This part is from NewTantaresLV
cost:
1100
mass:
1.25
TechRequired:
precisionPropulsion
engine_data:
MainNozzles
{"isp"=>{"vac"=>317.0, "atmo"=>105.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>235.0}