Once the ignition switch is in the ON position, how are the igniters managed?

The correct answer is that the igniters are automatically energized and de-energized by the PMU (Power Management Unit) once the ignition switch is in the ON position. This is key to understanding how the ignition system works within the T-6B aircraft.

The PMU plays a critical role in managing the engine's operations, including control of the igniters. When the ignition switch is turned ON, the PMU takes over the management of the igniters, ensuring that they function in accordance with the aircraft’s needs for starting the engine and maintaining flame stability during operations. This automatic control enhances reliability and ensures that the igniters are activated when needed and safely deactivated afterwards, minimizing risk of unnecessary ignition.

In contrast, other options describe different methods of igniter management that do not align with the T-6B's operational design. For example, the notion that igniters remain energized until manually turned off misrepresents their automated functionality. Claiming that they operate independently from the PMU overlooks the integrated systems designed to ensure optimal performance. Lastly, stating that igniters are only energized during the starting sequence underestimates their role during other phases, such as maintaining engine stability. The PMU is central to the automated and efficient management of