Alpine butterfly knot is a midline knot that is easy to untie after it has been loaded. The problem with knots that are easy to untie, is they untie easy. We discovered while pull testing this that it slips, though at fairly high forces. We also discovered that if you tie it slightly wrong, it still works... sort of. Learn about this knot in this video and what it can do, can't do and then go have fun and use it.

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What is an alpine butterfly
00:32 Untie tests
01:58 History of knot
02:45 How to tie it
04:42 How strong is it
08:40 It can slip!!!
11:39 Isolating a core shot with tests
16:28 Follow through inside something that doesn't open
17:22 Break testing it tied wrong
21:53 Ring load testing
23:28 Double butterfly
25:36 Renaming the knot

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