Английская Википедия:Isolated danger mark

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Examples of Isolated Danger Marks

An Isolated Danger Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate a hazard to shipping such as a partially submerged rock.Шаблон:Sfn

Файл:Isolated Danger Mark near Hvar Croatia.jpg
Isolated Danger Mark near Hvar, Croatia

It is recognisable by its black and red bands and top-mark of two black balls.Шаблон:Sfn

Its distinctive sequence of flashing white light consists of 2 quick flashes in intervals of either 5 or 10 seconds.Шаблон:Sfn

See also

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Footnotes

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References

Шаблон:Commons category