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failure point on F111 fabric and Darcon lines
What are the opening shock strength limits on BASE canopies? What is the failure point on the canopy fabric and darcon lines? How much wear /number of jumps affect it?
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Re: [VictorSuvorov] failure point on F111 fabric and Darcon lines
In reply to:
What are the opening shock strength limits on BASE canopies? What is the failure point on the canopy fabric and darcon lines? How much wear /number of jumps affect it?
In transmitted force over time? you need to be a bit more specific. Suffice to say that one would easily be in pain without damaging the canopy and most likely by the time one did damage the canopy because of too many G´s one would be injured or worse. On BASE canopies I haven´t seen any fabric failure points but I have seen wear points. On Dacron lines the failure point would be just below the cascade where the inserted line terminates although there are a few wear points that should be examined every pack job.
Hope this helps.
take care,
space
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Re: [VictorSuvorov] failure point on F111 fabric and Darcon lines
Dude those are a lot of Q's for 3 sentences.
Space is more than correct but I will add to it just because I feel Long-Winded today.
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It's just like a skydiving canopy to what the human body can endure without losing consciousness (and-or) breaking bones on opening shock.
The Tensile Strength on a (individual) on an average is 550 lb. in the Dacron.
Breaklines and the loop (LRT set-up) on the risers Is much higher. Usually 1000 lb. spectra on the LRT set-up.
Those big beefy break lines are about 1500 lb.
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I think that UV damage is the worst enemy for F-111. + dirt and grit in the fabric weave. It's a killer.
F-111 fabric tensile strength ? I don't know. If you poke a hole and start tearing it . Its not that tough but I have seen people hanging suspended by only the nylon fabric itself.
I have seen it tear quick and I have seen it get drug through the dirt and rock and slammed in a car door and still no holes.
Average # of jumps on a BASE canopy before it starts getting shabby/retirement, is about 300 - 800 jumps.
There is no set #. it is just in the amount of abuse the BASE jumper puts it through.
A good rule of thumb would be NEVER Lend your new BASE canopy for a friend to take out of town for a couple days.....Wink
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There is much documentation of Canopy opening shock bending and destroying Hardware on Riser and Harness container systems.
You put that all together combined with all the reinforcing/support tape and stitching that ties the line to fabric. The human Body is just a stick of Butter in comparison.
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