Snapped line... which knot.

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echostorm
echostorm
QLD
1245 posts
QLD, 1245 posts
14 Jul 2006 9:28am
Hey all,

I snapped one of my lines the other day on a wave and am about to tie it all back together. Coming from a rockclimbing background with a little experience in fishing I am debating which knot to tie.

I know of plenty of ways to join the lines but WHICH one...
a. wont snap i.e. a knot that spreads the load over the knot equally so its not straining on one point
or
b. wont come undone

I have narrowed the choices down to the following. Can people offer suggestions on the following knots.

1. Double overhand aka Water knot. A very solid kont but will it spread the pressure over a larger area to avoid snapping???

2. Dbl Fishermans knot. Spreads the load a little more and is a neat knot and can possibly be undone with a little chewing.

3. Blood Knot. Spreads the pressure over a large area but cannot ever be undone. A very strong knot, but is it too strong (does it clamp down and create more strain then a fishermans knot when under intense pressure long term?

any other knots someone could suggest? I am desperate to get out in this NE tomorrow so any help is appreciated.
RAL INN
RAL INN
SA
2898 posts
SA, 2898 posts
14 Jul 2006 9:13am
Whatever you choose will be a weak point.

Just remember to shorten the other line and just 1 granny knot shortens the line a lot.
Munter
Munter
NSW
210 posts
NSW, 210 posts
14 Jul 2006 11:29am
Dude - don't re-tie your broken line. If it was weak enough to break under normal operating conditions before being knotted then it doesn't stand much of a chance with a knot in it.

If you decide to use the line anyway then perhaps you could move it to the rear lines to reduce the load. My strong recommendation would be not to re-use the line at all though.
tobes
tobes
NSW
1000 posts
NSW, 1000 posts
14 Jul 2006 11:52am
If it broke towards one end you might be able to make that set of lines into short lines eg 15m and get a new long set.
Here's some info on how to either tie, sew or splice new ends on your lines
www.kitesurfing-resource.com/surfing_kite_lines.htm
echostorm
echostorm
QLD
1245 posts
QLD, 1245 posts
14 Jul 2006 2:44pm
Munter it is the rear line. they are also a brand new slingshot lines and I dont want to replace them. Lucky the wave didnt rip my kiet instead!
silviu
silviu
VIC
663 posts
VIC, 663 posts
14 Jul 2006 5:37pm
If it is the brake line, I will give a shot to dbl fisherman. But you have to be sure you make it neat, shorten the other line too, than adjust the chicken loop to match the shortened brake lines.
Good luck, and watch the noted line all the time (it will brake again just where you knoted - thats's the say).
GalahOnTheBay
GalahOnTheBay
NSW
4188 posts
NSW, 4188 posts
14 Jul 2006 7:05pm
fishermans hands down, use at least a double but i would go a triple (pack and pre-stress it properly) - you will never want to untie it anyway...

a double fishermans will NOT undo easily once you load it up a lot. but then again thats a good thing! it has excellent cyclic, static, and dynamic load properties, as well as always dressing itself correctly. If you put a stopper on it by tying an overhand knot around the line then it is all but failsafe, as well as being very compact.

Rethreaded Figure Eight is actually "Better" because you can untie it more easily (a little bit at least), but it is a chunkier knot and is significantly weakened if you do not "pack" or "dress" it correctly.

i doubt you will undo a blood knot once it loads up properly if you use anything other than fishing line - plus it's a "messy" knot

a water knot is better (stronger) for tapes & webbing rather than rope, string or line. plus its not great with cyclic loading and can "undo" itself.

The Albright Knot is a death knot - dont use it on anything you need to stay tied.

see caves.org/section/vertical/nh/50/knotrope.html for one comparison or knots with static and dynamic loads.

wach out though as you have created a nice snag point for your other lines... I would either shorten the lines or buy new ones and keep these as spares.

is it possible i am more paranoid than silviu?????
echostorm
echostorm
QLD
1245 posts
QLD, 1245 posts
14 Jul 2006 7:35pm
Great reply GalahOnTheBay. THANK YOU. Yea, to be honest I didnt know much about the blood knot and I like how the fishermans knot has that nice "neat" finish.

Sounds like your a bit of a climber, good stuff!

Thanks for all your feedback. If you see a guy getting dragged down the beach you will know who it is
NSW, 4382 posts
15 Jul 2006 5:35am
Where did it break, near one of the ends or sewn sleeves?

I've tried all those knots, the only one that worked ok on spectra/dyneema was the fishermans knot, with at least 3 twists.

Eventually, you will break it again though, and losing a rear line again may end up with you have a nasty end to you day.

If the line broke near an end, cut all of the lines the same length and re-sleeve and either sew or tie loops in them.

You could just do 2 lines (use them for rears) and then make small extensions to make them the same as the other pair/fronts?

We sell a sleeving kite for $10, extra sleeving is 50c a metre.

A new line set (Ozone) that is stronger than any other brand that I know of, and better priced!

http://www.kitepower.com.au/catalog/product_16490_Ozone_360kg_Linesets_cat_315.html

Cya and

Knotssuck

Steve McCormack
echostorm
echostorm
QLD
1245 posts
QLD, 1245 posts
15 Jul 2006 6:34am
The lines are only 1 month old... soo many people are saying to buy new lines. 80% strength on new lines should be addequate... should it??
GalahOnTheBay
GalahOnTheBay
NSW
4188 posts
NSW, 4188 posts
15 Jul 2006 7:08am
yeah but over time they will wear and break at the knot a lot quicker than the new lines

I agree with steve if the break is within a couple of m of the end of the line cut them all and resleve them. Otherwise seriously consider buying new lines - because knowing my mate murphy the WILL break at the worst possible time...

Climbing? Nah - too much like hard work - and it would ruin my long nails - lots of fishing, sailing and lessons in the school of hard knocks though...

Steve - please note knots do not suck as long as there are about 15-35 of them...
silviu
silviu
VIC
663 posts
VIC, 663 posts
15 Jul 2006 8:02am
is it possible i am more paranoid than silviu?????


NO!!!! Nobuddy can be more paranoic than me (when it comes to safety). However it is just the tought that at the end of the line is YOU, and the tought that the line may break at the worst time....
This is what drives me.
NSW, 4382 posts
15 Jul 2006 8:27am
quote:
Originally posted by GalahOnTheBay


Steve - please note knots do not suck as long as there are about 15-35 of them...



There is a school of hard knots, and if you failed, and came out of the school not knowing lots about knots then, the parting advice from the principle knotter was to use lots of knots when you don't know knots.

Cya and

Knotssuck

Steve McCorknot

gruezi
gruezi
WA
3464 posts
WA, 3464 posts
15 Jul 2006 8:38pm
You are a funny man.

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