This part is from SpaceY Heavy Lifters
cost:
12000
mass:
15
category:
Propulsion
TechRequired:
veryHeavyRocketry
engine_data:
SYSRB375
{"isp"=>{"vac"=>220.0, "atmo"=>195.0}, "propellant_ratios"=>{"SolidFuel"=>1.0}, "max_thrust"=>5000.0}
resources:
SolidFuel
10530.0