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View Full Version : Daggerboard/Centerboard Size



fishmonger
03-14-2005, 01:28 PM
How big do I need to make my daggerboard or centerboard for my 12' sailing skiff? I've heard that is has to be about 4% of the sail area, but is that regardless of the angle of heel--or do I need 4% immersed at all times. I'm using a standing lug sail about 70 sq. ft.

Thanks!

WayGray
03-14-2005, 09:28 PM
In a similar situation I constructed a trial daggerboard. I would sail, then reduce the board area and sail again, until I felt the effectiveness of the board to be diminishing, i.e. unacceptable leeway angle. Not very theoretical, but it gave me the needed area before I constructed something more elegant and permanent.