Chapter 7: Windvane Control
101
Chapter 7: Windvane Control (Sail Only)
Windvane control allows the autopilot to maintain an apparent wind angle.
There are two methods of supplying wind angle:
1. Using NMEA 0183 output from another manufacturer's instrument
system.
2. Using an Autohelm ST50 wind instrument connected using the
SeaTalk bus.
The autopilot uses wind trim to eliminate the effects of turbulence and
short term wind variations to provide smooth, precise performance under
windvane with minimum power consumption. Wind trim uses the fluxgate
compass as the primary heading reference, and as changes in the
apparent wind angle occur, the compass heading is adjusted to maintain
the original apparent wind angle.
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