Positive Tension Device

[mcrawford 0]

Thanks

[mattb 0]

http://www.skydiveheadland.com/PTD/positive_tension_device.htm

[sunshine 2]

I'm curious how many riggers out there use one of these. It just looks weird to me. Is it a new thing? Anything that would help closing the reserve would be so helpful, but i don't wanna put out that much money on something i've never tried.

___________________________________________
meow

I get a Mike hug! I get a Mike hug!

[drenaline 0]

Oh man! this sucks, I was kinda inventing something like that.

HISPA 21
www.panamafreefall.com

[indyz 1]

Just thought I would point out: The rigger on a budget can build one of these out of a $20 one-handed bar clamp, some scrap metal, and a few other odds and ends.

[mcrawford 0]

Yes, anyone can make these. There not really that hard to make. Try cutting the notch in the slider bar and then polishing it so that it will not cut the pull up cord. I think you will find this a very difficult task. I have a machine shop prepare these and they will tell you this is very hard metal. But you are correct they are easy to put together from a one handed bar clamp.The original template came from a buddy of mine that had one made of wood. Worked great But I prefer the one made out of metal.

[skycat 0]

Has anyone used one of these? My fear as a jumper (without the strongest arms) is that something like that would increase the odds of a hard pull.

Kelli

Fly it like you stole it!

[PhreeZone 20]

How so? The reserve should be pull tested to verify its under the legal limit, I can't see how using this would be any different then using a crank and plate. This might increase the amount of tension over a simple crank, but then again it might break before the tension gets that high since its plastic.

Yesterday is history
And tomorrow is a mystery

Parachutemanuals.com

[skycat 0]

Phree, have you used one of these? If so please tell me your actual experience with it.

Also explain how you do a pull test after a fresh repack? Since the only pull tests I have seen were done right before the repack.

Fly it like you stole it!

[mcrawford 0]

Rest your fears. This is just a tool. Like any other tool in your riggers kit, used without good judgement and it can be dangerous. The legal limit is 22lbs for a pull and that includes having it sealed with a safety thread. Regardless how the rigger closes the rig it must stay under that limit. The purpose of the tool is not to crank down on the rig but to free one or both hands up.

[riggerrob 643]

I still prefer my molar strap and B-12 snap tool. It is less expensive and rolls up smaller.

[councilman24 37]

I use a ratcheting device thats much smaller. It also cost even more. With anything like this you have to be responsible. I can tear a rig apart with the one I have. I recommend new riggers don't use something like this, but get a feel for the rigs and the tension needed to close them. But after 20 years is nice not to strain my back quite so much.

I'm old for my age.
Terry Urban
D-8631
FAA DPRE

[Hooknswoop 19]

Quote

Rest your fears. This is just a tool. Like any other tool in your riggers kit, used without good judgement and it can be dangerous. The legal limit is 22lbs for a pull and that includes having it sealed with a safety thread. Regardless how the rigger closes the rig it must stay under that limit. The purpose of the tool is not to crank down on the rig but to free one or both hands up.

22lbs w/o the seal. Pg 296 VOL II PPM.

Hook

[skycat 0]

I had just heard of someone who had used something like it and because they were able to close a rig with a 1 inch closing loop did. Luckly that person didn't need to use the reserve.

I just hope that there is some warning on it to tell riggers that they can over tighten the rig with this devices, cause as I think it was riggerrob who said it, "riggers can do things that manufacturers never thought up in thier worst nightmares"

Fly it like you stole it!

[Topcat 0]

Quote

I still prefer my molar strap and B-12 snap tool. It is less expensive and rolls up smaller.

And I just got to use a B-12 snap tool. Finally; I can close a rig by myself - without someone jamming a temp pin into my foot! (Don't ask).

-Sandy

[skydivegirl 0]

Finally; I can close a rig by myself - without someone jamming a temp pin into my foot! (Don't ask).***

That was not a stab... just a near miss

Pink Mafia Sis #26

[geanky 0]

Can you post a picture of the tool?

learn to fly in 3d

[councilman24 37]

Maybe he can but... it's just B12 snap with the gate removed theaded on any kind of strap. Put it over your head and one arm through so its diagonal across your torso. As you lean over the rig tie a slip knot in the pull up cord, hook it over the snap and use your entire torso to pull up on the cord. Works best on an adjustable strap so you can fine tune the length.

This is the kind of tip you learn if you go to the PIA symposium. I actually don't use this one. Another "handle" that works well is a 1 1/4 inch diameter piece of delerin. Cut a slot with a power saw half way through. Put the handle on the pull up cord with the cord through the slot. Then wrap the cord around the handle with the cord going through the slot over itself. Number of wraps and width of slot (just width of blade you use) are varied for the type of pull up. Cypres cord needs a narrower slot. This locks the pull up on itself and its loaded at the middle of the handle so it doesn't try to rotate in your hand. Pops right off for the next grommet.

I'm old for my age.
Terry Urban
D-8631
FAA DPRE