Special Marks - Sailing Buoys

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Special Marks

Theory

Indicate special areas or features such as military exercise zones, recreation zones, traffic separators etc

Not primarily used to assist in navigation, special buoys indicate special areas or features such as military exercise zones, recreation zones, traffic separators etc. They're the same in both IALA buoyage systems and are characterised by their yellow colour. Their lights, when they have them, are yellow and can have any rhythm apart from those used by isolated danger, cardinal, safe water, lateral and emergency wreck buoys.



Colour
Yellow
Shapes
Conical, Spar, Cylindrical, Pillar, Spherical
Top Marks
Yellow Cross on it's side
Lights
If a light is fitted the colour will be Yellow. Any rhythm apart from those used by isolated danger, cardinal, safe water, lateral and emergency wreck buoys
Chart Symbol
Special Mark - Chart Symbol