What is the purpose of the "Five Whistles" distress signal?

The "Five Whistles" distress signal is specifically designed to alert nearby vessels or searchers that assistance is needed. This sequence of signals is universally recognized as a call for help on the water, functioning effectively to draw attention to someone in distress. When a boater emits five short blasts on a whistle, it signifies an urgent situation, prompting nearby vessels or individuals to respond and provide aid.

This method of signaling is crucial in emergencies, where vocal communication might be hindered by distance or noise, ensuring that those around can quickly identify the need for help. Other signal types like radio checks, storm warnings, or navigational changes serve different purposes and do not convey an immediate need for assistance as the "Five Whistles" does.