Deimian

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Everything posted by Deimian

  1. I think it is a "philosophical" question. Some people consider them a gimmick and unnecessary or even bad. I guess the people at UPT are some of those. The only clear advantage I see for the chest articulation, is how much easier it becomes to do MLW shortening/lengthening/replacement. On the flip side, you have more "flexibility" in an area that probably should not be that flexible (the harness could move around more, and it would be easier for it to slide down your shoulders when you are in head down-ish) I think they can be a great thing to have if you buy second hand and you are not sure of the fit of the harness on your body, but I would avoid them when buying a new harness.
  2. That's very good info, I didn't know that! The volume chart website does not mention it at all: https://rigginginnovations.com/skydiving-containers/curv
  3. Of course, we can agree on that. But comfort is subjective and varies from person to person. The points I made regarding taller folks are irrelevant if you are flexible enough to reach further up (I had a shoulder injury that kept on the ground for a few months because I couldn't reach my PC, so I have that more present than most) or if your disciplines do not involve using a lot the hip articulation. At the end of the day, YMMV.
  4. You said that your curv is the most comfortable rig you've ever had. I never contradicted that statement. I am not sure what your point is. If you think my reasoning is wrong, and have the time, please correct it.
  5. Just to clarify my previous statement: I am not saying Curvs aren't good for taller folks, just that IMO, at least on paper, they are not catered to these jumpers. To elaborate a bit more: - The lack of long version of the containers means that -unless it is compensated somehow*- the PC will sit higher on the back. If you are flexible enough that is not an issue, but that's something that everyone needs to evaluate for themselves. Wingsuiters, specially the ones with big suits and long bodies, tend to want long versions, to reach the PC easier and to minimize the chances of the wingsuit fabric getting on the way. - The hip ring junction is far higher than on vectors or javelins. Depending on the length of your body, it means that this will be more or less aligned with your hip articulation. The design of the curv (or unisys harness in mirage, or Infinity) probably helps in keeping the leg straps more "in check" and prevents them from moving too far down the legs, and it is probably pretty comfortable, but there is a limit as to how aligned it can be with your hip articulation, since the lateral will be much higher on taller folks than on shorter ones, and that limit can impact flexibility a little bit. You can check, with your rig on, if when you move your leg up or sit in your harness, the leg straps slide on the ring or of the whole webbing moves and there is no slide on the ring. This might not be enough to be uncomfortable, but it is there. I think this is one of the reasons why Mirage offers both style of hip junctions on their G4s. * This "compensation", if it exists, would need to lower the container without putting the 3 rings too far high, so it needs to be longer on the shoulder area, which will mean longer riser covers, which I guess could look awkward or be more prone to problems. The container would also look awkward hanging so much down the back. This is just speculation on my end, I have never seen a curv done for a tall guy, side by side with a curv for a regular guy, so I can't really make a statement out of this.
  6. - Get a Vector because they have higher resale value - Get a Vector because they have a MARD with Collins lanyard - Get a Vector if you are fairly tall guy (hip rings on the laterals make the hip junction on the Curv too high IMO if you are on the tall end, and Curv does not have long versions of their containers) - Get a Curv because they are IMO the top container innovators in the last 10-15 years (nobody else introduced anything new in a long long time -MARDs aside-) - Get a Curv because of the slimmer profile (due to the superior closing tabs) and naturally tighter fit (due to the bio curv) - Get a Curv if you like it more and the lack of collins lanyard does not bother you
  7. I think you should give a shit about what people think. And why they think it. If someone with more experience tells you that you are not fit for a given jump, maybe they have a reason for it. If their reason is that they are assholes with an ego too inflated, well, then you would be right in not giving a shit. But if their reason is that you are way above your head, and that the plan they are planning to do is too much for you to handle at your experience, then you should be humble, patient and learn step by step. If your profile is right, you should understand that your experience is quite low, and there a lot of jumps that are not for you right now. Even world class athletes were babies once. Your time will come if you are serious about the sport, and you keep jumping, improving and being safe. Those are the only things that matter at this moment in your skydiving career.
  8. I do ask that sometimes if I am jumping with people I don't know. I don't want to go on a super steep angle, a complex jump or a jump with too many people, if this people can't handle it safely. If I don't know them, the quickest way to estimate it is asking that question. Jump numbers are just a partial answer of course, but a good and quick indicator. For me it is a safety question, as well as a planning question. I ask also if I see someone with a questionable canopy choice (read it as in "too small") for someone with low experience. Again, that is for me a safety question (in this case not mine, but I don't want to see anybody hurt, had my share of it already)
  9. Thanks for your input Jim and Jerry. You are way more knowledgeable than me, so I don't want to contradict you and I agree that the time to fill a larger canopy is necessarily longer than the time to fill a smaller canopy for a given airspeed. Also larger canopies tend to be "higher" (have more distance between both skins), so the volume increases significantly more than the surface. From that point of view, I totally understand that smaller canopies might have higher loads on deployment than larger ones, under normal circumstances. But I meant a catastrophic opening scenario, where inner inflation might play a secondary role. Simply the drag of the bottom skin when spread. Imagine a slider-off deployment with a single skin canopy. The drag from a fully spread bottom skin on a large canopy is much larger than the drag from small one, so the deceleration is also larger. That was the scenario I was talking about. Fully spreading a large canopy takes longer than a smaller one, but I expect that the additional time needed to spread a larger canopy does not offset the much larger drag a large canopy can create. That was my way of thinking to explain the trend that most folks incapacitated on catastrophic openings, had those openings on large canopies. Maybe there is something else to consider, and my reasoning is totally off.
