This part is from Old Parts Redux
cost:
1100
mass:
1.25
category:
Engine
TechRequired:
generalRocketry
engine_data:
standard
{"isp"=>{"vac"=>310.0, "atmo"=>265.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>240.0}