Now I see it
Pretty close. The main tank is vented. The fuel lines from the wing tanks go to
the pump. The pump is not electrical, it is a jet pump that uses high pressure
fuel from the engine to create low pressure to draw fuel from the wings to
the main tank. In your diagram the fuel would flow from the wings through the
pump to the main tank. Fuel also flows from the engine in your diagram through
the solenoid (when open) and pump to the tank. The fuel supply to the engine
isnt depicted and doesnt need to be. There are also one way check valves between
the wing tank solenoids and the pump so fuel can only come out of the wing
tanks. The main tank has a high and low level sensor to signal when the valves
should open or close. The goal is to always keep the main tank full until the
wings are empty
Pete
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