Chapter 2: Following a route
23
Using AutoTack in Wind Vane mode
Note:
Before you use the AutoTack function in Wind Vane mode, make sure the wind vane has
been centered accurately.
The SPX-5 Tiller system has an automatic tack facility (AutoTack) that turns the boat
to mirror the locked wind angle from the previous tack.
To carry out an AutoTack maneuver:
1. Simultaneously press the
-1
and
-10
buttons (to tack to port) or the
+1
and
+10
buttons (to tack to starboard), then release. Allow the AutoTack maneuver to
complete.
2. If you need to trim the helm to the required wind angle, use
-1, -10, +1 or +10
as
appropriate.
No boat speed information
If boat speed data is not available, the Cruise Speed value is used during an AutoTack
maneuver. This may result in reduced AutoTack performance.
Preventing gybes with AutoTack
Note:
For the gybe inhibit feature to work, the SPX-5 Wheel system needs suitable wind infor-
mation.
A gybe inhibit feature prevents an AutoTack away from the wind to prevent gybing
during an AutoTack.
Gybe inhibit is switched on as a default but can be disabled in User Calibration if
required (see
page 13
).
•
With gybe inhibit on:
•
You will be able to perform an AutoTack into the wind.
•
The autopilot will prevent the boat from performing an AutoTack away from the
wind, to prevent accidental gybes.
•
With gybe inhibit off, you can perform an AutoTack into or away from the wind.
AutoTack - Starboard
D9320-1
+
+
Wind
Wind
AutoTack - Port
AutoTack
angle
AutoTack
AutoTack
Automatic
Helm
trim
Automatic
Helm
trim
AutoTack
angle
