RD-193
Type: Lower Stage Engine
Country of Origin: Russia
Manufacturer: NPO Energomash
First Flight:
Status: In development
Propellant (O/F): Liquid Oxygen/Kerosene
Mixture Ratio (O/F by mass): 2.6
Cycle: Staged Combustion
Chambers: 1
Thrust (vac.): 2085 kN
Thrust (s.l.): 1920 kN
Throttle: 27% to 105%
ISP (vac.): 337.5 s
ISP (s.l.): 311.2 s
Chamber Pressure: 3740 psi
Nozzle Ratio: 36.87
Burn time: 325 sec
Ignitions: 1
Mass: 1900 kg
Length: 3.0 m
Diameter: 2.1 m
Used in: Soyuz 2.1v
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