Raymarine LIGHTHOUSE 4, Operation Instructions Manual

Page: 143 / 504

10.1 SAR (Search and Rescue) patterns
Attempting to search the water for an object can be challenging, due to the
vastness of the ocean and the effects of tide. Additionally, the object you are
searching for is not normally in its last known location.
SAR Patterns are routes that can help you find an object in the water. The
pattern can be modified and can take the effects of the tide into account,
providing a more accurate and consistent route to search. SAR Patterns can
be created on your MFD in the
[Chart app] .
Access search pattern options: [Chart app > Menu > New > Search patterns] .
The available Search Patterns are:
• Sector Search
• Expanding square
• Creeping line
• Parallel Line
Once a search pattern is created it is saved as a Route and can be managed
and navigated in the same manner as any other saved Route. For more
information refer to:
9.2 Routes
When the MFD is configured using the ‘First responder’ boating activity
profile SAR patterns can be received over STEDS messaging. For more
information refer to:
21.12 SAR pattern receipt
10.2 Sector search pattern
The sector search pattern is made up of 9 legs, with the 3rd, 6th and 9th leg
running past the datum. Track spacing will change depending on whether
you are with or against the drift).
Note: As the search pattern takes in to account drift, the resulting search
route may not resemble the pattern shown.
SAR (Search And Rescue) patterns
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