High Tech Line - how to tie off? - SailNet Community
 
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post #1 of 8 Old 12-05-2009 Thread Starter
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High Tech Line - how to tie off?

I have several blocks and other places where I use lashings as opposed to a shackle and its time to replace the lashing. I plan to use Amsteel Blue but I'm not sure the best way to tie off the ends. The stuff is pretty slippery and I'm hoping someone (any riggers?) will know the best knots or technique for tying this stuff off after the lashing. Thanks.

s/v Whisper
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post #2 of 8 Old 12-05-2009
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I believe the line is a 12 strand single braid. If so, I would just tie it off with a few hitches and then tuck the tails through the standing part. Or simply sew the ends fast to the standing part with some waxed thread. Or both.

Here's a cool site for knots.

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post #3 of 8 Old 12-05-2009
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I'd use spiderline for lashing. It has a cover that protects against chafe and helps knots hold a lot better. Although spectra or dyneema would be better for higher load applications.

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Does anyone have any detailed pictures showing lashings? I've searched online but couldn't find much that pertained to sailboats.

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post #5 of 8 Old 12-05-2009
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Quote:
Originally Posted by Doodles View Post
I have several blocks and other places where I use lashings as opposed to a shackle and its time to replace the lashing. I plan to use Amsteel Blue but I'm not sure the best way to tie off the ends. The stuff is pretty slippery and I'm hoping someone (any riggers?) will know the best knots or technique for tying this stuff off after the lashing. Thanks.
If your replacing shackles with line lashings, maybe on of the "softies" would work. I use them all over my boat. Sail tacks, halyard shackles, block shackles, hanks (for Dux stays) most anywhere there was a hard shackle is now a softie.
A regular lashing with slick stuff involves multiple loops followed by a hitch in the middle of the loops to tighten everything up. If it is permanent (more or less) I will tie a stopper at the very end to keep it all in place. There may be a photo in my link (can't recall)

Softies | Colligo Synthetic Systems | Colligo Marine

(time spread between) Alaska, PNW, & Mexico


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post #6 of 8 Old 12-05-2009
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Rock climbers fought this concern for years....

Quote:
Originally Posted by Doodles View Post
I have several blocks and other places where I use lashings as opposed to a shackle and its time to replace the lashing. I plan to use Amsteel Blue but I'm not sure the best way to tie off the ends. The stuff is pretty slippery and I'm hoping someone (any riggers?) will know the best knots or technique for tying this stuff off after the lashing. Thanks.
Now they mostly sew runners.

Use a string (4 minimum) of half hitches to take the load, and then secure the tail with a double overhand knot.

A double overhand will not slip under full load even on the high-tech lines - well proven. A good whipping will also work.

(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")

"Well, I just climb up to them."

by Joe Brown, English rock climber




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post #7 of 8 Old 12-06-2009 Thread Starter
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Originally Posted by jmolan View Post
If your replacing shackles with line lashings, maybe on of the "softies" would work. I use them all over my boat. Sail tacks, halyard shackles, block shackles, hanks (for Dux stays) most anywhere there was a hard shackle is now a softie.
A regular lashing with slick stuff involves multiple loops followed by a hitch in the middle of the loops to tighten everything up. If it is permanent (more or less) I will tie a stopper at the very end to keep it all in place. There may be a photo in my link (can't recall)

Softies | Colligo Synthetic Systems | Colligo Marine
I've seen the Colligo site and the "softies". They are pretty neat and would work fine is suspect, of course the lashing would be cheaper. There is a link for a stopper knot, and its a Stevedore Stopper or Double 8.

Thanks to everyone for the input.

s/v Whisper
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post #8 of 8 Old 12-07-2009
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You can make your own softies as well and save a bundle.

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