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superstu

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Funny you should try to throw that link back at me since you dismissed it as propoganda a few days ago.



1. The link in now way supports Technora, it simply states the obvious chemical structure and similarity to nylon.

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What makes you so sure you or Mel know what your talking about?



2.Chemistry degree from UNC helps. MEL happens to be an Nuclear Physist last time I checked. So I am sure he has more than enough know how to support his statements.

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Did you know that the Icaruse factory team at perris has been using HMA on their canopies with no problems?



3.Did you know that team Evolution has the same thing too? Yes I knew their competition canopies are lined with HMA.

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You have not shown any real world experience as to why it is unsutible for this application, you're just running around screaming "the sky is falling". ***

4. I haven't said one thing about the sky falling...
Usually it's people falling out of the sky...

We had a discusion going her, try to remain civil.

Oh ,and think man, think.***

Try spell check, ohh and who's ass?

~G~

"The edge ... there is no honest way to explain it because the only people who know where it is are those that have gone over"

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1. The link in now way supports Technora, it simply states the obvious chemical structure and similarity to nylon.



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Try spell check, ohh and who's ass?



You be the judge.

OK Moderator(s), you may delete my post now since it is off-topic and very un-helpful. I just couldn't resist:ph34r:. Man, it is fun to be bad:ph34r:.

Derek

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Well I can see this discusion has reached the end of it's usefull life.

It's wonderful to have brainiac's like you so willing to dismiss something, so that the simple mortals in this sport are saved from themselves.

Spell check? Great, I'll keep that in mind. When you've dealt with your insecurities, and ego, and want to come back and discuss the everyday use of the products at hand, I'll try to use the spell check.

You still have not proven or disproven either the sutibility of Vectran, or the unsuitibility of HMA/Technora.



Oh and errr.....
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So I am sure he has more than enough no how to support his statements.



Proper usage would be "know".
----------------------------------------------
You're not as good as you think you are. Seriously.

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This is a fine quote on UV resistance:

"(1) Resistance to light
High tenacity fiber has generally low light resistance. The strength of Technora can be lowered to a half when exposed to sunlight for about 3 months. For applications directly exposed to sunlight, the surface of the fiber is recommended to be covered by some other materials."

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1. The link in now way supports Technora, it simply states the obvious chemical structure and similarity to nylon.

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Try spell check, ohh and who's ass?



Busted...Fair enough...

But JP you have no fact base data showing Technora is better than vectran.
My point is they are both destroyed by UV at least with Vectran you can see it's wear. HMA/Technora is a stronger line but it is even more suceptible to UV. And breaks down quicker from my reviews with it.

I just dislike the "sales man" song I have been hearing from your post with no scientific data supporting it.
The link you gave me was basicly an add from the company to buy their product...

I will let sleeping dogs lie...


~G~

"The edge ... there is no honest way to explain it because the only people who know where it is are those that have gone over"

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But JP you have no fact base data showing Technora is better than vectran.



Neither Chemist nor Nuke Physicist am I... only a skydiver, sorry to say. (But I do have technical training in many after hour activities!)

In the use of suspension lines (even those used during Daylight jumping where UV is plentiful), combined with other, perhaps more important wear elements such as sand and dirt... Our experience with HMA shows that it will outlast Vectran. How many Vectran lined canopies are in Eloy or Perris with 1000 jumps on the lineset?

Remember people, it was our (also non-chemist/physicist) Beezy Shaw that worked with Frank Bradley at CSR to develop the Vectran for Skydiving use originally. We were the first to use Vectran and had a few years experience before anyone else dared to try.

We can't claim to be the first to use the HMA however, as Klaus from Germany was using it for a few years before we discovered his canopies.

Oh by the way, my big brother can beat up your little sister.

(hehehe I just had to get in on some kinda fight!)

Chris

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This is a fine quote on UV resistance:

"(1) Resistance to light
High tenacity fiber has generally low light resistance. The strength of Technora can be lowered to a half when exposed to sunlight for about 3 months. For applications directly exposed to sunlight, the surface of the fiber is recommended to be covered by some other materials."



