This part is from History of Spaceflight RSS
cost:
200
mass:
0.3
category:
Engine
TechRequired:
solids1959
engine_data:
PrimaryMode
{"isp"=>{"vac"=>297.0, "atmo"=>272.0}, "propellant_ratios"=>{"HTPB"=>0.5649717514124294}, "max_thrust"=>78.0}
