skydiverek

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Everything posted by skydiverek

  1. skydiverek

    Terms

    The shape/dimensions of the container.
  2. Original Dytter uses 4ea 399 type batteries, although there have been posts here that folks have used 355 type batteries.
  3. Scary...: http://www.youtube.com/watch?v=5rn1OI25bH4
  4. 101 years old is the oldest, according to Guinness Book of Records.
  5. Few questions about this tunnel: 1. How many fans does it have? 2. Are they located below or above the flyer?
  6. I wouldn't like that. About 50% of threads don't interest me (I judge them by the title), so I don't want these "boring" threads to remind me about their existance . The way it works now is great for me.
  7. I have 50 jumps on my Spectre, but it was bought used. It is supposed to have 250 jumps total. Steering lines seem to be correct length (bow behind a canopy in full flight).
  8. I just experienced the same buckling after a SOFT opening on my Spectre 190, WL 1:1. Did 5 jumps yesterday, and the bucking happend on ALL of them. NEVEr happend in the previous 40 jumps. It was w windy day though - could it be the cause???
  9. Currently, I jump Spectre 190 with 825 lbs Microline - it fits fine with a very shorty closing loop. Now, I want to reline it with Dacron. Does anyone have expreinence with Dacron lined Spectre 190 in Infinity I-45? How is the fit??? Thanks in advance! Bart
  10. This is great!: http://www.robnik.com/SapElastPict10.htm
  11. Documents, patents, manufacturers, FAA, great source! Maybe make it sticky?: http://www.ukskydiver.co.uk/cms/index.php?option=com_docman&Itemid=209
  12. The Spectra ripcord is still in the FAA approval process.
  13. Mark, What will happen if I check both '3D SPACER FOAM BACK PAD AND LEG PADS" and 'DELUXE BACKPAD' on your order form? They are NOT marked as 'One Of' selections.
  14. Yeah...ya got the whole rest of your life to get it open and flying, what's the problem?!
  15. TSO tests require the reserve to be packed with three full twists in the lines (3 x 360 degrees), right below the slider. The reserve must be functional and untwisted withing a few seconds. So, what is the problem here?
  16. Wow - be careful: http://www.youtube.com/watch?v=bs2PZc6U8Zc
  17. Jay Stokes will be in Poland in October - PM me for details.
  18. I doubt they started, since making a rig takes approximately 8 business hours
  19. Is the Spandura PC pouch and a Spectra reserve ripcord standard now?
  20. Isn't this (attached) the best of both worlds? "Freefly-Hacky: Love the security of your freefly handle, but miss the grip of your hacky? Continuing a legacy of innovation, Mirage Systems has introduced a solution to give you the best of both worlds. We have designed the Mirage Freefly Hacky. The Freefly Hacky is identical to the traditional hacky with the exception of a tuck tab that snugly fits under the corner flap of your main container. This allows the jumper to get a full palm's grip on the handle, while greatly reducing the chance of a premature deployment. Gone are the days of a pilot chute that walks out of its pouch! Just like the Mirage Freefly Handle, this hacky remains in-place until deployment, even at freefly speeds! The Freefly Hacky option costs no more than the Freefly Handle or the traditional Hacky Handle. It's just one more way that Mirage provides extra value in a rig that is truly custom built for you. If you wish to choose the Freefly Hacky, just specify in the Special Instructions section of your order form."
  21. Dacron lines, possibly. Here is what BILL BOOTH has said on dropzone.com about DACRON LINES. Great source of info!: "My tests show up to a 300% increase in opening shock felt by the jumper using Spectra vs. Dacron suspension lines. It is not always that much different. It depends on how quickly the force is applied...and canopy makers have done a good job of designing canopies that open slowly enough to allow the routine use of Spectra. However, when a rare hard (quick) opening happens, Spectra lines will definitely make it hurt more." "Tandem canopies are public transportation. Little old ladies and parapelgics jump tandem. Dacron lines give lower opening shocks. It's that simple. This might not matter much on a "normal" opening, but if someone make a small mistake packing which results in a super fast opening, the Dacron lines could save somebody's grandmothers life. I know Dacron is bulkier, but I've seen no evidence that Dacron lined canopies have more malfunctions. In fact, I believe the opposite may be true." "Anyone who doubts that suspension line stretch is a factor in reducing the opening shock felt by a jumper, should make a bungee jump...only replace the normal stretchy bungee cord with a stainless steel cable. What's going to happen when you hit the end of that steel cable? Your leg is going to be torn off, that's what. Now remember, Spectra line stretches about as much a steel cable." "If you are not using Dacron lines, they would help. They stretch a little, and also slow