Raymarine St290 - Autotack Angle; Relative (Mirror) Tacks

Chapter 5: Adjusting Autopilot Settings 8-5-17
ST290 Instrument System Owner’s Handbook
To adjust the AutoRelease setting:
AutoTack angle
Note: The autotack angle function is active only if the vessel type is set as
SAIL BOAT.
The AutoTack angle is the angle through which the boat will turn when
you select an automatic tack.
1. Use the button to scroll to the AUTO
RELEASE page.
2. Use the or button to select ON or
OFF.
3. To move to the next setting press the
button or to leave the current cali-
bration chapter and save all setting.
changes, press the button.
Relative (Mirror) tacks
You can also set the AUTOTACK
ANGLEfunctiontoperformrelative
tacks.
When a relative tack is executed,
the boat turns so that the angle to
the wind is mirrored.
If you want to use relative tacking,
set the AUTOTACK ANGLE parame-
ter to RELATIVE.
Note: When using AutoTack in
wind vane mode, your system will
automatically trim to the mirrored
angle having turned through the
set angle first.
Figure 5-6: Relative Tacks
D5995-1
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WIND
A relative tack will turn the boat
to mirror the present wind angle
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81183_2 S8 Chap 5.fm Page 17 Wednesday, May 7, 2003 2:39 PM