IJskonijn

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Everything posted by IJskonijn

  1. I'd rather not risk my neck on the word "might"...
  2. Detecting canopy deployment from freefall is likely easy to program, but even L&B's algorithm is unreliable for hop & pops. My viso 2 logs about half my jumps, and my audible regularly goes off during front-riser landing (since I'm exceeding 13m/s on fronts easily). Granted, my opening altitude is at most 10m below the airplane, and my canopy doesn't do that new thing called "snivelling", but still...
  3. I've flown a Silhouette 190 at a 1.1 WL, putting me solidly in the "expert" category according to PD. I started jumping that canopy around 150 jumps, and never had any issues with it, even in less-than-ideal conditions. It has a flatter glide, better flare, lower descend rate than my Lightning 160 at the same exit weight (WL 1.3-1.4), and felt really docile and forgiving in its handling. Maybe PD has a different flying characteristic in mind with their WL interpretations, but I think their rating is extraordinarily conservative for this canopy design. It definitely flies a LOT better than full F111 designs at lower WL, the ZP topskin is helping a lot by preventing the air from bleeding out the top. Also note that my Silhouette 190 is pretty old, and the ZP has likely increased in porosity since.
  4. Dutch KNVvL membership (specifically membership of the Parachute part) does provide secondary third-party insurance (secondary as in: first ask your own insurance, if they don't cover it then the RNAA insurance will cover it). The coverage is up to 1.5M€, with €100 to be paid by yourself per case. Relevant information in Dutch: http://parachute.nl/waverzekering.html And yes, the KNVvL has roughly the same licence structure. We also use A-B-C-D licences, and while the requirments to get them are often (slightly) different, the general level is the same. But, we don't have a sticker system for the different disciplines. As soon as a coach thinks you're safe enough in the discipline, you can go have fun with others.
  5. In fact, the Dutch basic safety regulations require that you wear an open-face helmet during the first 25 wingsuit jumps!
  6. My personal experience with the Silhouette 190 is one of joy. I bought it at around 150 jumps as part of my very first rig, and have loved jumping it ever since. It's a forgiving canopy in its handling (much like the Navigator), has a decend flare but is still fun and sporty enough to learn more advanced techniques on. So go talk with your instructor (who has seen your flying) about this, and give the Silhouette 190 a test jump. So far, I haven't heard of anyone who was disappointed with it.
  7. Agreed, if you have any doubts about your reserve, go bigger until you stop having doubts. My rationale is this: If I'm on my reserve canopy, it is very likely that I'm also: 1. at low altitude, 2. at a less-than-ideal spot, 3. in a high-stress state of mind. For each point separately, I would rather have more fabric (=slower decend-rate, more time to react and think) than less fabric over my head, and combining them makes that even more valid. The only counter-argument I've heard so far is high-wind situations. You could be penetrating into the wind on your main, but going backwards under your (lighter loaded and larger) reserve. By the way, I have a PDR193 reserve (WL 1.1), a Lightning 160 main (WL 1.3-1.4), and occasionally a Silhouette 190 main (WL 1.1), at roundabout 650 jumps. I have no inclination whatsoever to downsize any of my canopies.
  8. A protec will work perfectly fine with an audible. Just loop a rubber stow around one of the bars in the ear openings, and use that to hold the audible. I jumped like that for easily 150-200 jumps before switching to a fullface. Ninja edit: assuming a full shell helmet, not the half shell.
  9. One in just under two years :). Still on my first '97 Nissan Micra, small enough to fit in my back pocket and big enough to get me where I want to go. Also, it's got bloody good fuel economy for a 20-year old car, I'm averaging 18 km/L.
  10. CRW (Canopy Relative Work, also known as Canopy Formation) mod is the flap on the bottom reserve container flap that goes over the top reserve flap (the one protecting your pin). It is meant to prevent lines from catching under the top flap and exposing your reserve pin. It's nice to have if you are planning to do CRW, but otherwise has no use. In general, I would not walk away just because of the age of the rig. If it is technically sound, fits properly and has all the bells & whistles you want (RSL and AAD for example), it should be perfectly good. Although as already mentioned, it is likely not suited for freeflying. That said, only a rigger is really able to tell if it is technically sound, so go find one and have a chat with him/her about this rig.
  11. The Note is a story in its own, but in general it is easier to short-circuit (read: set on fire) a battery when it is not contained in the product. Throw a battery and your keys together in a bag and the keys might just do the trick of connecting the leads. Makes me wonder, do the rules allow us to make a product that holds the batteries in a safe way, but allows an end-user to easily take out the batteries? How shall we call something like that... maybe 'holder' is a good word? =)
  12. Agreed, but teaching people what looks funny and teaching them to speak out about it is also very important. You can only teach them so much about how something should be done, there's just too much to cover it all.
