Hanging from saddle

Tom Dunlap

Tom Dunlap

Here from the beginning
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Time for a new thread...

I'd be curious to get some information, and pictures if possible, from every climber on the forum.

It would be interesting to see what position a climber takes if they go limp in their saddle. Does your saddle support you with a head up, level or lower than your hips? As I understand work positioning saddle design it is supposed to support the climber with head above the hips. but that might not always hold true in the field. Body dimensions and physical build would be highly variable. Heavy boots would add ballast :)

If you post a picture, take a minute to crop the picture and set the scale down to about 600x600 level. Also, let us know which saddle you're climbing in.
 
Tom,
The below link shows diagrams of dancers and in each case their center of mass is above their waist. Arborist usually have larger upper bodies than dancers further throwing the center of mass upwards. Because the tie in point of most arborist saddles are below the waist it looks to me like most climbers are going to invert when relaxed.

http://www.faqs.org/docs/Newtonian/Newtonian_56.htm

Notice how these anti toppling fire and rescue saddles have their hanging attachments at the waist. These attachments are way higher than arborist saddles.
http://www.gemtor.com/rescue.htm
 
But...the angle of repose will be different because of saddle configuration. Depending on where the saddle rides and the length of the bridge the same person could hang differently in a variety of saddles.
 
Where the saddle rides is important but the length of the bridge should not be a factor. Where the bridge connects to the saddle and that relationship to the wearers center of mass determines if the wearer is top heavy or bottom heavy.

I will get some pics in my Butterfly later tonight. I've had enough of google for a while.
 
Guys you forget that there will be additional weight due to added gear, chainsaw, handsaw, biners, laynard and whatever elese an individual job may require.

These would also change the center of mass along with body type.
 
I'll put my money on inverting, and also bad would be hanging horizontal with your back facing the ground supported by your pelvis/lumbar of your back.

There has been argument and HSE apparently (UK) has been wanting full body style harnesses with chest attachment points ... but that is useless for manourvrability and work positioning in what we do.

There's a lot of research yet to be done in this area, also there is harness induced death which can occur within minutes of hanging in a harness.

Pics from members would be a good start, interesting thread this will be.
 
My Butterfly is configured to a very low center of gravity. It pulls mostly at the bottom of my legs. It would invert me in a big way. I'll hang a huge saw on my harness and I'm bettin I still go over.
 
This seems like a good thread to do, when my new saddle saws up I will try it out to help Tom in his Laws or Arborist Physics Thread. Hoppfully in a couple of days.
 
As best as i can simulate heres what i look like hanging in my saddle, its the austria duo, with shoulder straps attached.
 

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