This part is from lonesomerobots
cost:
2500
mass:
0.75
category:
Propulsion
TechRequired:
metaMaterials
engine_data:
standard
{"isp"=>{"vac"=>450.0, "atmo"=>180.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>100.0}