This part is from KrakenScience
cost:
110
mass:
0.02
category:
Engine
TechRequired:
propulsionSystems
engine_data:
standard
{"isp"=>{"vac"=>325.0, "atmo"=>80.0}, "propellant_ratios"=>{"MonoPropellant"=>0.5}, "max_thrust"=>4.0}