YF-209
Chinese liquid-fuel rocket engine
From Wikipedia, the free encyclopedia
The YF-209 is a liquid cryogenic rocket engine burning liquid methane and liquid oxygen in a gas-generator cycle. The engine is designed for reusability and commercial use.
Country of originChina
StatusActive
| Country of origin | China |
|---|---|
| Designer | Academy of Aerospace Liquid Propulsion Technology |
| Status | Active |
| Liquid-fuel engine | |
| Propellant | LOX / CH4 |
| Cycle | Gas-generator cycle |
| Configuration | |
| Chamber | 1 |
| Performance | |
| Thrust, vacuum | 825.3 kilonewtons (185,500 lbf) |
| Thrust, sea-level | 735 kilonewtons (165,000 lbf) |
| Specific impulse, vacuum | 329s |
| Specific impulse, sea-level | 293s |
| Used in | |
| Long March 12A | |
| References | |
| References | [1] |
History
The YF-209 is designed for the commercial launch market in China with reusability in mind.[2] It can be reused at least 30 times and can be restarted at least 3 times during the mission with deep throttle capabilities.[3] The engine hot fire test was successfully completed in February 2023.[4] Development has been prioritised in 2024 to meet the growing needs of the commercial launch market.[5]