This part is from KerwisChineseAerospacePack
cost:
8600
mass:
1.0
category:
Engine
TechRequired:
advRocketry
engine_data:
YF-3
{"isp"=>{"vac"=>320.0, "atmo"=>200.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>80.0}