S1.5400
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Birth and death years unknown
The S1.5400 (GRAU Index 11D33) was a Soviet single-nozzle liquid-propellant rocket engine burning liquid oxygen and kerosene in an oxidizer-rich staged combustion cycle, the first rocket engine to use this cycle in the world. It was designed by V. M. Melnikov, an alumnus of Isaev, within Korolev's Bureau, for the Molniya fourth stage, the Block-L. It was the first Soviet engine designed for start
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Accuracy is not guaranteed.
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| Country of origin | Soviet Union |
|---|---|
| First flight | 1960-10-10 |
| Last flight | 2010-09-30 |
| Designer | OKB-1 V. M. Melnikov |
| Application | Upper Stage |
| Associated LV | Molniya |
| Predecessor | S1.5400 |
| Successor | RD-58 |
| Status | Retired |
| Liquid-fuel engine | |
| Propellant | LOX / kerosene T-1 |
| Cycle | Staged combustion |
| Configuration | |
| Chamber | 1 |
| Performance | |
| Thrust, vacuum | 66.69 kilonewtons (14,990 lbf) |
| Chamber pressure | 5.4 MPa (780 psi) |
| Specific impulse, vacuum | 340 seconds |
| Burn time | up to 207 s |
| Dimensions | |
| Dry mass | 153 kilograms (337 lb) |
| Used in | |
| Molniya Blok-L | |
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