When should the arresting system be raised according to the request procedures?

The correct answer emphasizes that the arresting system should be raised upon request from the pilot or military authority. This reflects standard operating procedures where communication and clear requests are fundamental in ensuring the safety and efficiency of operations, particularly in a terminal environment.

When a pilot or military authority indicates a need for the arresting system to be raised, it showcases their situational awareness and specific requirements for landing or maneuvering their aircraft safely. Such requests are typically based on operational conditions or emergencies, making it critical for ground control to respond affirmatively to ensure the aircraft can operate as needed.

This procedure also underscores the importance of authority and responsibility. While ATC or ground operators must be cautious and ensure that requests are justified, the primary decision to initiate the use of the arresting system comes from those directly operating the aircraft, reflecting the collaborative nature of aviation safety and operation protocols.