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post #4 of Old 08-02-2011
davidpm
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Quote:
Originally Posted by jfedero View Post
We are in SF Bay between GG and Alcatraz. Current can be a factor, but we try to account for that. I am measuring total heading difference and dividing by two. So for instance this weekend we were going from a heading of 160 to 270 and then back to 160. We were at slack condition, with winds 20+ mph with some higher gusts.

What I am suspecting is the mast is raked too far aft. When you look up at it, the rake is very significant, I estimate maybe 12 inches.
You may want to check your compass with a hand-bearing compass.
The mounted compass can be off a lot.
Also I like to check with a track from the gps

With wind that strong I have never been able to get a 90 degree tack. Of course I almost always have current.
When the wind is strong free-board and sideways slippage is worse.
Waves are a factor that can cause you to loose points too.

What condition are your sails?
How much were you healing. If more than a few degrees reefing will actually improve your pointing.
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