This part is from USI Kolonization Systems (MKS/OKS)
cost:
650
mass:
0.15
category:
Propulsion
TechRequired:
heavyRocketry
engine_data:
standard
{"isp"=>{"vac"=>150.0, "atmo"=>135.0}, "propellant_ratios"=>{"Karbonite"=>1.0}, "max_thrust"=>36.0}