Raymarine ST1000 Plus Specifications download pdf (Page 15)

Chapter 2: Using the Tiller Pilot 13

To switch back to AutoSeastate, press -1 and +1 again.

Note:

The autopilot reverts to Automatic Deadband Control each time you select Standby

mode.

Operating hints – trim changes

CAUTION:

Only make major course changes when steering MANUALLY. This

ensures that the boat will safely clear any obstructions or other

boats, and you can take into account the changed wind and sea

conditions on the new heading before engaging the autopilot.

Large course changes which change the apparent wind direction can produce

large trim changes. When a sudden trim change occurs (for example due to

weather helm or sail imbalance) there will be a delay of up to one minute before

the automatic trim applies rudder to restore the locked heading.

In these situations, the autopilot will not immediately assume the new automatic

heading, and will only settle onto course when the automatic trim has been fully

established. To minimize this problem, use the following procedure to make

major course changes:

1. Note the required new heading.

2. Press

standby, remove the pushrod from the tiller pin, and steer manually.

3. Bring boat onto the new heading and fit the pushrod back onto the tiller pin.

4. Press

auto and let the boat settle on course.

5. Bring your boat onto the final course in 1° steps using

-1 or +1.

Gusting conditions

In gusting conditions, the course may tend to wander slightly, particularly if the

sails are badly balanced. By improving sail balance, you can improve course

keeping.

If you take the following precautions, the autopilot will be able to maintain

competent control even in gale force conditions:

• Do not allow the boat 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 when there are very strong winds and large seas.

• Ideally, the wind should be at least 30° away from a dead run.

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Raymarine ST1000 Plus Specifications Page 15