This part is from CryoEnginesExtensions
cost:
880
mass:
0.62
category:
Engine
TechRequired:
heavyRocketry
engine_data:
standard
{"isp"=>{"vac"=>362.0, "atmo"=>156.0}, "propellant_ratios"=>{"LqdMethane"=>3.0, "Oxidizer"=>1.0}, "max_thrust"=>98.0}