UAT stands for Ultimate Air Trap. Its not a tank, it traps air that your turbine would potentially ingest. Your UAT should never run dry or even low. It should never even be considered part of the fuel capacity. Turbines are not like gas or glow motors. If you suck in a bubble, the flame could go out with no way to reignite. A gas motor can recover due to the continued prop rotation allowing the ignition to reignite the next compression stroke.I am a very confident pilot, but when it comes to my jets, I don't ever want to be put in the position of an unpowered turbine landing.