This part is from Super Heavy Boosters Historical - Nexus
cost:
15800
mass:
67
category:
Propulsion
TechRequired:
veryHeavyRocketry
engine_data:
AblatorExhausted
{"isp"=>{"vac"=>420.0, "atmo"=>375.0}, "propellant_ratios"=>{"LqdHydrogen"=>2.35239, "Oxidizer"=>0.166667}, "max_thrust"=>25031.0}
AblativelyCooled
{"isp"=>{"vac"=>407.0, "atmo"=>357.0}, "propellant_ratios"=>{"LqdHydrogen"=>2.35239, "Oxidizer"=>0.166667, "Ablator"=>0.0215}, "max_thrust"=>43520.0}
resources:
Ablator
40000.0