This part is from M.O.T.H.S.
cost:
400
mass:
1.625
category:
Engine
TechRequired:
start
engine_data:
standard
{"isp"=>{"vac"=>300.0, "atmo"=>260.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>200.0}