Volga, GRAU index 14S46, also designated 141KS, is a rocket upper stage designed in Russia. It is used with the Soyuz-2.1a and Soyuz-2-1v rockets to insert payloads into Sun-synchronous orbit. It is derived from the propulsion module of the Yantar spy satellites.[4] It is closely related to the retired Ikar upper stage.[3]
| Manufacturer | TsSKB-Progress |
|---|---|
| Country of origin | Russia |
| General characteristics | |
| Diameter | 3.2 metres (10 ft) |
| Length | 1.025 metres (3 ft 4.4 in) |
| Propellant mass | 300–900 kilograms (660–1,980 lb) |
| Empty mass | 840 kilograms (1,850 lb) |
| Volga | |
| Powered by | 1x 17D64[2][3] (KB Melnikov) |
| Maximum thrust | 2.94 kilonewtons (660 lbf) |
| Specific impulse | 307 seconds (3.01 km/s) |
| Burn time | 600 s |
| Propellant | N2O4/UDMH |