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SkydiveMonkey

Opinions on tube-stows

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I use 2 tube stows to close the bag, the rest of the lines are in a pocket on the side of the bag. If there was such a thing as line dump, it would happen on every reserve deployment.

A P/C produces over 100 pounds of drag at terminal speeds. If you think a bag lock is caused by a rubber band or a tube stow try this. Tie 100 pounds to a rubber band or tube stow and try to lift it off the ground. Try to do it with one swift move. Just think of you body weight hanging from one rubber band.

I have over 1,000 jumps on this bag with no problems.

Sparky
My idea of a fair fight is clubbing baby seals

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Sparky - i'm just curious - is that easy to pack? It looks very neat. is it likely to be something that would appear for general use in the future?

I've never really understood why people go on about line dump - i have a couple of friends who only use the locking stows and s-fold the rest into the bottom of the container and they don't seem to be any the worse for it! (too much excess line lying around for me though....) I guess the problem comes if the canopy leaves the bag before linestretch (bag dump?) but if your locking stows are good this shouldn't happen right?
Never try to eat more than you can lift

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>The words "bag lock" come to mind.

Odd, then, that unbreakable stows are used on many reserve freebags.



Reserve freebags and main D-bags are very different equipment.

The safety stow on reserve freebags can only create bag lock if the second bight manages to get inside the first that's aboout half the freebag width away. The safety stow can come out as soon as the first bight pulls loose. There are no more stows. The relative locations preclude a bag lock even with silly-long line bights.

Main bag stows can be an inch apart. Large line bights can definately reach each other. The idea behind moving the stows in from the edges is to have equal mass between and outside the stows which can get you even longer line loops. You might have four closing stows and eight down the bag with six an inch from two neighbors and four an inch from the single adjacent stow.

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The safety stow can come out as soon as the first bight pulls loose. There are no more stows.



And if the first stow does not release?

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The relative locations preclude a bag lock even with silly-long line bights.



You've tested this theory and you know this to be the case?

I think if you do some testing it will show that most bag locks are caused by lines not stow band. That is the reason for controlling the lines for a staged deployment.

Sparky
My idea of a fair fight is clubbing baby seals

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Sparky - i'm just curious - is that easy to pack? It looks very neat. is it likely to be something that would appear for general use in the future?

I've never really understood why people go on about line dump - i have a couple of friends who only use the locking stows and s-fold the rest into the bottom of the container and they don't seem to be any the worse for it! (too much excess line lying around for me though....) I guess the problem comes if the canopy leaves the bag before linestretch (bag dump?) but if your locking stows are good this shouldn't happen right?



The bag is easy to pack, if you can call any packing easy. I hate to pack. I wouldn't look for it on the market anytime soon. I made this one in 1997 or 1998 and its the only one I have seen.

As far as "free packing" the lines, I don't think that is a good idea. When a canopy deploys there is metering and staging. Metering is some method of controlling how fast it opens or at what speed it will open. Staging is done to allow the canopy to deploy in an orderly manner. This is either lines first as with a D-bag or canopy first as when the lines are stowed in the pack tray. (not a good idea for squares) Lines stows on a D-bag are a way of controlling the lines during deployment. Another is the side pocket like on a reserve free-bag and on the D-bag I use.
The side pocket does a good job of staging the lines and does not produce the bag whip that stows do.

I hope this helps.

Sparky
My idea of a fair fight is clubbing baby seals

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