In restricted visibility, a vessel should use sound signals to communicate its presence and intentions. According to the International Regulations for Preventing Collisions at Sea (COLREGs), a power-driven vessel should sound one prolonged blast followed by two short blasts at intervals of not more than two minutes. Sailing vessels should sound one prolonged blast followed by two short blasts at the same interval. Additionally, vessels at anchor must ring the bell for five seconds at intervals of not more than one minute.
In restricted visibility, a power-driven vessel underway is required to sound one prolonged blast every 2 minutes. This signal indicates the vessel's presence and helps prevent collisions when visibility is limited. The prolonged blast typically lasts about 4 to 6 seconds.
one prolonged blast
A power-driven vessel underway in restricted visibility is required to sound a prolonged blast on its whistle every two minutes. This signal typically lasts for about four to six seconds. The purpose of this sound is to alert other vessels of its presence in conditions where visibility is limited, ensuring safety on the water.
A power-driven vessel underway in restricted visibility is required to sound one prolonged blast at intervals of not more than two minutes. This signal indicates the vessel's presence and helps prevent collisions. Additionally, if the vessel is making way through the water, it may also sound two short blasts to indicate its maneuverability.
one prolonged blast
One prolonged blast should be sounded 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.
One Prolonged Blast.
One Prolonged Blast.
one prolonged blast
One prolonged blast
In restricted visibility, a power-driven vessel under way is required to sound one prolonged blast every 2 minutes. This signal is used to indicate the vessel's position and to alert other vessels in the vicinity. The prolonged blast lasts for about four to six seconds.