This part is from 8K82K aka PROTON (OLDD in USSR)
cost:
10000
mass:
1.111
category:
Propulsion
TechRequired:
advScienceTech
engine_data:
standard
{"isp"=>{"vac"=>343.0, "atmo"=>252.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>141.0}
