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Layne

SLIDER TRIX

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thanks for teh replies, I was quite sure they would'nt jump without slider, but who knows.... some people sometimes do irrationnal things... like jumping from perfectly good planes :P:)
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Fumer tue, péter pue
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ourson #10, Mosquito Uno, CBT 579

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Whats with those split sliders then?

My mates an I saw that last months copy of the mag featured a load of shots of a style and accuracy comp and all the accuracy canopies had a slider that came appart down the middle (front to back). How does that work? none of us had seen it before or could figure out how they worked?

The slider must connect at some point cos for style you're doing terminal but having the ability to split the slider must be useful on those big ass accuracy canopies. (note - most had tripple risers for their breaks if that makes any difference)

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Split sliders are common in accuracy since they let the lines spread out to the maximum span of the canopy. They operate on a pull line usually, pull the line and it undoes the loops holding the slider together. A lot of the time you can't pull the slider down on accuracy rigs since they use hard toggles (dowel rods) for control toggles.
Yesterday is history
And tomorrow is a mystery

Parachutemanuals.com

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How does that work? none of us had seen it before or could figure out how they worked?



Think about how you close your D-bag. Loop (rubber band) through Grommet. In this case (at least in some cases...) the loops are made of cord (dacron usually), and are on one side of the "split" with grommets, button holes or other smaller loops on the other side. You lace a piece of Dacron through the locking loops after you've put the slide back together. Lock the end of the cord off somehow and you're slider is now one piece.

After opening, you unlock the end of that pull-cord piece of Dacron, pull it out and the sldier splits in two.

*Note- the more locking loops there are, the more "solid" the slider is. Using only 2 or so loops results in a big gap in the slider making it less useful. Ouch!

FWIW, I've also seen this design using type III tape loops to make a piano hinge between the two halves and a piece of cutaway cable run through them to secure the sides together.

Not a terribly useful design for modern HP canopies...with large grommets and narrow risers you can simply pull the slider down and forget about it without having two halves of a slider slapping around.


"...and once you had tasted flight, you will walk the earth with your eyes turned skyward.
For there you have been, and there you long to return..."

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FWIW, I've also seen this design using type III tape loops to make a piano hinge between the two halves and a piece of cutaway cable run through them to secure the sides together.



Just like a wing suit secures the wings to the body - how we figured it must be.

Hmmm... you know you've spent too much time at the "funky modern" DZ and not enough time at the "traditional" DZ up the road when you know how a wing suit is put together but have never seen the slider from an accuracy canopy :$:D

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Check this out. Page is in german, check second pic from the top. depicted are two small stiffeners open downward attached to your front risers, so that your front slider grommets can be hooked up under them. I think every rigger could sew something like that to your risers...
I've jumped a demo with these, slider stays down nicely.
Much simpler than all that behind your head fiddling stuff and by far not as scary (to me) as your zipper/teeth stuff...
The mind is like a parachute - it only works once it's open.
From the edge you just see more.
... Not every Swooper hooks & not every Hooker swoops ...

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People have always suspected that a velcro wrap might have been able to hold it in the case of a cutaway and the velcro is only about 30 pounds sheer and only a couple pounds peel force.



Out of curiosity, what if you made the attachment from the slider to the velcro on the container at the BOTTOM of the container velcro so that it would only have to deal with peel force and not sheer?

Would that work?

Wrong Way
D #27371 Mal Manera Rodriguez Cajun Chicken Ø Hellfish #451
The wiser wolf prevails.

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Those have been around for a quite a while. Good stuff, and easy to install. The only down side is that they usually have plastic inserts in them, and they can break...then they are mostly useless and can actually damage your slider if they hook it.

Also, they add a bit of bulk to your risers. Not so much as to be a problem, but a bit. Overall, they're way cool though!


"...and once you had tasted flight, you will walk the earth with your eyes turned skyward.
For there you have been, and there you long to return..."

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I think that slider locks are the simplest and cheapest means of keeping your slider down.

A rigger can put these on your front risers in about 2 minutes, plus it takes about 1/4 of a second to use them. You pull the slider down, and you are free to do other stuff (like avoid traffic, fly to the dz, etc...)

Attached is a pic of the slider locks that are on my rigs. So simple, and yet so functional.

does anyone have a downside to these, because they work totally fine for me.

jeff D-16906

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Are you guys flying backwards? These tabs are mounted to the backside of the risers and will not hold the slider down. However: If they were mounted on the frontside, the slider would be forced against them due to the headwind, and thus be held down by them


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Are these magic tabs??? Do they come with a bag of beans???




They are magic in the sense that they keep the slider from getting in your way;) Beans not included. Check 'em out below,

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If you really want to be competitive you should be thinking about a removable slider.

-jonathan



>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Several photographers have tried removable sliders, but they require far more (packing) than the average weekend jumper.

I have been experimenting with a radically new type of removable slider, but it is not going to fly until we solve some tooling problems.

In the meantime I recommend slider catchers sewn onto risers. While I have sewn up a few of Sandy Reid's tuck-tab type slider catchers, lately I have shifted to triangular slider catchers made of Type 4 tape.

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If you really want to be competitive you should be thinking about a removable slider.



I could be wrong, but Ive seen people do some real sick shit with a slider and a p/c still on the canopy. And I have seen canopies with them gone do not as well. I think the gains are probably slight and all else needs to be perfect. If anything, I would think the bag and p/c would cause more drag than a properly stowed slider.

Johnny
--"This ain't no book club, we're all gonna die!"
Mike Rome

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then they are mostly useless and can actually damage your slider if they hook it


Another thing learned! :)I'll have mine installed soon anyways...
Imho a risk a lot smaller than using zippers and such...
The mind is like a parachute - it only works once it's open.
From the edge you just see more.
... Not every Swooper hooks & not every Hooker swoops ...

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If anything, I would think the bag and p/c would cause more drag than a properly stowed slider.



You are right about the amount of drag reduction.

It's not just the drag that's important, but also the riser spread from left side to right side. It will make the canopy flatter thus flying more undistorted and more like a wing.

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