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STARBOARD  LOOKOUT:  Stationed  on  the
starboard  bridge  wing.  Sector  extends  from  the
forward  lookout's  boundary  to  the  starboard  beam
(030° - 090°).
AFT LOOKOUT: Stationed as far aft and as close
to the waterline as possible. Sector extends from the
starboard   beam   clockwise   to   the   port   beam
(090 ° - 270°).
PORT LOOKOUT: Stationed on the port bridge
wing. Sector extends from the port bow to the forward
lookout's boundary (270° - 330°).
During restricted-visibility conditions, conduct a
moderately fast search without binoculars, but have
them within reach in case the fog suddenly lifts.
SOUND  SIGNALS
During restricted visibility, all ships continually
sound fog signals in accordance with Navigation Rules,
International  -  Inland.  (See  figure  18.)  Most  contacts
will have to be reported by hearing prior to the actual
sighting.  Sounds  that  might  be  heard  and  must  be
reported are bell and whistle buoys, small craft motors,
fog  signals,  wash  of  water  on  another  ship's  hull,  and
any other unusual sounds. You must constantly be alert
and  concentrate  on  the  job  at  hand  to  hear  these
sounds.
REPORTS
Report sound signals using the following format.
1.  WHAT  IS  HEARD:  One  prolonged  blast,  a
rapid ringing bell, two short whistles, and so forth.
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