ComNav 1101 Autopilot
Note that for a U Turn, the Autopilot will display the reciprocal
course, that is, your last course plus 180'. For E Turns and C
Turns, the course will change as the Autopilot executes the
preset series of maneuvers.
10. If you have selected a U Turn or an E Turn, the Autopilot will
complete the Special Turn once the vessel is on a reciprocal
course. If you have selected a C Turn, you vessel will continue
to circle until you exit the Special Turn function.
11. To exit the Special Turn function, either turn the ADJUSTMENT
KNOB or change modes.
Adjusting for Special Conditions
One of the advantages of the ComNav 1101 is that it gives you the
ability to change the Steering Parameters easily while underway.
Now that you have setup and trialed your autopilot in AUTOPILOT
mode, it will give you consistent reliable steering performance but
you should be aware of some special conditions under which you
may wish to vary the Steering Parameters.
Wave Action
Should you encounter heavy weather, wave action may cause
considerable swinging of your vessel’s bow. If the bow travels
through an arc wider than your yaw setting, you will observe the
Autopilot trying to correct for waves. This will do little to improve
steering performance but will add to the wear and tear on your
steering system. If you expect to be in heavy weather for a period of
time, increase the yaw setting. You should turn the yaw setting
back down once the weather calms down.
Very Slow Speed
At very slow speeds the vessel’s rudder effect is greatly reduced
making it harder to execute turns. If you plan to make a passage
at a speed which is below the speed of your “SLOW” settings,
increase your rudder setting. This will provide a more exaggerated
rudder movement for each course change, thereby offsetting the
reduction in rudder effect due to slow speed. If necessary, you can
also increase the counter rudder setting to improve slow speed
performance.
6 - 17 BASIC OPERATIONS
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