This part is from RocketMotorMenagerie
cost:
40000
mass:
1.8
TechRequired:
veryHeavyRocketry
engine_data:
ssmeTMIEngine
{"isp"=>{"vac"=>480.0, "atmo"=>40.0}, "propellant_ratios"=>{"LqdHydrogen"=>1.5, "Oxidizer"=>0.1}, "max_thrust"=>570.0}
