RD-108
Type: Lower Stage Engine
Country of Origin: Soviet Union
Manufacturer: JSC Kuznetsov
RD-108
First Flight:
Status: Retired
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): 941.47 kN
Thrust (s.l.): 745.33 kN
Throttle: none
ISP (vac.): 315 s
ISP (s.l.): 248 s
Chamber Pressure: 740 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: R-7, Sputnik, Vostok, Voskhod
RD-108K
First Flight:
Status: Retired
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): 941.47 kN
Thrust (s.l.): 745.33 kN
Throttle: none
ISP (vac.): 314.2 s
ISP (s.l.): 248.2 s
Chamber Pressure: 740 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: Molniya
RD-108MM
First Flight:
Status: Retired
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): 833.6 kN
Thrust (s.l.): 676.68 kN
Throttle: none
ISP (vac.): 316 s
ISP (s.l.): 253 s
Chamber Pressure: 772 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: Molniya-M, Soyuz
RD-118
First Flight:
Status: Active
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): 1000.31 kN
Thrust (s.l.): 818.88 kN
Throttle: none
ISP (vac.): 314 s
ISP (s.l.): 257 s
Chamber Pressure: 848 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: Soyuz-U
RD-118PF
First Flight:
Status: Retired
Propellant (O/F): Liquid Oxygen/Syntin
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): ? kN
Thrust (s.l.): ? kN
Throttle: none
ISP (vac.): ? s
ISP (s.l.): 263.5 s
Chamber Pressure: 782 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: Soyuz-U2
RD-108A
First Flight:
Status: Active
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass):
Cycle: Gas Generator
Chambers: 4 + 4 vernier
Thrust (vac.): 921.86 kN
Thrust (s.l.): 792.41 kN
Throttle: none
ISP (vac.): 320.6 s
ISP (s.l.): 257.7 s
Chamber Pressure: 789 psi
Nozzle Ratio:
Ignitions: 1
Mass:
Length: 2.865 meters
Diameter: 1.95 meters
Used in: Soyuz-FG, Soyuz-STA, Soyuz-STB, Soyuz 2.1a, Soyuz 2.1b
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