Exiting Track Mode; Cross Track Error - Raymarine ST4000+ Owner's Handbook Manual

81131_7.book Page 17 Wednesday, March 17, 2004 3:59 PM
Chapter 3: Advanced Operation

Exiting Track mode

Cross track error

1. Steer the boat to within 0.1 nm of track.
2. Bring the heading to within 5° of the bearing to the next waypoint.
3. Press auto.
4. Press track to enter Track mode. The display then shows the
locked pilot heading.
Note: Tidal streams have a far more significant effect at lower speeds
than at higher speeds. If the tidal flow is less than 35% of the boat's
speed, you will not notice any difference in the autopilot's
performance in Track mode. However, you should take extra care
during manual acquisition, as follows:
• Before you select Track mode, make sure the boat is as close as
possible to track, and the direction made good over the ground is
as close as possible to the direction of the next waypoint.
• Make positive checks of the boat's position at regular intervals,
especially if you are close to potential navigational hazards.
You can return to either Auto or Standby mode from Track mode by:
pressing auto to return to Auto mode
•
pressing standby to return to manual steering
•
Cross track error (XTE) is the distance between the current position
and a planned route. The autopilot receives the cross track error
information from the navigation equipment, and displays the XTE in
nautical miles (nm), statute miles (SM) or kilometres.
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