This part is from Knes
cost:
8200
mass:
8.45
TechRequired:
heavyRocketry
engine_data:
MainNozzles
{"isp"=>{"vac"=>300.0, "atmo"=>290.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>940.0}
resources:
LiquidFuel
6075.0
Oxidizer
7425.0