Raymarine Autohelm ST7000 Operation Manual page 12

Wind Change Alarm
Wind Trim uses the fluxgate compass as the primary
heading reference and automatically adjusts the
compass heading to maintain the original apparent wind
angle. If changes in apparent wind angle adjust the
original automatic heading by more than 15 deg. the
wind change alarm will sound.
- The alarm is silenced by pushing both red keys
together briefly.
Display of Wind Angle
If the wind angle information is supplied using the NMEA
0183 input or SeaTalk bus, the apparent wind angle and
tack sense (P & S) is added to the display menu and
accessed via the Display button.
Apparent Wind Angle
• Adjust Apparent Wind Angle
10
Using Wind Trim
It is important to understand that "Wind Trim" prevents
over-reaction to gusts or sudden wind shifts. One
minute is required to change the heading in response to
a permanent change in apparent wind angle. Do not
attempt to override the automatic sequence with the
course change buttons.
In gusty conditions sail a few degrees off the wind and
pay frequent attention to sail trim and helm balance
using the rudder angle indication.
Performance will normally be improved by reefing
headsail and mainsail a liftle early rather than too late.
Use the +1 or +10 degree buttons to
change heading and hence adjust
the apparent wind