RD-0120
Type: Lower Stage Engine
Country of Origin: Soviet Union
Manufacturer: Voronezh Mechanical Plant
First Flight: May 15, 1987
Status: Retired
Propellant (O/F): Liquid Oxygen/Liquid Hydrogen
Mixture Ratio (O/F by mass): 6.0
Cycle: Staged Combustion
Chambers: 1
Thrust (vac.): 1863.9 kN (100%)
Thrust (s.l.): 1517.1 kN
Throttle: up to 106%
ISP (vac.): 455 s
ISP (s.l.): 353.2 s
Chamber Pressure: 3180 psi
Nozzle Ratio: 85.7
Burn time: 500 sec; certified for 1670 sec
Ignitions:
Mass: 3449 kg
Length: 4.55 meters
Diameter: 2.42 meters
Used in: Energia
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