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A hull outline with a dotted danger line around it.
Also known as: Wreck danger symbol, Foul wreck symbol
On a nautical chart a wreck considered dangerous to surface navigation is drawn with a dotted danger line enclosing it, marking water a vessel should not enter.
Marks a wreck whose depth makes it a danger to surface navigation, the dotted line enclosing the water affected.
Contexts: Navigation
Is distinguished from a non-dangerous wreck by that enclosing line, which is the chart's way of separating a hazard from a feature.
Contexts: Navigation
A hull-shaped outline or a cross of masts with a dotted line drawn around it enclosing the affected water.