Rope Series: Passing a Knot through the MPD using the Load Release Strap | TECH TIP | CMC
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- Опубликовано: 7 сен 2015
- Learn more about CMC Rescue:
- www.cmcrescue.com/equipment/mpd/
- www.cmcrescue.com/equipment/lo...
CMC Rescue School Senior Instructor, LeRoy Harbach, demonstrates how to pass a knot through the MPD™ using the Load Release Strap. Learn how to pass a knot through the MPD in this short tech tip video from CMC Rescue!
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This is a high-quality video that shows in great detail each move, very well done, thank you, Jim.
Thank you for taking the time to post such great quality videos!
that was
awesome!!!
I suppose that instead of Load Release mechanism we can use some of haul kits available. Something like Jag from Petzl or Hauler Binner from ISC or Aztek from Rock Exotica. Actually we can even use Grillon Kind devices to deliver the load to the original line.
Yes. What about the Aztek ? The Jag is rather large.
slick
Hi great video thanks. I have a question. What to do if we suddenly need to hauling it back? Thanks cmc
Where can I find more information on the LOAD RELEASE STRAP? Hiw to construct, why it has that captured 'biner' on it? What functions does that biner have, since no weight can be used on it, due to that wee post?
I like it, seems more simple than a Radium Release Hitch!
I'm just a newbie and have a question... I noticed during your transition after you loaded up the prusik knot and disconnected your main line, the entire load (whatever that may be) was wholly supported only by the prusik. Would a catastrophe knot below your butterfly tied in to your anchor have been a good backup option?
Thanks for the question Nathan. It is important to note than in the rescue world all rescue are performed using a 2 rope system. Whether your team uses a "slack belay" like the tandem prusik belay, or a "twin tensioned system" all rescues are performed using two ropes. In this particular video (and with many publications) the belay line was "omitted for clarity". This is done so that the viewer is not distracted by the second rope.
Remember that in traditional raising systems the entire load is set onto that one "ratchet prusik" so that the pulley systems can be reset.
You make reference to a back up knot (butterfly) in your post, that is certainly an option. Whatever option you choose you need to ensure that there is some slack in the system so that your descent control device (in this case the MPD) can be removed and placed behind the knot to continue the lower. This typically means "grabbing the rope" in front of the MPD so that the load is taken off of the MPD to re position it. You could tie a butterfly knot and place it on the anchor well behind the knot to be passed as an added safety. Just be sure to untie the butterfly knot after you have passed the rope joining knot!
@@CMCPro Very excellent reply here. this video is very well done. Thank you, Jim.
those Prusiks like that hold 17Kn usually. so about 3,800 lbs. Keep that in mind.