Yes Totozero, it is clear and quite right, if your intention was to represent Sylvain’s knot in its mirror form as shown in Abok .
From what I understood, the right knot is the same than the Sylvain’s one. And the left one is almost the same, the only difference is the way the running part is inserted to make the last locking loop, by doing it on the loose loop side instead of the standing part side. But I may have missed something.
Indeed, Alan performs the test using slightly different loopknots, and the difference lies in the polarity of the returning loop.The right knot (Sylvain) encompasses a Z loop, with the tail located under the first inserted returning line, while the left knot encompasses an S loop, with the tail located over the first returning line(note that i made a previous reference about eight profiles in total).
The test ended at 1120 kg, but is it because the knots were about to break ? or you did not want to damage your line ? It also seem it was a bit hard to untie.
The knots were not about to break, that would occur right about 2266 kg, 65% of MBS, but you were quite accurate to notice that the right knot was actually a bit more challenging to untie.
So, for what reason the left knot appears to be more releasable than the right knot?Is it because the left is eyeloaded while the right(sylvain) is SP loaded?Or maybe the Sylvain’s topology which places the running end under the returning line, causes heavy core constriction?
If the experiment was to be repeated with the line just reversed with no other change, perhaps i would be able to answer these questions, but i would certainly ask for Alan’s opinion, who’s very experienced with such stress tests.