This part is from Realism Overhaul
cost:
20000
mass:
48.2
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
standard
{"isp"=>{"vac"=>276.0, "atmo"=>249.0}, "propellant_ratios"=>{"PBAN"=>1.0}, "max_thrust"=>7305.0}
SC-MSRM
{"isp"=>{"vac"=>276.0, "atmo"=>249.0}, "propellant_ratios"=>{}, "max_thrust"=>7305.0}