Volga (rocket stage)

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]

Volga[1]
ManufacturerTsSKB-Progress
Country of originRussia
General characteristics
Diameter3.2 metres (10 ft)
Length1.025 metres (3 ft 4.4 in)
Propellant mass300–900 kilograms (660–1,980 lb)
Empty mass840 kilograms (1,850 lb)
Volga
Powered by1 17D64[2][3] (KB Melnikov)
Maximum thrust2.94 kilonewtons (660 lbf)
Specific impulse307 seconds (3.01 km/s)
Burn time600 s
PropellantN2O4/UDMH
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