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Type of aircraft From Wikipedia, the free encyclopedia
The SNCASE SE.161 Languedoc was a French four-engined airliner produced by SNCASE (Sud-Est). Developed from the Bloch MB.160 and known in the late 1930s as the (SNCSO) Bloch MB.161, the SE.161 was in service with Air France and the French military after World War II.
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| SE.161 Languedoc | |
|---|---|
| |
| SE.161 Languedoc of Air France at Paris (Le Bourget) Airport in 1951 | |
| Role | Airliner |
| National origin | France |
| Manufacturer | SNCASE |
| Designer | Marcel Bloch |
| First flight | 15 December 1939 |
| Introduction | 1946 |
| Retired | 1964 |
| Primary users | Air France French Air Force French Navy |
| Produced | 1945–1948 |
| Number built | 100 |
| Developed from | Bloch MB.160 |
In 1936, Air Afrique needed a new airliner for its African services. Marcel Bloch proposed a development of his Bloch MB.160 aircraft, the Bloch MB.161, which after World War II became the SNCASE SE.161 Languedoc. Design work on the new aircraft began in 1937.[1] The prototype, F-ARTV, first flew on 15 December 1939. It was powered by four Gnome-Rhône 14N radial engines of 1,020 hp (760 kW) each.[1] The aircraft underwent a slow development programme and the test flying was not completed until January 1942.[2] The French Vichy government placed an order for twenty in December 1941,[3] but none were built.[2] The programme was finally abandoned following Allied bombing of the factory at Saint-Martin-du-Touch, Haute-Garonne in 1944.[1]
After the liberation of France the provisional government led by General De Gaulle authorised production to be resumed with the first series production aircraft, designated the SE.161 and registered F-BATA, first flying either on 25 August 1945[1] or 17 September 1945.[2] An initial batch of 40 production examples was completed for Air France between October 1945 and April 1948.[4]
The Languedoc was an all-metal four-engined low wing cantilever monoplane airliner with twin fins and rudders. It had a crew of five (pilot, co-pilot/navigator, radio operator, flight engineer and steward) Standard cabin accommodation was for 33 passengers seated in eleven rows of three, two on the starboard side and one to port. An alternative first class arrangement was for 24 seats. A 44-seat higher density version was introduced by Air France in 1951.[5]
The Languedoc was fitted with underwing retractable main undercarriage wheels and a tailwheel landing gear and was powered by four 1,020 hp (760 kW) Gnome-Rhône 14N 44/45 or 54/55 radial engines in wing-leading edge nacelles, with partial convertibility to inline water-cooled pistons.
A total of 100 aircraft were built for Air France, the French Air Force and French Navy. Several examples were utilised as test aircraft with the CEV at Villacoublay and elsewhere. The only export customer for new production aircraft was the Polish airline LOT which bought five with some being refitted with Pratt & Whitney R-1830 Twin Wasp radial engines.
The SE.161 was named the Languedoc before it entered service with Air France on the Paris to Algiers route from 28 May 1946.[1] By October they were withdrawn from service with a number of faults, including landing gear problems, poor view from the cockpit when landing in bad weather and a lack of de-icing equipment and cabin heating. The Gnome Rhône engines also had a very short time between overhauls.[6] They re-entered service in 1947, re-engined with the reliable American-built Pratt & Whitney R-1830 engines;[1] also de-icing equipment, medium-range cockpit radios, and limited cabin heating, the designation changing to SE.161.P7. These enhancements partially reassured commercial airline customers. The Languedoc was soon a familiar type on Air France's increasing European network and continued to operate scheduled services to London Heathrow, Berlin Tempelhof, Paris Le Bourget and Brussels Melsbroek until summer 1952,[citation needed] when they were steadily replaced by the reliable and popular Douglas DC-4.[1]
Despite the costly experience of introducing the Languedoc to service, they were never as reliable as the Douglas DC-4 or the ultra-modern turboprop Vickers Viscount, such that many French passengers refused to fly on the unreliable, unheated and noisy aircraft. Air France ultimately sold some of its Languedocs to Air Liban of Lebanon, Misrair of Egypt and Aviaco of Spain. Others were transferred to the French military.
Ten ex-Air France aircraft were converted for operation in the Search and Rescue (SAR) role with SGACC. They were modified with a large ventral gondola, observation windows and a ventral search radar under a transparent fairing, similar to the design adopted in the French Navy SAR Avro Lancasters.[5]
The largest military operator was the French Navy, which operated 25 different Languedoc aircraft over the years. The first aircraft were delivered in 1949 and used as long-range transports between Paris, Marseille and Lyon, and North Africa; later aircraft would be used as flying classrooms for non-pilot aircrew training. The flying classrooms were modified with both a nose radar set and a ventral "dustbin" radar. The aircraft was withdrawn from Naval service in 1959.
A small number of Languedocs were used as flying testbeds and mother ships, succeeding the pair of He 274 prototype airframes left behind by the Luftwaffe in 1944 that were partly being used as "mother ships" for high-speed French aerodynamic research aircraft, with four Languedocs being used as mother ships for René Leduc's experimental ramjet aircraft in place of the hard-to-maintain He 274s,[7] themselves scrapped by the French in 1953. Languedocs were also used for other types of experimental work including an unsuccessful use as live airborne television relay for Charles de Gaulles's Algerian visit in 1958.
The last Air France Languedoc was withdrawn from domestic service in 1954,[1] being then unable to compete with more modern airliners.
Data from French Postwar Transport Aircraft[29]
General characteristics
Performance
Related development
Aircraft of comparable role, configuration, and era
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