Simrad AP25 - Manual (Page 45)

Operation
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2.20 Tacking and gybing in Wind mode
In WIND mode there is a tacking and gybing aid function.
Tacking in WIND mode as compared to AUTO mode can be
performed when sailing with apparent or true wind as the
reference, and with a true wind angle of less than 90 degrees.
The tacking operation will immediately mirror the set wind angle
to the opposite side. A tacking-message will flash on the display
for 5 seconds. Any new command given when the message is
flashing, will interrupt the tack operation. The rate of turn during
the tack will be given by the ‘Tack time’ parameter set in the
Installation/Dockside menu (page 107).
A quick press on the TURN/DODGE button will activate the
tack function and the boat will start turning to the same wind
angle on the other side.