Raymarine autopilot control unit - Manual (Page 28)

Chapter 2: Basic Operation 11
immediately assume the new automatic heading, and will only settle
onto course when the automatic trim has been fully established.
To eliminate this problem, the following procedure can be adopted for
large course changes:
1. Note the required new heading.
2. Select standby and steer manually.
3. Bring the vessel onto the new heading.
4. Select auto and let the vessel settle onto course.
5. Bring the vessel to the final course with 1° increments.
Sailboats in Gusty Conditions
In gusty conditions, the course may tend to wander slightly,
particularly if the sails are badly balanced. A significant improvement
in course keeping can always be obtained by improving sail balance.
Bear in mind the following important points:
• Do not allow the yacht to heel over excessively.
• Ease the mainsheet traveller to leeward to reduce heeling and
weather helm.
• If necessary, reef the mainsail a little early.
It is also advisable, whenever possible, to avoid sailing with the wind
dead astern in very strong winds and large seas.
Ideally, the wind should be brought at least 30° away from a dead run
and, in severe conditions, it may be advisable to remove the mainsail
altogether and sail under headsail only.
Provided these simple precautions are taken, the autopilot will be able
to maintain competent control in gale force conditions.
2.5 Using Manual Mode
If your system is fitted with a joystick, the ST7000 Plus will enter
Manual mode when the joystick is used.
The ST7000 Plus will return to the previous operating mode when the
joystick button is released, or to Standby mode if you press the
standby key on the ST7000 Plus.
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