This part is from US Rockets
cost:
325
mass:
0.86
category:
Engine
TechRequired:
start
engine_data:
standard
{"isp"=>{"vac"=>301.0, "atmo"=>102.0}, "propellant_ratios"=>{"SolidFuel"=>1.0}, "max_thrust"=>80.0}
resources:
SolidFuel
75.0