This part is from Space Bus
cost:
39000
mass:
15
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
KS25
{"isp"=>{"vac"=>315.0, "atmo"=>295.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>4000.0}
