foam-n-fibre wrote: ↑
Sun Jan 13, 2019 12:34 pm
I've seen Q-lines break at the knot if a careless figure-8 knot is used where the parallel lines are allowed to cross inside the knot. If you take the time to get the half twist out of the figure-8 knot which normally gets created when you fold the line in half and tie the knot then I think the knot is much stronger, and I've never seen or heard of one like that failing.
Just to confirm my findings from over 15 years ago I have just been into may garage to repeat the "SNATCH" test.
standard Q line against current 12 month old north/Duotone line.
using a 2 clean half meter lengths from the centre section of north flying line, one with red trace and one with black trace thread.
and then just one half meter length of standard Q line.
I looped both ends of each line with a bowline knot.
fixed all lines to a heavy fixed post just using a short length of 6 mm old Powerline.
Instead of using a bar I used a standard lump hammer, and looped the lines one at a time over the handle and up against the 4 - 5kg steel lump on the hammer.
this is where I say that I really believe everyone should repeat this simple test, it will really make you think about looking after your lines with regular inspections, remember these lines are in perfect condition.
fist up, North line,
I raised my arm half way up and used about half of my arm power to pull quickly in a downwards arc.
snap, so easy, too easy, fluffy fraying at the point of failure just below the bowline, (photos to follow)
swapped over to the other length of North line and used much less power,
increased the power a little and -snap!
ok, so now the Q line,
started with the same half power snatch and-nothing, then full power and- nothing
Much later after many hard nasty looking snatch backs I did manage to snap the Q line, and it went with a sort of bang as by this time I was bending my knees to brace back against the hard pulls back.
the broken ends looks very different, and the other end of the Q line showed stress marks resulting from the many snatch-backs it endured before giving in.
for now I will be staying with the Q lines,
well I would say that anyways, as I have converted all my 3 click bars to Power Q line at considerable cost.