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3 short blasts
3 short blasts
3 short blasts
Three short blasts means that the ship's engine is working in reverse.
3 short blasts
A Fog Horn.
3 short blasts
3
The sound signal that you should hear when a power boat is in the fog is one prolonged blast at intervals of no more than 2 minutes.
A signal sound device
one prolonged blast
None. A vessel underway under normal conditions does not need to make any sound signal.If the vessel ceases to make way it still does not make a sound signal unless special circumstances apply.