers or 40 fully loaded troops or 24 stretchers
  • Length: 23.75 m (77 ft 11 in)
  • Wingspan: 23.40 m (76 ft 9 in)
  • Height: 9.65 m (31 ft 8 in)
  • Wing area: 83.8 m (902 ft)
  • Empty weight: 13,460 kg (29,610 lb)
  • Max takeoff weight: 26,500 kg (58,422 lb)
  • Powerplant: 4 x Turbomeca Turmo IIID3 turboprop, 1,119 kW (1,500 hp) each

Performance

  • Maximum speed: 450 km/h (243 knots, 280 mph)
  • Cruise speed: 400 km/h (217 knots, 249 mph)
  • Range: 1,000 km (540 nm, 621 mi)
  • Service ceiling 9,500 m (31,200 ft)
  • Take-off run (at 22,000 kg (48,500 lb)): 185 m (607 ft)

End notes