This part is from Solid Propulsion Industries
cost:
18000
mass:
4.0
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
KS25
{"isp"=>{"vac"=>315.0, "atmo"=>295.0}, "propellant_ratios"=>{"SolidFuel"=>0.9}, "max_thrust"=>1000.0}
