| High-Tech mainsheet #23256 08/13/03 08:45 PM 08/13/03 08:45 PM |
Joined: May 2003 Posts: 139 Daytona Beach FL TheoA OP
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Posts: 139 Daytona Beach FL | Ok, Since my boat is being fixed, I'm going to re-vamp a few things.
My mainsheet is big, fuzzy, and gets heavy when soaked. it's 6 or 7:1 purchase.
I've found some pictures of tornados or even a M20 running very thin sheet material. Appears that they run the thin stuff through the blocks, and put a cover over it (tapered) for handleing.
The M20 even had a 12:1 purchase!!! Using very small looking blocks.
Anyone have any insite into a mainsheet like this? I'm sure the cordage is $$, but if it's lighter, stronger, and allows it to run freer (sp?) I'm game.
94 N5.5SL
| | | Re: High-Tech mainsheet
[Re: BlowMe]
#23259 08/13/03 11:24 PM 08/13/03 11:24 PM |
Joined: May 2003 Posts: 139 Daytona Beach FL TheoA OP
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Posts: 139 Daytona Beach FL | I'm checking on that stuff now. Also wondering about using smaller blocks (40mm carbo's, or even 20's?), and going to a cascading type system to get higher purchase.
Any info on how they got a 12:1 system out of the rigging on the M20. Looks like part of it travels up the boom (I don't have one), maybe it's a 6:1 with a 2:1 cascade on it? I dunno, maybe I'm just looking for ways to spend $$
94 N5.5SL
| | | Re: High-Tech mainsheet
[Re: TheoA]
#23260 08/14/03 12:07 AM 08/14/03 12:07 AM |
Joined: Jun 2002 Posts: 19 St-Lawrence River, Quebec City... Flying_Frog
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stranger
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Posts: 19 St-Lawrence River, Quebec City... | I just did that custom job on my Inter-17R Mainsheet, the change is breathtaking. I'll post a pic and exact sheet names later. What you do, basically, is choose a mainsheet with a spectra or vectran core, and 'pull away' the cover. The exposed core runs incredibly smooth in the pulleys. Also choose a sheet 'cover' that does not 'expand' or 'sponge' water in. I'll post a pic. I was inspired by som.e canadian Olympic Tornados and 1 of the 18HT at our club that was bought from the Alter Cup. Later | | | Re: High-Tech mainsheet
[Re: TheoA]
#23261 08/14/03 09:34 AM 08/14/03 09:34 AM |
Joined: Jun 2001 Posts: 371 Michigan, USA sparky
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Posts: 371 Michigan, USA | I changed to the Carbo Ratchematic this year and bought 3/8" Swiftcord. It runs through the blocks beautifully and has a great feel to it. There is no cover on the line and it does not absorb water. I recommend this if you buy new line.
Les Gallagher
| | | Re: High-Tech mainsheet
[Re: TheoA]
#23262 08/14/03 10:44 AM 08/14/03 10:44 AM |
Joined: Jun 2001 Posts: 12,310 South Carolina Jake
Carpal Tunnel
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Carpal Tunnel
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Posts: 12,310 South Carolina | keep in mind that your class rules limit the amount of purchase you can put on your mainsheet. On the Nacra 6.0NA, it's 8:1 (although the factory system is 7:1). I'm not sure about the 5.5.
Jake Kohl | | | Re: High-Tech mainsheet
[Re: Jake]
#23263 08/14/03 12:38 PM 08/14/03 12:38 PM |
Joined: Jun 2001 Posts: 74 Reno, NV pschmalz
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Posts: 74 Reno, NV | According to the NACRA class rules, the maximum purchase on any NACRA mainsheet is 8:1, no cascades allowed.
Getting the full 8:1 is very important for a 5.8, and I would figure for a 5.5 too. | | | Re: High-Tech mainsheet
[Re: Chris9]
#23265 08/14/03 02:29 PM 08/14/03 02:29 PM |
Joined: May 2002 Posts: 3,114 BANNED MauganN20
Carpal Tunnel
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Carpal Tunnel
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Posts: 3,114 BANNED | The line was too big to run smoothly through the blocks, especially on 0-5 wind days. I've had this issue also, even with my brand new XLS 7/16th sheet. My only solution to the problem is to arch my back as I'm crossing under the boom. (I know by that point its to late) | | |
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