New device

Discussion in 'Search, Rescue and Technical Skills' started by Jeff Randall, Oct 14, 2020.

  1. Jeff Randall

    Jeff Randall ESEE Knives / Randall's Adventure & Training Staff Member

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    We use a lot of Sterling PowerCord in our regular operations. We’ve rappelled on it with various devices but none have ever provided a comfortable ride due to the small diameter cord in your brake hand. I’ve been thinking about a new concept specifically designed for PowerCord and today I finally got around to doing a proof-of-concept sample in the shop. It gives a very smooth ride on PowerCord and is more controllable than other devices I’ve used due to the coefficient of friction between the aluminum and nylon and the degree of contact per the Capstan Equation. Total weight of the device is 3.4 ounces and it’s a little over 3” long. There are still improvements to be made but the point is the concept works and now just needs tweaking. I realize there will be those that shudder at the thought of using a 5.9mm cord to rappel or lower on and that’s fine be me. My thoughts and uses are solely my own and not suggesting anyone go outside their scope of practice or comfort zone. With that said, PowerCord is rated at 19.7 kN, so it has the potential of making a very lightweight emergency system since a lot more cord can be carried in for its weight. This is the beta model of the device. Again, there are improvements that needs to be made and once again I realize this is not for everyone.

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  2. Andy the Aussie

    Andy the Aussie Moderator of the Century Staff Member

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    If my office is burning (or an angry ex appears) I would be happy to slide down the wall on a shoelace ! For a lightweight system that you will have with you (like the .45 vs .32 argument) when you may need it I think it is great.
     
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  3. Strigidae

    Strigidae Moderator Staff Member

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    Add the skull logo and ill buy one.

    Cant wait to take a ride on it the next ropes course.
     
  4. CWB

    CWB Member

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    Ill run the pulleys for you on swiss machines
     

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