What is the minimum safety distance firefighters must maintain from aircraft on fire?

The correct answer is based on established safety protocols and guidelines for firefighting operations at airports. Firefighters must maintain a minimum safety distance of 300 feet from an aircraft that is on fire to protect themselves from potential hazards such as explosions, thermal radiation, and toxic smoke. This distance helps ensure that firefighters can operate safely while managing the incident, allowing them to utilize appropriate fire suppression techniques without putting themselves at severe risk from the fire or the aircraft's fuel and systems.

Maintaining this distance is critical as the risk of secondary explosions or a sudden fire spread increases in close proximity to the aircraft. By adhering to this safety protocol, firefighters can better assess the situation, implement a strategic response, and safeguard their lives and the lives of others near the scene.