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Sail & Rigging - Swan 40 upwind
18 September 2014 - 13:07
#1
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richardforrest
Join Date: 01 February 2007
Posts: 57

Swan 40 upwind
Close-hauled I find that on starboard tack I can sail 5+ degrees closer to the wind than on port tack. I have had the standing rigging alignment and tension checked by an expert but apparently everything is in order.
Any ideas ?
18 September 2014 - 15:05
#2
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mike st. john
Join Date: 03 March 2007
Posts: 241

HI Richard,

My first guess is alignment.. How did the expert check it? Did he use the main halyard? If so do you have a setup for two main halyards and did he account for the offset if you do?

Again I defer to Lars...

Fun Fun


Mike

19 September 2014 - 11:45
#3
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the professor
Join Date: 02 January 2008
Posts: 1547

Dear Mike and Richard
I think Mike is on the right track, the wind unit at the mast head may be 2½ deg off the proper alignment.
Kind regards
Lars
26 September 2014 - 17:07
#4
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ccolton
Join Date: 15 April 2011
Posts: 393

Dear Richard,

How are you measuring the difference? If you're using technology, that may be the problem. I doubt this is the case but you may want to compare the windex at the mast top with the instruments. I chartered a boat recently that was off by 10 degrees. It took me several tacks to realize my mistake.

Good luck,

Chris Mabel's Casse Tete
30 September 2014 - 12:51
#5
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richardforrest
Join Date: 01 February 2007
Posts: 57

Dear Richard, How are you measuring the difference? If you're using technology, that may be the problem. I doubt this is the case but you may want to compare the windex at the mast top with the instruments. I chartered a boat recently that was off by 10 degrees. It took me several tacks to realize my mistake. Good luck, Chris Mabel's Casse Tete

Thanks, I will start by checking the masthead unit alignment
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