A while back Ian G3SEK mentioned in a posting:
"Darrel Van Buer wrote:
>Climbers seem to prefer the double figure 8 bend - it's work to tie and
>really hard to untie, but virtually nuke-proof as far as coming undone
Absolutely - even in slick plastic rope after years of use, figure-of-
eight knots still don't even think about coming loose. They have the
advantages of a fairly straight pull out of the knot (minimizing loss of
strength in the rope) combined with a lot of friction inside the knot. Tied on
a doubled-over end of rope, the figure-of-eight makes
strong loop. To join two ropes, tie a loose figure-of-eight on one end;
then thread the other rope into it from the opposite end, keeping
parallel with the first rope to make a second interlocking figure-of-
I've done a search for "double figure 8 bend" on the web and can't find any
other references to this knot.
From the description, it's possible that the description is a double sheet
bend or a knot variously known as a Carrick bend,
Josephine knot, or anchor bend. When tied correctly, this appears to be a very
highly regarded mechanism for joining two lines
together temporarily. However, it must be done correctly!
Can someone clarify?
-- Eric K3NA
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