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  1. #11
    SmokeBait's Avatar
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    Quote Originally Posted by Redoleary View Post
    They also weren't testing amsteel.
    Exactly! I did not want to give fuel to the one wanting to start a fire by mentioning that.

    The testing I did is consistent with what Opie and some others have done. I'm very comfortable with it and so is our insurance company. We are whoopieslings.com, not Bechtel Labs, so we test with the resources we have available. There maybe be lighter/faster/stronger methods to make a soft shackle but ours is proven and is cost effective.

  2. #12
    Senior Member DemostiX's Avatar
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    Quote Originally Posted by SmokeBait View Post
    The soft shackles DID NOT break at 2700 pounds. They held just fine. That was the available load we had to test with. You are more than welcome to try smaller lines and/or different stopper knots. We have an insurance underwriter to deal with and will stay with what we both feel is adequate.
    The breaking strengths tested by l-36.com and informally at NERopes were of Dyneema SK-75- based lines. No more than 10-15% of any difference in breaking strength would be accounted for by differences in company who made the line of the specified size. Anyway, the ratios of breaking strength to line strength are what matters, and they are what is given. To get professional testing to Cordage Institute protocols it isn't surprising that NERopes would have preferred their consultant, Brion Toss, to test the devices with NERopes cord.

    Before knocking on NERopes, recall that they make the throw-line, Dynaglide.

    Not answered is whether I could expect a shackle with a diamond stopper knot in Dynaglide to be strong to not diminish the load-bearing capacity of an optimally constructed suspension of 7/64" Amsteel.

    Back in archives here and advanced to one of the first posts on the 'nacra biner" were test results by an HF member in which some alternative stoppers failed miserably. No details were given of knot construction.
    Last edited by DemostiX; 09-06-2012 at 18:41.

  3. #13
    but enough about me hppyfngy's Avatar
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    To quote Roseanne Roseannadanna,

    "Mr. Fader, you sure do ask a lot of questions for a guy from New Jersey."
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  4. #14
    Senior Member DemostiX's Avatar
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    Quote Originally Posted by hppyfngy View Post
    To quote Roseanne Roseannadanna,

    "Mr. Fader, you sure do ask a lot of questions for a guy from New Jersey."
    Roseanne, rest in peace. A life cut short prematurely, but not from a failed knot.

  5. #15
    Senior Member opie's Avatar
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    Quote Originally Posted by DemostiX View Post
    Not answered is whether I could expect a shackle with a diamond stopper knot in Dynaglide to be strong to not diminish the load-bearing capacity of an optimally constructed suspension of 7/64" Amsteel.

    Back in archives here and advanced to one of the first posts on the 'nacra biner" were test results by an HF member in which some alternative stoppers failed miserably. No details were given of knot construction.
    Here is the company that certified the shackles I sell..... It is from this certification, in which I have documented proof of the pull, unlike the tests supposedly done at NER from your l-36 source, that I am able to confidently derive a 1.6 factor of strength. (conservatively)

    http://www.millvalleysplicing.com/

    They will pull anything apart you send them. $100 per destructive pull, at least that's what I paid per specimen. I encourage you to make up whatever you have questions about and send it to them, or another company that does destructive testing.
    I am not a gram weenie. , But Im starting to see the merits!!!

    Kris' Splicing

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  6. #16
    gargoyle's Avatar
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    If the originator of this thread has a "better" way, then great. Share that info..in a manner that isnt pointing a finger at a specific company.


    I'd rather hear comments/posts like....
    "hey guys, I found this recent info, and I thought I'd share it.."
    "I found this info, tried it, tested it, and "this" works better for me.."
    "I'd stake your personal safety on my techniques, becuase I know that this works."

    If your just trolling for an argument, look elsewhere.

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