So, you are saying that UV resistance is really no big deal, unless you pack outside and leave your gear laying in the sun. For the 3 minutes or so my lines get exposed to sunlight on a typical jump, it would take ~14,000 jumps to get the equivalent of a 3 month exposure. Even at 15 minutes per jump, packing outside, that's nearly 3000 jumps to lose half of the strength.

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I'm saying no such thing, I was quoting the manufacturer of the fiber. A question was brought up about UV resistance and I consider the manufacturer a SME and the main source of accurate information.

Looking up Vectran's UV resistance - it becomes stable after loosing 30% of its strength in 450 hours. Spectra appears to have minimal deterioration because of UV radiation.

Its up to you which specs are important. Design work has trade-offs, its the golden rule of engineering: better, faster, cheaper - pick only 2.

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Te..HE he he..:D

I Luv it when I can just listen and gather rather
Tried,True and Sound Information.

Ok..Im gonna go for now..
Just felt the need..Im Neutral
The glass is half full or half empty doesn't matter. Let go and have the Lord guide your path. He will take care of it all.

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In the use of suspension lines (even those used during Daylight jumping where UV is plentiful), combined with other, perhaps more important wear elements such as sand and dirt... Our experience with HMA shows that it will outlast Vectran. How many Vectran lined canopies are in Eloy or Perris with 1000 jumps on the lineset?
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My question is how many Technora lined canopies at Eloy still have all of their original lines at 1000 jumps. It is my understanding that some broken lines are being replaced.

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Remember people, it was our (also non-chemist/physicist) Beezy Shaw that worked with Frank Bradley at CSR to develop the Vectran for Skydiving use originally. We were the first to use Vectran and had a few years experience before anyone else dared to try.


And it was Frank Bradley,III and myself that developed the Technora that you may be purchasing from CSR, if in fact you do buy it from them.
Also, the Vectran was developed for use with Icarus Products that you guys where also manufacturing at that time.
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We can't claim to be the first to use the HMA however, as Klaus from Germany was using it for a few years before we discovered his canopies.

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Yes, and that fiber is a generic form of Technora. It is a HMA and similar to Technora.

I do think Technora will be a viable material to use as a long life line in the future for sport jumping, but not in the form that it is presently being used.

We do use it in the current form (uncoated and 340 lb.)on the Icarus Teams. These are closely monitored and replaced frequently as a complete lineset only after a limited number of jumps.

BS,
MEL

Skyworks Parachute Service, LLC
www.Skyworksparachuteservice.com

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My question is how many Technora lined canopies at Eloy still have all of their original lines at 1000 jumps. It is my understanding that some broken lines are being replaced.



Many canopies have exceeded the 1000 jump mark without a broken line. Does anyone know of a single Vectran lined canopy to reach 1000 jumps without a broken line?

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Also, the Vectran was developed for use with Icarus Products that you guys where also manufacturing at that time.



Yes true, we did considerable R&D for the canopies we built and marketed under the "Icarus" name. Not to be confused with Jyro's company at the time, New Zealand Aerosports. Many people forget that Precision started a marketing company we named and incorporated in Tennessee as "Icarus Canopies". Jyro began using Vectran after he saw our experience with it.

Vectran lines have their place, with careful monitoring they can be safely used, we find that HMA does outlast the Vectran in all skydiving environments and with the most significant advantage of less drag.

Chris

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Many canopies have exceeded the 1000 jump mark without a broken line. Does anyone know of a single Vectran lined canopy to reach 1000 jumps without a broken line?



I don't know about "without a single broken line", but I know for a fact that Stephan Lipp at Eloy put 1600 jumps on the original Vectran lines on his Velocity. This was discovered last Christmas at the holiday boogie by Kolla.

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Does anyone know of a single Vectran lined canopy to reach 1000 jumps without a broken line?




bram clemet has a crossfire that has over 1000 jumps on it, and he's still jumping it. he used to spend the winters in AZ, but now he spends them in zhills.

he plans to go on this line set until he has a line break is what he told me.

later

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I assume these guys are changing the lower control lines regularly - is that right?




i'm assuming the same thing, but i don't know. bram told me this a year ago, and then i saw him this past winter with the same line set, but i didn't ask if he had changed the brake lines.

i'm guessing yes.

later

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