Rules of the Road · Maneuvering & Warning Signals
What does the signal of two short blasts on a whistle indicate under Rule 34 when vessels are in sight of each other?
- AI am altering my course to starboard
- BI am altering my course to port✓ Correct
- CMy engines are going astern
- DI am in doubt of your intentions
Explanation
Rule 34(a)(ii) assigns two short blasts to 'I am altering my course to port.' One short blast = starboard; three short blasts = astern propulsion; five or more short blasts = doubt/danger signal.
Authority: 72 COLREGS Rule 34(a)(ii)
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