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BD QC Archive- Breaking Fixed Draws and Biners from a Dark, Dreary Cave Route

Taken from the Black Diamond QC Archives. More interesting articles can be found at - http://www.blackdiamondequipment.com/en-us/journal/climb/all/qc-with-kp-from-the-archives-1

August 16, 2006 - Breaking Fixed Draws and Biners from a Dark, Dreary Cave Route


Lately I've had some people wondering how strong their old gear is-stuff that's usually been fixed on some 'proj' for some unknown amount of time-and rather than leaving it up indefinitely for some unsuspecting sucker to take the big ride, they remove it and if/when I get around to it we'll break it to see if we can learn anything.

Recently someone stripped their old gear off the route Burning in the Hell Cave at American Fork, Utah. Now talk about a hole. That place sees more seapage, water, cold and dark than you could imagine, but even still does manage to see some sunlight. These were classic beat-up looking draws. Super crusty webbing, corrosion and oxidation on the biners, the full meal deal...

My guess is as usual: the biners are much stronger than you would think given how they look, but the webbing which appeared to be dried up and even somewhat brittle was my concern.

Remember:

• The CE requirement for new slings is 22 kN
• Biners such as these must maintain 20 kN in closed gate, though all of these were rated stronger (22-26 kN)
• Typical sport falls are in the 2-5 kN range...
• We tested these in the tensile testing machine AS quickdraws-then after the webbing was broke, we tested the biners individually.

The Results
The biners all met their rated strength. It's nice to know that in most cases even old beat-up looking biners that have been left outside for months are still burly strong. The risk with these usually isn't the strength of the biner in closed gate, rather: sharp edges of worn biners causing a rope to cut (corroded, oxidized biners having such crappy gate action that the gate won't close). I know, I've climbed on draws with 'fixed' routes at Rifle, the VRG, the RED, Maple, etc and you clip your rope in then have to manually close the gate... not sweet.
All of the webbing failed to meet 22 kN. The range was as low as 13 kN and as high as 20 kN (the average value was 17.6 kN).
Conclusion
Though not dangerously weak, the nylon webbing from these quickdraws was definitely weaker than when new due to exposure to the elements, use, wear, etc. The biners were all still burly in closed-gate testing. The problem with mank gear like this is ensuring that the gate is closed... more on this in a later installment.

Moral of the Story
Now people have been climbing on these exact draws for who knows how long, without incident-and chances are they could have stayed up there for much longer and been fine, but you must use your common sense and don't climb on fixed gear that you think is suspect, and don't leave suspect gear on routes-you're not doing anyone any favors. Don't be shy to replace old crappy gear-it may cost you a bit, but it's good karma, plus you'll be doing yourself a favor on that redpoint burn-the last thing you want to be thinking is "I sure hope that old manky quickdraw at the crux is still strong enough in case I whip..."

Out for now,
KP

CHRIS SHARMA JOINS WALLTOPIA TEAM

Together Building Sender One Climbing & Fitness Walltopia is excited to announce that Chris Sharma is now Walltopia’s sponsored athlete. Walltopia, already the world’s leading climbing wall innovator and manufacturer, will partner with Chris to push the boundaries of what is possible for indoor climbing still further. Chris and Walltopia are also thrilled to announce Sender One Climbing & Fitness, a state-of-the-art indoor climbing facility to open in late Fall 2012 in Orange County, California. Sender One is the first climbing gym owned and designed by Chris. With nearly 25,000 square feet of floor space, Sender One will showcase: Some of the largest and tallest top rope and lead climbing walls in the United States Extensive bouldering terrain up to 18 feet in height, including topout 1-button transformable bouldering and training walls Walltopia’s LED-backlit translucent Space Design walls An IFSC standardized speed climbing wall State-of-the-art fitness equipment A dedicated yoga studio The first Funtopia adventure center – Walltopia’s most imaginative, interactive climbing invention yet – in the United States “It’s great to have the opportunity to give back to climbing what climbing has given to me,” explained Chris. “This gym will be the perfect way to share my passion for climbing with the climbing community and beyond, and Walltopia is without a doubt the best company to realize this vision.” “We are ecstatic to have Chris, the world’s most iconic climber, joining the Walltopia team to help bring new ideas to the climbing industry,” said Travis Mashin, head of Walltopia USA. “We are honored to build Chris’s first climbing gym, and we are also proud to provide our best and most cutting edge products in what will be one of the finest indoor climbing experiences in the world.” Chris Sharma (born April 23, 1981) is an elite American professional rock climber, with numerous difficult and famous first ascents. He is one of the most recognizable faces in rock climbing, and has been at the sport’s forefront for over a decade. He continues to set new standards, recently capturing first ascents of First Round First Minute (9b/5.15b) and Fight or Flight (9b/5.15b). Chris finished Fight or Flight the same day he also completed Chaxi (9a+/5.15a). Walltopia is the largest provider of climbing walls in the world, having installed over 1,000 climbing walls in more than 45 countries on 6 continents. The company leads the climbing wall market because of its continuing investment and effort into developing new indoor wall technologies and safety features as well as applications of these products. Walltopia not only sees but creates new trends and innovations that make for successful and exciting climbing gyms, facade walls, and amusement and leisure facilities. Best Regards The WALLTOPIA Team