I saw a video that helped me learn the double dragon loop, and I set out to make a video that would show more clearly how to tie it so that it could be passed through a ring. Then when I compared it to other places online that show how to tie it, the way I learned seems different from everything else I’ve seen. So this video shows both ways, hopefully making it easy and clear to see how both are tied, and also gives both forms for comparison. No idea what to call the second way.
Thoughts please? Anybody recognize the second way shown in the video?
There are three loops brothers:the Tugboat A,the Tugboat B and the Perfection loop.
If you re-tuck the tail of “A”, then you get the “classic” Double Dragon:
If you do the same with the tail of “B”, then you get the “other” Double Dragon.
The one of the two who get the most benefit from this re-tucking is “A”, because in its basic version is more unstable than “B”, and, if transformed into the Double Dragon, almost miraculously this defect disappears and becomes a stable and strong knot.However also the “B” gains something from this re-tucking the tail, and considers that the base version is a better knot than “A”, so I think it’s worth it.
It can be done also with the Perfection loop, but it is already in itself a stable knot, and this arrangement does not eliminate its defects that, as recently reported by X1, are mainly the fact that it may have a tendency to jam, and that is not a PET (post eye tiable) loop when is made using the end of rope.
To make sure I’m understanding you correctly, Tugboat A with the extra wrap is the first double dragon I showed in the video that I said seemed to be the correct one, and Tugboat B with the extra wrap is the second version I showed? Are they both considered double dragons? Is there a name for one that differentiates it from the other? I think I prefer B, it’s a little easier to tie by the method I show, and somehow the way the two legs of the loop run out from the knot, under the collar (correct term?), and into the loop itself seems a little more direct to me.
Yes!
Note that the difference between these two “brothers” lies in the way in which the initial Crossing Knot form relates to the direction that you then give to the first and second leg of the loop, and consequently the direction that takes the tail when he turns around the standing part (forming the collar at this point), and then make the last pass through the knot’s nub (actually it is only at this point that the Crossing Knot really takes form (and it is that which corresponds to the nipping turn of a Bowline, not the collar, but in reality are ongoing debates about these terminologies ..)).
I do not know, for me, “DD A” and "DD B"would be nice!
