Moderator: Tim White
jaa45993 wrote:In the meantime, it is my impression that the ATC would be okay for lowering a one-person load as you have tested. I don't think I would use an ATC for what NCRC considers a "rescue load" (about 600 pounds) This would include patient, litter, and litter attendant. As far as a belay, the ATC can certainly be used in the way that you are, but it does not pass what NCRC calls "the whistle test", meaning that you could not let go of it and expect it to catch the load on its own. Most of the NCRC standards are based on a full rescue with plenty of gear and help. For small-party rescue, I think the ATC would have some applications, but you could do the same things with any rappel device, including a munter hitch.
sherppa wrote:And yes, there are better ways to belay, I am just wondering if the ATC could be just another option to belay a one person load.
cavedoc wrote:I don't think there' s any doubt it can handle a single person load. It does it all the time. I'm assuming you're not letting any type of fall factor happen with static rope. For cave rescue I would be leary of it because of the dirty ropes you'd end up using. I've seen a gritty rope groove a figure-8. Using the thinner metal of an ATC with gritty rope would scare me.
cavedoc wrote:I don't think there' s any doubt it can handle a single person load. It does it all the time. I'm assuming you're not letting any type of fall factor happen with static rope. For cave rescue I would be leary of it because of the dirty ropes you'd end up using. I've seen a gritty rope groove a figure-8. Using the thinner metal of an ATC with gritty rope would scare me.
sherppa wrote: Let me show you a pic of my U-rack after 3-4 trips to Resumidero del Borbollon (217mt deep first inside pit) in San Luis Potosi.
NZcaver wrote:Time to switch to stainless bars, perhaps..?
underdog wrote:A black diamond guide or Petzl reverso could be used in an auto block mode that would prove an additional level of safety. Not sure they are reccomended for static ropes .. will have to look.
underdog wrote:http://www.blackdiamondequipment.com/uploads/black-diamond/files/MM5853_F_Belay_devicesWEB.pdf
http://www.petzl.com/files/all/technica ... 75000F.pdf
No metnion of static vs dynamic ropes in either.
Return to Cave Rescue Techniques Forum
Users browsing this forum: No registered users