Learjet 31 question
Hello,
I have a question for the learjet riders. Its about the fuel system.
What i don't understand is that at my schematic scheme i see an engine driven fuel pump with a high pressure line direct going to the jet pump, situated in the wing tank. From the jet pump there is a low fuel pressure line back to the engine.
What i would like to know if this is a closed circuit?
Or is the high pressure fuel line just going to the wing tank?
someone can help me??