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Deimian last won the day on August 13 2021

Deimian had the most liked content!

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  • Main Canopy Size
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    Vigil 2

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  1. Line twists are caused by asymmetries during opening, which can be caused by various things. In skydiving, wind gusts is not one of these things. Don't overthink it, they can happen. Don't get too relaxed about the canopy flight though. Once you are able to fall and pull stable, they are one of the most dangerous part of the sport, specially when you start getting smaller canopies (and by smaller I mean simply smaller than what you have now, not small, you don't need an 80 sqft canopy to get hurt or hurt somebody else) Welcome and have fun!
  2. GT-R is a more advanced canopy and not really adequate for somebody flying crossbraced for the first time. Think of it like a Valkyrie, Leia or (W)airwolf. For going from X-Fire to something more advanced probably JFX2 or Gangster are better options.
  3. I believe most webbing work is sewed with size 5 and 6 nylon cord.
  4. As the saying says: An extraordinary claim requires extraordinary proof.
  5. A friend of mine died 5 years ago. He had 2 rigs that used regularly. On one he had a Stiletto 120. On the other one an Odyssey 120. They were even the same colours (mostly). These 2 canopies have quite different recovery arcs. He made a low turn. I don't recall which canopy he used on that jump, but I wonder if he was jumping the Odyssey, but expecting the recovery arc of the Stiletto. I think that is something very important to consider if you go for 2 different canopies in your rigs.
  6. Strictly speaking, he's right. Actually, strictly speaking, there is no skydiving canopy that has a Schumann planform. The "original" (for lack of a better word) Schumann planform is a planform for gliders, with very high ellipticity on the leading edge (towards the wingtips), and a straight trailing edge. Gliders have wings that have a much longer span than any skydiving canopy, so no skydiving canopy can have a Schumann planform, if we are strict with the terms. But if we abuse the term and apply to "high ellipticity on the leading edge and straight trailing edge", I think it is not bad if we abuse it a bit more and apply it to "high ellipticity on the leading edge and straight-ish (as compared with the leading edge) trailing edge". And that applies to all the canopies I listed, if I am not mistaken.
  7. You are right, but changing planform does not necessarily mean "optimize everything for performance". Things like openings, and harness responsiveness have nothing to do with performance. Other stuff, like how far the wing can carry you in rears for a given airspeed has to do with performance, but has nothing to do with the aggressiveness of the canopy (aggressiveness is for me, in this context, how much speed you can produce by making it dive). The top line is both very high performant and very aggressive. Nothing speaks against having high performance (lift produced, distance in rears, flare power) and medium aggressiveness (don't dive until the end of days) One can always tweak and tame down some aspects. A "VC" with Schumann planform is not necessarily a VK. The Gangster from Fluid Wings is Schumann, but dives less than the VC for instance. The X-Fire is Schumann and it is not even cross-braced, and it dives less than the Gangster. A "VK lite", with the great openings of the VK, its rears, its harness responsiveness, its flare power, but with a shorter dive sounds good to me. I can imagine a future PD progression like SA3 -> KA2 (updated Katana with a bit less dive than the actual one, but all the good things of canopies like the X-Fire) -> "VK lite" -> VK In any case, that's just my view, I am also not a canopy designer. Maybe I am just missing something.
  8. I see a few reasons: - Schumann planform canopies tend to have more lift than traditional elliptical canopies, and they tend to hold longer in rears. I believe that is one of the reasons why paragliding canopies have been using this planform for a long time. - They tend to open better. At least I haven't seen any Schumann canopy that does not open nicely and on heading most of the time (X-Fire, all the Fluid Wing canopies, Valkyrie, Petra, Leia, Odyssey EVO). Maybe it is just coincidence, but seems like a big coincidence to me. - They tend to be more responsive on harness. - Connected to previous point: All the advanced cross-braced canopies are Schumann nowadays. I think an entry level cross-braced Schumann canopy would make the transition into the advanced ones a bit more natural Asking the other way around: why not? I think the only reason not to do it is that it requires a bigger investment in R&D than a smaller update of an existing canopy. But since we have high end crossbraced canopies and advanced 9 cell regular canopies using Schumann planform, I see no reason to don't think it is a good idea. Entry-level crossbraced canopies are right in between these 2 categories.
  9. Don't get me wrong, I think the JFX2 is a nice canopy and definitely an improvement over the original. But I think they left some interesting things on the table. The (probably) most important one is having the chance of having a Schumann planform canopy suitable for people that is jumping cross-braced for the first time. Just my 2 cents.
  10. The same is true for almost all manufacturers. The entry-level cross-braced canopies are all old designs, except the Gangster from Fluid Wings. The JFX2 is a nice refreshment, but looks to me basically like a JFX1 with a couple of small changes, not a completely new canopy. I really would like to see in this category a canopy with inflatable stabilizers, miniribs, and Schumann planform. Maybe these things would drive the manufacturing cost too high for this category? BTW: The Katana also needs an update
  11. That is what skydivers that don't go to tunnels regularly think. Tunnels have evolved pretty much in the same direction than skydiving. To offer a carnival ride kind of experience for people that want to try it once and move on to the next thing. All of the tunnels I know have their main source of income in first timers that will never come back (or at least not regularly). Protecting themselves from bad press or liability when a first timer come with a bad shoulder is just common sense. Now, in this case, this is not a first timer, so they might act differently.
  12. I am not sure that the fact that we have spring loaded PCs for reserves is a good argument for defending them for mains. Reserves are special in a few ways: - AADs need to be able to activate the opening sequence, so you need the spring loaded PC for that, no way around it. - They are most of the time activated after a cutaway, more often than not caused by a spinning main and activated via RSL or MARD, so the large burble created by a wingsuit or a balloon suit are simply not there. - The PC does not stay connected to the canopy. Different use cases and boundary conditions, so different solutions. I am quite sure that if wingsuiters start relying on spring loaded PCs we'd start seeing soon a lot of videos of PCs being sucked in their burble.
  13. I had that a few years ago. I could use my old rig just fine, but my new rig had the BOC too high. My shoulder was messed up back then though. After PT and patience it is not a problem any more. Small javelins are notoriously short, but unless you are abnormally tall, I would suggest to check your shoulder and flexibility.
  14. The Collins lanyard requires a split housing for the riser opposite to the RSL side. You can't do that on the right riser. That's why rigs with the Collins lanyard have the RSL shackle on the right, so the lanyard is attached to the left cutaway cable, and most (all?) other rigs have the shackle on the left. Retrofitting the lanyard in a rig not designed to have it is not a small thing. I doubt many riggers are actually willing to do it, regardless of TSO violations or similar regulations.
  15. Flat tracking is what you should do on separation, absolutely. My point is that almost nobody experienced is doing full flat tracking jumps anymore. The only people that I am aware of that do flat tracking jumps, are new skydivers that can't (and shouldn't) do steeper angles. In this time and age every tracker worth their salt moved into angle flying and steeper angles.