  10. I don't have any specifics. But that has been the fix for some canopies well known for opening hard (ie: Sabre 1). But there are two things to consider: - It is a delicate balance. If the slider is too big the opening might take too long, or never happen (the slider might hangup all the way up) - The reason catastrophic openings happen is because the slider comes down prematurely (which could be due to a variety of reasons). A larger slider does not guarantee a proper deployment either. I can imagine it could help, but I wonder if the help is marginal
  11. From what I recall, normally the brutal openings happened with large canopies. I haven't seen or read about a brutal opening in a small one. Makes sense also, for 2 reasons I think. 1. Many large canopies have the same slider size than medium sized canopies. The storm for instance has the same slider all the way from 97 sqft to 230 sqft. Others make 2 sizes or styles (normal slider vs domed slider), making often the cut at 170 sqft. This is despite the fact that the distance between line groups is larger on big canopies. In other words, you have the same force pushing on the slider from bottom to top, but more force spreading the lines and therefore pushing the slider down, so the slider will come down quicker and potentially make the opening harder. 2. Large canopies have simply more surface, so they can cause more drag. That means larger deceleration on opening. On a windy day, holding a tiny canopy is easier than holding a massive one. Same thing on opening, a small canopy can slow you down just so much, but a big one will slow you down much more. My point is that jumping larger canopies does not protect you from hard openings. If something, that's the opposite.
  12. I haven't flew the Odyssey EVO, and I have just a few jumps on Katanas, so take my opinion with a grain of salt. Just judging by planform design, top-skin smoothness and miniribs, I would say that the Odyssey is a much better/modern/efficient design. It will probably carry you longer on your swoop, for a given airspeed. It will also probably behave better on rears and have better slow flight characteristics. Openings, judging on videos, are also good. But there is more to a canopy than that. I really have no idea what is its behaviour in turbulence, its "ground-hungriness", recovery arc, etc. Also the resale value.
  13. It doesn't look like a bit issue looking at the first video. The amount of wobbling is fairly small, and I would expect that the inflated PC could at least help causing that. Does it also happen with a fully collapsed PC, in calm days? Being said that, under normal circumstances I have never experienced wobbling on my X-Fires (flew 124, 113 and 102) Another thing you can check is the length of the A2s. See:
  14. Most federations recommend 1000 jumps before flying cross-braced canopies. Besides that, loading a cross-braced at 1.05 is kind of, for lack of a better word, useless. These canopies are designed for higher winloads, without exception I would say. Loading them so lightly is probably counterproductive. The wing will be less pressurized, and that could be dangerous. To give you an example, Fluid Wings recommends the Gangster for wingloads starting at 1.5. Most other recommend 1.8 at least. I am unsure what is the local culture at your DZ, but judging from the first post looks like the understanding of the different canopy designs and their effect on flying characteristics is a bit lacking. When in doubt, try to be conservative. It is better than been scrapped out of the ground.
  15. Normally it is something like: 1. Belly flying 2. Back flying 3. Beginner head up 4. Intermediate head up (at this point you can share time with other people, so prices start to vary wildly) 5. Beginner head down 6. Intermediate head down After that it depends heavily on your targets 7.1. Advanced head up/down (sequentials with pancakes, infinity grips, ropes and similar. The lexicon can vary per area I guess). This implies sharing time 7.2. Dynamic. This implies being alone. 7.2.1. Advanced dynamic (think 2 or 4 way dynamic) Money depends on time (the the price of the local tunnel of course), and time depends on talent and the quality of the coaching. I don't feel qualified to tell how many hours per item you would need. But it is common to have spent 20-30 hours by the time you start point 7. More if you get "distracted" (let's say you have a 4 way belly team and you spend many hours flying belly on the tunnel). Take a look at https://www.tunnelflight.com/skills even though sequential stuff is not really covered in detail.
  16. Judging by the line trim charts, definitely not. The velocity has a way more "curvy" trailing edge, and that's why the D lines are missing on the 3 and 4 groups (the 2 groups closer to the sides of the canopy, there the profile is narrower than in the middle due to the curvature of the trailing edge). But the bottom line is totally true, there is much more to a canopy than it's planform.
  17. Thanks for the info. I can confirm that a lineset produced by paraconcepts in November, for an XFire 102, has also its A2s 4cm too short. The fingertrap is 10.5cm long. Maybe unpicking the bartack and lengthening the A2 is an option, I am not sure if a fingertrap that is 6cm long is enough.
