This part is from SSTO Project
cost:
10000
mass:
4.5
category:
Engine
TechRequired:
heavyRocketry
engine_data:
S1SRB
{"isp"=>{"vac"=>330.0, "atmo"=>300.0}, "propellant_ratios"=>{"Oxidizer"=>1.1, "LiquidFuel"=>0.9}, "max_thrust"=>700.0}
resources:
LiquidFuel
1170.0
Oxidizer
1430.0