This part is from KerwisChineseAerospacePack
cost:
8600
mass:
0.6
category:
Engine
TechRequired:
advRocketry
engine_data:
YF-75
{"isp"=>{"vac"=>350.0, "atmo"=>150.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>56.0}