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Kahlenberg Instruction Sheet 323
INLAND - RULE (A)
WHEN POWER-DRIVEN VESSELS ARE IN SIGHT OF ONE ANOTHER AND MEETING
OR CROSSING AT A DISTANCE WITHIN HALF A MILE OF EACH OTHER, EACH
VESSEL UNDERWAY, WHEN MANEUVERING AS AUTHORIZED OR REQUIRED BY
THESE RULES:
ALT STBD
ALT PORT
ASTERN
DANGER
*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 leave you on my Port side"
In Agreement
Two Short Blasts
"I intend to leave you on my Starboard side"
In Agreement
Three Short Blasts
"I am operating Astern Propulsion"
In Agreement
Five Short Blasts
"Danger"
Doubt Safety of Proposed Maneuver
Rev. 6/29/2011, Page 6 of 7
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