Testing knot strength? - Colorado Fishing Forum

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Old 01-31-2008, 11:36 AM   #1 (permalink)
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Default Testing knot strength?

Does anyone know a sure fire way to test knot straight. If anyone ever watches the show north American fisherman; every week they have a segment called knot wars(Or something like that) where they put 2 knots head to head and test their breaking strength. I've been using a new knot the past few years and while Ive never had it fail Id still like to know how it stacks up to the other more popular knots.

Any ideas?
[me=JAY] [/me]
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Old 01-31-2008, 11:50 AM   #2 (permalink)
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Default Re: Testing knot strength?

ive watched not wars a couple times, my buddy just sent me a link to u-tube it, i will see if i can find it!
http://link.brightcove.com/services/...ctid1379596891


that should be it, not sure how many are on there!
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Old 01-31-2008, 11:58 AM   #3 (permalink)
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Default Re: Testing knot strength?

Next week on the show they are pitting the Palomar against the Trilene. Cant wait to see that!

On a more serious note: How pathetic is my life that I look forward to seeing the next knot war?

Somebody shoot me.

GAAAA!!!!
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Old 01-31-2008, 12:02 PM   #4 (permalink)
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Default Re: Testing knot strength?

you could also use an old hand scale, tieing one end to a unmovable object and the other end to your fifty pond hand scale and start pulling, till it breaks!
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Old 01-31-2008, 12:05 PM   #5 (permalink)
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Default Re: Testing knot strength?

The point I was getting at is they are only testing the more popular knots. I guess I could rig something up and see.
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Old 01-31-2008, 12:08 PM   #6 (permalink)
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Default Re: Testing knot strength?

That won't work... There are two (main) aspects of knot strength. There is what I call "static strength". That is, hang a weight supported by the knot and see at what weight it breaks. And there is "dynamic strength" (again, my own term). That is, take a weight supported by a knot and drop the weight a fixed distance. Basically, you're testing a "jerk". Knots will behave differently in these two scenarios.

Tying the line to a "fifty pond hand scale" and pulling will result in testing some combination of static strength and dynamic strength and will almost certainly not be repeatable.

One of these days I'll make up a knot testing rig and do some of these tests. Could be fun, if a bit nerdy.

-David
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Old 01-31-2008, 12:11 PM   #7 (permalink)
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Default Re: Testing knot strength?

Quote:
Originally Posted by hurltim
On a more serious note: How pathetic is my life that I look forward to seeing the next knot war?
Somebody shoot me.
GAAAA!!!!
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Old 01-31-2008, 12:12 PM   #8 (permalink)
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Default Re: Testing knot strength?

Quote:
Originally Posted by DavidK
One of these days I'll make up a knot testing rig and do some of these tests. Could be fun, if a bit nerdy.
If you do Id be interested in trying some knots
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Old 01-31-2008, 12:13 PM   #9 (permalink)
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Default Re: Testing knot strength?

Quote:
Originally Posted by krazluck
Quote:
Originally Posted by hurltim
On a more serious note: How pathetic is my life that I look forward to seeing the next knot war?
Somebody shoot me.
GAAAA!!!!
Exactly!!! Rent a gun--buy a bullet.
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Old 01-31-2008, 12:57 PM   #10 (permalink)
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Default Re: Testing knot strength?

I agree with DavidK,, but I think the scale and pull method would work for most purposes.

You need a scale with a slide stop so you can tell exactly how far the scale pulled before the line broke.
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