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Boats hardly anyone talks about Pt 2 - Javelin
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NickA View Drop Down
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    Posted: 23 Aug 13 at 9:52pm
Thats ME on that wire there!  Southwold a couple of years back.  

Not sure what that sheet runs over. Though we do get through quite a few main sheets, so far it's cleat damage not boom damage that kills them - I shall take a look in the morning. :=)
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2547 View Drop Down
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Aug 13 at 10:11pm
Originally posted by NickA

Thats ME on that wire there!  Southwold a couple of years back.  

Not sure what that sheet runs over. Though we do get through quite a few main sheets, so far it's cleat damage not boom damage that kills them - I shall take a look in the morning. :=)

I'd run the sheet external like this ...
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Posts: 784 		Post Options Post Options   Quote NickA Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 13 at 9:10pm
Can't honestly see what's been done on that furball.

For some reason, not routing the main inside the boom, on a Jav, results in the helm getting garotted. Our main really does run through a hole in the aluminium of the boom;  but it's carefully filed down and now highly polished aluminium so adds little friction at all, certainly doesn't wear the sheet out. 

Meanwhile, Sailfest has proven europes faster furballs to be quicker than the average Javelin club sailor .... but I doubt the mainsheet has anything to do with it  Smile
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Posts: 611 		Post Options Post Options   Quote Noah Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 13 at 10:49pm
I also prefer the internal route to the external - even with loops to keep the sheet tight to the boom it decreases headroom albeit only a half inch or so, and the loops always fail at  the most inopportune moment with the ever present threat of garrotting :-(
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 13 at 3:47am
Originally posted by Noah

I also prefer the internal route to the external

Agree that loops are untrustworthy, but a piece of Mylar cloth for the whole length OTOH... I get very nervous about cutting longish slots in the boom. If it's safe surely the boom must be overspecified.
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Sailcloth loop the the majority of the length and no slots in the boom is the way to go. 
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Only works if you have a loose footed main.  
What could possibly go wrong?
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Aug 13 at 6:58pm
Originally posted by Dougal

Only works if you have a loose footed main.  

Edit:

You get a rectangle of sail cloth and two strips of spinnaker repair tape ... loop the rectangle below the boom then tape it to each side of the boom. That way the helm can never get garotted and as the loop is soft you don't lose any space under the boom when tacking/gybing as the cloth just brushes aside.

This way the mainsheet does not run over any edges and so does not have friction which is undesirable for a number of reasons least of all the sheet wares out ...


Edited by 2547 - 28 Aug 13 at 10:30am
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Dougal View Drop Down
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Posts: 556 		Post Options Post Options   Quote Dougal Quote  Post ReplyReply Direct Link To This Post Posted: 28 Aug 13 at 4:01pm
Originally posted by 2547



Originally posted by Dougal

Only works if you have a loose footed main.  

Edit:
You get a rectangle of sail cloth and two strips of spinnaker repair tape ... loop the rectangle below the boom then tape it to each side of the boom. That way the helm can never get garotted and as the loop is soft you don't lose any space under the boom when tacking/gybing as the cloth just brushes aside.
This way the mainsheet does not run over any edges and so does not have friction which is undesirable for a number of reasons least of all the sheet wares out ...



That would work!
What could possibly go wrong?
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NickA View Drop Down
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Posts: 784 		Post Options Post Options   Quote NickA Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 13 at 9:42pm
Those booms are significantly over engineered; some people cut a triangle off the back end for extra clearance and lots of them have holes in where stuff like spinny pole retainers were once mounted.  We did bend one once, probably landing heavily on it during a capsize, but it was bent back out again and is still in good service.

One thing about being a bit old fashioned and lacking in carbon whatnots, Javs are pretty strong.
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