This part is from Soviet Rockets - R7/Proton/Zenit Rockets and more
cost:
1300
mass:
0.47
category:
Structural
TechRequired:
generalRocketry
engine_data:
standard
{"isp"=>{"vac"=>250.0, "atmo"=>230.0}, "propellant_ratios"=>{"SolidFuel"=>1.0}, "max_thrust"=>4.2}
resources:
SolidFuel
0.22