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mainsheet #239936
11/10/11 08:28 AM
11/10/11 08:28 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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pgp  Offline OP
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What ratio do you use? If it's greater than stock, what is your rational?


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

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Re: mainsheet [Re: pgp] #239939
11/10/11 09:54 AM
11/10/11 09:54 AM
Joined: Apr 2004
Posts: 713
WA, ID, MT
davefarmer Offline
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WA, ID, MT
My Stealth has 7 to 1, which I think is stock, and I'm very happy with it. It runs free quickly, is plenty of power for sheeting in, and no miles of line on deck. The HT with 9 to 1, and the 22, with 12 to 1 have much more line to deal with, both to keep on the tramp, and the multiple pulls to sheet back in when playing the main.

Dave

Re: mainsheet [Re: pgp] #239943
11/10/11 12:19 PM
11/10/11 12:19 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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9:1 Ronstan Orbit blocks

New Vipers are coming with a Harken 10:1. I don't think the Harken is the best in this application, and I think 10:1 is too much line. I'd like to run a 8:1, but I'm too wimpy.


I'm boatless.
Re: mainsheet [Re: pgp] #239948
11/10/11 01:13 PM
11/10/11 01:13 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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Have you ever had a problem UNDER sheeting?


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: Karl_Brogger] #239949
11/10/11 01:26 PM
11/10/11 01:26 PM
Joined: Jul 2007
Posts: 439
Memphis, TN
M
mikeborden Offline
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Memphis, TN
Why in the hell do you need a 10:1 on an F16?

I have a tendency to sheet too much with a 9:1 and I've debated in going to an 8:1 to help prevent it.

I'm not bashing you Karl, you just happened to post this, I'm actually saying this to the forum as a whole. smile

My setup is a 9:1 with a taper, and the taper makes all the difference in the world! I've ran it without and it SUCKS! period.

Mike




Viper USA 132

1984 Hobie 18
Re: mainsheet [Re: pgp] #239953
11/10/11 01:58 PM
11/10/11 01:58 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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"Sheet too much" I thought that was almost impossible.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: pgp] #239955
11/10/11 02:08 PM
11/10/11 02:08 PM
Joined: Feb 2008
Posts: 242
Brisveagas
Aido Offline
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Aido  Offline
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Brisveagas
I have 7:1on my viper. I thought it was 8 but a loop was dropped out of it when i picked up the boat from AHPC. Im too lazy to fix it. But i have got used to it. You dont have to pull in as much sheet if you have to dump it at the top or bottom mark. Also i find that its easy to over sheet the main in light air and slightly less purchase helps to prevent this.

I definetly dont think you need 10:1. But maybe it would be the go when we all get too old to deal with the big air.


Aido
Viper 288
Re: mainsheet [Re: mikeborden] #239956
11/10/11 02:13 PM
11/10/11 02:13 PM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
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Originally Posted by mikeborden
Why in the hell do you need a 10:1 on an F16?


Mike




Fatigue is your enemy. Many of us still have to work our own mains and I've even moved the cleat up so I can't cleat it from the wire (keeps me from getting lazy) so at the end of the day I'm still looking for extra purchase and I have 10:1 on my F18. Good news is I'm sailing more and more with crew that expects to get the main which is soooooo nice! Maybe I'll drop it to 8:1 cause all that sheet in my space is annoying. :-)


David Ingram
F18 USA 242
http://www.solarwind.solar

"Do or do not. There is no try." - Yoda
"Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall
"You don't have to be a brain surgeon to be a complete idiot, but it helps"
Re: mainsheet [Re: pgp] #239957
11/10/11 02:24 PM
11/10/11 02:24 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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ratio is determined by simply counting the number of sheaves, yes? Assuming they're all the same diameter.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: pgp] #239960
11/10/11 04:15 PM
11/10/11 04:15 PM
Joined: Sep 2007
Posts: 571
Hamburg
Smiths_Cat Offline
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Hamburg
Block diameter doesn't matter for the ratio. On non/cascading systems simply count the lines between the upper and lower assembly (e.g. 7 lines in between = 7:1)
Block diameter is important for friction.

