The meanings of visual and sound signals are stated below. An arrow pointing up or down ( ¯ ) means that a visual signal is displayed or removed. A dot ( · ) means a sound; five short dashes (– – – – –) mean repetitive sounds; a long dash (—) means a long sound. When a visual signal is displayed over a class flag, fleet flag, event flag or race area flag, the signal applies only to that class, fleet, event or race area.
Postponement Signals
AP Races not started are postponed. The warning signal will be made 1 minute after removal unless at that time the race is postponed again or abandoned.
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AP over H Races not started are postponed. Further signals ashore.
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AP over A Races not started are postponed. No more racing today.
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AP over a Numeral Pennant 1–9
Postponement of 1-9 hours from the scheduled starting time.
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Abandonment Signals

N All races in progress are abandoned. Return to the starting area. The warning signal will be made 1 minute after removal unless at that time the race is abandoned again or postponed.
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N Over H All races in progress are abandoned. Further signals ashore.
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N over A All races in progress are abandoned. No more racing today.
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Preparatory Signals

P Preparatory signal.
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I Rule 30.1 is in effect.
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Z Rule 30.2 is in effect.
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U Rule 30.3 is in effect.
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Black flag. Rule 30.4 is in effect.
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Recall Signals
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Shorten Course
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X Individual recall.
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First Substitute General recall. The warning signal will be made 1 minute after removal.
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S The course has been shortened. Rule 32.2 is in effect.
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Changing the Next Leg

Other Signals
