Marine Shape Recognition by Day
Towing an inconspicuous, partly submerged object An inconspicuous, partly submerged vessel or object, or combination of such vessels or objects being towed, shall exhibit: if it is less than 25 metres in breadth, one all-round white light at or near the forward end and one at or near the after end if it is 25 metres or more in breadth, two additional all-round white lights at or near the extremities of its breadth; if it exceeds 100 metres in length, additional all-round white lights between these lights so that the distance between the lights shall not exceed 100 metres; a diamond shape at or near the aftermost extremity of the last vessel or…
Towing A power-driven vessel when towing shall exhibit: two masthead lights in a vertical line. When the length of the tow, measuring from the stern of the towing vessel to the after end of the tow exceeds 200 metres, three such lights in a vertical line;sidelights;a sternlight;a towing light in a vertical line above the sternlight;when the length of the tow exceeds 200 metres, a diamond shape where it can best be seen. Tugboat longer than 50 m - tow longer than 200 mAbeam, port sideAhead, Day sign(diamond shapes)AheadAsternTugboat shorter than 50 m - tow longer than 200 mAbeam, port sideAhead, Day sign(diamond shapes)AheadAsternTugboat longer than 50 m - tow shorter than 200…
Aground Aground, longer than 50 mDay sign (3 black spheres)Abeam, port sideAheadAstern
Anchoring Lights (Colreg) Colreg rules. Lights during anchoring. Vessel of less than 50 m in length at anchor from sunset to sunrise and from sunrise to sunset in restricted visibility Anchored vessel, longer than 50 mDay sign (1 black sphere)Abeam, port sideAheadAsternAnchored vessel, shorter than 50 mDay sign (1 black sphere)Abeam, port sideAheadAsternAnchored sailing boatDay sign (1 black sphere)Abeam, port sideAheadAstern
Sailing and Motoring A vessel proceeding under sail which has her engine running shall exhibit forward where it can best be seen a conical shape, apex downwards.She shall exibit lights according to a power-driven vessel. Sailing and motoringDay signAbeam, port sideAheadAstern
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,…
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