tensionless anchor
- Thread starter Heg
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PCTREE
Treehouser
I really don't see an issue with that. Sure the safety nazis will harp about side loading the biner but I really cannot imagine you breaking it with your body weight.....
Altissimus
TreeHouser
Agreed
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- #4
Thanks for the feedback guys. I was swinging around a couple feet off the ground, and I don't think side loading will happen. The fact that it's only 15 ft up, and thus I can always see it, makes me comfortable. Every 5 ft multiplies the torque? https://www.youtube.com/watch?v=lLYiv0F3cSY
RopeArmour
TreeHouser
I am in the habit of using two biners with gates opposite of each other.
Free the mind
let it ride
Free the mind
let it ride
Raj
TreeHouser
Steel biner here, dress the wraps nice and close together, but that's how I would roll it. That's how it was taught in the Canadian army to rappel or lower supplies/casualties over a cliff.
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- #7
Good advice, agreed! I'll put another in there.
emr
Cheesehead Treehouser
I recently read that someone did pull tests on opposite and opposed biners and they found that either the biners or the rope broke easier than the same setup with a single biner. I wish I could remember where I read that.
MasterBlaster
Administrator Emeritus
It looks good to me, brother. As long as you don't weigh 600 lbs...
RopeArmour
TreeHouser
Try the book On Rope Smith Padgett
Burnham
Woods walker
No worries with your original pic, imo. But if you get to thinking too hard re the biner sideload issue, just go with a running bowline there instead.
emr
Cheesehead Treehouser
Steel delta works great for me.
lumberjack
Young man on the go
What's the purpose of the biner over the knot anyways? Seems like futzing around.
That video is also a wonderful display of futzing around.
That video is also a wonderful display of futzing around.
squisher
THE CALM ONE!!!!
Video?
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- #18
Great book, I own it but admit I've only skimmed bits n pieces. Page 272 is relevant to this thread.
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- #19
Seemed like a good idea at the time. I dunno.
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- #20
That was exactly what I was thinking, and I don't know squat. Logically it seems like any more than 3 wraps is really not adding any safety factor, IMIO.
sawman
TreeHouser
2 wraps runnig bowline here
SouthSoundTree
Treehouser
I'd go with a regular running bowline for life support. The tension less anchor avoids pulling on the knot and bending the rope. There is tension on the knot and a bend, losing full strength of a straight section of rope. For hard pulls on big trees, at state parks, a couple Screw drivers stuck into the bark helped hold the half inch Amsteel in place while double wrapping big boles, then a double hole/ jacked bowline with no tension. Feed any slack back around and to the truck. Would sorta look like a letter P with the bole in the hole of the P, with two turns.Hi Treehousers
Is there any danger of using this, versus a wrap 3 pull 2? I looked it up in the Tree Climber's Companion, and it don't mention either one.
It's only 15 ft high, just to get to my zip line. Thanks!!
Obviously smaller stems don't need screwdrivers, and Amsteel would melt with sloppy dressing.
You have gained nothing with your set up, no offense.
My first intro to the TA was for an adventure program, grabbing the technique from rescue techniques, 6 wraps and clip. Over kill, but hard to screw up for newbies, or rescuers in a high pressure situation.
RopeArmour
TreeHouser
http://www.mountainproject.com/v/tw...ibly-weaker-than-a-single-carabiner/108434975
This is interesting. The many times I have used opposite and opposed, the concerns have been side and gate loading and potential for accidentally opening a gate. Not so much in the situ in the pic
This is interesting. The many times I have used opposite and opposed, the concerns have been side and gate loading and potential for accidentally opening a gate. Not so much in the situ in the pic
- Thread Starter Thread Starter
- #24
None taken, I just appreciate the feedback, although we need a smiley for "way over my head". Bottom line, I don't know if I was really trying to 'gain' anything. I just want to be confident that it's not going to fail on me.
@RopeArmour - interesting indeed. As one commenter put it, "There are MANY things that will kill you, this aint one of em ... But it makes for great intraweb arguments"
lumberjack
Young man on the go
The only time I worry with tension less anchors is when dealing with high modulus ropes as they lose a lot of strength in knots.
Using a porty with them for an attachment point is an example of a low stress termination for small diameter ropes.
Using a porty with them for an attachment point is an example of a low stress termination for small diameter ropes.
