In restricted visibility, a power-driven vessel underway is required to sound one prolonged blast every two minutes. This signal helps communicate the vessel's presence to other nearby vessels, especially when visibility is limited. The prolonged blast lasts for about four to six seconds and is an essential safety measure to prevent collisions.
one prolonged blast
one prolonged blast
one prolonged blast
One prolonged blast
one prolonged blast
One prolonged blast
One prolonged blast should be sounded every two minutes.
One prolonged blast should be sounded every two minutes.
One prolonged blast should be sounded every two minutes.
one prolonged blast every 2 minutes
One horn blast every two minutes.
In restricted visibility, a power-driven vessel underway is required to sound one prolonged blast every 2 minutes. This signal is meant to indicate the vessel's presence to other nearby vessels in low visibility conditions. The prolonged blast lasts for about 4 to 6 seconds. This sound signal helps enhance safety by alerting others to the vessel's location, allowing for better navigation and collision avoidance.