In restricted visibility, a power-driven vessel underway must take specific precautions to ensure safety and comply with maritime navigation rules. It is required to sound appropriate sound signals, maintain a proper lookout, and reduce speed to a safe level to avoid collisions. Additionally, the vessel should be equipped with radar and, if possible, use it to detect other vessels in proximity. The vessel must also be prepared to take evasive action if necessary.
one prolonged blast
lights must be on during periods of restricted visibility
one prolonged blast
One Prolonged Blast.
One Prolonged Blast.
one prolonged blast
one prolonged blast
One prolonged blast
Lights must be on during periods of restricted visibility. ref: EQ-2
One prolonged blast
one prolonged blast
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.