: Thanks allot Chris for this good info. I know this is your area of expertise.
: I?m building a good leeboard right now and hoping it will improve my
: windward sailing. I found these drawing on the net. Any comments
: appreciated to keep me out of trouble.

: John

Hi John,
For a bit more effectiveness, use two leeboards that are assymentrically profiled. Kind of like splitting the drawing in two mirror halves.
Most blade type leeboards that I've seen are like that, the curved side against the hull.
The fan type are usually flat sided, as on Thames barges.

Mike Savage
South West Cork