Leaderboard


Popular Content

Showing content with the highest reputation since 01/20/2016 in all areas

  1. 6 points
    I also like the ability to "like" posts. It is an easy way IMHO to give certain posts more weight, helpful in a debate
  2. 5 points
    Hi guys, I'm developer of Skyduck - the new mobile app for skydivers. I'm trying to make the best app for skydivers, so I need your help. First of all I need your feedback. Now it is in open beta test and available for iOS devices (iPhone 6 and higher except iPhone SE) DOWNLOAD FROM APPSTORE What it is now? • Easy-to-use automated skydiving logbook • Jumps digital signatures • 3D visualization of jump • Detailed statistics on a graph • Vertical/horizontal speeds Blue skies, Igor
  3. 5 points
    Kind of like saying "Bless her heart" in the South... Wendy P.
  4. 5 points
    I went home today. Hop and pop from 6k with my awesome hubby. Almost got blown off the plane because I forgot about the prop blast. Perfect exit, perfect deployment, almost perfect landing. If only the winds hadn't gotten all weird, I'd have done at least one from full altitude. But that's okay. There's always next weekend. Life is good again.
  5. 4 points
    It’s Not What You Do (Or the Size of Your Dropzone): It’s How You Do It Jen Sharp -- since 2017, the Director of IT for the USPA -- is a woman of note for a long list of reasons. Jen’s a font of wisdom, a truly badass skydiving instructor and a businesswoman of uncommon strength and clarity (proof: she spent 21 years owning a successful small drop zone in Kansas). When she speaks, one should do themselves the favor of listening. If you don’t already know her story: Jen has been jumping since she was 18 years old. She opened Skydive Kansas directly after her college graduation, when she had a full-time teaching job and only 300 jumps. (Even then, she’d already been working as a static line jumpmaster, instructor, packer, rigger and radio-wrangler. Supergirl, basically.) Since then, she has traveled extensively as a jumper, an instructor and a public speaker. It was 1995 when Jen opened her dropzone: the days of saving up your vacation days for the World Freefall Convention; of spending Friday night to Sunday dinnertime on the dropzone; of single-plane 182 dropzones all over the place and, like, eight places you could go to fulfill a turbine craving. The close knit of those intimate little club-format dropzones has, of course, steadily unwound since then in most places. Adding skydiving to the schedule has become much more of a surgical strike: you get to the DZ at 10am and manifest immediately so you can make it to Crossfit by 4. You sift through regional skydiving events on Facebook, few of which require more than a handful of minutes’ worth of planning. You drive hours for a turbine. Jen takes on her alter ego, “Stu,” as a student (get it?!) on an AFF eval jump. It would be easy to mourn the loss of the small dropzone as an entity -- there are precious few of them left, proportionally to their previous numbers -- but Jen refuses to. For her, the “small dropzone feel” is the culture we should all be striving for, even if there happen to be seven Skyvans in the hangar archipelago. “The best vibes are at the places that keep the actual perspective, not just the party line, that we are all just people and all just want to have fun,” she begins. “The ones that embody safety in the active choices to care for each other. The places that assume the best in people. Luckily, that’s really simple to do.” Simple? Yes. Easy? Not necessarily, but according to Jen, that’s what we are really going for here: an inviting culture. Example after example proves that business success will follow that beacon significantly more reliably than it will follow volume. “What that culture is not,” Jen clarifies, “is the culture of the burned-out tandem instructor, hauling meat; a culture where an instructor never connects with their student; where they don’t even call them students, but passengers. If you call them a passenger, they are one-and-done. They know their place with you. But if you call them a student -- and you truly think of them that way -- the whole dynamic is going to be different.” How do you change the dynamic? By changing the way you see the person in the harness. “The public we meet is awesome,” she continues. “And we forget that! We totally forget this as instructors -- especially, tandem instructors. We forget that the person we’re taking is amazing. Why? Because they are not on the couch. A normal person is just sitting there on the couch on the weekend or maybe vacuuming or making snacks, drinking beer and watching TV. But this person is okay with being uncomfortable; with putting their life in your hands. They are excited about it, and they are trusting you. That already makes them a really cool person.” Doing an interview at PIA 2015. “If you want to see the average person, go to Walmart,” she laughs. “That’s the ‘average person.’ The person walking on a dropzone for the first time is not the average person. They are already living on a level that we should resonate with, especially since they’re new and they need our guidance.” For Jen, in fact, the “passenger” moniker is no less than a dishonor. “Homogenizing everyone who walks in the door into a ‘passenger’ has a couple of outcomes,” Jen explains. “It burns tandem instructors out. It burns the public out against skydiving when we make the assumption that they don’t know anything. Where did we even get that idea in the first place? Sure, they don’t know anything about skydiving, but they probably know a lot about something else.” “When I would take tandem students, I didn’t know who they were, necessarily,” she muses. “I would always ask ‘why are you here today,’ but they weren’t always going to tell their life story. I would find out later that we had just taken a brain surgeon, or the senator from some western county in Kansas. You never know who that person is. They’re just walking around in their sweats because you told them to dress comfortably. So -- if you’re starting to feel the burnout, try allowing yourself to be curious about them. And, if you’re a dropzone owner, strive to instill that curiosity in your instructor staff.” Who knows: That curiosity, manifesting as totally authentic friendliness, could end up defining a regional dropzone’s niche. “If drop zones realize how many kinds of niches there are to occupy,” Jen says, “I don’t think we’d ever talk in terms of ‘small,’ ‘medium’ and ‘large’ dropzone. You can occupy a really strong, functional cultural niche without being the biggest DZ around, or having the most airplanes, or doing the most tandems. As a dropzone, your niche really comes from whatever it is that you want to bring to the table -- and your resources and your passions -- and you succeed when you fulfill that to the max. I think a lot of places are figuring that out, and that’s contributing to the fact that we now have more of a variety of dropzones than we ever have before.” Y’know that bit about a cultural "niche"? Jen insists that it’s not just about feels. It’s about returns, too. A strong niche can turn into a marketing advantage. “Not every dropzone should compete on price,” Jen notes. “It's conceivable for a smaller DZ to actually make more profit by doing less jumps. Profit is not the same as gross.” “It’s as straightforward as reaching the fullest manifestation of what you’re capable of doing,” she adds, smiling, “and, of course, always trying to get better.”
  6. 4 points
    I am one of those hands that Dave trained...Was working on a rig- and i got stuck... I pulled out my phone and started to call Dave. Than it hit me again... I hope that am half the rigger he was. Don't have the heart to remove number. Until the next life Dave...
  7. 4 points
    World Meet Z-Hills 1981..... the boogie between competition jumps I got grounded for a low pull (gee seemed normal to me) and Dave noticed that scene. Grinning and on the sly, he pulled off his boogie wristband and gave it to me. "Keep jumping, I'll get another." One of a kind, ol' Dave. Miss him. R.I.P to a good man. In pic, he's on far right in younger days.
  8. 4 points
    Dave had many "saves" himself and when you multiply that by all the riggers he trained the numbers would be in the thousands. A life well lived.
  9. 4 points
    I am 69 years old and in my 51st year of skydiving. I had two cutaways, one over Pope Valley CA in 1972 using military surplus gear and one over Rantoul Illinois using modern gear in 2005. I see skydiving as a very risky sport and see myself as a lucky cautious participant. Perry Stevens D-51 taught me how to jump in 1968. One bit of advice he gave me was: "when something looks marginal to you, take a pass on it, ALWAYS." Marginal planes, marginal gear, marginal jump plans, marginal weather etc. I've done nearly everything I can to mitigate risk. I jump with an RSL and a Cypres AAD. I don't swoop, wingsuit or BASE jump. I practice emergency procedures. I get gear checks before I board. I was a very early AAD user, buying an SSE Sentinal 2000 as soon as they hit the market. Back then experienced jumpers who wore AADs were ridiculed, but I didn't care. When I could finally afford a square canopy, I bought a conservative one (Triathlon) that would put me at 1.2 to 1 wing loading and never downsized even on subsequent buys. My reserve is almost as big as my main. If steady winds exceed 18 mph I wait for better conditions. I passed on manifesting for Twin Beech jumps on really hot days with loads that clearly exceeded max gross limits. I passed on really green Cessna piston jumpship pilots. I passed on having beer with lunch at a DZ where it was SOP. I could go on but you get the picture. I am not gloating or saying I am better than people who take more risk than I do. My point is that there are many things you can do (or more accurately NOT do) that will substantially reduce risk and still allow you to participate in the best sport on the planet. You won't be sharing granite skimming wingsuit videos with your friends but you can still have a great time.
  10. 4 points
    So funny clicking this link all these years later to see that Squirrel completely and utterly dominate the PPC charts... Hahahaha
  11. 4 points
    I know I sound like an old man yelling at kids on his lawn, but is this the picture that should be on the cover of the official publication of the USPA? Should the USPA really be promoting lighting your canopy on fire? It gives it a sense of legitimacy and may even make some people think they can go to the SIM to find out how to do it.
  12. 4 points
    You need a real rigger. A rigger that puts a 20 year life span on a reserve is a rigger to run away from.
  13. 4 points
    You guys are doing fine! It takes time to do things like this.
  14. 4 points
    I'm, with you, Tim. There is not one thing better about it. 100+% garbage. Jerry Baumchen PS) Anyone know where the Messages are? PPS) And, where did the PREVIEW POST go? PPPS) And, why the double-line spacing?
  15. 4 points
    Utter Rubbish. I guess its a good excuse to abandon DZ.com for good. If it ain't broke...….. I'm sure quite a few regular posters will disappear from here.
  16. 3 points
    Aim for the dzo's car. Sorry, couldn't resist.
  17. 3 points
