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Chapter 2: Using the Tiller Pilot 17
2 Using the Tiller Pilot
Manual track acquisition at low speeds
Using manual acquisition at low speeds requires additional care as
tidal streams have a far more significant effect at lower speeds than at
higher speeds.
In general terms, if the tidal flow is less than 35% of the boat’s speed,
you will not notice any difference in the tiller pilot’s performance in
Track mode. However, you should take extra care during manual
acquisition, as follows:
• before you select Track mode, make sure that the boat is as close
as possible to track, and that the direction made good over the
ground is as close as possible to the direction of the next waypoint
• positive checks of the boat’s position at regular intervals are vital,
especially if you are close to potential navigational hazards
Returning to Auto from Track mode
To return to Auto mode from Track mode:
• press
auto, or
• press
-10 and +10 together.
Cross track error (XTE)
Cross track error (XTE) is the distance between your current position
and the planned route. This is displayed in nautical miles (nm) and is
taken directly from your navigator.
Waypoint 1
Waypoint 2
Cross track error
(XTE)
D3260-2
81130_3.book Page 17 Wednesday, July 25, 2001 11:57 AM