Quote:
Originally Posted by Brion Toss
As the above responses indicate, there are a lot of options for lifeline tethers, so many that I believe we have bumped the original question: webbing vs. 3-strand. ...
As for length, the shorter the better.
It also happens to mean material preferably stronger than 6,000lbs, which is a scant minimum in a shock load,
|
I'm surprised I didn't way back remark at the focus on strength, which I think is quite
misguided: the BODY cannot take much more than a ton, so strength beyond that is
all academic.
As for shock loads, that is a factor depending upon the material choice: taking typically
static webbing ensures higher shock, less energy absorption; taking typically elastic
(hard- not soft-) laid rope will lessen impact forces. There is some evidence in lanyards
used in caving, e.g., of the energy absorption of a Strangle Noose hitch (as compared
with a splice); but if a knot's bulk is an issue, well, just rely on material stretch.
Another aspect could be vulnerability to cutting? --rope is usually better, here.
.:. Seems like a decent, 7/16", half-inch firmly laid nylon rope should work fine,
spliced or seized or tied.
--dl*
====