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sapling slinging

Original Post
Michael C · · New Jersey · Joined Jun 2011 · Points: 340

I've come across my fair share of saplings and baby trees while climbing and usually sling them with a basket hitch. But I got to thinking that I could very well end up taking a fall on a triaxly-loaded biner.

How do you normally sling saplings on lead? Girth hitch?

Thanks,
Michael C

joshf · · missoula, mt · Joined Oct 2007 · Points: 790

girth hitch, or just loop the sling and clip both ends.

Allen Corneau · · Houston, TX · Joined May 2008 · Points: 80
joshf wrote:girth hitch, or just loop the sling and clip both ends.
That is a basket hitch.

Michael: if your biner is tri-axially loading then use a longer sling, that way the angle between the left side and the right will be more acute.

I use a basket hitch if possible but will use a girth hitch if really needed. (Girth hitching reduces the strength of the sling in half while basket hitching doubles the strength.)
Avi Katz · · Seattle, WA · Joined Sep 2010 · Points: 260

I'm no engineer but I imagine that any force strong enough to cause a tri-axially loaded carabiner to fail could easily pull out a sapling.

wereallgonnadie

William Sonoma · · Unknown Hometown · Joined Dec 2012 · Points: 3,550

Just to add: looking back I have always girth hitched slings around saplings and chockstones. I knew girth hitching took away some strength but half...wow. I still am girth hitching however; its worked well and even at 12kn (half of the average strength of a dyneema or nylon sling) it'll catch me. If my fall will create more than 12kn then I'm plugging gear (to back up sapling sling) or not climbing higher with just a sling around a small sapling.

If my fall will generate more force than my rope is made to handle you can take this lead...

Jeremy Riesberg · · Unknown Hometown · Joined Jun 2012 · Points: 5

I'm going to start basket hitching my saplings just to decrease the impact I have on them. The way I see it is, if my fall can break my tri-loaded biner, that trees gone too. At least this way the tree had a chance to stop me, or at least slow me down.

John Husky · · Unknown Hometown · Joined May 2011 · Points: 5

Don't sling saplings, maybe? They are not very strong?

NYClimber · · New York · Joined Jul 2011 · Points: 85

If I have to sling a sapling I always want backups - if it's used for a belay of course.

I just read this week in-fact that the girth hitch will weaken the sling by like 50%! I was shocked. I know knots reduce the strength of anything that they ARE tied into - but I didn't know it was THAT much vs. the basket hitch. I like a girth hitch tho b/c it draws up tight around the base of a tree, etc. and only gets tighter when loaded and won't 'ride up' the tree.

I am always careful that I don't wanna harm nor kill a tree as well....

cdec · · SLC, UT · Joined Jan 2007 · Points: 654

loop the sling tie the ends with an overhand.
This also creates redundancy.

William Sonoma · · Unknown Hometown · Joined Dec 2012 · Points: 3,550

NYclimber I was also blown away to hear that! 50% is a lot. Now Michael said sling a sapling on lead, my experience says on lead the only way ill be able to (attempt to) sling a sapling AND tie it off with 1 hand into an overhand is if I'm on a really nice ledge/stance. For me the basket (never used but am now considering) or the girth are the only feasible on higher moderate and above AND on lead. If possible I always tie an overhand/8 when creating a belay.

NYClimber · · New York · Joined Jul 2011 · Points: 85

I didn't read it all but that's what I heard...

Hard to see the details on their test charts - but here is their article:

blackdiamondequipment.com/e…

bearbreeder · · Unknown Hometown · Joined Mar 2009 · Points: 3,065

for those worried about girth hitches ... just think of all those people who girth hitch to their harness purcell prussics or those nylon (because of the "deadly" dyneema) slings and expect to be caught if they take a fall on static material

with rope in the system and on good fully rated slings ... im not worried

Nick K · · Denver, CO · Joined Jul 2011 · Points: 30
bearbreeder wrote:for those worried about girth hitches ... just think of all those people who girth hitch to their harness purcell prussics or those nylon (because of the "deadly" dyneema) slings and expect to be caught if they take a fall on static material with rope in the system and on good fully rated slings ... im not worried
I'm stunned that this many people weren't aware of the 50% strength reduction. I'm not sure there's enough panic going around.

Gentle mockery aside, if I was going to sling a sapling mid-route, I would absolutely girth hitch it. Same goes for chockstones and chicken heads. Horns would probably just get the sling looped over them, as I wouldn't want the hitch to tighten itself off.
NYClimber · · New York · Joined Jul 2011 · Points: 85

I agree. I like the girth hitch myself and will continue to use it as well. I'm not worried either!

mattm · · TX · Joined Jun 2006 · Points: 1,885

Those BD Tests are for joining two slings together, NOT attaching a sling to a solid object. Those 50% reduction figures aren't applicable to slinging a sapling.

A quick google search lead me to a confined space rescue book that quotes a 20% loss of strength in anchoring situations.

HOW you rig up the girth hitch and WHAT you rig it around will probably effect strength. A narrow and smooth object with likely have more loss in strength vs a large diameter object with rough texture (bark). The larger radius bend and rough texture (friction) reduce the load on the hitch.

You also have to be sure you're not adding a "pulley effect" in your girth hitch setup which will also reduce strength.

Bad Girth Hitch Setup. The sling creates a pulley effect greatly increasing the load on the webbing. - Image from Long/Gaines Climbing Anchors

Better Girth Hitch Setup. There is no pulley effect and the friction from the tree bark helps take some of the load off the hitch itself. - Image from Luebben Anchors book

I almost ALWAYS girth hitch trees etc. The weakness is likely in that sad looking twig sticking out of the rock and NOT how I rig my sling.

William Sonoma · · Unknown Hometown · Joined Dec 2012 · Points: 3,550

Exactly Matt! If it was good enough for Leubben it is good enough for me! That's a great book.

Ryan Williams · · London (sort of) · Joined May 2009 · Points: 1,245

Is this a real thread?

William Sonoma · · Unknown Hometown · Joined Dec 2012 · Points: 3,550

Your looking at it dude. Is it real? That's the point of these forums (not that you can always tell), people ask a question, other people answer. Pretty straight forward. Not everyone is a walking climbing textbook nor has everyone experienced all of climbing and every situation it can present.

Creed Archibald · · Salt Lake City, UT · Joined Apr 2012 · Points: 1,016
Michael C wrote:I've come across my fair share of saplings and baby trees while climbing
Are you climbing near a tree farm or garden center?

Whenever I find a sapling or baby tree, I rip it from the soil and fling it at my partner.
Creed Archibald · · Salt Lake City, UT · Joined Apr 2012 · Points: 1,016

Like this:



Flinging the sapling any other way could reduce one's power and distance by up to 50%!!!
nbrown · · Unknown Hometown · Joined Nov 2007 · Points: 7,719

Definitely one of the smallest rap anchors that I've ever used... I've actually used it a bunch of times, and surprisingly it's quite solid for it's size. Also, I know it's better not to girth hitch this one, but that's how it was set up last. Don't worry too much about the tree either, we just fixed a better anchor in it's place today - give that poor thing a break.

Rap tree!

Guideline #1: Don't be a jerk.

Trad Climbing
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