This part is from Universal Aeronautics and Space Systems(UASS): T.R.A.P Engines!
cost:
17500
mass:
5.5
category:
Engine
TechRequired:
hypersonicFlight
engine_data:
HighAtmEng
{"isp"=>{"vac"=>305.0, "atmo"=>275.0}, "propellant_ratios"=>{"LiquidFuel"=>3.0, "IntakeAir"=>0.65}, "max_thrust"=>300.0}
LowAtmEngine
{"isp"=>nil, "propellant_ratios"=>{"IntakeAir"=>12.0, "LiquidFuel"=>1.2}, "max_thrust"=>200.0}