Chapter 2: Advanced operation 23
• or press
standby
to return to man ual control.
Note:
If waypo ints are pro vided using an NMEA conn ection the controller will display NO
DATA when you reach the final waypoint.
2.2 Using Wind V ane mode
Note:
You can only select Wind Vane mode if the SmartPilot is receiving suitable SeaTalk
or NMEA wind directio n information.
What is Wind Vane mode?
When th e SmartPilot is in Wi nd Vane mo de it uses the fluxgate compass as the
primary heading reference. As changes in the true or apparent wind angle occur ,
it adju sts the locked heading to main tain the original win d angle.
Wind information
T o use Win d Vane mod e, the SmartPi lot must receive wind informati on from one
of the following sources:
• SeaT alk wind instrument connected to the autopilot via SeaT alk
• NMEA wind instrument
• Raymari ne pushpit wind van e connected via a SeaT alk interface
T rue and apparent wind
SmartPi lots can maintain a co urse relative to either an apparent or tru e wind
angl e in Wind Vane mode
T he default setting is apparent wind. If required, you can change this to true wind
in User Calibra tion (see
page 31
).
WindT rim
In Win d Vane mod e the SmartPilot uses Wind T rim to eliminate the effects of
turbu lence and short term wind variations. This provides smooth and precise
performa nce with minimal power co nsumption. Y ou can adju st the wind
response (WindT rim) level in User Calibration (see
page 31
) to control how quickly
the SmartP ilot responds to chan ges in the wind direction . Higher wind trim
settings wil l result in a pilot that is more responsive to wind chan ges.
81283_1.book Page 23 Monday, October 2, 2006 2:03 PM
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