YF-23 (rocket engine)
The YF-23 is a liquid rocket vernier engine, burning N2O4 and UDMH. It is used in along the YF-22 to form the YF-24 and YF-25 propulsion modules.
| Country of origin | China |
|---|---|
| First flight | 1974-11-05 |
| Designer | Academy of Aerospace Liquid Propulsion Technology |
| Application | Vernier engine |
| Associated LV | Feng Bao 1, Long March 2, Long March 3 and Long March 4 |
| Status | In Production |
| Liquid-fuel engine | |
| Propellant | N2O4 / UDMH |
| Mixture ratio | 1.57 |
| Configuration | |
| Chamber | 4 |
| Performance | |
| Thrust, vacuum | 47.1 kN (10,600 lbf) |
| Specific impulse, vacuum | 297 seconds (2.91 km/s) |
| Burn time | 300s |
| Used in | |
| Long March 2F, Long March 3A, Long March 3B, Long March 3C, Long March 4B and Long March 4C second stage. | |
| References | |
| References | |
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