This part is from SpaceY
cost:
22000
mass:
35.1
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
SYSRB25X
{"isp"=>{"vac"=>220.0, "atmo"=>195.0}, "propellant_ratios"=>{"SolidFuel"=>1.0}, "max_thrust"=>6200.0}
resources:
SolidFuel
21060.0