Alpha Impulsion partners with Agence de l'Innovation de Defence
Disruptive Innovation or Falling Behind: Europe at a Crossroads
Today, Europe must focus on breakthrough innovations that challenge traditional approaches. The European space sector needs to evolve rapidly and adapt its methods, as Europe lags behind other continents in terms of technological development and operational capabilities.
For example, more than 90% of satellites currently deployed in low Earth orbit are associated with SpaceX and its Starlink constellation. Since 2020, SpaceX has launched 71% of Europe’s small satellites, highlighting Europe’s growing dependence on external providers for access to space.
Alpha Impulsion, a young space company recognised on 27 January 2026 with an award for a major European innovation in launch solutions, is accelerating testing of its autophage propulsion system
Accelerating testing
Autophage technology involves progressively burning the rocket’s structure during flight rather than jettisoning it in separate stages. By using the structure itself as propellant, the technology reduces weight and simplifies system operations.
The RAPID project, supported by the French Defence Innovation Agency (AID), aims to improve the performance of the company’s autophage rocket engine. The engine is expected to reach 1 kN of thrust and a specific impulse of 260 seconds at sea level, while demonstrating its ability to throttle and reignite.
In the short term, the focus is on thrust levels ranging from 0.1 to 10 kN, suited to satellite applications and dual-use missions. In the longer term, the engine will be scaled up for launch vehicle applications.
The engine uses storable propellants that can be kept for several years: hydrogen peroxide (HTP) and high-density polyethylene (HDPE), a common plastic used in water distribution systems. This enables systems to be stored and deployed on demand, while ensuring long-term operational capability once in orbit. It also improves ground crew safety and reduces integration costs, eliminating toxic vapours and the risk of explosions.
Preparatory work officially began on 3 March 2026, with testing scheduled in two phases. The first will take place in Agen in September 2026, using an initial version of the engine known as the “Battleship”. The second is scheduled for March 2027 in Bordeaux, using an integrated version optimised for flight. Final refinements, production and commercialisation will follow.
“In just 15 months, we are moving from an experimental engine to a mature design ready for industrialisation.”
— Marius Celette, CEO of Alpha Impulsion
Without deep transformation, Europe risks permanently losing its technological sovereignty. As part of this drive for greater performance, the AID is supporting a world-first technology capable of meeting the needs of the continent’s satellite sector.
