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Pilot HMA lineset

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HMA lines tend to be mades only for canopies that are on the ultra high proformance range due to their smaller size reducing drag on the lines allowing the canopies to swoop further, I'm curious as to what benifits installing HMA on a Pilot would have. You best bet would be to contact a loft that is builind line sets and see if they could build you a custom one. Pete Swain in Lodi would be a good starting point.
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non-cascaded HMA stays in trim for the duration of its lifetime and routinely lasts 1000 jumps on canopies like the nitro.

The only downside to it seems to be manufacturers lose out on replacement linesets.

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non-cascaded HMA stays in trim for the duration of its lifetime and routinely lasts 1000 jumps on canopies like the nitro.

The only downside to it seems to be manufacturers lose out on replacement linesets.



We are getting Nitro canopies in for relines at anywhere from 250 jumps to 500 jumps. I know some jumpers are getting 600+ on their Nitro linesets, but that is not a common occurrence.

Mike
ChutingStar.com

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HMA lines tend to be mades only for canopies that are on the ultra high proformance range due to their smaller size reducing drag on the lines allowing the canopies to swoop further



Precision Aerodynamics has been putting HMA lines on all their canopies, including the Fusion and Synergy (two entry level canopies).

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Id be very happy with 500 jumps from a lineset that stays in trim. Also, with non-cascaded HMA I could put the lineset on myself, instead of paying my rigger $200 to fit it (Aussie $). Though 250 - 500 jumps on a Nitro seems very short considering everyone I've spoken to that owns one has gone long past 500. That said, I could change linesets twice as often as a Spectra lineset and still break even $$'s wise on riggers fees.

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IMHO, if someone has a bit of patience, and is somewhat heads up about their gear, the non cascaded line sets are not very difficult to install. The proof of that is even my dimwitted ass has changed 3 line sets on my personal canopies.B|:P

The ease stems from the fact that they are all pre-sewn and being able to read the instructions, match the labels to the proper attachment points, and use a measuring tape to check your work, are the only pre-requisite skills needed.

Of course I find cascaded line sets not too hard as well, but that requires a Bartack machine.

Note: I am not arguing for the legality of who can or can't change a line set, just the skills needed.

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Any thoughts as to why? I have gone between 900 and 1000 jumps on 2 Xaos linesets, without trouble, and less than a 1/2" trim deviation.



No problems on the shrinkage with the Nitro linesets either...

But there are a couple of differences between a Xaos and Nitro jumper/lineset. First, the line is slightly different. I never found out exactly from Beezy what that was before he died, but he always said the black on Nitro lines wasn't a coating, but part of the chemical makeup of the line...and that it was definitely different than other HMA. He also changed suppliers for the line about a year before he died...so the new line hasn't been around long enough to see if it is better, worse, or the same as far as durability.

Second, there are some differences between "usual" Nitro and Xaos jumpers in that a Xaos jumper would more likely put the slider below the toggles (or have a removable system) after opening, reducing wear on the lines near the links. Many Nitro jumpers (lower experience level needed) may leave their slider above their toggles and may not even always collapse their slider, which adds more wear to that area of the line per jump. Most of early wear issues on Nitro linesets seem to be at that area of the lines.

Since taking over the lineset portion of HiPerUSA for relines and building new canopies, I've found there have been some inconsistencies in HiPerUSA's slider grommets. I have found several that are not set flush and may be contributing to early wear on some linesets, especially if the slider is left at the top of the risers after openings. Resetting the affected grommets has helped solve that issue.

Lastly, the black HMA line on the continuous lineset is smaller compared to most standard cascaded linesets, so it doesn't take much damage to render a line in need of replacement. No issues if taken care of and treated with care...but a small snag becomes a bigger deal on the smaller line.

Mike
ChutingStar.com

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what diablopilot said. I dont have a bar tacking machine.




If you have the skillset and desire to install a lineset (it is easy if you are detail oriented) - then finding a bartack machine to use should not be the part that holds you back...

1) There are places, other than riggers, with bartack machines. Start calling around to the commercial sewing machine repair guys asking, "I am looking for someone who owns a bartack machine that will let me use their shop and machine after hours for a bit of gratuity." Or even just ask, "What mom-n-pop guys own a bartacker?"

2) Riggers with bartack machines might be open to participation where for a small token investment they will train and let you use the machine.

3) A bartack machine is nothing more than a machine that sews a specific zig-zag stitch in an automated quick way. Even a consumer sewing machine can sew a zig-zag. With a bit of practice and reverse engineering - you could figure out what width and stitches per inch you need, dial in the machine, and sew a bartack like stitch on a residential machine. I am going to get flamed for this I bet, however I argue back - if the stitch pattern is a bartack, if you did it by hand with a needle, it wouldn't matter.

Note - I am not advocating doing something you don't know how to do without assistance from someone who can teach you. But if you WANT to learn, and no one is willing to share knowledge (and their bartacker) for a pint of beer or a sincere thank you, in your neighborhood.... You got bigger problems.

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