parachutist

https://uptvector.com/tandem-rigging/ Trim chart

A rough guess... maybe late 2017. I'm going by the AAD manual dates as seen here: https://www.m2aad.com/documents/ And the Chutingstar item description was put online May 6, 2018

I do the same

I haven't found a good way to mount 2 Hero 5/6/7 Blacks in such a way that all the important buttons, lenses, and ports would be available without removing the cameras every jump. For that reason I made no double camera designs for these Blacks. I had hopes for the Silver and White models because of their simplified ports (the micro SD card and USB are both in the same side door). But the lack of a timelapse photo feature on the Silver and White made me throw my hands up again. Instead I still recommend double Session 5's for now.

The white and silver models are crippled IMO because there's no timelapse photo feature. That makes them useless for my HC purposes anyway I wrote to GoPro about that several weeks ago, but there's been no reply. Chris

ebay "battery powered led strips"

Reading between the lines, they will have a new Session style camera coming out some time this year, but it will be even smaller. I figured Nick was referring to the new Hero model (same body as the black 5 & 6) as the replacement for the Session. I hope you're right about a smaller-than-session camera in the future

http://www.boneheadcomposites.com/5.html

I felt that way for several years, until something finally clicked and I felt I understood how to pack them better one day. After that I started appreciating some details of the Wings: the line pouch protects the lines from the velcro closure with no need for extra tools. The bag split in the middle allows me to fill those ears quite full with little stress during insertion. No extra tool is needed to guide the closing loop through separate top/bottom grommets. The freebag is made of durable material, instead of thin F111. I guese all my appreciation is for the freebag design. Hmmmm

Replacing a kill line yesterday, I noticed it seemed a little thicker than the usual 1000#, so I did a search through the newer Sigma manual and found 2 entries with different values. http://uptvector.com/PDF/Support/Manual/Manual_Sigma_MAN-013.pdf From p3: The Drogue System (Patent: 6,626,400) The 1¾” Kevlar outer bridle extends past the disc all the way to the main deployment bag. The kill line is 1200 lb. Spectra and terminates at the bag. From p14: K. Kill Line – A length of 1,250 lb. Spectra line, with a 1” loop at each end, which runs inside the drogue bridle from the kill line attachment bridle to the Rapidè link at the bag attachment loop.

Manufacturers are notorious on giving select riggers 'tips' on methods outside the manual. This manufacturer in specific. Folding in thirds seemed to make the mass stay more solid while pushing it through the hesitation loop, making it easier when I get one of those not-very-stretchy loops.

Sigmas Fold in quarter, insert 1" (That's new to me, I thought it was still listed as half in the manual. However I've been using thirds for a few years after getting tips from a UPT rep at a PIA symposium)

No problem, and I'm glad to hear what you have to say. Going back through my experiences on DZs, I've been present on 2 occasions when hard openings caused fractured neck bones, and 2 times when the force seemed strong enough to cause injury, but luckily didn't. The lines involved were Spectra (almost new Pilot loaded at 1.2), Dacron (Lightning loaded at 1.3), Spectra (Silhouette loaded at 1.2), and Technora (xVX loaded at 2.2). Causes for 3 of those were attributed to packing techniques, and the Lightning one... Could be air speed, body position, packing, and canooy nature all mixed in. Very often I see damaged HMA and Vectran lines after 100-iah jumps on a new canopy. Sometimes owners notice, sometimes packers notice for them, but often they aren't recognized until a reserve repack. Or sometimes a line breaks during canopy opening or flight. To me these dangers seem more common than an extremely hard opening. Spectra isn't perfect, but breakage is something it avoids very well. What would you say is a better line choice for low-experienced jumpers?

Fast openings are known to be the nature of the Sabre 1. If that nature were combined with very out of trim lines, I could see it resulting in an extreme situation. I did mention that harder openings are one of the indicators for needing a new line set. They start out very mild on the canopies that I specified, and they progress gradually. Canopy owners have time to recognize the changes in their canopy's behavior.

Could you tell us a bit more about why you recommend spectra lines instead of the other options? Is it just because of the longer assumed life span? Just asking becouse from a rigger point-of-view I cant really recommend spectra because it goes out of trim very quickly and even thou it "lasts" maybe twice the jumps compared to other lines the trim should warrant changing the lines at the same time as other lines (vectran lasts maybe 400 jumps give or take)... When Spectra goes out of trim on a big canopy with low wing loading, the typical symptoms are increased off-heading openings, harder openings, and less effective flares. Those are pretty mild consequences IMO. They're indicators that it's time for a reline. HMA, Vectran, and ZLX lines can quickly get abraded to the point of breakage. Many newer jumpers don't have the knowledge to watch for the wear spots, or they simply don't pay attention. They get very little benefit from those lines but high risk. Vectran lasts maybe 400 jumps under ideal conditions with a jumper who pulls the slider down past their toggles every time. Newer jumpers have their attention maxed out already worrying about separation and merging into landing patterns. I don't think they need to be pushing toggles through #8 grommets after opening, or dealing with an RDS system.