Binary93

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Everything posted by Binary93

  1. Binary93
    There's a thread on facebook about bottom parts of lines (just above risers) failing quickly because RDS isn't removed fast enough. There's also a lot of mention about sleeves for the lines which should take the damage and lengthen the life of the lines. Can anyone here share pros and cons of different designs? Is there a standard design that you would recommend? There's a mention of a fatality in Thailand because of a cut slink due to improper sleeve design. To sum it up/simplify, I'd like to make this for my canopy, what is the proper way? Thanks!
  2. Binary93
    Pilot Emergency Parachute
  3. Binary93
    I live and jump in Serbia where we use meters. Pilots use feet (because that's the international convention I guess), but jumpers use meters and have meter altimeters. When a pilot is new with skydiving, you have to make sure you communicate if you're going to 3000 feet or meters :) My 117th jump was in the US where I rented equipment, and guess what, the altimeters are in feet. Before the jump, I converted the few critical altitudes I need (deployment/decision altitude/hard deck/no cutaway) and just watched for those. There's no real reason to do any maths, you're not solving differential equations up there. You have series of altitudes upon which you base your decisions (unless you're swooping for example where you need a bit more precise numbers I guess). For what is worth, you could have them marked as A, B, C, D... on the altimeter and never know how they translate to real world coordinates.
  4. Binary93
    Not even close, from my experience (and a few folks I know who fly/flew it) Raptor is far more steeper and much much longer recovery arc. Fairly ground hungry. I've flown Icarus World X-Fire (not NZ Crossfire) for the past ~100 jumps and I've gotten used to its no-snivel-ridiculously-on-heading-openings-no-matter-what-you-do and have now made a few jumps on Raptor (135ft, ~1.7WL). I find the openings on Raptor very twitchy, it oscillates quite a lot during the snivel and really requires to be flown all the way through inflation (something I apparently need to learn to do a bit better). Anyone flying Raptor has any tips on packing? Do you choke end cells by rolling them to promote more on-heading and more controlled openings or anything similar? Anyone else flying it wants to share their impression of the openings?
  5. Binary93
    Here's one:
  6. Binary93
    Forgot to add [joke] [/joke] around it
  7. Binary93
    Did you try checking on the internet? :) https://uspa.org/dzdetails?accountnumber=342326
  8. Binary93
    I guess you'd already post an update if you wanted to share something, but I have to ask regardless. Any updates?
  9. Binary93
    Thanks Joe. While I fully agree with you, I disagree with your post being relevant and constructive towards the topic. To put it in an analogy, it's as if someone asks "What's the procedure for handling side-by-side malfunction, land it or cutaway?" and you answer "Check your gear, don't have a side-by-side". Sure, prevention is the best, but lets also talk about situations where prevention fails. Even "bulletproof" skilled folks can fail at some point for whatever reason, there's no such thing as perfect. Lets share knowledge, experience and opinions and learn.
  10. Binary93
    Much wise, very wow, so constructive. Thanks for contributing! Now go through all incident reports and suggest people don't end up in those. Not sure why anyone ever does anything wrong...
  11. Binary93
    Thanks, I was asking more towards what should the cameraman do. Wait for the cutaway, then try to track (or if that's impossible with an inflated drogue proceed to cut the bridle immediately after TI cuts away)?
  12. Binary93
    From SIGMA manual the TI procedure is clear I guess, so the cameraman should wait for the cutaway and then track?
  13. Binary93
    The video below shows such a situation. Of course, ideally you don't end up in this situation, but lets say you do. Should the cameraman cut the bridle while still in tow with tandem or should they wait for the tandem cutaway? At one hand, by cutting away immediately, the tandem loses drogue, accelerates, probably can't cutaway (no force on the dbag, etc). On the other hand, the cameraman can hit the reserve canopy upon deployment. My question is, what's the procedure here (both for cameraman and the TI)? When should the cameraman cut the bridle? When should TI cutaway? Disconnect the RSL or not? If yes, when should they deploy the reserve? https://www.facebook.com/story.php?story_fbid=4495926453812875&id=1026073447464877
  14. Binary93
    Do you know of any incidents where this might have contributed? (the concern is perfectly understandable and logical of course, just curious)
  15. Binary93
    You usually don't sew them but wrap them around the reserve flap. I don't use a bungee but a magnetic variant (at least it will release at some point during the cutaway)
  16. Binary93
    A friend of mine has a chinmount(.com) on Kiss helmet. He recently had a cutaway and said he had trouble looking down for handles (due to the mount hitting his chest when he bends his head down). Not sure on the geometry of vmag (and if it differs from chinmount), but you might want to check this while under canopy next time, to be prepared for it if nothing.
