How long does a prolonged blast last?

A prolonged blast lasts 4 to 6 seconds. This duration is important in maritime communication as it signals to other boaters that you are alerting them or warning of your presence. It is a standard practice to use a prolonged blast in specific situations, such as during periods of reduced visibility or when navigating congested waterways. This duration ensures that the signal is long enough to be noticeably heard and understood by nearby vessels, promoting safety and awareness on the water. Understanding these signals is crucial for effective communication while boating, which can help prevent accidents and misunderstandings among operators.