SNECMA is a relatively recent French group for the aeronautical -and astronautical- sector. It is divided into sectors such as Propulsion, Communication. Equipment and Defense-Security.

-It is a large conglomerate of companies in the sector.

-For example, in “Propulsion” it brings together Snecma, Snecma Services, Turbomeca, Microturbo, Snecma Propulsion Sólida and Techspace Aero.

-In “Communications” there is the Sagem group, the same as in “Defense-Security”.

-The “Equipment” topic with Aircelle, Labinal, Hispano-Suiza, Teuchos, Messier-Dowty, Messier-Bugatti and Messier Services is very interesting.

“SAFRAN logo”

-Within the Group, each company maintains its own name.

-The case of Snecma brings together other companies that have been incorporated.

-At its base in Villaroche, “Nord” side as it is known, there are the facilities of the old SEPR, since 1952. (See)

-In Villaroche “Sud” there is Snecma itself, the manufacturer of jet engines, turbines for Mirage, Airbus, etc.

-There is the interesting Safran-Snecma Museum.

-At the end of 2010, the LEAP-X1C engine was offered for the C-919 aircraft and the A320-Neo has already been added as well.

-It offers 15% less consumption compared to the CFM56-5B and less noise, around 15 EPNdB (Effective Perceived Noise in Decibels). And it also reduces NOx emissions by 50%.

-It was initially known as LEAP-56. LEAP are the letters for Leading Edge Aviation Propulsion.

“LEAP X1C”

-Meanwhile the CFM-56 range evolves with the -7B for the Boeing 737-700, 800 and 900.

“Snecma/Safran CFM56-7B”

-For the GP 7200 engine of the Airbus 380, initiated by Pratt & Whitney and General Electric, the Engine Alliance was created, and the Snecma/Safran group has acquired 10%.

-The participation in Europrop International for the TP 400-D6 of the A-400M military transport aircraft, from the Safran group, is defined in the combustion chamber, the HP turbine and the installation of the engine in the aircraft.

-Sagem of the Safran group provides the regulation group and something more.

“New photo of the TP 400-D6”

-Turbomeca and Microturbo, from Labinal, are already integrated into the Snecma/Safran Group.

-As for rocket engines, Snecma already had SEP within it since 1997.

-In 2002, SPS or “Snecma Propulsion Solide” was created.

-Among its products are the nozzles for the side rocket motors (boosters) of the Ariane 5.

-And also the engines for the Mistral, MdCN, Durandal, RP30 missiles.

-The engines of the P80 Vega, a 3-stage launcher, stand out: P80Vega, the Zefiro 23 and the Zefiro 9.

-SPS is a subsidiary of Europropulsion.

-It makes other devices such as pyrotechnic ignition cartridges and sensors for different parts of all types of engines.

From Appendix 9: The Vinci engine will replace the Vulcain I and II in the Ariane 5 and 6, in their new versions.

"Vinci"

“Ariane 5 y 6”

 

From Appendix 10: Recently this new French national entity brings together the old Snecma and also Labinal, Microturbo, Turbomeca, SEP, and Herakles.

-The organization is divided into Civil Engines, Military Engines, Helicopters, Space.

-In Civil Engines we have the magnificent and prolific CFM-56 (in collaboration with GE), SaM-146, Silvercrest, Leap-1A, B and C, CF-6, GP-7200, GE-90.

-Military Engines: M-88, TP-400D6, M-53, Tyne, Atar, Larzac.

-There are the Turbomeca engines for Helicopters. Microturbos for missiles and UAVs. The HM-7B, Viking-2 and Vinci rocket engines for the Ariane programs. And the chemical and electrical maneuvering ones.

“Turbomeca Ardiden”

“MTR-390 and RTM-322” (Imag. red.)

“Turbomeca Arriel”

“Makila”

“Arrius”

“CFM-56”

“Silvercrest”

“SaM-146”

“Leap-1A, -1B and -1C”

-The Leap engines are the latest generation designed to replace the renowned CFM-56. They have lower consumption, and are more respectful of the environment.

“TP-400D6”

“Viking-2, Vinci and HM7B”

From Appendix 12: To replace the Vulcain engines, the new “Prometheus” rocket engine is being prepared, derived from the Vulcain 2.1 of 2014. It will be reusable and will use LOX with methane, with more performance than with LOX with hydrogen.

"Prometheus nozzle with 2.5 meters in diameter"

-It seems that a test has been carried out on an Ariane 6 Swan in 2015.

-The nozzle has been built in Trollhättan, in Sweden for the Airbus/Safran Ariane Group under ESA contract.

-It is to be used from the year 2030. Other European companies such as Avio from Italy are involved.

“Vulcain 2, basis for Prometheus”

-On the other hand, SAFRAN, in collaboration with Amaero and Monash University, is already working on the manufacture of parts with 3D metal printers.

“Parts manufactured with 3D metal printer”