This part is from Custom Clusters by Vanguard Astrodynamics
cost:
200
mass:
0.06
category:
Engine
TechRequired:
propulsionSystems
engine_data:
standard
{"isp"=>{"vac"=>340.0, "atmo"=>240.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>10.0}