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SmartPilot X-5 Tiller & GP Tiller Operating Guide
The Raymarine Track keeping algorithm ensures safe operation by correcting any
XTE as quickly as possible, but with a maximum convergence angle of 30º with the
Track Leg. It then maintains the vessel tightly on the desired track.
Large cross track error
If a cross track error of greater than 0.3 nm occurs, the SPX-5 Tiller system will sound
a Large Cross Track Error warning and the Pilot Controller will show whether you are
to the port (
Pt
) or starboard (
Stb
) of the planned track.
Tidal stream compensation
Under most conditions, the SPX-5 Tiller system will hold the selected track to within
±0.05 nm (300 ft) or better. It takes account of the boat’s speed when computing
course changes to ensure optimum performance.
Waypoint 1
Waypoint 2
Cross track error (XTE)
more than 0.3 nm
D5415-4
Planned route
Actual route
D3261-4
Waypoint 2
Waypoint 1
Boat's speed over ground
Tidal component
Boat's speed through water
