If an electric failure occurs, how does it affect the magneto?

When an electric failure occurs in an aircraft, the magneto continues to operate because it is a self-contained system that does not rely on the aircraft's electrical system to generate sparks for ignition. Magnetos operate by using mechanical energy from the engine to create voltage, which generates the spark required for combustion in the engine's cylinders.

This unique feature makes magnetos reliable, particularly in situations where electrical failure may affect other systems in the aircraft. Since they do not depend on electrical power, they are designed to function independently, ensuring that the engine continues to run even when electrical systems are compromised. This capability is crucial for safe operation, providing redundancy in the ignition system and contributing to overall flight safety.

Understanding this functionality is vital for pilots, especially during emergencies where they must assess the aircraft's ability to operate under various failure scenarios. Other options may imply that electrical issues could cause the magneto to malfunction or stop working, which doesn't align with the magneto's design characteristics.