This part is from KSP Interstellar Extended
cost:
180000
mass:
7.25
category:
Engine
TechRequired:
tremendousEfficiencyPropulsion
engine_data:
mhEgnine
{"isp"=>{"vac"=>1007.1, "atmo"=>900.0}, "propellant_ratios"=>{"MtlHydrogen"=>0.1, "LqdHydrogen"=>2.0}, "max_thrust"=>2465.18}
resources:
WasteHeat
1000.0