    Maybe half a dozen. The most fun one was a military student at the old Brown Field DZ, who I ran into at the Argus. He regaled me with his exploits (including freefall in his military static line program) and told me I should learn to freefall, that static line sucked. He worshiped Denny Chalker, an ex-Seal who was also working at Brown at the time - and who had talked all of them into coming out to Brown to do AFF. I nodded along to his stories while I got my turkey sandwich. We got back to the DZ. About a hour later the class was finished and they paired me up with . . . the same student. He saw that I was going to be his instructor and turned a little green. Then Denny Chalker, hero to all young Navy guys, walked up; he was my reserve side. "Uh . . . . you know Master Chief Chalker?" the kid asked me in a low voice. "Yeah, we go way back," I told him. "Hey Bill," Denny asked. "Would it be OK if I do main side on this one?" I pretended to think it over and then said "Sure, Denny, just this once." Denny laughed. I thought the kid was going to pass out.
  18. 3 points
    Dave was one of the greats in skydiving and parachute rigging. Always cheerful. Always helpful. I'm going to miss him.
  19. 3 points
    Looking at the JSON file, it does seem to be a direct dump of the GPMF data embedded in the MP4. Here's a collapsed view of what's in the file which shows the headers but not the data itself: Looking at the "GPS5" key, it seems to include only 5 values: latitude longitude altitude 2D speed 3D speed In addition, nested in the GPS5 data, it occasionally includes two more pieces of information: "fix" - This seems to be the GNSS fix type (3 for 3D, 2 for 2D, etc.). "precision" - If I had to guess, I'd say this is position accuracy in cm. That's not too bad. There are a couple of things missing compared to FlySight's data: Components of 3D velocity. In principle you can recover the vertical component from 3D speed and 2D speed, but there's no way to get north and east speed directly from this data. You would have to go through latitude and longitude, which will likely result in some additional error. Components of accuracy. FlySight includes horizontal and vertical position accuracy as well as speed accuracy. Number of satellites used in the fix. This can be a useful diagnostic, but there is arguably some overlap with the position accuracy figure reported in the GPMF data. I suspect at 18 Hz this is GPS only, for the reasons given above, but it may be that if you drop down to 10 Hz the unit will automatically switch over to GPS + GLONASS. Here's the relevant table from the u-blox M8 datasheet: Assuming their velocity is coming from the same place FlySight's is, I feel like the GoPro data would be just fine for most uses.
  20. 3 points
    Ouch, so much white space. Did they buy shares in scroll wheel manufacturers? The old school site was good because it was information dense and one could see a lot of topics and posts at once. At least it is better on a phone -- lines wrap instead of being very wide and requiring the smallest possible type to avoid scrolling left and right. Making the site phone-friendly would have been one of their goals. But on a desktop with a decent sized screen, it really wastes space. (Setting text size to 70 or 80% helps a little in getting text back to original size, but doesn't do much for the white space.) This kind of crappy design is unfortunately more and more common these days, I guess for fat fingers on small tablets. Have we lost all records of what threads and posts we've seen? One can't start where one left off; one is dumped back to post #1 on page #1 even if it is a thread one has been following while logged in. The addition of drag and drop files is a big plus of course. A couple Facebook rigging forums must have been benefiting from having easy uploads from phones. Other opinions and discoveries about the site are welcome...
  21. 3 points
    Wolf is right about staying Hydrated an well fed. Stay healthy and stretch often. You will be suprised at how sore you can get after a few jumps. Bring a lunch an bunch of snacks. Lots of water. If im not picking some jumpers brain for advise im either eating,stretching, or sleeping. Above all else once you get over the I could die doing this thought you will start to have so much fun either during freefall or under canopy. They are 2 totally different experiences..Enjoy them both. Listen to your coaches and don't over think anything. Stay loose an hold your arch.
  22. 3 points
    20kN has it right. I will add if the plane is not depressurized, you won't be able to open the emergency doors. If it is depressurized, but still at high altitude, you will have to stay on oxygen to function, and so it would be hard to get to a door unless you are right next to it, and it would have to be an over-wing hatch door. I do think you could get out of a hatch with your rig on. So you need two events: 1. A plane that is depressurized 2. A plane that cannot fly If both of these are true, there has probably been a catastrophic air-frame failure, most likely a terrorist attack or a really bad engine failure that damaged the wing / tail and the fuselage, so in addition to having to deal with oxygen and getting to a hatch and opening it and getting out into a very high slipstream (300+mph?) the plane could be spinning or tumbling as well, a very challenging situation. You would want to stay on oxygen until below 20k ft, or try to hyperventilate on oxygen before exiting.
  23. 3 points
    Short summary: A software kludge to hide a hardware defect.
  24. 3 points
    youtube link streams right from the post. again NICE
  25. 3 points
    I’m not feeling the love. I think he had to do something to cater to the audience with small screens. But this is looking like it could be the end for me. I’ll wait and see for a while. I haven’t found a search function yet. Without that a ton of rigging knowledge will be inaccessible. There is too much content here for this format to be effective.
  • Newsletter

    Want to keep up to date with all our latest news and information?

    Sign Up