SRT anchor belay system

Anyone who has climbed on a system like this(SRT,FFC), do you find that the weight of your rope makes it harder to push up the ascender the higher you go? I experienced this and so tried taking it with via backpack. It helped, if you don't mind carrying the weight i guess.
121515-SRT008.jpg
 

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R and T

RE your first photo (with the short prusik): I think you'll find that, once the climber has ascended some distance, there will be so much tension on the line that it will be hard to release that system. Look at the discusion here :

http://www.treebuzz.com/forum/showflat.p...=true#Post57009

that talks about using trunk wraps and a load releasing hitch. More discussion here:

http://www.treebuzz.com/forum/showflat.php?Cat=0&Number=91780&an=0&page=0#91780


using the same photo that started this thread.
 
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How long of a rope do you use when setting up an srt belay?

I'm just curious cause if your climbing an 80-90ft your gonna need a fairly long rope to have a full belay if your at the top when you need to be lowered. In an emergency situation.

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I'm pretty sure it's 2xs.
 
Thanks, i've been reading other threads and it looks like some guys tie the ends together to create a continuous loop. But i have yet to figure it out. Maybe someone can provide some pictures or better yet video. I've gone over all the other posts i could find on this topic and viewed all the pictures, i just can't grasp how it work.
 
You only need 2x height of TIP. But you need to think of a way to swiftly pass a knot through an anchoring device - Petzl do a device to pass a knot - Tuba I think. I use a trunk wrap technique.

My SRT is for access only usually - so I only want a rapid rescue descent in case I get swarmed really. No point getting complex with knot passing there. Its also quick to set up. Only a prussik and two krabs, Backed up with a knot in the line.
 
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Here's a few I've been playing with so far
121505-SRT011.jpg


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This is how I like to attach my anchor line for a floating false crotch (ie Pulley). I've been using a Valdotain (no braids) with as many wraps as I can get with the eye/eye prussic, just because its an easy hitch to "tie."

I'll actually use the same biner attached to the eye/eye as a marlin spike in my stopper knot.
 
R&T,

One small detail to consider...take a look at the way that your biner is clipped around the rope. If you clip it 'the other way' the gate will be shimmed just a little off the trunk reducing gate loading.

It's my preference to have at least 1.5 turns on the trunk before clipping the belay sling onto the upper rope. Two full turns is even better. By doing more turns the rope stays more fair and is less likely to slip up the trunk when lowering.
 
I pulled out my long KMIII today and the previous anchoring system fell aside it. I winced. I can be anchored and attaching the ascent hardware in the time it takes just to get the old system attached to the tree.
 
i have been climbing for a long time and have gone through my gadget romance some years ago and come back to a bit of a minimalist approach (that saddle was getting heavy!). i have begun to pride myself in climbing in the grey area between tech crazy and bare bones, an area i feel has more emphasis on practicality than anything else. but i do get lazy. like bare crotching cuts at the expense of my ropes and the tree. maybe it's time to get my gadgets out of the basement. you guys are inspiring!

but i don't know if i get this SRT set up you guys are talking about. does the ground guy have to belay the line as you climb? or is it used at times of more dangerous cuts, like roping out a huge top?

i kinda thought i was a pretty technical climber, but a lot of these posts are beyond my experience. i had to go cross reference some things to the sherril catalogue to see what a croll was etc. i have used ascenders and like them. i'd like to get another double handled petzel, as mine is MIA, but the 'ol footlock prussik is always handy.

point is, it's been about 5 years since i was up on all the latest. it seems like a lot of new things have changed. but in the meantime, any clarification on this SRT would be great.
kevin
 
Kevin,

Look in the Articles section, the link is up at the top. I wrote an SRT article a while ago that explains SRT. Many things have changed since I wrote the article but the basics are there.

There is SO much SRT discussion that it would be really difficult to sum things up for you. The best way to learn about SRT is to read through the archives. That's going to take some time and it will be well spent. Think of it as continuing education.

There are some threads on the Unicender which is the ultimate SRT tool.

Plan now to attend the ISA conference and TCIA Expo. It's very likely that I'll be doing SRT demos at a rope manufacturer's booth at both shows. Stay tuned!
 
Kevin,

Static line isn't mandatory. The most important thing to consider is having a rope that is the right size for the tools. Most of the ascenders and other tools are made for 11mm lines. It is VERY important not to use a rope with too large a diameter with any camming tool. If the rope is too large the fulcrum aspect of the cam is changed and this changes the grabbing power of the cam.
 
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