This part is from lonesomerobots
cost:
3800
mass:
1.9
category:
Propulsion
TechRequired:
specializedControl
engine_data:
standard
{"isp"=>{"vac"=>430.0, "atmo"=>268.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>350.0}