How many pounds of usable fuel remains in the affected wing tank when the L or R FUEL LO annunciator illuminates?

When the Left or Right FUEL LO annunciator illuminates, it indicates that the fuel quantity in the affected wing tank has dropped to a critical level. In the T-6A's fuel system, the illumination of this annunciator signifies that there are approximately 110 pounds of usable fuel remaining in the affected tank.

This design is crucial for flight safety, as it provides the pilot with a clear alert that fuel levels are low, which may require management of fuel usage or planning for a landing at an appropriate time. Understanding the significance of the FUEL LO annunciator and the corresponding fuel quantity helps pilots manage fuel resources effectively and avoid potential emergencies related to fuel starvation.