the slider down due to surface friction. Spectra (micro) line does not. If you are already using Dacron lines, and still having hard openings, get a canopy that opens slower." "The best way to avoid injuries from that occasional super hard opening (as well as the hard openings themselves), is not to jump no-stretch lines. Ask yourself, "Do I really need the (slight) advantages no-stretch lines offer?" If not, get Dacron. Your body will thank you, because even if you are not ever seriously injured on any single jump, each even slightly hard opening on no-stretch lines is damaging your body...and it all adds up." "Spectra (micro line), Vectran, Kevlar, and HMA are "no-stretch" lines. They do not "absorb" opening shock the way Dacron does. This means that the same "hard" opening can hurt you a lot more. It's like doing a bungee jump with steel cable. The same force is applied...but a hell of a lot more shock is felt by the jumper. All the opening shock caused broken harnesses (two PDF tandem harnesses recently broke), injuries (a guy just broke both femurs), and fatalities (4 in the last two years that I know of) have all been on "no-stretch" line canopies, and could probably been prevented if Dacron line had been used. No stretch line is used because it is thinner, lighter, and has less drag than the same strength Dacron. While this is an "advantage" in a high speed swoop, it has no place in tandem. 85 year old grandmothers jump tandem. They, and many other tandem students, need the softest opening shock possible. This is why we only use Dacron line on our tandem products. Not to mention that our tandem equipment was NOT drop tested with no-stretch lined canopies. I don't care if you have 1,000 jumps on a particular canopy with no-stretch lines with no problems. Ever canopy opens hard eventually. When that happens, I want some "bungee cord" between that canopy and the tandem passenger." "One thing is for sure, if you jump "no-stretch" lines, especially Spectra (because it's so slippery, and reduces slider drag) your chance of being injured or killed by a hard opening shock is much greater than if you jump Dacron line, which stretches just enough to absorb some of that shock before it hits you." "Spectra (or micro-line) is strong and tiny, so it reduces both pack volume and drag , which means you get a smaller rig and a faster canopy. Unfortunately, It has a couple of "design characteristics" (this is manufacturer talk for "problems") It is very slippery (less friction to slow the slider), and stretches less than stainless steel. This is why it hurt people and broke so many mini risers when it was first introduced. Now, I must say that the canopy manufacturers did a wonderful job handling these "characteristics" by designing new canopies that opened much slower than their predecessors. However, the fact still remains, that if you do have a rare fast opening on a microlined canopy, Spectra (or Vectran) will transmit that force to you (and your rig) much, much faster, resulting in an opening shock up to 300% higher than if you have Dacron lines. (It's sort of like doing a bungee jump with a stainless steel cable. At the bottom of your fall, your body applies the same force to the steel cable as it would to a rubber bungee cord, but because steel doesn't stretch, your legs tears off.)." "Reinforced type-17 webbing risers rarely break. They have a new breaking strength of around 3,500 lbs. This is not that much less than type-8 risers breaking strength of 4,000 lbs. The real difference is whether you have mini rings or large rings...and the difference here is in cutaway forces, not breaking strength. While properly designed mini-ring risers can easily release even a 250 lb. jumper in a 3 or 4 "G" spin, the problem is that it is harder to manufacture mini-ring risers correctly. What causes any riser to break is usually a combination of a heavy jumper, a hard opening canopy, and no stretch (Spectra, Vectran, or HTML) line. Broken risers on Dacron lined canopies are very rare indeed." "Single rear riser break is very rare. Risers usually break where they go around the large harness ring. It is obvious that since the "reinforcement" in type 17 risers is below the confluence, it does nothing to prevent this kind of damage. When this riser broke, it "released" a lot of energy, thus preventing much more serious injury of the jumper. Which is a good thing. The only way I know of to prevent "killer" opening shocks, is not to jump Spectra (Microline) or Vectran. They don't stretch at all, and therefore do nothing to help absorb the energy of a really hard opening. As long as we insist on jumping non-stretch lines, incidents like this are bound to happen. (Canopies with Dacron lines can still open hard, but much less shock is actually felt by the jumper.)."
  22. If the Slink bumer was inverted, how come the Slider ws able to touch the Slink? Did the slider go OVER and down the Slink cover, and then touched the Slink?
  23. Yo can still use Slinnk Covers - even with Type 8 risers. Riggerrob has done it.