Back Prometheus (Raketentriebwerk) German Prometheus (motor de cohete) Spanish Prometheus (moteur-fusée) French Prometheus (motore a razzo) Italian Prometheus (raketmotor) Swedish Прометей (ракетний двигун) Ukrainian
&sq=engine&lang=en&file=File:Maquette_du_moteur-fus%C3%A9e_Prometheus_IAC_2022.jpg) Model of the Prometheus rocket engine, featured at IAC 2022. | |
| Country of origin | France European Union |
|---|---|
| Designer | ArianeGroup |
| Manufacturer | Ariane Group |
| Associated LV | Themis · Ariane Next |
| Liquid-fuel engine | |
| Propellant | LOX / CH4 |
| Cycle | Gas-generator |
| Performance | |
| Thrust, sea-level | 980 kN (220,000 lbf) |
| Throttle range | 30% to 110% |
| Chamber pressure | 100 bar (10,000 kPa) |
The Prometheus rocket engine is an ongoing European Space Agency (ESA) development effort begun in 2017 to create a reusable methane-fueled rocket engine for use on the Themis reusable rocket demonstrator and Ariane Next, the successor to Ariane 6, and possibly a version of Ariane 6 itself.[1][2]
Prometheus is a backronym from the original French project designation PROMETHEE, standing for "Precursor Reusable Oxygen Methane cost Effective propulsion System", and for the Titan Prometheus, from Greek mythology, creator of humanity, and god of fire, known for giving fire to humanity in defiance of the gods.
By 2020, the development program was funded, and is being developed for the ESA by ArianeGroup.[3]
The engine is aimed to be reusable with substantially lower costs than traditional engines manufactured in Europe. The cost goal is to manufacture the Prometheus engine at one-tenth the cost of the Ariane 5's first-stage engine.[4][3]
- ^ Cite error: The named reference
Henry 2017was invoked but never defined (see the help page). - ^ Patureau de Mirand, Antoine (July 2019). Ariane Next, a vision for a reusable cost efficient European rocket (PDF). 8th European Conference for Aeronautics and Space Sciences. doi:10.13009/EUCASS2019-949. Retrieved 18 August 2021.
- ^ a b Cite error: The named reference
ESA 2020was invoked but never defined (see the help page). - ^ Cite error: The named reference
Henry 2018was invoked but never defined (see the help page).