This part is from Contares RUS
cost:
3540
mass:
0.8
TechRequired:
propulsionSystems
engine_data:
ClosedCycle
{"isp"=>{"vac"=>301.0, "atmo"=>260.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>71.35}
OpenCycle
{"isp"=>{"vac"=>301.0, "atmo"=>260.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>591.175}