joining lines for rappel
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I know thus has been discussed to death but anyone ever joined a 7.5 dynamic half/twin rope with a 10mm single for rappelling purposes? |
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IMHO don't use an EDK, the ropes are too drastically different sizes. Use a grapevine (double or triple fishermans), Fig 8 on a bight w/retraced 8, or a sheep bend. HTH. |
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edk is quicker and has less chance of snagging. I like to tie two back to back with a one foot tail just because. |
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I'm not convinced that tying two EDK's makes it any less likely to snag than a fisherman's. Any EDK fear is irrational. See rgold's posts in this thread. |
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Yr fine |
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Have regularly joined a 6mm with a 10+mm using the EDK. The failure mode is the EDK capsizes towards the tails. 18 inch tails. Tied so the skinny has to roll over the fat to capsize. Lately I also tie a backup knot with skinny tail around the fat tail. |
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Bill Lawry wrote:Have regularly joined a 6mm with a 10+mm using the EDK. The failure mode is the EDK capsizes towards the tails. 18 inch tails. Tied so the skinny has to roll over the fat to capsize. Lately I tie backup knot with skinny tail around the fat tail.Good photos of this in the thread I linked to above. |
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Agreed. Excellent photos in that thread. |
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Ryan Nevius wrote: Good photos of this in the thread I linked to above.Hi, do you know of any pull test data that compares the two ways of tying it as shown in the photos? And do we know how they tied it in the DAV test? Thanks. |
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I don't know of comparisons. There is this: mountainproject.com/v/edk-d… |
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jeb013 wrote:I know thus has been discussed to deathSo why bring it up again, as opposed to just using the search box? You are right, this has been covered a million times, and every answer made in this post so far has already been made by someone else in a duplicate thread. But in short, yes you can join dissimilar diameters. |
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Tell me how to search using the app. I haven't figured it out yet. |
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I doesn't matter at this point. I'm home and it worked exactly how those that responded with information said it would. |
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How do subject like this get brought up all the time. And pull testing?? Wtf are you rappelling with a cow or something lol |
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Kyro wrote:How do subject like this get brought up all the time. And pull testing?? Wtf are you rappelling with a cow or something lolBased on the average weight of an adult, male steer, it's likely you'd still be fine. |
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Kyro wrote:How do subject like this get brought up all the time. And pull testing?? Wtf are you rappelling with a cow or something lolThe image that came to mind when I saw the title of the thread wasn't a cow, but rather a DEAD HORSE. |
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Two interlocking loops from a figure-8 on each rope. |
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long live the mighty EDK! |
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TomCaldwell wrote:Two interlocking loops from a figure-8 on each rope.Yes |
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TomCaldwell wrote:Two interlocking loops from a figure-8 on each rope.The technical term for this would be a Rethreaded Figure 8, or Flemish Bend. It's important to distinguish between this and an "Abnormal" Figure 8 (tied similar to how you'd tie an overhand), which can fail under small loads. |
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The whole EDK failure under small loads thing is bogus, tests have been run and it takes a couple thousand pounds just to make the knot roll... with substantial tails you have nothing to worry about, plus less snag risk |