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et kjapt google søk ga dette svaret

https://forums.ybw.com/index.php?threads/st60-tack-button.25420/

The tack button tells you in the LCD display the compass brearing that your next tack can roughly make. It needs boat speed and heading info from the seatalk bus to work.

Think it defaults to 90 degrees as the angle you can tack through, its very useful when working out how far you have to stand off before tacking to make a mark. Obviously its only a rough guide because it cannot take account of tide etc.

tack er en funksjon for autopilot. som Hulda sier så er det en stagvending. Kanskje mest relevant ved single hand seiling

Men et kjapt google søk ga dette svaret

https://forums.ybw.com/index.php?threads/st60-tack-button.25420/

The tack button tells you in the LCD display the compass brearing that your next tack can roughly make. It needs boat speed and heading info from the seatalk bus to work.

Think it defaults to 90 degrees as the angle you can tack through, its very useful when working out how far you have to stand off before tacking to make a mark. Obviously its only a rough guide because it cannot take account of tide etc.