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Development of RD-171
Used in rocket stages
Government designation
  • 14D20
Design period
start
end
  • 1988
  • 1991
Use period
Diameter
  • 3.565m
Height
  • 4.15m
Thrust (vacuum)
  • 8,310,400.0N
Thrust (sea level)
  • 7,683,200.0N
Isp (vacuum)
  • 337.0s
Isp (sea level)
  • 311.0s
Dry mass
  • 10,255.0kg
Throttle ratio
Wet mass
  • 11,307.0kg
Fuel
Oxidizer
Oxidizer/fuel ratio
  • 2.6
Expansion ratio
Chamber pressure
  • 257.0bar
Number of chambers
  • 4
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Created by hedgehog Sep 23, 2007
Last edited by hedgehog May 18, 2008
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