When underway, a power-driven vessel displays a combination of navigation lights: a white masthead light at the front, sidelights (green on the starboard side and red on the port side), and a white stern light at the rear. The masthead light is visible from ahead and extends 225 degrees, while the sidelights are visible from the side and ahead. The stern light provides visibility from behind. These lights help ensure the vessel is seen and identified by other vessels during nighttime or low visibility conditions.
red and green sidelights
On power-driven vessels, navigation lights must be on during periods of restricted visibility.
On power-driven vessels, navigation lights must be on during periods of restricted visibility.
On power-driven vessels, navigation lights must be displayed in accordance with the International Regulations for Preventing Collisions at Sea (COLREGs). Typically, these vessels should show a white masthead light, red and green sidelights, and a sternlight when underway. The lights must be visible from specific angles and distances to ensure safe navigation and to signal the vessel's status to others. Proper use of navigation lights is crucial for preventing collisions during both day and night.
Navigation lights must be on during periods of restricted visibility.
The anchor light at the top of the mast should not be used by a sailboat underway at night. Frequently it is left on when leaving an anchorage along with the steaming and navigation lights.
A masthead light, side lights and a stern light are the lights that power driven vessels less than 65.6 feet long and underway between sunset and sunrise exhibit.
The navigation lights required on a vessel are determined by its size, type, and the conditions under which it operates, as outlined in the International Regulations for Preventing Collisions at Sea (COLREGs). Vessels are classified into categories such as power-driven, sailing, and fishing vessels, each with specific light configurations. Additionally, the operational context, such as whether the vessel is at anchor or underway, also influences the required lighting. Compliance with these regulations ensures safety and visibility on the water.
On power-driven vessels, navigation lights must be on during periods of restricted visibility.
Lights must be on during periods of restricted visibility
Lights must be on during periods of restricted visibility
Power-driven vessels must display specific navigation lights to indicate their presence and movement at night or in low visibility. Typically, they show a red light on the port side (left), a green light on the starboard side (right), and a white stern light at the rear. Additionally, a white masthead light is required, visible from ahead and at a distance. These lights help other vessels identify the type and direction of the power-driven vessel.