How long must the searchlight on a survival craft be capable of operating continuously?

The correct answer reflects that the searchlight on a survival craft must be capable of continuous operation for three hours. This requirement is essential for several reasons.

Firstly, in an emergency situation, survivors may need to attract attention for an extended period, especially during nighttime or low-visibility conditions. A searchlight that operates for a minimum of three hours ensures that crews in distress have sufficient time to signal rescuers.

Secondly, regulations governing survival crafts, particularly under the International Convention for the Safety of Life at Sea (SOLAS), emphasize the need for reliable operational equipment. The three-hour requirement is established to provide a minimum standard to ensure safety during rescues.

Additionally, having a searchlight that can operate continuously for this duration allows for flexible usage, providing the ability to monitor the surroundings or signal to potential rescuers without the risk of the light failing too soon, which could jeopardize the chances of rescue.

This requirement aims to maximize safety and effectiveness in critical situations, making the specified duration crucial for operational preparedness in survival scenarios.