This part is from SETI-Rebalance
cost:
0
mass:
1
category:
Propulsion
TechRequired:
basicRocketry
engine_data:
standard
{"isp"=>{"vac"=>10.0, "atmo"=>20.0}, "propellant_ratios"=>{"SolidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>52.0}