I have an oblique answer to this question. I'm building an airplane
that seats four and is a high wing monoplane. The fuel tanks are in
the wing root, just like most high wing Cessnas. The plans show that
the fuel outlets should be placed near the wingroot but in different
locations fore and aft from each other. One tank has an outlet near
the wingroot by the trailing edge, the other tank has the outlet near
the wingroot but towards the leading edge.


Since it's a homebuilt, you have some flexibility in how you do things. Why
not put in two ports for each tank - one fore one aft. That way you can slip
and nose down and get fuel no matter which tank is selected? Try talking with
the designer of the plane about this - it might be worth considering.

Jose

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