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  2. Safe water mark - Wikipedia

    en.wikipedia.org/wiki/Safe_water_mark

    They are also known as fairway buoys and clear water buoys. They are recognisable by their red-and-white vertical stripes and commonly bear a top sign in shape of a red ball. They either flash Morse code "A" (di-dah), or one long flash, occulting (more light than dark) or isophase (equal light and dark) every 10 seconds (L Fl 10s).

  3. Category:Buoy markers - Wikipedia

    en.wikipedia.org/wiki/Category:Buoy_markers

    Download as PDF; Printable version; In other projects ... Pages in category "Buoy markers" ... out of 3 total.

  4. Cardinal mark - Wikipedia

    en.wikipedia.org/wiki/Cardinal_mark

    A cardinal mark is a sea mark (a buoy or other floating or fixed structure) commonly used in maritime pilotage to indicate the position of a hazard and the direction of safe water. Cardinal marks indicate the direction of safety as a cardinal ( compass ) direction ( north , east , south or west ) relative to the mark.

  5. ISO 7010 - Wikipedia

    en.wikipedia.org/wiki/ISO_7010

    ISO 7010 is an International Organization for Standardization technical standard for graphical hazard symbols on hazard and safety signs, including those indicating emergency exits.

  6. Emergency wreck buoy - Wikipedia

    en.wikipedia.org/wiki/Emergency_Wreck_Buoy

    The buoy is expected to be deployed for the first 24-72 hours after the wreck occurs. After that time more permanent buoyage (such as isolated danger marks or cardinal marks) should be deployed and charts updated. [1] The buoy is designed to "provide a clear and unambiguous" [1] mark of a new and uncharted danger. The buoy is painted with 4, 6 ...

  7. Navigational aid - Wikipedia

    en.wikipedia.org/wiki/Navigational_aid

    Where a channel divides the mark at the junction is called a "preferred channel mark" or "junction buoy". The mark has the colour and shapes corresponding to the preferred channel with a band of the other colour to indicate it is the other hand mark for the subsidiary channel. [1]

  8. Lateral mark - Wikipedia

    en.wikipedia.org/wiki/Lateral_mark

    A lateral buoy, lateral post or lateral mark, as defined by the International Association of Marine Aids to Navigation and Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate the edge of a channel. Each mark indicates the edge of the safe water channel in terms of port (left-hand) or starboard (right-hand).

  9. Marker buoy - Wikipedia

    en.wikipedia.org/wiki/Marker_buoy

    Pages for logged out editors learn more. ... Download as PDF; Printable version; In other projects ... move to sidebar hide. Marker buoy may refer to: Surface marker ...