  13. Checking if a parachute of unknown history is airworthy is a rigger's job. The best you can do is go to the DZ where your AFF is scheduled and ask for their rigger to have a look at it. Prepare to tell him everything and anything you know about the parachute. Also, ask away at him. Many riggers are friendly people who will gladly answer questions, especially if you lubricate them with their favourite drink! As for packing, look into packing courses given by your DZ. They will likely use DZ equipment, but that's no issue as the packing techniques are pretty much generally applicable. If your parachute requires special techniques, then it's unlikely to be a beginner-friendly parachute anyway. Do your AFF with the student equipment the DZ will provide you with, and start learning about gear after that. Talk with your AFF instructors about the suitability of that parachute for you, there are too many variables for a bunch of folk on an internet forum to give you a solid and clear answer.
  14. Granted, I'm in Europe, but I always get my small-time stuff (a meter of webbing here, two pieces of hardware there, etc.) from my local master rigger. He uses enough of it to make shipping from paragear worth the effort, and charges me pretty much the equivalent price.
  15. You can't. Each of those devices will be very helpful for you. Just recognize that each have their own positive and negative points. The final choice depends on your personal needs. I personally use an Optima to great satisfaction. It has a more difficult menu structure & operation, I required a good hour of messing around with the manual open in front of me before I got the hang of it. But the upside is that it offers canopy alarms (VERY useful for learning consistent patterns & learning the sight picture at different altitudes) and it has the option to store different alarm profiles. This makes for easy switching between disciplines, where you want the alarms to go off at different altitudes. It is more expensive than a Solo, but it also offers a lot more options.
  16. I see the low-profile metal D-ring or soft loop ripcord with CRW-dogs occasionally, mostly as a way to prevent the ripcord being dislodged during wraps. It's bad enough if your cutaway pillow gets ripped out (I've seen that happen once), but a multitude as worse when your reserve is activated while you're still working yourself out of a wrap/entanglement. Personally, I think pillow-type reserve ripcords are a fashion fad more than anything. I cannot think of any serious advantage they have over old-fashioned D-ring handle.
  17. We hardly ever do tandems, since our proximity to EHAM limits our altitude to 6000ft max. We mostly jump a mix of static-line students and sports jumpers. Adjusting the club gear to include a seatbelt by default may be an option, but we definitely cannot mandate that on sports jumpers individual gear. The belting method in the FAA report looks solid, but it has the issue that it's not always that easy to route it through legstraps. Taking myself as an example, I prefer to have my legstraps really tight, so fitting anything through it is very difficult. MLW by itself is much more accessible.
  18. How to find a master rigger: - Look up the closest dropzone to your place (use the dropzone locator on this website). - Be bold, call them (or better, visit them if reasonably close), explain your school assignment and ask if they can hook you up with a master rigger. The worst answer you can get is "no", and it only gets better from there. Most people in this sport that I know would be more than willing to help you. At my home dropzone, we used old surplus (no longer airworthy) parachutes to help a school project a while ago.
  19. This thread went maximum zombie. It was created in 2004, and resurrected yesterday. The issue is simple. We cannot by law (generic, pretty much every civilized country has such laws) require people to divulge what illness they have. Only doctors can give you a medical, and doctors must (also by law) keep the information you give them confidential. There are extremely good reasons for these laws and zero reasons to make an exception for this sport. Full Stop.
  20. I'll have a closer look at our jump plane next time I'm there, but in my memory there is nothing but the normal body panel in that location. Obviously our pilots don't mind, since we've been using this configuration since forever and I never heard one complain.
  21. A standard GoPro mount couldn't be made more snag-happy even if they tried! And be careful of mounts without camera's. During CRW, I've hooked my canopy on my buddies' camera mount even though the thing was low-profile and the camera was off (mobius cam).
  22. In our C182 (Baksteen and me are from the same DZ), nobody is sitting against a cargo door. The closest person to the door is the jumpmaster, who has the door on his left side. The other door is on the pilot-side of the plane. Behind the pilot are no more doors. I agree in general that sitting leaning against a door is asking for trouble.
  23. How is the seating configuration in that case? From the picture my guess would be: one goes with the back against the bulkhead, facing forward. one goes with the back against the pilot seat, facing backwards. (right-hand side in your picture) The jumper in front is facing backwards, with his back against a metal plate screwed in front of the control panel (or sitting very carefully to avoid shifting the lever for the cabin heat, or worse). How does the last jumper sit? In your picture that would be the left-hand side nearest to the photographer. Does he sit with his back to the side panel, or does he sit without back support? Facing front of facing back?
  24. Container size does nog correlate one to one to the canopy size. Pack volume of a canopy depends on many factors, including size, type of materials (ZP packs bigger as a rule of thumb than F111), amount of reinforcement tape used in construction, type of lines, etc. As a practical example: my Silhouette 190 packs smaller than my Lightning 160. Even though its 30 sqft smaller, the Lightning is full ZP, newer, has thicker Dacron lines, and uses more reinforcement tape. The Silhouette is a hybrid with ZP topskin and F111 bottom skin. It also has lots more jumps on it, which tend to increase the permeability of the fabric and decrease pack volume. Combined with thinner lines means it packs smaller. Shortening or lengthening the closing loop does give you a bit more leeway in packing different canopies in a container, but the closing loop should always be short enough to hold on to the pin with sufficient force (to prevent a premature deployment because the pin just fell out). And since there is a minimum length the closing loop can be, there's a limit to the minimum pack size canopy you can fit safely.