Developing the autophage launch vehicle Grenat, that uses Opal engines. It uses fuel as structure. As the rocket ascends, the engine gradually burns the rocket’s body, starting from the bottom and moving upwards, getting shorter during the flight like an upside-down candle. The vehicle consumes itself, until only the engine and the payload remain.
More info here
https://alpha-impulsion.com/In the News
Far Above the World