This part is from LongMarch-9（CZ-9）
cost:
2000
mass:
14.42
category:
Engine
TechRequired:
start
engine_data:
CZ09_2nd
{"isp"=>{"vac"=>0.0, "atmo"=>0.0}, "propellant_ratios"=>{"ChineseHydrogen"=>8.0, "ChineseOxygen"=>4.0}, "max_thrust"=>2200.0}
