RD-0110

RD-0110
Country of originUSSR
First flight1965-10-05
DesignerKBKhA
ManufacturerVoronezh Mechanical Plant[1]
ApplicationUpper Stage
Associated LVMolniya-M and Soyuz
PredecessorRD-0108
StatusIn Production
Liquid-fuel engine
PropellantLOX / RG-1
Mixture ratio2.2[2]
CycleGas Generator
Configuration
Chamber4
Performance
Thrust, vacuum298 kilonewtons (67,000 lbf)
Thrust-to-weight ratio74.36[3]
Chamber pressure6.8 megapascals (990 psi)
Specific impulse, vacuum326 seconds
Burn time250 s
Dimensions
Length1,575 millimetres (62.0 in)
Diameter2,240 millimetres (88 in)
Dry mass408.5 kilograms (901 lb)
Used in
Molniya-M Block-I and on most Soyuz Block-I
References
References[4]

The RD-0110 (or RO-8, RD-0108, RD-461 ) is a rocket engine burning liquid oxygen and kerosene in a gas generator combustion cycle. It has four fixed nozzles and the output of the gas generator is directed to four secondary vernier nozzles to supply vector control of the stage. It has an extensive flight history with its initial versions having flown more than 64 years ago.[5][6][7]

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