It is the “Snecma Propulsion Solide” company, a division of Safran since 2005, and was the result of its creation within Snecma, in 2002.

-Its roots are in SEP, SEPR and LRBA of Vernon.

-It makes the solid-fuel missile engines like those for the Mistral surface-to-air.

“The Mistral with SPS engine”

-Another example of an engine is that of the ERINT, or Extended Range Interceptor.

“ERINT engine”

“Ariane 5 launch”

-The Ariane 5 booster engines, attached to the main body, have nozzles built by SPS.

-The engines are known as MPS or Moteurs a Propergol Solide. Below we show an exterior detail of the nozzle.

“Ariane 5 MPS nozzle”

-For new projects such as the Vega P80, SPS is also involved in the nozzle. See below.

“Ariane 5 MPS nozzle”

“The future Vega successor to the Ariane”

-Since 1985, the French deterrent forces have had the M4 vector, then the M45 in 1997. Passing through the M20.

-The M-45 is a three-stage system. From 2010, the M 51 should have entered service, to replace the previous one.

“The M-45 in artistic representation”

“Last stage of the M-51”

-Precisely, the stage of the M-51 shown is the TNO or Tète Nucléaire Oceanique.

-SPS also manufactures pyrotechnic cartridges for starting engines like the one shown. In general, it makes all types of French engines.

“Pyrotechnic cartridge”