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20 ST1000 Plus & ST2000 Plus Tiller Pilots - Owner’s Handbook
2 Using the Tiller Pilot
Safety in Track mode
WARNING:
Track mode provides accurate track keeping even in complex
navigational situations. However, it is still the skipper’s
responsibility to ensure the safety of their boat at all times
through careful navigation and frequent position checks.
Passage making in Track mode assists precise navigation and
removes the tasks of compensating for wind and tidal drift. However,
you MUST still maintain an accurate log with regular plots:
Confirming position at the start of a journey
• At the start of a journey you must always use an easily identifiable
fixed object to confirm the fix given by the navigation system.
• Check for fixed positional errors and compensate for them.
Verifying computed positions
• Always verify the computed position with a dead reckoned
position, calculated from the average course steered and the
distance logged.
Plot frequency
• In open water, you should make plots at least every hour.
• In confined waters or when near to potential hazards, you should
make plots more frequently.
Setting waypoints
• Local variations in radio signal quality and changes in the tidal
stream can produce deviations from the desired track. When
setting waypoints, remember that deviations can occur.
• Thoroughly check along each track. Check up to 0.5 nm each side
of the track to ensure that there are no hazards within this zone.
• For the waypoint advance function to work, the last four
characters of adjacent waypoint names must be different.
81130_3.book Page 20 Wednesday, July 25, 2001 11:57 AM