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A small fall on Dyneema might do more than just hurt your kidneys...
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http://www.dmmclimbing.com/video.asp?id=5 |
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Interesting. |
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This Can O' Worms has been opened before... Interesting stuff for sure. |
Jiles Perry wrote:This Can O' Worms has been opened before... Interesting stuff for sure. mountainproject.com/v/gener… I was just going to say! I thought I remembered someone commenting about the receptionist in the background! |
Pat Gioannini wrote:Interesting. Has anyone done experiments with a human as the weight rather than a steel weight (with a rope backup). I suspect all my fat mushing around underneath the harness act to slow the energy transfer onto the sling keeping the peak impact force much lower. http://www.climber.co.uk/categories/articleitem.asp?item=583 |
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Pat, yes; you can review the drops on 2009 ITRS paper to see how a human composition compares to a rescue randy and differs to steel. It should offer you a more realistic picture of what happens. |
Mark Nelson wrote:Pat, yes; you can review the drops on 2009 ITRS paper to see how a human composition compares to a rescue randy and differs to steel. It should offer you a more realistic picture of what happens. Holden, May, & Farnham. 2009. On the Utility of Rescue Randy Mannequins in Rescue Systems Drop Testing itrsonline.org/archives/#2009 Thanks, this is what I was thinking would be more realistic. |
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i would be interested to see some test results on a system mimicking a setup similar to a roped fall onto a piece of gear connected using some sort of quick draw (or "trad" draw). how much would the rope reduce the peak forces onto the primary system/piece of gear? |
