Fuel system turbo C & D

[n86121]

Years ago as a nerd I studied the fuel system of my T337D. Being concerned I not runout of fuel, I checked pretty carefully until I understood the system.

It appears for the turbo C & D models, regardless of which tank is selected, excess return fuel goes back into a manifold, then right back into the engine, and NOT back into the main tank. Thus the use of AUX tanks doesn't magically and mysteriously refill the mains, but fuels the engine.

Much simpler and less confusing.

Any comments?