Sailing vessels underway and vessels under oars A sailing vessel underway shall exhibit: sidelights;a sternlight. In a sailing vessel of less than 20 metres in length the lights may be combined in one lantern carried at or near the top of the mast where it can best be seen. A sailing vessel underway may, in addition to the lights, exhibit at or near the top of the mast, where they can best be seen, two all-round lights in a vertical line, the upper being red and the lower green, but these lights shall not be exhibited in conjunction with the combined lantern. A sailing vessel of less than 7 metres in length shall,…
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Power-driven vessel underway A power-driven vessel underway shall exhibit: a masthead light forward;a second masthead light abaft of and higher than the forward one; except that a vessel of less than 50 metres in length shall not be obliged to exhibit such light but may do so;sidelights;a sternlight. Power driven vessel underway, longer than 50 mAbeam, port sideAheadAsternPower driven vessel underway, shorter than 50 mAbeam, port sideAheadAstern
Fishing, other than trawling A vessel engaged in fishing, other than trawling, shall exhibit: two all-round lights in a vertical line, the upper being red and the lower white, or a shape consisting of two cones with apexes together in a vertical line one above the other; when there is outlying gear extending more than 150 metres horizontally from the vessel, an all-round white light or a cone apex upwards in the direction of the gear; when making way through the water, in addition to the lights prescribed here, sidelights and a sternlight. Fishing vessel, other than trawlingDay signAbeam, port sideAheadAstern
Not under command A vessel not under command shall exhibit: Two all-round red lights in a vertical line where they can best be seen; Two spherical shapes in a vertical line where they can best be seen; and When making way through the water also normal sidelights and a sternlight (not shown in the example below). Vessel not under command, not making way through the waterDay sign (two black spheres)Abeam, port sideAheadAsternSailing boat, no wind, no mechanical propulsionAbeam, port sideAheadAstern
Dredging or underwater operations A vessel engaged in dredging or underwater operations, when restricted in her ability to manoeuvre Dredging or underwater operations, shorter than 50 m, not making wayAhead, day signsAheadAsternDredging or underwater operations, shorter than 50 m, making wayAhead, day signsAheadAsternDredging or underwater operations, longer than 50 m, making wayAhead, day signsAheadAstern
Restricted in her ability to Maneuver A vessel restricted in her ability to manoeuvre, except a vessel engaged in mine clearance operations, shall exhibit: three all-round lights in a vertical line where they can best be seen. The highest and lowest of these lights shall be red and the middle light shall be white; three shapes in a vertical line where they can best be seen. The highest and lowest of these shapes shall be balls and the middle one a diamond; when making way through the water, also a masthead light or lights, sidelights and a sternlight Restricted in her ability to manoeuvre, not making way through the waterDay sign: two black spheres…
Pilot boat Rule 29 (Pilot vessels) Pilot boat, shorter than 50 mAbeam, starboard sideAheadAstern (a) A vessel engaged on pilotage duty shall exhibit: (i) at or near the masthead, two all-round lights in a vertical line, the upper being white and the lower red;(ii) when underway, in addition, sidelights and a sternlight;(iii) when at anchor, in addition to the lights prescribed in sub-paragraph (i), the light, lights or shape prescribed in Rule 30 for vessels at anchor. (b) A pilot vessel when not engaged on pilotage duty shall exhibit the lights or shapes prescribed for a similar vessel of her length.
Minesweeper A vessel engaged in mine clearance operations shall in addition to the lights prescribed for a power-driven vessel, or to the lights or shape prescribed for a vessel at anchor, exhibit three all-round green lights or three balls. One of these lights or shapes shall be exhibited near the mast head and one at each end of the fore yard. These lights or shapes indicate that it is dangerous for another vessel to approach within 1000 metres of the mine clearance vessel. Minesweeper, shorter than 50 mAhead, day signs (3 black spheres)AheadAstern
Navigation lights are used to prevent collisions at night or in times of reduced visibility, and are an essential tool in keeping you and your vessel safe. Nav lights allow you to see other nearby vessels, and allow other vessels to see you. Masthead lightA white light placed over the fore and aft centreline of the vessel showing an unbroken light over an arc of the horizon of 225° and so fixed as to show the light from right ahead to 22.5° abaft the beam on either side of the vessel.Sidelightmeans a green light on the starboard side and a red light on the port side each showing an unbroken light over an arc of the horizon…
