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mainsheet purchase #134300
03/01/08 08:01 PM
03/01/08 08:01 PM
Joined: Aug 2005
Posts: 2,921
Michigan
PTP Offline OP
Carpal Tunnel
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Carpal Tunnel
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Michigan
How much is appropriate on a 31?

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Re: mainsheet purchase [Re: PTP] #134301
03/03/08 02:56 PM
03/03/08 02:56 PM
Joined: Aug 2001
Posts: 1,305
Asuncion, Paraguay
Luiz Offline
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Luiz  Offline
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Asuncion, Paraguay
Quote
How much is appropriate on a 31?


So far 8:1 doesn't seem to be enough for the mainsheet of my 27ft tri w/foils (wider than the F31, carrys a bit less sail).

I believe a 6:1 with 4:1 fine tune (24:1 total) would be better. Maybe I'll add a 3:1 fine tune to mine.


Luiz
Re: mainsheet purchase [Re: Luiz] #134302
03/04/08 10:20 AM
03/04/08 10:20 AM
Joined: Jun 2001
Posts: 623
Gulf Coast
tami Offline
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tami  Offline
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Right here in River Cities at the onLine Store is Harken's 12:1 system...

Re: mainsheet purchase [Re: tami] #134303
03/04/08 12:19 PM
03/04/08 12:19 PM
Joined: Aug 2001
Posts: 1,305
Asuncion, Paraguay
Luiz Offline
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Maybe I'm wrong, but I guess a 6:1 + a 4:1 fine tune will use less line than a 12:1 and dumping the sail should be faster/safer.


Luiz
Re: mainsheet purchase [Re: PTP] #134304
03/05/08 01:59 PM
03/05/08 01:59 PM
Joined: Aug 2002
Posts: 16
New Orleans, LA
WJJ Offline
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New Orleans, LA
12 to 1, triple fiddles at top, triple fiddle with becket and cam cleat at bottom.

Re: mainsheet purchase [Re: WJJ] #134305
03/06/08 08:36 AM
03/06/08 08:36 AM
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Thanks for your responses-
what do you think the loads are that these blocks see?
I am thinking of doing the triple fiddle top blocks and keeping my lower older blocks for a 12.1 but wasn't sure. I kind of like the idea of the 8:1 then a "fine tune" 16:1 but I just am worried about the extra line getting caught in one of the sheaves. Of course the drawback is the ability to blow the sheet and have it run out in time or not taking a half hour to sheet back in after a reach or run and ending up with a mile a sheet at your feet.

Re: mainsheet purchase [Re: PTP] #134306
03/06/08 08:45 AM
03/06/08 08:45 AM
Joined: Jun 2001
Posts: 623
Gulf Coast
tami Offline
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Listen to WJJ.

a. He's fast.
b. He has a 31, and that's not his first Fboat.
c. Listen to him. If it works for the fast, experienced, guy, it'll prolly work for you.

Re: mainsheet purchase [Re: tami] #134307
03/06/08 09:02 AM
03/06/08 09:02 AM
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Thanks...

WJJ, how many feet of sheet?

Re: mainsheet purchase [Re: PTP] #134308
03/07/08 09:50 AM
03/07/08 09:50 AM
Joined: Aug 2001
Posts: 1,305
Asuncion, Paraguay
Luiz Offline
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Luiz  Offline
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Quote
Thanks...

WJJ, how many feet of sheet?


Im also interested to know.

Now for some theory, considering that the mainsheet has to be (say) 15 ft long with the boom totally opened:

A 12:1 will need 12 x 15 = 180 ft of line

A 8:1/3:1 will need 8 x 15 + 3 x 5 = 135 ft of line (45 ft less to dump)

But this is theory only. It is safer to take the advice from an experienced F31R owner.

All the best,
Luiz


Luiz
Re: mainsheet purchase [Re: Luiz] #134309
03/07/08 12:22 PM
03/07/08 12:22 PM
Joined: Aug 2002
Posts: 16
New Orleans, LA
WJJ Offline
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WJJ  Offline
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New Orleans, LA
Tami, thanks for the kind words......

I will measure my mainsheet this weekend and let you know, but I am sure it is less than 100'.

My boat came with a 24:1 fine tune system. In any medium and higher wind the sheet had to be brought to a winch, and the fine tune was useless, 2 blocked way before I had proper trim.

Re: mainsheet purchase [Re: PTP] #134310
03/10/08 09:47 AM
03/10/08 09:47 AM
Joined: Aug 2002
Posts: 16
New Orleans, LA
WJJ Offline
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My mainsheet is 80', I don't think it has ever been all the way out, except while cruising around.

Re: mainsheet purchase [Re: WJJ] #134311
03/12/08 02:52 PM
03/12/08 02:52 PM
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Michigan
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Thanks,
I ordered the 12:1 triple fiddle get up with 100 ft of sheet (rather have it long than short to start with!). Using 5/16 ultralight as the sheet. Not high tech but close enough.

Re: mainsheet purchase [Re: WJJ] #134312
09/02/08 05:40 PM
09/02/08 05:40 PM
Joined: Aug 2008
Posts: 5
Bethlehem, PA
O
oscar Offline
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Bethlehem, PA
Quote
the fine tune was useless, 2 blocked way before I had proper trim.


Saved me money....thanks.


I sold a boat.....now I'm looking for three boats tied together.....

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