"George Patterson" wrote

No, I just find it amazing that the slope of the tanks could be severe
enough on
a trike to require a stick like those used on tailwheel aircraft. Hence,
the
question.

The slope of the tank due to dihedral (sp?) is the problem, if the cap is at
a point furthest out from the wing, and the tank is long. (chordwise)

The same principle, only in reverse, would hold for a gauge sending unit in
the lower end of the tank. It would read completely full, until the top
burns off of the tank, but it would tell how low your gas level is, in
spades.

That is the beauty of Jim's capacitance sending unit, because you can
install it lengthwise, from the bottom inboard to the top outboard at the
cap. It will start going down when the first fuel is used, and still be
going down, right up until the fan stops turning.
--
Jim in NC