This part is from History of Spaceflight RSS
cost:
250
mass:
0.25
category:
Engine
TechRequired:
orbitalRocketry1967
engine_data:
PrimaryMode
{"isp"=>{"vac"=>286.9, "atmo"=>239.5}, "propellant_ratios"=>{"UDMH"=>1.0, "NTO"=>1.6}, "max_thrust"=>320.2}
