Final answer:
The Booster Coil auxiliary ignition system increases voltage during start-up or under heavy load, ensuring reliable engine ignition in aircraft and similar applications.
Step-by-step explanation:
When in operation, the Booster Coil auxiliary ignition system routes power through a trailing distributor to increase the system's voltage during start-up or under heavy load.
This system is typically found in aircraft engines and other applications that require a reliable ignition under varying operating conditions. The booster coil works in tandem with the main ignition system to ensure that the engine fires correctly and maintains performance.