This part is from LongMarch-5（CZ-5）
cost:
35000
mass:
0.58
category:
Engine
TechRequired:
basicRocketry
engine_data:
CZ_YF75D2
{"isp"=>{"vac"=>450.0, "atmo"=>325.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>500.0}
