On Feb 21, 5:27*pm, "Jay Honeck" wrote:
Apparently having three other fuel tanks to choose from makes a single
tank's fuel gauge "non-required"...

Huh? FAR 91.205b9 requires, "in operable condition", a "fuel gauge
indicating the quantity of fuel in each tank". Which part of "each
tank" makes a single tank's fuel gauge sound optional?