Special Marks

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

Test Summary

Difficulty:
147 Number of times this test has been taken.
87% The average score for this test.

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

Tests

Taking a test can be a great way to build on what you have learnt already and build confidence before taking a formal qualification test. The Special Marks test consists of 5 questions randomly chosen from a selection.

147 Total Tests Taken
87% Average Score
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Terminology

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