This part is from KerwisChineseAerospacePack
cost:
8600
mass:
1.1
category:
Engine
TechRequired:
advRocketry
engine_data:
YF-21
{"isp"=>{"vac"=>308.0, "atmo"=>280.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>210.0}
