A power driven vessel making way shall sound at intervals of not more than 2 min one prolonged blast. A power driven vessel under way, but stopped & no making way, shall sound at intervals of not more than 2 min two prolonged blas in sucession, at intervals of about 2 sec between them.
One prolonged blast
One prolonged blast
A power-driven vessel under way sounds one prolonged blast not less than every two minutes. However if it is less than 12meters in length it is not required to give any signal.
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.
I am a power-driven vessel underway. Sound signals let other boaters know where you are located during periods of restricted visibility, such as extreme fog. If you hear the fog signal of a vessel you cannot see, slow to a minimum speed until you are sure there is not a risk of collision. One prolonged blast at intervals of not more than two minutes is the signal used by power-driven vessels when underway.
I am a power-driven vessel underway. Sound signals let other boaters know where you are located during periods of restricted visibility, such as extreme fog. If you hear the fog signal of a vessel you cannot see, slow to a minimum speed until you are sure there is not a risk of collision. One prolonged blast at intervals of not more than two minutes is the signal used by power-driven vessels when underway.
A vessel that is underway but not making way would exhibit sidelights if it is a power-driven vessel or a sailing vessel with a motor. Sidelights consist of a green light on the starboard side and a red light on the port side, indicating the vessel's orientation. Even when not making way, the sidelights serve to signal the vessel's presence and direction to other vessels in the vicinity. Additionally, a vessel at anchor would display an all-round white light instead of sidelights.
None. A vessel underway under normal conditions does not need to make any sound signal.If the vessel ceases to make way it still does not make a sound signal unless special circumstances apply.
A power-driven vessel underway typically sounds one prolonged blast of the horn or whistle at intervals of not more than two minutes. This signal indicates its presence and is used to communicate with other vessels, especially in conditions of reduced visibility. The prolonged blast lasts about four to six seconds.
None. A vessel underway under normal conditions does not need to make any sound signal.If the vessel ceases to make way it still does not make a sound signal unless special circumstances apply.
If you encounter a vessel displaying only a visible white light, it is most likely a power-driven vessel that is underway. In this situation, rules of the road require that you keep to the starboard side and pass at a safe distance. Be cautious and keep a lookout for any other lights displayed by the vessel to determine their course and intentions.
A visible white light indicates that the other vessel is a power-driven vessel.