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| Function | Medium-lift launch vehicle |
|---|---|
| Manufacturer | OKB-1 |
| Country of origin | Soviet Union |
| Size | |
| Height | 50 m (160 ft) |
| Diameter | 10.3 m (34 ft) |
| Mass | 300,000 kg (660,000 lb) |
| Stages | 3 |
| Capacity | |
| Payload toLEO | |
| Mass | 5,500 kg (12,100 lb) |
| Associated rockets | |
| Family | R-7 |
| Launch history | |
| Status | Retired |
| Launch sites | Baikonur,Site 31/6 |
| Total launches | 3[1] |
| Success(es) | 3 |
| First flight | 24 November 1970 |
| Last flight | 12 August 1971 |
| Carries passengers or cargo | LK |
| Boosters (First stage) – Block B, V, G & D[a] | |
| No. boosters | 4 |
| Powered by | 1 × RD-107-8D728 |
| Maximum thrust | 995 kN (224,000 lbf) |
| Total thrust | 3,980 kN (890,000 lbf) |
| Specific impulse | 314 s (3.08 km/s) |
| Burn time | 119 seconds |
| Propellant | LOX / RP-1 |
| Second stage (core) – Block A | |
| Powered by | 1 × RD-108-8D727 |
| Maximum thrust | 977 kN (220,000 lbf) |
| Specific impulse | 315 s (3.09 km/s) |
| Burn time | 291 seconds |
| Propellant | LOX / RP-1 |
| Third stage | |
| Powered by | 1 × RD-0110 |
| Maximum thrust | 294 kN (66,000 lbf) |
| Specific impulse | 330 s (3.2 km/s) |
| Burn time | 246 seconds |
| Propellant | LOX / RP-1 |
TheSoyuz-L (Russian:Союз,lit. 'union',GRAU index:11A511L) was aSovietexpendablecarrier rocket designed byOKB-1 and manufactured byState Aviation Plant No. 1 inSamara, Russia. It was created to test theLK lunar lander inlow Earth orbit, as part of theSoviet lunar programme.
The Soyuz-L was a derivative of the originalSoyuz rocket featuring the reinforced first stage and boosters supporting theMolniya-M's third stage, so that it could carry a more massive payload. A largerpayload fairing was also fitted, to accommodate the LK spacecraft.[2] The Soyuz-L was only launched three times between 1970 and 1971, all successful.[1] The laterSoyuz-U used a similar configuration to the Soyuz-L.
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