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JRB Operating Procedures Outline
Figure 17: Square search pattern
If the actual location is now known and you are working on an assumed high probability area then a
parallel track search or creeping line search could apply best.
A combination of patterns to cover an area quickly and efficiently could be used. This depends on the
number of available SRUs.
Realise that when working in inshore conditions there are difficulties associated with formal patterns
but the principles can be adapted to cover an area efficiently and to establish a high probability area
when visual contact is lost.
Other factors to consider are:
•
The distance or spacing between each track or leg.
•
The length of each track.
•
The experience of the crew/crew fatigue.
If you are searching for a person in the water then track spacing needs to be smaller as compared to a
search for a vessel.
Track length is effected by the size of the probability area which is determined by all the available
information.
If an object or person is sighted by a crew member, until it is seen by the driver, a good method of
holding visual contact is for the person to direct the driver to it by what is called the clock position and
estimated distance. Take 12 o’clock as being straight ahead. If something is seen directly to the right
then it would be called as 3.00 o’clock, 200 metres. As the craft comes around towards it until the
driver sees it, the next call could be 12 o’clock, 200 metres. If you see something, keep looking at it
and try not to loose sight.
Don’t be afraid of making a mistake because you’re not sure if you saw something or not. If you think
you have seen something, take a look at it. It may be the real thing and save somebody’s life.
CONCLUSION
Much has been written and standardised about searches and search patterns. Not all applies to SLSA
work, especially inshore. Remember the basics of the target changing location because of wind, tide
etc and to search a wider area than where the target is last seen. The patterns shown here have been
used to cover an area in a minimum of time for maximum efficiency.
In our role, time is often important and could mean the difference between life and death.
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