Permissible variations to this rule appear below. The basic rule is that sidelights and a stern light are required. Powerboats and sailboats under power that are less than 20m (65.7') can substitute a single bi-color light for sidelights.
Powerboats that are less than 12m (39.4') may substitute a single all-round light for separate stern and masthead lights.NOTE: Sailboats operating under engine power are considered power-driven and must follow the “Under Power” rules. The basic rule is that side lights, a masthead light and a stern light are required. Powerboats and Sailboats When Under Power Larger boats are required to use lights with a higher visibility range and cannot combine sidelights into a single bi-color light. Navigation lights requirements vary depending on the length of the boat. Navigation Lights Requirements Depend on Vessel Size When under power they must follow the rules of the road for powerboats.Ĭhuck Hawley discusses options for navigation lights on your boat and what lights you can combine. Sailboats with sails up during the day, but are also under power, must fly a black "steaming cone," with its point downward, where it can be seen.Sailboats under power are considered powerboats.
LARGER THAN LIGHT LIGHTING FULL
(Thus, the sidelights and stern light create a full circle of light.)
Stern lights are white and shine aft and 67.5° forward on each side.Port sidelights are red, starboard sidelights are green and both shine from dead ahead to 112.5° aft on either side.Recent changes to the Inland Navigation Rules make them nearly identical to the International Rules, so we will describe the International Rules to simplify the choices. Recreational boats operating at night are required to display navigation lights between sunset and sunrise.
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