Sud-Ouest Triton

Last updated
SO.6000 Triton
SO.6000 Triton Le Bourget FRA 001.jpg
SO.6000 Triton n°3 on display at the Musée de l'Air et de l'Espace in Le Bourget
RoleExperimental trainer aircraft
National origin France
Manufacturer SNCASO
First flight11 November 1946
Number built5

The Sud-Ouest SO.6000 Triton was an early experimental French jet aircraft. It has the distinction of being the first indigenously-designed jet-powered aircraft to be flown by the nation, having been designed and manufactured during the 1940s by the French aircraft construction consortium SNCASO.

Contents

Work on the French jet aircraft initiative had begun in secret during the Second World War, and harnessed research retrieved from Nazi Germany. Almost immediately after the end of the conflict, the French government issued a requirement for a batch of five prototype jet aircraft to be developed by French industry. To avoid delaying the overall project, it was decided to use the German-designed Junkers Jumo 004-B2 engine after severe development issues were encountered with the indigenously-developed Rateau-Anxionnaz GTS-65 turbojet engine. The British Rolls-Royce Nene turbojet engine was also adopted for some of the prototypes.

On 11 November 1946, the first prototype performed its maiden flight, flown by test pilot Daniel Rastel. This feat was viewed by the government as being an important, and public, advancement in the capabilities of French industry and military capability. A total of five aircraft were produced for the test programme, including one for static testing only. Despite multiple aircraft been built and successfully flown, further development of the SO.6000 was abandoned following the rapid emergence of more advanced jet-powered fighter aircraft.

Design and development

Origins

According to aviation author Peter Caygill, France's aviation industry was in dire straits, perhaps having been more damaged than that of any other nation, as a consequence of events in the Second World War. [1] Regardless, French industrialists and government officials alike were keen to make rapid advances in aviation technology to not only revive the nation's aviation capabilities, but to utilise the newest advances and produce a new generation of competitive indigenously-built aircraft. France, like the other Allied nations in the war, had benefitted from captured Germany high speed research; these factors combined gave a great impetus to undertaking advanced research projects. [1]

Amongst the first new aviation projects to be launched in post-war France was the SO.6000. [1] According to aviation author John W.R. Taylor, the origins of the SO.6000 can be found during 1943; allegedly, the aircraft is based upon a clandestine research effort conducted during the German occupation of France, headed by the French aeronautics engineer Lucien Servanty. Shortly after the end of the conflict, the new French government issued a requirement, calling for a total of five prototype aircraft to be constructed for testing purposes. [2] The development of indigenously designed jet aircraft was seen as of national importance to the government, being intended to symbolise and embody the speedy recovery of France's industrial and military strength. [3]

Design

The SO.6000 Triton on static display at Le Bourget Airport, Paris Triton Musee du BOurget P1020096.JPG
The SO.6000 Triton on static display at Le Bourget Airport, Paris

The SO.6000 was, despite the use of jet propulsion, an otherwise conventional aircraft. [1] It was a compact and unarmed two-seater, having a deep-set fuselage and furnished with a mid-mounted straight wing. The spacious fuselage provided sufficient space for multiple engine models to be readily accommodated. [1] Caygill observed that while SNCASO had to start from scratch on the fuselage's design, by pursuing a clean-sheet approach and the originality which that entailed, the SO.6000 lacked much of the conservatism present in the contemporary designs of several British aircraft manufacturers. [1]

While having been envisioned from the onset to be powered by a jet engine, the availability of such a powerplant to install upon the aircraft was no straightforward issue. At one stage, it had been planned for the type to receive a French-designed Rateau-Anxionnaz GTS-65 turbojet engine.[ citation needed ] However, as a result of the delays encountered in the development of this engine, it was decided to instead adopt the German-designed Junkers Jumo 004-B2 engine for use upon the first prototype. [1] The choice of a German engine was opted for as a means of preventing any unnecessary delay in the project. [3]

Operational history

On 11 November 1946, the first prototype performed its maiden flight, conducted by test pilot Daniel Rastel amid unfavourable weather conditions. [3] The timing of the flight was deliberate, being only four days before the opening of an international aviation exhibition held at the Grand Palais; the French government were keen to demonstrate that they possessed technological parity with Germany, Great Britain, and the United States. [3] According to Caygill, the Junkers engine was only capable of producing up to 1,980 lb of thrust and was quite underpowered for the SO.6000, being barely capable of achieving sustained flight and therefore lacked practicality. Accordingly, further prototypes were not powered by the Junkers engine. [1]

The second prototype was used for static testing only, while the three other aircraft were powered by a license-built model of the British Rolls-Royce Nene turbojet engine, the last of these performing its first flight in November 1950. [1] [4] None of the aircraft would be powered by the intended GTS-65 engine, the development of which would eventually be terminated without any production examples being completed. When flown with the Nene engine, the SO.6000 was capable of achieving speeds of up to 593 mph, but was also beset by several vibration and stability issues when flown near these speeds. [1]

