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[email protected] dougking888@yahoo.com is offline
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First recorded activity by BoatBanter: Feb 2007
Posts: 900
Default an attempt to develop a tacking analyzing system

"Scout" wrote:
I know I can do better to windward.
I'm hoping to develop a means of analyzing my boat's performance. The chart
was made using my Garmin tracks, AutoCAD 2000, and some notes taking during
the sail.http://sports.webshots.com/photo/280...97509592csvCYW


wow, your tacks sure make nice sharp angles!

Without the relative speeds at the various angles, looking at the
pointing angle alone will not provide any useful insight. I'm sure the
boat can point higher.

What you need is a polar diagram
http://www.newavesys.com/sailprod.htm
I bet Nick Hake has them for your boat.

Then comes the fun of learning to sail the boat to it's predicted or
potential velocity at the given angle.

Fresh Breezes- Doug King