Talk:Butterfly bend

Incorrect information
Under the Security heading, we have "The study, however, recommended the Double fisherman's knot because the butterfly bend was 'almost impossible to untie after a significant load of about 1,000 lbs. was applied.'" However, I read the cited source, Knot Break Strength vs Rope Break Strength at http://caves.org/section/vertical/nh/50/knotrope-hold.html, and the study didn't actually test the alpine butterfly as a bend, but rather as an end loop (like the way you'd use a bowline). You can confirm this by reading the "Method" section, which states "the Bowline, Fig. 8 end and bight, and the Butterfly knot had one end on the bollard. Bollards on both ends held the Fisherman's, and Sheet Bend knots." They were using one bollard for the "butterfly knot," grouping it in the same category as the loops, not the bends.

Conversely, the site http://www.animatedknots.com/alpinebend/index.php states that "the big advantage of the Alpine Butterfly Bend is... one that is easy to undo even after a heavy load." My own experience confirms this. The two loops on the end act like a hinge to break the back of the bend, just like you have in the zeppelin bend, the sheet bend, and the bowline for example. — Preceding unsigned comment added by 67.166.21.138 (talk) 02:20, 16 June 2017 (UTC)

Expand
Shouldn't somebody expand this thing? It's an extremely notable knot. I'd do it, but I don't know very much about it. Jonathan321 (talk) 15:43, 2 November 2008 (UTC)

Step-by-step
It's interesting that in the step-by-step image, the first image shows the blue going over-under-over, but the red goes under-over-over... is that right? — Preceding unsigned comment added by Hellznrg (talk • contribs) 00:00, 19 April 2017 (UTC)

Yes-- that is correct. You can confirm here: http://notableknotindex.webs.com/butterflybend.html — Preceding unsigned comment added by 67.166.21.138 (talk) 02:26, 16 June 2017 (UTC)