In restricted visibility, a power-driven vessel must proceed at a safe speed to avoid collisions, allowing for effective maneuverability. The vessel should sound appropriate signals, such as short blasts on the horn, to indicate its presence to other vessels. Additionally, the vessel must maintain a lookout and be prepared to take evasive action if necessary. Compliance with the International Regulations for Preventing Collisions at Sea (COLREGs) is crucial during such conditions.
lights must be on during periods of restriced visibility
during periods of restricted visibility
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
lights must be on during periods of restricted visibility
one prolonged blast
One prolonged and two short blasts is 'D' in Morse signals. It is a signal to be used in restricted visibility by a vessel not under command[NUC], a vessel restricted in her ability to manoeuvre[RAM], a vessel constrained by her draught, a sailing vessel, a vessel engaged in fishing and a vessel engaged in towing or pushing another vessel.
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 vessel at anchor or aground in restricted visibility
one prolonged blast
one prolonged blast
One Prolonged Blast.