World's largest rope swing...


Well-Known Member
Nov 6, 2009
Poser said:
You have to account for rope stretch with climbing ropes. Usually, the rope will have the most elasticity on the initial falls and then stretch out a bit to very predictable lengths. If you are going to set a intentional jump like that, it is wise to start with some very conservative jumps and then adjust the rope to the desired lengths.

I'm guessing that the person who did this setup was lacking in experience with such matters and probably did not account for rope stretch, or at least the appropriate amount of stretch induced in such a fall, and the jumper died as a result of the rope elasticity.

Nylon, polypropylene, and other blended ropes exhibit EXTREME elasticity. At work, we can often get as much as 100% stretch at only about 10% of its breaking load. Trying to obtain a break value is nearly impossible on some materials (namely nylon), because our test cylinders run out of stroke before we can even get close. I work with this stuff on a daily basis, and it's still surprising how much stretch there is in it.

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