Raymarine LIGHTHOUSE 4 Operation Instructions Manual page 147

Multifunction display operating system
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ii. The selected variable will then be calculated as a result of changes
made to the other two variables.
Variable
Track spacing / Radius
Search Speed
Leg Time
1.
[CSP Shortcut]
2. [Set / Drift Shortcut]
3. [Output]
5. Set the number of legs
i. Select the number of legs for your expanding square search pattern.
6. Create search route
[After all the above steps have been completed you can create your
SAR pattern.]
i. To create a search pattern, select [Create search route] in the bottom
right of the screen.
ii. The creation page will display your SAR pattern data and its location in
the Chart app.
SAR (Search And Rescue) patterns
Maximum Value
5 nm / 5 sm / 5 Km
40 Kts / 46 Mph / 74 Kph
59m 59s
iii. Select [Follow Route] to overlay the pattern on the Chart app and
automatically follow the route.
iv. Alternatively, select [OK] to overlay the pattern on the Chart app
without following it.
147

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