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Indicates navigable water all around it. |
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May be used to mark centerline of a channel. |
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May be used for a mid channel buoy. |
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May be used as a landfall buoy. |
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May indicate the best point of passage under a fixed bridge. |
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Red spherical topmark is used, if the buoy is not spherical. |
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Fitted whenever practicable. |
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They will always be red and white vertical stripes. |
Safe water buoys are either spherical, pillar or spar buoys, with a red ball as a topmark.
White lights are used in any of the following rhythm:
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Iso. Isophase or equal period of light and darkness. |
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Oc. Occulting or duration of light is more than duration of darkness. |
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LFl.10s. A long flash (at least 2 sec) every 10 seconds. |
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MoA. Flashes the Morse code for the letter A, one short then a long flash. |
