This part is from Taerobee
cost:
500
mass:
0.192
category:
Propulsion
TechRequired:
start
engine_data:
ClosedCycle
{"isp"=>{"vac"=>275.0, "atmo"=>260.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>35.0}