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Kahlenberg Instruction Sheet 323
INLAND - RULE (C)
WHEN IN SIGHT OF ONE ANOTHER (I) A POWER DRIVEN VESSEL INTENDING TO
OVERTAKE ANOTHER POWER DRIVEN VESSEL SHALL INDICATE HER INTENTION
BY THE FOLLOWING SIGNALS ON HER WHISTLE:
ALT STBD
ALT PORT
DANGER
GENERAL EMERGENCY ALARM CODE:
*Note:
The above is intended as a quick reference guide only and in no way is intended to
be a replacement for the complete Rule 34 as included in the 72' COLREGS
One Short Blast
"I intend to overtake you on your Starboard side"
In Agreement
Two Short Blasts
"I intend to overtake you on your Port side"
In Agreement
Five Short Blasts
"Danger"
Failure to understand intentions or actions, or in doubt
Seven Short Blasts followed by 1 long blast (repeats every 10 seconds)
IMO SOLAS GENERAL EMERGENCY ALARM SIGNAL
Rev. 6/29/2011, Page 7 of 7
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