This part is from The LonesomeRobots Collection
cost:
3000
mass:
5.2
TechRequired:
heavierRocketry
engine_data:
ClosedCycle
{"isp"=>{"vac"=>400.0, "atmo"=>380.0}, "propellant_ratios"=>{"SolidFuel"=>1.0}, "max_thrust"=>1700.0}
resources:
SolidFuel
6000.0