Raymarine LIGHTHOUSE 4, Operation Instructions Manual

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Important:
Pinging the Race Start Line ends will use your GPS location (from an
internal or external GPS receiver). When pinging the end points, it is
important to compensate for the distance between your vessel’s bow and
the GPS location.
To increase the accuracy of start line placement:
1. Approach an end point from the same direction you will be traveling
when starting the race.
2. Align your vessel so it is perpendicular to the end point.
3. When the bow of your vessel reaches the end point, ping the location.
4. Repeat for the alternate end, ensuring your vessel remains perpendicular
to the line.
Editing and clearing the Race Start Line
The Race Start Line can be edited and deleted.
To edit the Race Start Line:
1. Select the line or end points on the chart app.
2. Select
[Edit line] .
From here you can choose to swap the positions of the Port and
Starboard end points, re-ping them to your vessel’s current position, or
clear the start line.
3. Select [Done] to save changes.
Starting the Race Timer
A Race Timer is available to count down until race start.
To start the Race Timer:
1. Open the menu.
2. Select
[Race Timer] .
3. Select [Timer duration] to set the countdown time (default is 5 minutes).
4. Select [Start] to begin the countdown.
Important: The Race Timer can be set from 1 minute to 30 minutes.
5. You can change the countdown time as well as stop and reset the timer
by reopening the Race Timer options menu.
Note:
The Race Timer can also be operated from the Dashboard app Race Start
Page.
Race laylines
When the Race Start Line, Race Timer and Laylines are active, laylines will
protrude from the race start line’s port and starboard ends to help guide your
vessel on an optimum course to the start line. A Favoured End Marker will
also appear on the end point that provides a more competitive start. For
more information on laylines refer to
15.3 Laylines
The start line will appear differently depending on whether it is an upwind or
downwind start:
• Upwind starts will show red and green laylines as well as a Favoured End
Marker on the end point closer to the True Wind Direction (TWD).
• Downwind starts will show orange laylines as well as a Favoured End
Marker on the end point farther from the True Wind Direction (TWD).
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