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Operating in WIND
Refer to Figure 2-2 with references [ ] the associated displays
and the criteria (bullets) below.
•
•
•
•
RACING
If 'Wind setup' is set to 'RACING' in the Installation/Dockside
menu, a more advanced steering is possible:
• Optimizing VMG to wind may be enabled when beating and
• Layline steering may be disabled when heading directly
See chapter 2.22 User Set-up Menu on how to access these
parameters.
20221560E
The set wind angle should be larger than the 'Minimum
wind angle' set in the Installation/Dockside menu and
smaller than 170° Apparent.
Information about when it is time to head directly towards
the waypoint, Distance To Turn (DTT) and Estimated Time
to Turn (ETT) are displayed. These calculations are based on
the assumption that the set wind angle will be the same or
larger after a tack or gybe towards the waypoint [3][7].
A turn prompt will appear when it is time to head towards
the waypoint and the autopilot will calculate and display the
change of heading by comparing the current heading and the
heading towards the waypoint (CHG) [5].
When heading towards the waypoint, the autopilot utilizes
either the XTE from the GPS/Chartplotter to maintain track
or a layline calculated by the autopilot. The calculated
layline applies when the Cross Track Error (XTE) from the
external navigator is larger than 0.15 nm [8].
it is not possible to head directly towards the waypoint [2][4].
towards the waypoint. Instead you can optimize the
Waypoint Closure Velocity (WCV) by trimming the sails and
the set wind angle. A turn prompt will then be displayed if
the difference between Course Over Ground (COG) and
Bearing Position Waypoint (BPW) exceeds 30° when
heading towards a waypoint [5].
mode
NAV
Operation
37
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