Launch vehicle

With a very quick build and launch, HPS will be able to carry up to 250 kg to a LEO 0° and 190 kg to a SSO.
The rocket will be ready to launch between 15 and 60 days.
The flight will be sold at 4M USD, which will be one of the most competitive launch prices of the industry.

Dimensions1.3 x 12 m
Weight15 Tons
Thrust20 Tons
Payload SSO 500 km190 kg
Payload LEO 500 km250 kg
Price$ 4 million (~ $ 20k / kg SSO 500km)
Lead time15 to 60 days (under conditions)
Thrust modulationYes


  • Launch of microsatellites (>150 kg)
  • Launch of microsatellite rideshare (<150 kg)
  • Keeping satellite constellations in operational condition by replacing faulty satellites
  • Participation in Earth orbit clean-up programs
  • Integration with defense systems to guarantee the safety of the French space ecosystem

HPS will offer the best solution to set a quick mission in LEO. It will carry satellites to any specific LEO in a matter of days. Individual mission, constellation completion, cubesatellites rideshare, everything is possible.


Today, the space industry uses two propulsion technologies: solid propulsion and liquid propulsion. However, both are only a compromise of ideal criteria. A third propulsive launcher technology exists: hybrid propulsion. This technology consists of injecting one of the propellants in liquid form into a combustion chamber which contains a second propellant in the solid state.

The thrust is modulated by controlling the amount of liquid propellant injected into the combustion chamber. This technology enables the payload orbit to be accurately set. Despite numerous advantages, this technology is only rarely used because of a technological obstacle: its performance decreases with the increased size of the thruster.

That's why HPS chose to develop a technological key to unlock its full potential. With this innovation, hybrid propulsion becomes the most advantageous propulsion system among existing technologies.



Alexandre Mangeot


Following his thesis in space propulsion with CNES and Roxel, he brings his knowledge of hybrid space propulsion and his propulsion system design skills. He is at the origin of the technological innovation developed by HPS. He also led Mars 160 expedition organized by the Mars Society.


Sylvain Bataillard


He worked for the Military Applications Department of CEA, as well as for ArianeGroup on military programs. Originally from aeronautics and its regulatory aspects (EASA / FAA). He brings his skills in tests engineering, safety and regulations.


Vincent Rocher


Having worked on military programs within Thales as well as ArianeGroup, he brings his skills in electromechanical design and manufacturing processes. Actively passionate about technology, he is always looking for new challenges.


Alexis Azoulai


Previously in charge of development in an NGO, he co-organized an international conference at UNESCO with the presence of European ministers and elected representatives. He brings his skills in business strategy and communication.