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I think what you're doc said is kind of extreme Ron, but you DO have to get ahead of dehydration and STAY ahead. Just water isn't enough though, when you sweat you lose minerals and they have to be replaced or you might find out just how much whole body cramps can hurt. While you're...
I'll give it another try, but even when I did a simulated foot lock, i.e. double handled-ascenders, Pantins on each foot, it was still hard. Of course, hard is relative so I'll expound by saying it's harder than a frog or a RADS.
I'll concede certainly that technique can make a difference, but...
First this quote from Treemagineers website with regard to foot locking:
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...Disadvantages include the requirement for refining the technique over time and the high physical demands placed on the climber...
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And that's exactly what I've found every time I've tried it. I have...
When I went to Pauldin, AZ to Gunsite for a week of training, it was so dry, you couldn't take a shower - the water evaporates before it gets to you. Well, maybe it isn't quite that bad, but by mid-week my sinuses were messed up.
We'd be in the sun shooting all day and you'd hardly see a sign...
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Here's the bottom line: The doctor said that one can NOT drink enough fluids to make up for what you sweat out on hot days!!!
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That is not good, especially here. So, no matter how much one drinks on "hot" days, dehydration is inevitable?
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On hot...
Re: Break-testing the loops
Hey southsoundtree,
This was not a break test; I just took loaded it to 450 lbs.
Now in my other Zeppelin bend thread, Pulling a Zeppelin bend to failure... I did break it. Since I don't have a way to break test non-knotted rope, I can only go by the manufacturer's...
I had about 30' of unsed 10mm PMI EzBend rope laying around so I thought I'd put a ZB in it and pull it to failure.
Nothin' really fancy here, just measure the force it takes to break it.
The ZB failed at 3800 lbs in 10mm PMI EzBend rope. This rope is rated right at 6000 lbs. That suggests...
I had something similar happen to me - but I know what it was - dehydration. While I was in the tree, I drank my Camelbak dry and kept working. The heat and humidity caught up with me. I was on a RADS and pulled the lever and started down. I radioed my wife (close by) to bring me some water and...
I agree; I'm thinking we need to establish some static data first. If the knot weakens the rope too much, we may prefer not to use it and then the dynamic tests would not be of as much interest.
I'm about to do a pull to failure in a few moments, IF I can get the tensile machine to cooperate.
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I pulled one today with me (185#) and another guy (~160#) on a 5:1, to lift a tree off a roof. I feel certain we had nearly 2000# on it and lifted a 15"dbh red oak no problem.
I untied it with my hands in about a minute. It's a solid knot when you TDS it.
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Just out of...
Re: The zeppelin loops
Hmmm, I have used it as the knot to close a sling/prusik loop. Haven't seen anything about the Zep as a loop knot, i.e. bowline, F8 loop, etc. The only thing I've seen is the statement from LOAL that the knot goes unstable if a tail is loaded. I'm pretty sure that is in...
Yes, others have had this problem, or similar with CMI Expedition ascenders. Because of the locking mechanism on a CMI Expeditions, as you described, they are not that hard to unlock and release the cam. I would not use a CMI Expedition in a tree, and probably not anywhere else for the very...
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Moray:...How did you manage that PIP showing the spring scale? Separate camera?...
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Yep! I had one on the scale and one on the knot. Because of movement, I was constantly 'chasing' the scale and knot until things settled down. I had some disappointment with my editor in that...
The video link is below; it just uploaded (11-May-2010 @ 8:00pm) so it's still being processed. AHHHH - the video is up as of 8:13pm. The quality may improve with further processing but it looks pretty good already.
Be sure you have sound on.
I wanted to test a Zeppelin under heavier loads...
Re: The zeppelin loops
Ahhh, I use the loop shown in the upper right of the pic regularly for prusik loops. I thought you meant like an eye in the end of a rope, and I hadn't seen that.
It is interesting that Dr. Merchant, in his book, life on a Line, says the Zeppelin bend can go unstable if...
Re: The Zeppelin bend... SOME THOUGHTS
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Very pretty knot! I think I will test it, and the loop version as well. I am much more likely personally to put a big load on a loop than on a bend, so it will be interesting to see how the loop behaves.
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I musta missed something -...
Re: Another inch and I wouldn\'t be posting anymore....
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whats amazing about this is that you caught it on video! I feel Like I have a few "inchers" in my life but never one that is recorded that I can look back and analyze....
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I know exactly what you mean. I'm sure most of...
Re: Another inch and I wouldn\'t be posting anymore....
flyingsquirrel25,
Good point. However, I wasn't doing tree work - I was merely climbing a rope and practicing a rope technique. But still, your point is valid.
The Texas and Frog climbing systems have built in backups if the tether to...
Re: The Zeppelin bend... SOME THOUGHTS
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Ron
As you and Blinky point out, the 'ZB is a cool knot' but without a history in life support I was never quite 'comfortable' with it, either. Soooo ... maybe there's a little work that can be done to change that ... <u>start 'building' a...