ORIGINAL: scale only 4 me
also positive ''G''s help hold the fuel toward the rear of the tank in most maneuvers.
That's a myth. We have videos to prove it too!!
However the first statement of "of course with only 1/3 a tank" is correct.
Point the nose down, and the clunk becomes uncovered.... and air gets into the line. There is no avoiding that unless you go to a bladder tank.