This part is from SpaceY
cost:
32000
mass:
9.0
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
SYP4
{"isp"=>{"vac"=>400.0, "atmo"=>200.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>7000.0}
