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LIGHTS AND SHAPES - 14244_180
Figure 9-23.Vessels at anchor: (A) vessel less than 50 meters; (B) vessel greater than 50 meters - 14244_182

Signalman 3 & 2 - Aviation theories and other practices
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Figure 9-22.—Pilot vessel, under way. an all-round white light at a level lower than the light in the forepart of the vessel. Rule 30 applies here. NOTE A vessel less that 50 meters may substi- tute one white light where best seen. A vessel 100 meters or greater is required to illuminate its decks. Towing Vessels There are various light signals for towing (fig. 9-24). We will discuss a few in the following paragraphs. LESS THAN 50 METERS.—A power-driven vessel less than 50 meters that is towing astern and the length of the tow does not exceed 200 meters is required to display two masthead lights, sidelights, and a yellow-over-white sternlight. GREATER THAN 50 METERS.—A power- driven vessel greater than 50 meters that is towing astern and the length of tow does not exceed 200 meters is required to display two masthead lights, an after masthead light, sidelights, and a yellow-over- white sternlight. LESS THAN 50 METERS, TOW EXCEEDS 200 METERS.—A vessel less than 50 meters that is towing astern with the length of tow exceeding 200 meters must display three masthead lights, sidelights, and a yellow-over-white sternlight. The dayshape display will be a DIAMOND. TOWING, RESTRICTED MOVEMENT.—A vessel unable to deviate from its course and the length of tow does not exceed 200 meters is to display two masthead lights, sidelights, a yellow-over-white sternlight, and the light signal RED-WHITE-RED. The dayshape display will be BALL-DIAMOND- BALL and a DIAMOND. When the length of tow exceeds 200 meters, the vessel is to display three masthead lights, sidelights, a yellow-over-white sternlight, and the light signal RED-WHITE-RED. The dayshape display will be the same as above. Rule 24 applies here. Not-Under-Command Lights A vessel not under command (fig. 9-25) should display the following lights: RED-RED displayed vertically, sidelights, and a sternlight. The sidelights and sternlight are only displayed when making way through the water. The dayshape signal for a vessel not under command is two black balls displayed vertically. Rule 27 applies here. 9-23







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