This part is from KSP Interstellar Extended
cost:
78200
mass:
7.25
category:
Engine
TechRequired:
exoticEfficiencyPropulsion
engine_data:
mhEgnine
{"isp"=>{"vac"=>2202.0, "atmo"=>550.0}, "propellant_ratios"=>{"DiatomicMetastableHelium"=>1.0}, "max_thrust"=>1500.0}
resources:
WasteHeat
1000.0