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  #21  
Old 04-18-2012
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Re: Twisted mainsheet

Actually, I use low tech, plaited dacron with a linear core on my boat, rather than a double braided line or some high tech line. It is a little more friction than a smooth shell double braid, expecially since I wash the line the line in fabric softener. [IMG]Photobucket[/IMG]

Above is a picture of my cockpit showing my mainsheet which is 7:1 so any twist can quickly add to the friction.
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  #22  
Old 04-18-2012
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Re: Twisted mainsheet

Quote:
Originally Posted by davidpm View Post
This is a Beneteau 36s5
As you can see the block is twisted so the line is twisted about 2 full turns.

If I forcibly twist the block until the lines run fair the block wants to twist back up.

The problem is not seem to be that it is reaved improperly. It is just that the line seems to have taken a set.

I have seen this on may boats and just now gotten around to asking about it. It seems to increase the friction in the system and seems to be a bad thing.
Is there anything that can be done to fix this?
I have a similar main-sheet arrangement to you, but have a different block set-up.

I think my set-up is what others have been suggesting.

I don't get any sheet/block twisting, but end-for-end the sheet every season - hence the (modified) bowline.
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  #23  
Old 04-19-2012
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Re: Twisted mainsheet

As a temporary measure I just move the bitter end forward. It looks a little better.
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Old 04-19-2012
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Re: Twisted mainsheet

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Originally Posted by davidpm View Post
As a temporary measure I just move the bitter end forward. It looks a little better.
That's an improvement. Why not try orienting the aft block properly and fixing it there - stopping it's ability to swivel? I have a similar setup for my mainsheet and there is really no need for the blocks to swivel.
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Old 04-19-2012
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Re: Twisted mainsheet




Here's the diagram I was looking for.

This utilizes a fiddle block on the traveler and a becket on the block.
davidpm likes this.
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Old 04-19-2012
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Re: Twisted mainsheet

Quote:
Originally Posted by Tempest View Post



Here's the diagram I was looking for.

This utilizes a fiddle block on the traveler and a becket on the block.
Does running the mainsheet forward to the mast like that add a vang component to it?
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Re: Twisted mainsheet

Quote:
Originally Posted by SloopJonB View Post
Does running the mainsheet forward to the mast like that add a vang component to it?
Interesting question! didn't consider that.

However, I think this illustration, distorts the distance that the blocks would be from the mast. ( not to scale).

It was the only illustration I could find of the fiddle block and the becket set up at the traveler....that I was thinking about for davids problem
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