A vessel navigating near an area of restricted visibility is required to proceed at a safe speed that allows for effective maneuvering and stopping if necessary. It must also use appropriate sound signals to indicate its presence to other vessels and maintain a lookout to detect other vessels or hazards. Additionally, vessels should be prepared to take action to avoid collisions, which may include altering course or speed.
A power-driven vessel navigating in restricted visibility must sound one prolonged blast every two minutes. This signal indicates its presence to other vessels in the vicinity. Additionally, vessels may also use other sound signals to indicate their intentions or maneuvers.
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
A masthead light is a white light located at the highest point of a vessel, typically on the mast or superstructure. It helps other vessels identify the boat's presence, direction of travel, and size when navigating in low visibility conditions. The masthead light is required by maritime regulations, especially at night or in 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