Raymarine p70 User Reference page 38

Using wind vane mode
You can select Wind vane mode from either STANDBY or AUTO
mode:
1. Steady the vessel onto the required wind angle.
2. Select Wind vane mode:
i. Wind vane mode can be selected by pressing the AUTO and
STANDBY buttons together, or
ii. selecting Wind vane mode from the modes menu: Menu
> Mode > Wind vane.
This will enable Wind vane mode and lock the current wind angle.
The display shows the locked heading (e.g. 128°) and the wind
angle (e.g. WIND 145P indicates a wind angle of 145° to port).
3. The SmartPilot will then adjust the vessel's heading to maintain
the locked wind angle.
Adjusting the locked wind angle
1. You can adjust the locked wind angle by using the -1, +1, -10 and
+10 buttons, or the ROTARY controller to change course. For
example, to bear away by 10° when the boat is on a starboard
tack:
i. press -10 to turn the boat 10° to port – the locked wind angle
and locked heading will both change by 10°.
ii. the autopilot will then adjust the locked heading as required
to maintain the new wind angle.
Note: Because turning the vessel affects the relationship
between the true and apparent wind angles, you should only use
this method to make minor adjustments to the wind angle. For
major changes, return to STANDBY mode, steer onto the new
heading, then reselect Wind Vane mode. Refer to the p70 pilot
controller installation instruction for the procedure for changing
the wind reference between True and Apparent.
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Leaving wind vane mode
To leave wind vane mode:
1. Press AUTO to return to Auto mode (autopilot control), or.
2. Press STANDBY to return to Standby mode (manual steering).
Wind trim
In Wind Vane mode the SmartPilot uses WindTrim to eliminate the
effects of turbulence and short term wind variations. This provides
smooth and precise performance with minimal power consumption.
You can adjust the wind response (WindTrim) level in Sail boat
settings menu Main menu > Set up > Auto pilot calibration >
Sailboat settings to control how quickly the SmartPilot responds to
changes in the wind direction. Higher wind trim settings will result in
a pilot that is more responsive to wind changes.
Wind shift warning
If the autopilot detects a wind shift of more than 15° it will sound the
wind shift warning and display the WIND SHIFT message.
Responding to the wind shift warning
1. To cancel the warning, and retain the existing wind angle and
new heading, press CANCEL.
2. Alternatively, to cancel the warning and return to the previous
heading:
i. adjust the locked wind angle using the -1, +1, -10 and +10
buttons.
ii. press STANDBY to return to hand steering, steer onto the
required heading, and press CANCEL to return to Wind Vane
mode with the new wind angle.
p70 / p70r Pilot controller User reference