Raytheon ST6000 Plus Specifications download pdf (Page 28)

16 ST6000 Plus Autopilot Control Unit Owner’s Handbook

Cross track error

Cross track error (XTE) is the distance between the current position

and a planned route. This is displayed in nautical miles (nm), statute

miles (SM) or kilometres, and is taken directly from your navigator.

The Large XTE alarm sounds if the XTE exceeds 0.3 nm

• The direction of the error is identified as “Pt” port or “Stb”

starboard.

• To cancel the alarm and leave track mode, press standby to return

to hand steering, or auto to return to Auto mode.

Note: If the Large XTE alarm sounds, it is usually an indication that

the cross tide is too great for the vessel’s current speed.

Tidal stream compensation

Under most conditions, Track mode will hold the selected track to

within ±0.05 nm (300 ft) or better. The autopilot takes account of

vessel speed when computing course changes to ensure optimum

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Raytheon ST6000 Plus Specifications Page 28