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Lightweight Rope
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Home › Forums › Off Piste › Mountaineering & Alpinism › Lightweight Rope
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Apr 20, 2009 at 9:34 am #1495609
Thinner ropes = shorter life span yes. For alpine use and such, ropes either are used little or they are retired relatively soon. It really depends on your use. For a comparison, simply google "ice climbing rope life". In ice climbing, you are usually using much thinner twins or double ropes. They are usually quite light.
If you are considering being an scenario where a fall could occur, dynamic rope is mandatory. If however you are simply pack hauling or rappeling static is sufficent. The biggest problem is how to control your descent with thin ropes, it becomes very difficult to say the least which requires more gear, perhaps enough to offset the weight advantage of lighter rope. For instance, I have 3/8" amsteel dyneema rope (suitable for ATV winch ropes @ ~ 6000lb tensile strength). The stuff is so light it floats on water, but it's so slick controlling a rappel would be challenging with minimal gear and no standardized belay device is designed for rope that small.
Apr 20, 2009 at 4:21 pm #1495720> it's so slick controlling a rappel would be challenging with minimal gear
Yeah!
I have a good length of Vectran which is plenty strong enough for anything. Just as Spectra is much stronger than nylon, so Vectran is much stronger than Spectra. In fact, they make tethers for astronauts out of it.But it is thin and slippery. I could use it fort pack haukling, except that I would have some trouble gripping it. Abseiling on it – couldn't brake well enough, and it would cut the descender in half.
Good stuff, nylon. The right mix of properties.
Cheers
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