Power is just one element in the equation. Low ratio is may be too coarse to adjust the main. High ratio is may be too slow.

Re: mainsheet [Re: pgp] #239961
11/10/11 04:28 PM
11/10/11 04:28 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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What ratio are you using? You sail 18 HT correct?


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: pgp] #239963
11/10/11 04:36 PM
11/10/11 04:36 PM
Joined: Sep 2007
Posts: 571
Hamburg
Smiths_Cat Offline
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Hamburg
No I sail a Javelin 16, it is F16 size. I use 7:1. Never thought about the ratio, but many time about this shitty blocks from a big company with H.

Re: mainsheet [Re: pgp] #239966
11/10/11 05:04 PM
11/10/11 05:04 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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I use those same "H" blocks. Every few months I throw the whole mess, lines and all, into a tub of fresh water for a day or two. They come out feeling like new.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: David Ingram] #239967
11/10/11 05:08 PM
11/10/11 05:08 PM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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Northfield Mn
Originally Posted by David Ingram
Originally Posted by mikeborden
Why in the hell do you need a 10:1 on an F16?


Mike




Fatigue is your enemy.


Bingo.

For me I think the 10:1 is actually more of a fatigue inducer on an F16. Sheeting is easy, but you're working such a large quantity of line that it wears you out. For me the 9:1 is a nice balance.

If I had the strength I'd be running an 8:1, but I'm working the piss outta the mainsheet going upwind. Its not so much that you can over sheet the main, as in too much tension, but how efficiently you can work it in the range you need to. Like Dave, I don't cleat when I'm on the wire to keep myself from getting lazy.


Originally Posted by mikeborden
My setup is a 9:1 with a taper, and the taper makes all the difference in the world! I've ran it without and it SUCKS! period.


I built a tapered main sheet when I bought my last boat, with the Ronstan blocks I honestly couldn't tell if it made any difference in ease of sheeting. I love those blocks.

Last edited by Karl_Brogger; 11/10/11 05:11 PM.

I'm boatless.
Re: mainsheet [Re: pgp] #240023
11/12/11 10:51 AM
11/12/11 10:51 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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pgp  Offline OP
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How much line do you need for 9:1? I suppose that if I wanted 8:1 the proper length would be mid way between 7:1 and 9:1?


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: pgp] #240075
11/14/11 07:46 AM
11/14/11 07:46 AM
Joined: Jul 2006
Posts: 549
Knokke-Heist - Belgium
Gilo Offline
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Knokke-Heist - Belgium
I definately like the 9:1, both for skipper or crew.
Lengths: total: 12.20m (incl. split tail), 3.6m taper for Harken 9:1.

Gill


Falcon F16 - BEL666
Boats: TheBoatShop.be
Stories: bladef16.blogspot.com
Re: mainsheet [Re: pgp] #240108
11/14/11 06:21 PM
11/14/11 06:21 PM
Joined: Jan 2009
Posts: 5,525
pgp Offline OP
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Thanks Gill.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: mainsheet [Re: pgp] #240292
11/18/11 10:47 PM
11/18/11 10:47 PM
Joined: Apr 2004
Posts: 713
WA, ID, MT
davefarmer Offline
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davefarmer  Offline
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Posts: 713
WA, ID, MT
Karl, have the orbit blks held up for you? I had a less than satisfactory experience with them once, and have never tried them again.

Dave

Re: mainsheet [Re: pgp] #240296
11/19/11 07:04 AM
11/19/11 07:04 AM
Joined: Feb 2005
Posts: 4,118
Northfield Mn
Karl_Brogger Offline
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Northfield Mn
Haven't had any issues yet.


I'm boatless.

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