Raymarine LIGHTHOUSE 4, Operation Instructions Manual

Page: 149 / 504

1. Creeping line search pattern
2. Parallel line search pattern
Creating a Creeping line / Parallel line search pattern
To create a Creeping line / Parallel line search pattern follow the steps below:
1. Select either [Creeping line] or [Parallel line] from the [Search Pattern]
options: [Chart app > Menu > Navigate > Search patterns]
2. Set Commence Search Point (CSP)
i. Manually input the [CSP] coordinates.
ii. Alternatively, set the [CSP] as your vessel’s current location by
pressing the (1) [CSP Shortcut] button.
3. Set Search Speed, and Track Spacing
i. Select and edit each variable.
4. Define Search Rectangle (Define by axes)
i. Define the rectangle’s dimensions by using the [Major axis] and [Minor
axis] boxes.
ii. Set the [Creep / Parallel direction] manually or set it as your Vessel’s
heading by using the (2) [Shortcut] button.
iii. Set the 1st turn direction by selecting [Port] or [Starboard] .
Variable Maximum Value
Track spacing / Radius 5 nm / 5 sm / 5 Km
Search Speed 40 Kts / 46 Mph / 74 Kph
Major / Minor Axis 20 nm / 23 sm / 37 Km
SAR (Search And Rescue) patterns
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