56
Wheel & Tiller Autopilots: Owner’s Handbook
5
Install
ing
the
Compass - recommended location for non-steel hulls
Finding the most suitable location
To identify the best compass location on your boat, start at the pitch
and roll center then move the compass up and/or aft until you find a
location with minimal magnetic disturbance.
Note: To check if the intended mounting location is free from
magnetic influence, tape a handheld compass to the chosen location,
then turn the boat through 360°. The readings on the handheld
compass and your boat’s main steering compass (if accurately
aligned) should not differ by more than10° at any heading.
Steel-hulled boats
On steel-hulled boats you must mount the compass at least 1.2 m (4 ft)
above the main deck or wheelhouse. Otherwise the compass will not
work correctly because the hull will prevent it from sensing the
Earth’s magnetic field. The following illustration shows
recommended mounting positions for steel-hulled boats.
Note: The higher above the waterline you mount the compass, the
more the boat’s pitch and roll will affect compass performance.
0.3L to 0.5L
L
D5401-1
Summary of Contents for autopilot ST4000+
Page 2: ...ST4000 Wheel Tiller Autopilots Owner s Handbook Document number 81131 6 Date August 2001 ...
Page 5: ...iv ST4000 Wheel Tiller Autopilots Owner s Handbook ...
Page 13: ...xii ST4000 Wheel Tiller Autopilots Owner s Handbook ...
Page 14: ...Part 1 Using the ST4000 Part 1 Using the ST4000 ...
Page 15: ...Part 1 Using the ST4000 ...
Page 47: ...32 ST4000 Wheel Tiller Autopilots Owner s Handbook 3 Advanced Operation ...
Page 56: ...Part 2 Installing the ST4000 Part 2 Installing the ST4000 ...
Page 57: ...Part 2 Installing the ST4000 ...
Page 79: ...64 ST4000 Wheel Tiller Autopilots Owner s Handbook 5 Installing the ST4000 D286 2 D E D287 2 ...
Page 115: ...100 ST4000 Wheel Tiller Autopilots Owner s Handbook 6 Setting up the ST4000 ...
Page 135: ...120 ST4000 Wheel Tiller Autopilots Owner s Handbook ...
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