Originally Posted by estarzinger
Interesting idea. I can easily cover the lines for the shrinking but I am not sure how well that will protect them from the heat. Spectra melts at 150c and shrink wrap shrinks at 100c. Thoughts?
Yes, I decided I did not want to do that - might create a stress riser and weaken the tubes. I may just spray on a little contact cement - can't hurt.
Useful perspective. Quite different than the typical marine rigger thought that one should avoid knots in high modulus line at all cost. Not sure why the difference. The difference in perspective - thoughts?
I actually use the fisherman to make small spectra loops on the boat, when they are too small to make the bury. I have never had one break but don't use them in highly loaded applications. But the fisherman can jam under load and be hard to untie (in my experience), so I don't think its the knot.
Don't think that helps, as the splice will not pull thru the stanchion holes, which is the objective.
Yes, exactly. I have a decent radius . . . 32mm tubes and 8mm (top) and 6mm (bottom) lines so I have 4x for the top line, which is just about right. So, my 'only' concern was whether the 'knot' creates a stress riser where it joins the loaded part of the line.
Yes, the knot
will jam if under high load, but why should that happen? Lifelines
should go many seasons without a load high enough to cause jamming. Perhaps wrapping the line around the tube a few times would reduce that tendancy. My concern is that with Amsteel a knot that is both jam-proof and slip-proof may be hoping too much. I just don't know.
Climbers tend to use knots for 2 reasons: a splice on the end of a rope
would make it impossible to pull the roe through gear
or to pull it up a crack-ridden cliff without jamming; rigging
often has to be modified in the mountains and splice are rather permanent.
However, where permanent conections are acceptable, sewing or splicing are prefered because they are more compact than suitable knots, not so much because they are more secure. In my mind, splicing is important where the ultimate strength of the line will be tested--standing rigging--but not so much were failures are by chafe. Climbing ropes don't fail at knots or at random, they fail where the rope
runs over a sharp edge.