Chapter 2: Using the Wheel Pilot 21
2 Using the Wheel Pilot
Tidal stream compensation
Under most operating conditions, Track mode will hold the selected
track to within ±0.05 nm (300 ft) or better.
The autopilot takes account of the boat’s speed when computing
course changes to ensure optimum performance over a wide range of
boat speeds. If speed data is available, the autopilot will use the
measured boat speed. Otherwise it will use the default cruise speed
entered in Calibration Level 5 (see page 64).
D3261-2
Waypoint 2
Waypoint 1
Tidal component
Boat's speed through water
Boat's speed over ground
81194_1.book Page 21 Wednesday, July 25, 2001 12:10 PM
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