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Old 12-14-2011, 01:23 AM
allene allene is offline
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Join Date: Feb 2008
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Quote:
Originally Posted by rickc View Post
I am interested in any testing results anyone knows of for the Strait Bend (pg 72 of the Apprentice). My specific use for this knot would be to join two 8mm to 11 mm nylon climbing ropes. The joined ropes would be used for rappelling. Typical forces are less than 1000 lbs force but with considerable possible jerking as the line is loaded and unloaded. I am unhappy wih the knot currently beiing recommended by many in the climbing community and am looking for a knot with a good lead, is relatively easy to untie after loading, is reasonably strong, and is secure under load cycling.
Thanks for your help in advance.
Rick C
I just found some references on the topic and put them on my site. The strait bend is the same as an alpine butterfly pulled straight. (It is the alpine butterfly with the loop cut). Link This article is probably of interest as it deals with climbing knots in general. It says that the knot retains 61 to 72% of its strength on page 15.

I found other articles and they are indexed here http://L-36.com/rope_articles.php

Allen
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