This part is from Soviet Space Program Career Conversion
cost:
1250
mass:
0.55
TechRequired:
advConstruction
engine_data:
ClosedCycle
{"isp"=>{"vac"=>345.0, "atmo"=>85.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>50.0}
resources:
LiquidFuel
90.0
Oxidizer
110.0
MonoPropellant
20.0
