30 minutes before sunset and 30 minutes after sunrise and in reduced visibility
Warship use the same navigation lights as civilian ships. Additional lights may be shown if engaged in special duties.
during periods of restricted visibility
Navigation lights must be on during periods of restricted visibility.
Navigation lights
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.
AT NIGHT!30 minutes prior to sundown and thirty minutes after sunup
Navigation lights are essential for maritime safety, as they help vessels identify each other’s position, direction, and status in low visibility conditions. Typically, boats have specific colored lights: red on the port side, green on the starboard side, and white lights at the stern and masthead. These lights must be displayed during nighttime and in poor visibility to prevent collisions. Proper functioning and visibility of navigation lights are critical for compliance with maritime regulations and safe navigation on waterways.
Missiles do not home on lights; they generally target the hot exhaust from the engine. The navigation and beacon lights on a jet are turned off to prevent them being seen by the enemy; they are never turned off on a commercial aircraft (except obviously when the aircraft is not in use).
lights must be on during periods of restriced visibility
green, red, white