This part is from Chrayol Design Org.
cost:
1500
mass:
0.5
category:
Engine
TechRequired:
heavierRocketry
engine_data:
standard
{"isp"=>{"vac"=>296.0, "atmo"=>190.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>362.5}