Two cases have been noted in IRATA assessments where a Barrel knot also known as a Scaffold knot has been incorrectly tied around a karabiner to terminate a cow’s tail. If incorrectly tied, it is dangerous because it will slip undone if loaded and especially in a pre-tied knot it is very difficult to tell that it is not a standard Barrel / Scaffold knot by just looking at it.
The Lyon Equipment report (2001)* for HSE noted that the Barrel knot was the best knot to tie in the end of a cow’s tail for energy absorption.
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