The SO.6000's lead designer, Lucien Servanty, also worked on another aircraft during the late 1940s, the Sud-Ouest Espadon, which became France's first post-war jet fighter; he also participated in the design of numerous aircraft following this, including the Anglo-French supersonic airliner Concorde. [1] [3] Further development of the SO.6000 was ultimately abandoned during the early 1950s without any direct follow-on; as such, the SO.6000 was never use in any operational circumstance. The type had been rendered obsolete by the rapid pace of advancements, both in terms of jet propulsion specifically and wider aerospace capabilities generally, with numerous jet-powered designs being produced around this timeframe. [1]

Variants

Surviving aircraft

A rear view of the preserved SO.6000 Triton at Le Bourget Airport, Paris, in 1975 Sud SO 6000 Triton 03 LEB 07.06.75 edited-3.jpg
A rear view of the preserved SO.6000 Triton at Le Bourget Airport, Paris, in 1975

SO.6000N Triton No. 03 F-WFKY is exhibited in the Musee de l'Air et de l'Espace at Le Bourget Airport, to the north of Paris. This aircraft incorporates parts from No. 05 F-WFKX. [5] [6]

Specifications (SO.6000-04)

Data from Jane's Pocket Book of Research and Experimental Aircraft [2]

General characteristics

Performance

Related Research Articles

Messerschmitt Me 262 Worlds first operational jet-powered fighter aircraft

The Messerschmitt Me 262, nicknamed Schwalbe in fighter versions, or Sturmvogel in fighter-bomber versions, was the world's first operational jet-powered fighter aircraft. Design work started before World War II began, but problems with engines, metallurgy and top-level interference kept the aircraft from operational status with the Luftwaffe until mid-1944. The Me 262 was faster and more heavily armed than any Allied fighter, including the British jet-powered Gloster Meteor. One of the most advanced aviation designs in operational use during World War II, the Me 262's roles included light bomber, reconnaissance and experimental night fighter versions.

Horten Ho 229 German prototype fighter/bomber

The Horten H.IX, RLM designation Ho 229 was a German prototype fighter/bomber initially designed by Reimar and Walter Horten to be built by Gothaer Waggonfabrik late in World War II. It was the first flying wing to be powered by jet engines.

Arado Ar 234 1943 bomber aircraft by Arado

The Arado Ar 234 Blitz was the world's first operational jet-powered bomber, built by the German Arado company in the closing stages of World War II.

Junkers German aerospace and engineering company

Junkers Flugzeug- und Motorenwerke AG more commonly Junkers[ˈjʊŋkɐs], was a major German aircraft and aircraft engine manufacturer. It produced some of the world's most innovative and best-known airplanes over the course of its fifty-plus year history in Dessau, Germany. It was founded there in 1895 by Hugo Junkers, initially manufacturing boilers and radiators. During World War I, and following the war, the company became famous for its pioneering all-metal aircraft. During World War II the company produced some of the most successful Luftwaffe planes, as well as piston and jet aircraft engines, albeit in the absence of its founder, who had been removed by the Nazis in 1934.

Junkers Jumo 004 Very early turbojet aircraft engine

The Junkers Jumo 004 was the world's first production turbojet engine in operational use, and the first successful axial compressor turbojet engine. Some 8,000 units were manufactured by Junkers in Germany late in World War II, powering the Messerschmitt Me 262 fighter and the Arado Ar 234 reconnaissance/bomber, along with prototypes, including the Horten Ho 229. Variants and copies of the engine were produced in Eastern Europe and the USSR for several years following the end of WWII.

BMW 003

The BMW 003 is an early axial turbojet engine produced by BMW AG in Germany during World War II. The 003 and the Junkers Jumo 004 were the only German turbojet engines to reach production during World War II.

Junkers Ju 287 Prototype German bomber

The Junkers Ju 287 was an aerodynamic testbed built in Nazi Germany to develop the technology required for a multi-engine jet bomber. It was powered by four Junkers Jumo 004 engines, featured an unusual and novel forward-swept wing, and apart from the wing was assembled largely from components scavenged from other aircraft. It was one of the very few jet propelled aircraft ever built with fixed landing gear.

Messerschmitt Me 328 German parasite fighter prototypes

The Messerschmitt Me 328 was originally designed as a parasite aircraft to protect Luftwaffe bomber formations during World War II. During its protracted development, a wide variety of other roles were suggested for it. Late in the war, the design was resurrected for consideration as a Selbstopfer aircraft, but was judged unsuitable even for this purpose. The tiny fighter was to have been propelled by pulsejets, but the unsuitability of these engines doomed the Me 328 from the start.

