What is the typical duration for which ARCAL types of airport lighting stay on once activated?

The correct duration for which ARCAL (Aircraft Radio Control of Aerodrome Lighting) types of airport lighting remain activated is typically around 15 minutes. This feature is designed to enhance safety during landing and takeoff, particularly at airports where lighting may not be continuously illuminated. When a pilot activates the ARCAL system using a specific radio transmission, the lighting stays on for this duration, allowing pilots adequate time to land or takeoff without the lights automatically turning off before they can complete their maneuvers.

The option that states 15 minutes is grounded in standard aeronautical practices, ensuring that pilots have sufficient lighting to navigate effectively even if their operations take longer than anticipated. The other durations provided do not align with the typical operational protocols for ARCAL systems, which prioritize a balance between safety and energy conservation in lighting management.