Jump to content

Brion Toss

Member Since 26 May 2007
Offline Last Active Jan 20 2015 09:06 PM

Posts I've Made

In Topic: Rope/knot/splice load testing

20 January 2015 - 09:06 PM

One more detail,

It puzzled me that most of the samples broke at the end of one of the buries, instead of at the eye. At first I attributed this to a short taper and/or bury, but upon examining some of the pieces, the tapers were good, and the buries, too. I now think that the cause might have been that the eyes were too tight, so that one of the legs fetched up, and prevented the load on the two legs from equalizing. Next test, we'll be making slightly looser eyes.

Also, if anyone would like to contribute a shackle or two, we could see if individual style or skill affects shackle strength significantly. Sen your pieces to my shop:   BTYR, 313 Jackson Street, Port Townsend, WA 98368

In Topic: Rope/knot/splice load testing

13 January 2015 - 03:58 PM

Hi again,

After all but one sample of each diameter had been broken, they averaged the strengths and cycled the last shackle 10 times at half that load, then went for the break. I don't have the rate of cycling number, but will get that when we do the next round.


In Topic: Rope/knot/splice load testing

10 January 2015 - 09:24 PM

Hi all,

As Allen kindly noted, the results of this round of tests are finally in, and they look good. You'll see a video of one break, as well as some information here: https://www.facebook.com/brion.toss. And a few posts about it on Spartalk: http://www.briontoss...=7497#poststop, and http://www.briontoss.com/spartalk/showthread.php?p=7504#poststop. 

Next round I hope to try a couple of refinements to improve things further. Will keep in touch, and I hope it won't take so very long. Meanwhile if any of you want to make some for breaking, we could include them. I am using Endura 12 for the most part.