Rule 34 – Manoeuvring and warning signals

February 9, 2008   

Print this out and tape it to your fog horn canister.  

When in sight of one another, a power-driven vessel underway, when manoeuvring sounds the following (can be supplemented with all arond white light with visible range of 5 miles 1 second flashes with 1 second between and 2 seconds between signals)

– one short blast to mean “I am altering my course to starboard”.
– two short blasts to mean “I am altering my course to port”.
– three short blasts to mean “I am operating astern propulsion”.
 

In sight of one another in a narrow channel or fairway when intending to overtake

– two prolonged blasts followed by one short blast to mean “I intend to overtake you on your starboard side”.
– two prolonged blasts followed by two short blasts to mean “I intend to overtake you on your port side”.

To indicate agreement of being overtaken

one prolonged, one short, one prolonged and one short blast, in that order.

five short and rapid blasts on the whistle or light signal – fail to understand your intentions and are in doubt whether you are taking sufficient action to avoid collision,

one prolonged blast vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured and response if you hear it and don’t see the vessel

Comments are closed.