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Chapter 2: Using the Tiller Pilot 23
2 Using the Tiller Pilot
2.5 Using WindTrim mode
Note: You can only use WindTrim mode if the tiller pilot is connected
to a suitable wind sensor/instrument providing wind direction data.
To use WindTrim mode, the tiller pilot must receive wind information
from one of the following sources:
• SeaTalk wind instrument
• NMEA wind instrument
• Raymarine pushpit wind vane (part number Z159) connected via
supplied SeaTalk interface
In WindTrim mode the tiller pilot maintains a course relative to an
apparent wind angle. The pilot uses WindTrim to eliminate the effects
of turbulence and short term wind variations. This provides smooth
precise performance with minimum power consumption.
WindTrim mode uses the fluxgate compass as the primary heading
reference. When changes in the apparent wind angle occur, the tiller
pilot adjusts the locked compass heading to maintain the original
apparent wind angle.
In WindTrim mode, the tiller pilot ignores short-term changes in wind
direction, yet still tracks real wind shifts as subtle as 1°.
Selecting WindTrim mode
From Standby mode or Auto mode, press standby and auto
together to select WindTrim. The tiller pilot will then maintain the
current apparent wind angle.
Note: The tiller pilot beeps once every 30 seconds in WindTrim mode.
D5558-1
81130_3.book Page 23 Wednesday, July 25, 2001 11:57 AM