  17. Binary93
    Thanks for the answer! Is there any other way to create a tension knot (I thought twisted steering lines were the only way)? When you're packing, during/after flaking but before wrapping the canopy into a cocoon, you're supposed to pull the stabilizer material outside and leave the lines inside (in the video below, from 6:15 to ~6:23 for example). If you leave the lines over the material, they can burn the fabric during opening and damage your canopy. Not sure if there are any other possible side-effects.
  18. Binary93
    Hi folks, A friend of mine had a cutaway yesterday (video below). He didn't untwist the toggles for at least few weekends of jumping (the twists are visible on the video). During packing, he flakes (pushes material between AB, BC and CD outside and lines inside) but he doesn't clear stabilizers etc. During the opening, it looks to me as if stabilizer is trying to inflate while there are lines over it. My question is, do you think the only cause for this is the twisted brake line (leading to a tension knot)? Do you think not clearing stabilizers during packing can also contribute towards this (or something else)? I expect the answer to be "yeah, tension knot, untwist your brakes" but posting just in case I'm missing something and there's more to be learned. Thanks!
  19. Binary93
    For sure, sometimes. Also sometimes. And also this, sometimes. Some people measure their replication organ by the number of jumps or the inverse of their canopy size, some people want to calibrate a bit to your experience (it's not 100% correlated but someone with 1000 jumps will often have better skills and be more aware of different jump aspects than someone with 100 jumps, etc.), some people might just be asking for chit-chat/to make conversation. Ultimately, don't give a shit I guess. The main thing I guess is, stop caring yourself about the numbers, just jump, improve your skills and enjoy the sport.
  20. Binary93
    Not sure if maybe different "classes" of hard openings should be considered when talking about this? Sudden inflation (either due to slider getting down/being down, small or ripped slider, "act of God"...) Rubber bands breaking early, canopy starts inflating before lines are stretched (line dump) Riser covers too stiff, canopy starts inflating before they release so when they finally do it hits you (similar to line dump, just at the risers) High speed opening (failing to slow down sufficiently after FF for example) ... I guess noone has any statistics (don't know how would one get it) on how often which cause happens?
  21. Binary93
    I doubt it's ALWAYS riser covers causing hard openings, rather that they can be the explanation for more or less frequent hard openings (you can obviously easily cause a hard opening on any riser covers by leaving the slider down on packing). Here's the Bill Booth briefly talking a bit about this (35m17s to 37m17s):
  22. Binary93
    Could someone please add some reference/image/more details on this one, for us, young padawans? :)
  23. Binary93
    In Serbia, at least 15 years to become a student, at least 16 years to get a license. Parents sign waivers.
  24. Binary93
    Did you change/do anything at all regarding your equipment during your break? If both you and someone else packed it and you got hard openings I guess we can dismiss packing issues (though it could be a fairly unlucky coincidence). Maybe have someone stay with you on the jump and record your opening?
  25. Binary93
    I cannot tell you what happened to you, but I can tell you that I know folks who were nauseous under their first canopy rides (I went through static line course meaning my first 6 jumps were canopy-only from 1200m, no freefall). I myself had quite a problem with that for the first several jumps, whenever I would turn my canopy even slightly I'd get the nauseous feeling in my stomach all ready to throw up. It went away as I got used to the feeling. I did however have problems with throwing up while driving in a car or riding roller-coaster rides so it was pretty "ordinary" for me to experience that under a canopy, but as I've said, I don't think it's that uncommon. Highly doubt it's altitude sickness. If I had to guess, I'd agree that it's probably sensory overload/experiencing new type of motion, and that it's something that will go away as you get used to the experience.