Chapter 2: Advanced Operation 21Note: If you have set the vessel type to SAIL BOAT, you can adjust the defaultAutoTack angle in User Calibration (see page 24).When you AutoTack in Wind Vane mode, the boat turns through theAutoTack angle. The SmartPilot will then trim the heading to mirror thelocked wind angle from the previous tack.Operating hints for Wind Vane mode• Always trim your sails carefully to minimize the amount of standinghelm.• Reef the headsail and mainsail a little early rather than too late.• In Wind Vane mode the SmartPilot will react to long-term wind shifts, butwill not correct for short-term changes such as gusts.• In gusty and unsteady inshore conditions, it is best to sail a few degreesfurther off the wind so that changes in wind direction can be tolerated.2.3 How do I display boat data?Use the disp key to show ‘data pages’ of SeaTalk or NMEA data:1. Press disp to access the first data page, and press it again to cycle througheach data page in turn:• when you cycle past the last data page, the display returns to the cur-rent SmartPilot mode screen (for example, AUTO)• 4 data pages are set in the factory as a default (see diagram): withinUser setup you can select up to 15 pages and control the informationthey display (see page 23)WindAutoTack - StarboardD5399-2WindAutoTack - PortAutoTackangleAutoTackangle