RK-K-75D

This part is from CONTARES

cost:
2500
mass:
0.25
TechRequired:
heavierRocketry
engine_data:
ClosedCycle
{"isp"=>{"vac"=>416.0, "atmo"=>310.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>84.0}

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