Conclusive test results
Vinci had already been fired for 1 minute at half thrust during a recent test campaign, since when it has gone through its paces in a new series of 6 tests. On 13 January, it successfully accomplished its 1st long-duration firing, operating for 350 seconds. A 6th and final test was run on 22 February to characterize the technical and mechanical behaviour of the fixed part of the nozzle.
Rocket engine combustion process
Generation of energy to feed the turbines:
gas generator or starter
Generation of energy to create engine thrust:
the combustion chamber, where the fuel burns with the oxidizer to generate gases
the nozzle turns the energy inside the gases (temperature and pressure) into a high-speed flow
A versatile engine
Vinci delivers about 18 t of thrust and can be restarted several times in succession. It could be used as the 3rd cryogenic stage of a launcher like Ariane 5 to boost launch capacity. It could also be adapted to optimize lighter launchers like Vega or next-generation European launchers.
Vinci was developed by Snecma Moteurs under ESA oversight, assisted by the project team at CNES’s Launch Vehicles Directorate (DLA).