This part is from SpaceY
cost:
54000
mass:
16.35
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
SYE1
{"isp"=>{"vac"=>280.0, "atmo"=>260.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>6000.0}
