This part is from LongMarch-9（CZ-9）
cost:
2000
mass:
2.8
category:
Engine
TechRequired:
start
engine_data:
CZ09_3rd-S
{"isp"=>{"vac"=>0.0, "atmo"=>0.0}, "propellant_ratios"=>{"ChineseHydrogen"=>1.0, "ChineseOxygen"=>0.5}, "max_thrust"=>400.0}
