Tension knots

AJ.Stuyvenberg

Re: [unclecharlie95] Tension knots

Yes, I have only outside GoPro video of it though.

gharrop

Re: [unclecharlie95] Tension knots

unclecharlie95 wrote: - stall canopy (worked for me)
- pull high enough to try above
- even on a low pull, stalling into the dirt is infinitely better than landing in a spiral.

W_Heisenberg

Post deleted by W_Heisenberg

auvergnat

Re: [W_Heisenberg] Tension knots

Well, I find it incredible that I tell you that number of people in France are using it since years and that it's working and that you are not even curious or interrested about it!
We have professional chimiste that explain that Silicone is completely neutral and that it can be found without solvant, but you know better than all!
Talk about nerow mind people!
But nothing new under the sky, stupid people where saying that train will never work that Edison was a fake, ect, ect
Please make a favor and don't bother to reply
Christophe Dubois

flite

Re: [auvergnat] Tension knots

I see no mention of the primary stow . I always check my brake lines for twists and wrap the primary stow how ever many times it takes to be good and tight.

auvergnat

Re: [flite] Tension knots

You are right, a good primary stow is essential and to be very very tight, it's a recommendation as well from Stan of Atair canopy.
I personnaly use two rubber band as primary !
It help to straighten the line as best as possible before the slider go down -or that the canopy start to open.

seeya

Re: [unclecharlie95] Tension knots

Curious if your full stall was done with the risers or brakes ?

hjumper33

Re: [auvergnat] Tension knots

Id be interested in any stats on lineovers and if people stow their brakes on landing or while packing. Ive always been very paranoid of twists, and never stow on landing, but know many people that do. (I stow on landing in skydiving and have a shit ton of twists I have to take out every once in a while)

auvergnat

Re: [hjumper33] Tension knots

I don't think that to stow on landing protect you from twist, especially that most of time you are still in the jump.
I believe that even few twists are a factor on tension knots in base, so I quickly untwist on each packing. When you find your way,he doesn't even take a minute more and you are relax !

Fledgling

Re: [bambow] Tension knots

bambow wrote: What are people's thoughts on building cascaded uppers for non outlaw canopys?

Have people tried and failed? Is this just a marketing gimic? Would it be to hard to recreate the proper tail shape?
The oldest example I have seen of this type of construction was on a military square built in 1971. The idea is not a new one so I am going to assume the reason it is not more common is simply due to ease of production. It also eliminates the ability of replacing the lower steering lines.
Try it out and see what happens. I doubt tail shape will be the issue, it's a big fucking square. More likely you will have issues finding the correct line length for each splice and run into the tension knot problems that were suffered by some 5th control line set ups.

TomAiello

Re: [auvergnat] Tension knots

auvergnat wrote: Do you know why rubber band in tail pocket didn't work in the past ?
The off heading rate increased because the tail pocket was bouncing from side to side (and pulling the pack job with it) as each stow popped on alternate sides.

Tom Aiello

Tom@SnakeRiverBASE.com
Snake River BASE Academy

TomAiello

Re: [Fledgling] Tension knots

Fledgling wrote: bambow wrote: ...cascaded uppers... It also eliminates the ability of replacing the lower steering lines.
You can create a replaceable lower by finger trapping in a separate piece for the bottom 3 or 4 feet of your control line. Then you only replace that bottom piece, so you don't have to try to rebuild the cascaded upper when you replace the lower.

Squirrel's new brake setting style (with the spectra loop instead of a long continuous piece of dacron) also appears to greatly reduce the frequency of required replacement.

Tom Aiello

Tom@SnakeRiverBASE.com
Snake River BASE Academy

auvergnat

Re: [TomAiello] Tension knots

Hi Tom
I was guessing something like that!
Christophe

bedrok

Re: [GreenMachine] Tension knots

How furry are we talking here? I have attached and linked the picture of worn Dacron lines from PD's website. Should I consider replacing my lines for fear of tension knots with only slight wear (17%)?

Jumping blackjack only slider off.

http://blog.performancedesigns.com/wp-content/uploads/2015/11/dAC1.jpg

unclecharlie95

Re: [seeya] Tension knots

seeya wrote: Curious if your full stall was done with the risers or brakes ?
Risers

BASEstore.it

GreenMachine

Re: [bedrok] Tension knots

How furry are we talking here?

Very!

Way worse than 'Heavy' wear in your link:
http://blog.performancedesigns.com/...ads/2015/11/dAC1.jpg

Day BASE 1366
Night BASE 293

TomAiello

Re: [TomAiello] Tension knots

I think that maybe people are focusing on the last 5%, and missing the first 95%.

To reduce the chance you have a tension knot, before worrying about most of the stuff being discussed here, be sure you are dialed in on:

1) Pack neatly
2) Untwist control lines
3) Have a good primary stow
4) Check all your lines (not just the control lines) for twists when you hook up your canopy (or just do it right now if you've never done it before)
5) If your lines look worn enough to worry you, get a reline--it's cheap mental insurance for your presence of mind on the exit point

I see a lot of people skipping basics and running around wanting to create experimental new systems, when just focusing on the basics would fix 90% of the issue.

Tom Aiello

Tom@SnakeRiverBASE.com
Snake River BASE Academy

flyjeronimo

Re: [auvergnat] Tension knots

auvergnat wrote: I personnaly use two rubber band as primary !
It help to straighten the line as best as possible before the slider go down -or that the canopy start to open.
Be carefull, someone could take it for truth... Each jump as its rule and using 2 rubbers band on the primary stow and very tie on a SD or PCA or static will be dramatic! The primary stow is to prevent an asymetrical deployment of the canopy.

About tension Knots as W_Heisenberg said, never used some chemicals on nylon, never!!!

For me, lines stretched during packing with a good folding in the TP are the best way to eliminate tension knots and more carrefully on light canopy with thin lines. After, as for line over don't be too much paranoiac... if you do your packjob correctly.

Take care

BASE Sessions - Ego kills, wisdom protects -

auvergnat

Re: [flyjeronimo] Tension knots

You are right, I should have precise on slider up !

But something else bother me, you said :

Why should we accept a sentence just like this without any, but any (from you or others) justification, tests, research and exerience, when there is a chance to save live with silicone on line!

YOU and your kids are eating chimical every day, do you think your skin is less fragil than nylon ?
There all millions of chimicals, let's not generalyse, as we said (our association) have a chimiste who certifie that silicon is absolutely neutral and will not agress nylon - but did we really need this information, how many women have breast with silicon?

For the one ready to have their own opinion and ready to not follow the " chimical are dangerous" theory, the silicone who are using is one wich is use on wet suit so directly in contact with the body and have no solvant or allergene.
https://www.gearaid.com/products/silicone-spray

hjumper33

Re: [auvergnat] Tension knots

Id also consider that silicone on lines will also need to be reapplied frequently if its really to be of any benefit, will trap a lot more dirt/grime on your lines making them wear faster, and probably stain the canopy/container over time. Also, it is only of theoretical benefit on a problem that is extremely rare in the first place. I think there are much better measures to make a habit before this one.

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