DMM Drop tests on equalised slings (as you’d use in rigging a belay)

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DMM have done some more drop tests on dyneema and nylon slings, but this time looking at how they perform in an equalised belay, as we’d often use to set up a couple of anchors. The impact forces reached in the drop tests are huge! Especially when you consider you’re unlikely to be walking away from taking a hit of more than 6kN (according to an HSE study on the survivability of falls into harnesses).

The tests also illustrate the pit-falls of setting up a self equalising anchor, as they did some drop tests with one of the anchors failing. Worth a look:


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