Give-way to the starboard side
When a powerboat is approaching the starboard side of a sailboat in darkness or reduced visibility, it must maintain a safe distance and be prepared to take evasive action if necessary. According to navigation rules, the powerboat is considered the give-way vessel, meaning it should avoid interfering with the sailboat's course. The powerboat should also ensure that its navigation lights are clearly visible to indicate its presence to the sailboat.
If daytime visibility is poor but not seriously reduced, you should switch on your low-beam headlights. This will help increase your visibility to other drivers and make it easier for them to see you.
Turn on navigation lights.
Turn on navigation lights.
When a powerboat approaches a sailboat on its starboard side in darkness or reduced visibility, it must take care to maintain a safe distance and reduce speed to avoid collision. The powerboat should also ensure that its navigation lights are illuminated and clearly visible. Additionally, it is important to sound an appropriate signal to alert the sailboat of its presence and intentions. Finally, the powerboat operator should be prepared to take evasive action if necessary.
When powerboat A approaches sailboat B head-on in darkness or reduced visibility, it is required to take evasive action to avoid a collision. According to the International Regulations for Preventing Collisions at Sea (COLREGs), both vessels should alter their course to starboard to pass each other port-to-port. Additionally, powerboat A must maintain a proper lookout and ensure it is navigating safely while considering the conditions.
Turn on Navigation Lights
reduced visibility and you don't want to outrun your headlights
All around white light
When approaching the starboard side of a sailboat in reduced visibility, the powerboat should reduce speed to allow for better maneuverability and reaction time. It should maintain a lookout for navigational lights and shapes to determine the sailboat's position and heading. Additionally, the powerboat should sound the appropriate signals to alert the sailboat of its presence and ensure safe passing. Lastly, the operator should be prepared to take evasive action if necessary to avoid a collision.
All around white light
A visible white light on another vessel indicates that it is approaching you head-on. This means you should also exhibit a white light to signify that your vessel is also approaching head-on.