This part is from lonesomerobots
cost:
7000
mass:
1.5
category:
Propulsion
TechRequired:
specializedControl
engine_data:
standard
{"isp"=>{"vac"=>420.0, "atmo"=>295.0}, "propellant_ratios"=>{"MonoPropellant"=>1.0}, "max_thrust"=>240.0}