Zenit-3SL
 Zenit-3SL | |
| Function | Carrier rocket |
|---|---|
| Manufacturer | Yuzhmash (Zenit) RKK Energia (Block-DM) Boeing (fairing) |
| Country of origin | Ukraine |
| Size | |
| Height | 59.6 metres (196 ft) |
| Diameter | 3.9 metres (13 ft) |
| Mass | 462,200 kilograms (1,019,000 lb) |
| Stages | Three |
| Capacity | |
| Payload to GTO | |
| Mass | 6,160 kilograms (13,580 lb) |
| Associated rockets | |
| Family | Zenit |
| Derivative work | Zenit-3SLB |
| Launch history | |
| Status | Retired |
| Launch sites | Ocean Odyssey |
| Total launches | 36 |
| Success(es) | 32 |
| Failure | 3 |
| Partial failure | 1 |
| First flight | 28 March 1999 (test flight) |
| Last flight | 26 May 2014 (Eutelsat 3B) |
| First stage | |
| Powered by | 1 RD-171 |
| Maximum thrust | 8,180 kilonewtons (1,840,000 lbf) |
| Specific impulse | 337 sec |
| Burn time | 150 seconds |
| Propellant | RP-1/LOX |
| Second stage | |
| Powered by | 1 RD-120 1 RD-8 |
| Maximum thrust | 912 kilonewtons (205,000 lbf) 79.5 kilonewtons (17,900 lbf) |
| Specific impulse | 349 sec |
| Burn time | 315 seconds |
| Propellant | RP-1/LOX |
| Third stage – Block DM-SL | |
| Powered by | 1 RD-58M |
| Maximum thrust | 84.9 kilonewtons (19,100 lbf) |
| Specific impulse | 352 sec |
| Burn time | 650 seconds |
| Propellant | RP-1/LOX |
The Zenit-3SL was an expendable carrier rocket operated by Sea Launch. First flown in 1999, it was launched 36 times, with three failures and one partial failure. It was a member of the Zenit family of rockets, and is built by the Yuzhnoye Design Bureau. RKK Energia produced the Block DM-SL upper stage, whilst the payload fairing was produced by Boeing. Launches were conducted from the Ocean Odyssey platform anchored on the equator in the Pacific Ocean, at a point with 154°W longitude, about 370 kilometres east of Kiritimati.