9 Bearings


The bearing of the mark or vessel concerned, is the bearing in the 360 degree notation from north (true north unless otherwise stated), except in the case of relative bearings. Bearings may be either FROM the mark or FROM the vessel.


Examples: “The pilot boat is bearing 215° from you.”


“Your bearing is 127° from the signal station.”


Note: Vessels reporting their position should always quote their bearing FROM the mark, as described in paragraph 7.


Relative bearings


Relative bearings can be expressed in degrees relative to the vessel’s head or bow. More frequently this is in relation to the port or starboard bow.


Example: “The buoy is 030° on your port bow.” Relative D/F bearings are more commonly expressed in the 360 degree notation. 


10 Distances


Preferably to be expressed in nautical miles or cables (tenths of a mile) otherwise in kilometres or metres, the unit always to be stated.


11 Speed To be expressed in knots:


(a) without further notation meaning speed through the water; or


(b) “ground speed” meaning speed over the ground.


12 Numbers


Numbers are to be spoken: “One-five-zero” for 150.


“Two point five” for 2.5.


13 Geographical names


Place names used should be those on the chart or Sailing Directions in use. Should these not be understood, latitude and longitude should be given.


14 Time


Times should be expressed in the 24 hour notation indicating whether UTC, zone time or local shore time is being used.


 


Note: In cases not covered by the above phraseology normal radiotelephone practice will prevail.

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