Originally Posted by
jvaliensi
Should the MAP set flat in the aircraft, so that the central line of the tank is parallel with the neutral axis of the airplane.
I see many with the MAP tilted up a bit, Seems like that is good unless you fly inverted.
The orientation of any air trap should make it easy to purge all the air when filling. Flying inverted has nothing to do with it as the fuel pickup is always in the center of the air trap.