Supermarine Attacker Carrier-based fighter aircraft; first jet fighter in Royal Navy service

The Supermarine Attacker is a British single-seat naval jet fighter designed and produced by aircraft manufacturer Supermarine for the Royal Navy's Fleet Air Arm (FAA). The type has the distinction of being the first jet fighter to enter operational service with the FAA.

Lavochkin La-15

The Lavochkin La-15, was an early Soviet jet fighter and a contemporary of the Mikoyan-Gurevich MiG-15.

SNCASO

SNCASO was a French aircraft manufacturer.

This article outlines the important developments in the history of the development of the air-breathing (duct) jet engine. Although the most common type, the gas turbine powered jet engine, was certainly a 20th-century invention, many of the needed advances in theory and technology leading to this invention were made well before this time.

Gloster E.1/44

The Gloster E.1/44 was a British single-engined jet fighter design of the Second World War, developed and produced by the British aviation firm Gloster Aircraft Company. It was amongst the first jet-propelled aircraft to be developed and was produced on an experimental basis.

Arsenal VG 70 French prototype jet

The Arsenal VG 70 was a single-seat monoplane research aircraft flown in France shortly after World War II to assist in the development of high-speed jet fighters. Lacking an indigenous turbojet engine, the aircraft was fitted with a German Junkers Jumo 004. Unlike most jet-powered aircraft of the period, the swept wing was wooden as was the tail structure. The under-powered VG 70 made its maiden flight in 1948, but only flew five times before the program was terminated the following year.

Arsenal VG 90 French prototype jet airplane

The Arsenal VG 90 was a French carrier-based jet-engined interceptor developed in the late 1940s. It was intended to compete for an Aéronavale contract and first flew in 1949. It set a speed record for a French aircraft the following year, but both of the completed prototypes were destroyed in fatal crashes and the program was cancelled in 1952 before the third prototype was finished. The Aéronavale contract was eventually awarded to a license-built British aircraft. The remains of the last VG 90 were scrapped in 1978.

Nord 2200 French prototype carrier-based interceptor

The Nord 2200 was a French carrier-based, jet-engined interceptor developed in the late 1940s. It was intended to compete for an Aéronavale contract, but was not selected for production after a 1950 accident badly damaged the sole prototype. It was repaired and resumed flight testing the following year, which including evaluating rocket-assisted take offs. After the aircraft made its last flight in 1954, it was used as a gunnery target. Much of the airframe was recovered in the 1980s, but its current disposition is uncertain.

SNCASO Trident French mixed-power interceptor aircraft

The SNCASO SO.9000 Trident was a French mixed-power interceptor aircraft built by aircraft manufacturer SNCASO during the 1950s. As part of a wider effort to re-build French military power during the late 1940s and to furnish France with advanced, new domestically produced designs, a request for a supersonic-capable point-defence interceptor aircraft to equip the French Air Force was issued to SNCASO. In response, the firm designed the mixed-propulsion Trident, powered by a single SEPR rocket engine, which was augmented by wingtip-mounted turbojet engines, and the Air Force ordered two prototypes.

The SNCASO SO.4000 was an experimental French twin-engine jet-bomber aircraft of the 1950s. It was the first French jet bomber developed, but it never entered operational service.

SNCASO SO.8000 Narval French carrier-based strike fighter designed by Sud-Ouest in the late 1940s

The SNCASO SO.8000 Narval was a French carrier-based strike fighter designed by Sud-Ouest in the late 1940s. The French Navy ordered two prototypes in 1946 and they made their maiden flights three years later. They were plagued by aerodynamic problems and unreliability issues with their piston engines. The aircraft proved to be slow, lacking in lateral and longitudinal stability and unsuitable for carrier operations; it did not enter production.

Sud-Ouest Espadon French post-war prototype interceptor

The Sud-Ouest SO.6020 Espadon (Swordfish) was a French post-war prototype interceptor designed and built by SNCASO during the late 1940s. The French Air Force judged the design a failure despite some records being set and cancelled plans to put it into service in 1951. Only four aircraft were built and they were later modified to serve as testbeds for the mixed rocket and turbojet-powered SNCASO SO.9000 Trident program. Only one badly damaged aircraft survives.

References

Citations

  1. 1 2 3 4 5 6 7 8 9 10 11 12 Caygill 2006, [ page needed ].
  2. 1 2 Taylor (1976). p. 231.Missing or empty |title= (help)
  3. 1 2 3 4 5 "Vol historique du premier avion à réaction français, le "SO 6000 Triton." gouvernement.fr, Retrieved: 18 May 2019.
  4. "Have You Seen?" Flying Magazine, November 1949. Vol. 45, No. 5. p. 45. ISSN   0015-4806.
  5. Ogden 2006, p. 186.
  6. "S.N.C.A.S.O. SO 6000 TRITON." Musee de l'Air et de l'Espace, Retrieved: 18 May 2019.

Bibliography