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- Master (Oceans or Near Coastal (Uninspected Fishing Industry Vessel)) »
- Q180 - Deck General
123. A U.S. Coast Guard icebreaker, while escorting ships in ice, has sounded four short and one long blasts on the whistle. What does this indicate?
A U.S. Coast Guard icebreaker signaling four short and one long blasts indicates the icebreaker is icebound, and all following vessels must stop.
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