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Chapter 5: Commissioning the Autopilot
first item in your initial seatrial. The autopilot will then automatically
correct the fluxgate compass.
CAUTION:
If you fail to complete the deviation correction, your autopilot's
performance will be impaired on some compass headings.
The deviation correction procedure (swinging the compass) involves
turning your boat in slow circles so the autopilot can determine the
deviation and calculate any correction required. You must carry out
this procedure in calm conditions and preferably on flat water.
Automatic compass deviation correction
1. With the pilot in Standby mode, press and hold STBY for
2. You will then see the current autopilot heading and a dEv ---
3. Start turning the boat in slow circles (with the boat's speed below
4. Continue slowly turning the display shows the amount of
4 seconds.
message.
2 knots). You will need to complete up to 2 circles, taking at least
3 minutes to complete each 360°.
deviation the autopilot has corrected.
47
D920-1a
Current compass heading
Deviation present
D920-2a
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