This part is from Klockheed Martian
cost:
6250
mass:
6
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
standard
{"isp"=>{"vac"=>390.0, "atmo"=>385.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>775.0}