  18. Do you know which serial numbers and sizes are affected?
  19. They are quieter than G3s. The people I know that have them (in Belgium) are quite happy with it. They do have an audible pocket, and from what I remember, they have some sort of impact protection certification, similarly to G4s or TonFly TFX. To my knowledge, these are the only 3 skydiving full face helmets with some sort of certification. I don't know the details of the certification though. They get scratched quite easily though, so the shiny finish don't last long if you are not careful. And after heavy use the strap starts tearing up. I have seen that in one of the first batches, maybe they corrected that already. I have never seen that in G3s The protection they offer is mainly because of the padding they have, nothing to do with the carbon fibre shell. I don't know why people keep associating carbon fibre with protection. Some people even "show it off" by comparing how ABS shells buckle and how carbon fibre shells don't. That has nothing to do with protection. A steel pot doesn't buckle either, but you don't want that on your head.
  20. As a tandem student/passenger, all that information is practically irrelevant for you. Your DZ will provide you everything you need for that jump. If you look just out of curiosity, yes, there is a lot of information, but you shouldn't try to soak up everything before your first jump, it will overwhelm you and you are likely to misunderstand things. Welcome to the sky.
  21. I did tandem videos a couple of years ago and I have some of the passengers on facebook. I did a tandem in 2009, with 3 friends of mine in a small dropzone in Portugal. 9 years later, after I moved to Germany and started jumping on my own, and I made ~800 jumps, I saw one of the tandem masters on facebook and I added him. I thought it would be cool for him to know that one of his passengers is now jumping often somewhere else.
  22. I don't want to be harsh, but I think you need to adjust your perception on a couple of things: This is a subforum for general skydiving discussion. This is a family problem, not a skydiving discussion. I think other subforums are better suited. It is not your family duty to spend tens of thousands of dollars so you can have fun. If they want do it, that's awesome (for you), but I find that expecting it or demand it is out of line. If you need your family to financially support, your savings are not your savings. It is the money that thanks to them you have not spent. Expect them to have an opinion and a follow up action if you do what you want with your "savings" without their approval. Skydiving is expensive. You are making long term plans without even starting on the sport. You have enough money for a couple of AFF jumps, which is 1% of the money you'll spend skydiving. You are complaining about the price of videos. It kind of shows that you have no idea of how much money you'll need to spend to have a minimally safe skydiving career. A lowball break down: Gear price: Altimeter $150, audible $200, jumpsuit $200, helmet $200, rig $2500 License/maintenance: $300 per year Jumps: $3000 per year That just to be "that guy" with the ragged out gear with barely any skills. Multiply the gear price x3 if you want to be a shinny power-ranger like skydiver. Multiply the maintenance x1.5 if you jump a lot and get often new gear. Multiply x3 the jumps if you plan to jump every weekend, both days. And then add tunnel time (I guess around $900 per hour in your area), boogies and skill camps fees ($100-$200), canopy courses ($150-$200) if you want to be a rockstar. And that is without thinking about other things like cameras, wingsuits, multiple suits, etc. That is not to say it is impossible. But the first step to achieve it is having a realistic perception of who you are now, who you want to be and how to get there. My advice would be to follow a path to a successful career, where you earn enough money to jump as much as you can on your free time. Some skydiving rockstars followed the alternative way (basically committing everything they had to skydiving and tunnel flying), and they are the guys we look up to now. But don't overestimate the talent, work they put on, and help they've got to achieve it. Many of them are 2nd generation skydivers. And don't ignore all the others that did the same thing, and achieved nothing. Remember that the sky will always be there, you don't have to start jumping your ass off now (and doing 20 jumps a year does not make sense, you'll get stuck and bored fairly quick). Good luck.
  23. Yes. And they are paid by the manufacturer to do so, probably have signed a ton of waivers and have heaps of experience. That is not comparable in any way to someone asking if they can put a pilot slider on a sabre 2 210.
  24. It is also used in most paragliders, AFAIK. But they don't call them cross-braces, they call them diagonal ribs. These are interesting articles: https://www.advance.ch/nc/en/home/news-pages/tech-series/tech-report-sliced-diagonals/ https://paraglidingmechanics.wordpress.com/2016/01/21/structural-design-of-a-modern-paraglider/ It is my understanding that paragliding wings are much more advanced than skydiving wings. But they have a totally different set of constraints, and a bigger market, so the difference in development is justified IMO. Here some examples
  25. Some (elliptical) canopies are quite "searchy" on openings. They will shake you from side to side, no matter how you pack them. I am not sure there is a lot to do about it. Katanas and Velos are prime examples. I have no experience with Hurricane's, but I am not surprised. If you want to get rid of that I would suggest to change canopies to something less elliptical, or a more modern design with the openings a bit more under control. I can recommend an X-Fire for that. I think that the Echo from FW and the Crossfire 3 are also canopies with great on-heading openings.