This part is from Making History DLC
cost:
1100
mass:
1.25
category:
Engine
TechRequired:
heavierRocketry
engine_data:
standard
{"isp"=>{"vac"=>300.0, "atmo"=>285.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>260.0}
319 Craft use this part
(ordered by download count)