ESA Gives Go Ahead for Low-cost Prometheus LOX-Methane Rocket Engine

PARIS (ESA PR) — ESA has given Airbus Safran Launchers the go-ahead to start working on a full-scale prototype of an ultra-low cost engine demonstrator, Prometheus, using liquid oxygen–methane propellants.

The methane reusable engine precursor in the thrust class 1000 kN will be ground tested in 2020 for use on future versions of the European launcher family, after Ariane 6 and Vega-C. Next-generation launch vehicles require a factor 10 reduction in recurrent costs of propulsion systems compared to current cryogenic engines. New propellants, the systematic application of design-to-cost approach and innovative manufacturing technologies will also be applied.

The project can derive and provide significant synergies with other propulsion demonstration projects within ESA’s Future Launchers Preparatory Programme, national agencies and industry.