This part is from Chrayol Design Org.
cost:
800
mass:
0.85
category:
Engine
TechRequired:
heavierRocketry
engine_data:
standard
{"isp"=>{"vac"=>308.0, "atmo"=>90.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>7.5}
resources:
LiquidFuel
13.5
Oxidizer
16.5
MonoPropellant
15.0
ElectricCharge
100.0