Simrad Autopilot AP26 - Manual (Page 43)

Installation
20221586B
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‘WIND Apparent’ is selected when you only want to steer to
apparent wind. Apparent wind steering is preferred when you
want to achieve maximum boat speed. The autopilot will try to
maintain a constant apparent wind angle to get maximum thrust
from a given trim of the sails.
‘WIND True’ is selected when you only want to steer to true
wind. When sailing in closed waters, the apparent wind angle
may change temporarily due to wind gusts. It may then be
preferred to sail to the true wind.
VMG Optimizing
The VMG (to wind) parameter can only be enabled
or disabled when ‘Wind setup’ is set to ‘RACING’. It
is disabled in the ‘NORMAL’ sub-mode.
When enabled, the VMG optimizing will be active for 5 – 10
minutes after a new wind angle has been set. It will only be
activated when beating.
‘VMG’ will be displayed in the lower left corner when the VMG
optimizing feature is active.
Range: Enabled/Disabled
Default: Disabled
Layline Steering
‘Layline steering’ can only be enabled or disabled
when ‘Wind setup’ is set to ‘RACING’. It is enabled
in the ‘NORMAL’ sub-mode.
Layline steering is useful when navigating. It will use the Cross
Track Error (XTE) from the navigator to keep the boat on the
track line. If the XTE from the navigator exceeds 0.15 nm, the
autopilot will calculate its own layline towards the waypoint and
follow that. Layline steering is not active when turning, tacking
or gybing.
‘XTE’ will be displayed in the lower left corner when layline
steering is active.
Range: Enabled/Disabled
Default: Enabled