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3.2 Sail To Wind
The TP20 and TP30 are able to sail to the apparent
wind angle rather than a compass course, using
wind data via the NMEA interface. The use of a
Simrad IS15 wind instrument is recommended.
If no wind information is present, the Tillerpilot
will not enter Sail To Wind Mode.
To select Sail To Wind Mode, the unit must be in
Autopilot Mode. To enter Sail To Wind Mode, press
and hold both the Port and Starboard keys togeth-
er until a double beep is heard (Fig 3.3). Both the
Port and Starboard LEDs will flash simultaneously
while the pilot is in Sail To Wind Mode.
To switch back to Compass Mode, simply press and
hold the Port and Starboard key together again
until a double beep is heard.
While in Sail To Wind Mode, engaging the autopilot
will lock the Tillerpilot onto the current apparent
wind angle being sailed. Any course adjustments
made will be relative to the apparent wind angle,
rather than the compass heading as when in
Compass Mode. Please note that some of the stan-
dard key stroke functions may have a different
effect in Sail To Wind Mode than when in Compass
or Nav Mode. Refer to section 2.5.3 for more
details.
Note that Nav Mode cannot be selected while in Sail
To Wind Mode - to initiate, first return to Compass
Mode.
Fig 3.3 - Selecting Sail To Wind Mode
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