Chapter 2: Autopilot Operation 8-2-21
ST290 Instrument System Owner’s Handbook
Dodges in Wind Vane mode
When the autopilot is in Wind Vane mode you still have full control from
the keypad.
Initiating a dodge maneuver
InWind Vane mode,you can make a dodgemaneuver by usingthecourse
change buttons (
-1, +1, -10 or +10) to select the desired course change.
The autopilot will adjust both the locked heading and locked wind angle.
Completing a dodge maneuver
After you have avoided the hazard, reverse the previous course change.
Wind Shift warning
If the autopilot detects a sustained wind shift of more than 15° a
WINDSHIFT alarm will occur (Figure 2-18 ):
• To cancel the alarm, retaintheexisting wind angle and accept the new
heading, press any key on the ST290 Graphic Display.
• To cancel the alarm and keep to the existing heading, either:
• Adjustthelocked windangleusing the
-1,+1, -10 and +10 buttons,
or
• Press
STANDBY to return to hand steering. Steer onto the required
heading and press
STANDBY and AUTO simultaneously to return
to Wind Vane mode with the new wind angle.
.
Figure 2-18: Windshift Alarm
D6052-1
Message will "pop-up"
in front of current view
Change in wind direction (>15º)
OLD
WIND
NEW
WIND
81183_2 S8.book Page 21 Tuesday, May 6, 2003 9:08 AM
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