lyosha
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Everything posted by lyosha
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I bought one of those magic 1993 Sabres with
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Which by itself is a very sad and scary sign of the times.. Structured progression with a focus on skills vs gear, would do so many people so much good in practicing this sport long, safe and without incident, as well as increasing the fun and skills once one finally does get into that big suit category. Getting a big suit asap seems to be the new 'teach me to swoop...' I agree, but I think that the Freak is the biggest culprit (I noticed you edited my quote). It was marketed heavily on how easy it is to fly. All the cool kids instantly wanted one and whatever guidance was given in the fine print (175 jumps, freeflying experience, etc.) literally all of my friends found some way to reason around or simply didn't care to know. Did I mention I know someone that bought one having three jumps in an i-bird?
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Up to your DZ S&TA. I attached a GoPro somewhere around skydive 6X after my first cutaway so I could have a video logbook to debrief from. I put in some hours of research into safety (i.e. I used Grellfab mount from get-go). As opposed to some jumpers I know that had a cutaway on jump 201 because of a wrap on their brand new GoPro mount (good thing they waited until jump 200 and were so eager to jump a GoPro they decided nothing bad happened in 200 jumps and they didn't actually need to think shit through). While this is anecdotal, a much more reasonable approach would be a "camera course" where risk factors and mitigation techniques are discussed - similar to canopy course that's required for a B license now. In before people start accusing me of having "mad skillz".
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I think 80%+ of Freak owners I know had way less than 175 WS jumps when they got their suits. One had three (in an i-bird). One had approximately zero over the last several years. You sound like you are more competent than most Freak owners I know. If you're worried about Squirrel not selling you a suit, worry not. If you're worried about survival, you'll probably be fine. If you want to be a good wingsuitter maybe spend some time on an intermediate step. Personally, I think it's a shitty idea. I have friends with Freaks with dozens of jumps that I outperformed on jump 2 in my Havoc because I spent a few dozen extra jumps on smaller suits and they went straight small (with the occasional brief funk time) to big. And I'm no rockstar by any stretch of the imagination. But it all depends on what you want from life. Find a competent wingsuit coach, pay for a few coach jumps and ask their opinion.
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As experienced skydivers we shouldn't tell / teach people this. Teach them how to make the decision, then let them decide. Saying 'you're almost certainly going to be able to land it' puts pressure on them not to cutaway because they might second guess themselves. 'Well, it feels weird to me, but people say it's landable 99% of the time, so maybe my feeling is wrong...' It's poor information. I didn't intend it like that. I wouldn't fault someone for cutting away above 500 feet. They're the pilot in command of their airship. The OP asked how others would act in that particular situation. I responded for myself.
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Where can the results of this testing be viewed?
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That particular step through - yes. Your risers are just twisted, the twist will stay at the base of the risers, if you do your canopy check you will 99.9% find you have a steerable canopy. That having been said my one cutaway as of now was a step through where the canopy got flipped through some riser groups and lines were wrapped around lines. The canopy I judged wasn't steerable (when I tried the brake lines wrapped around both risers brought the risers together above my head but hardly any of the input made it to the canopy) so I cut it away, landed the reserve, etc.
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Any crossover in skydiving and paramotor ?
lyosha replied to shorehambeach's topic in General Skydiving Discussions
This. In Paragliding/Paramotor your chief job is to pilot your wing. Skydivers are, by PG standards, just flying sacks of potatoes capable of flaring. When I started to paraglide, my skydiving instincts actually were a detriment because I wouldn't turn into final low enough and overshot the landing area. I'm not sure if skydiving before PG made things easier or harder. -
Do you know what the expected life is?
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Someone told me that the low bulk option for a winx is still ZP material (I looked up, and Porcher does make PN10 low bulk ZP). But their website says it's Porcher PN9. Which is it? Also does anyone know what is the expected lifespan of the low bulk version of the canopy?
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There is no "stall point". There is a "stall line" where on one axis of the graph you have forward speed and on the other axis you have angle of attack. When in the bottom end of a landing flare, you may find it advantageous to go deeper than a stall point at a slower speed in order to get extra lift out of your canopy through deflection.
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The Vector IIs are really close to the Wings in the amount of capture at the top. Lastly, if the Vector Pilot chute was crappy (which it is not by any stretch of the imagination) you would see a lot of reserve PC in tows on the Vector III; which BTW I have never seen or even heard of. MEL Not sure what you're going to be measuring with a Vector RPC at 40 MPH... Lucky for you someone measured PC drag already decades ago. Vector had the lowest drag RPC in test. Doesn't even reach 10 lbs of pressure at 40 mph. http://plabsinc.com/resources/Australian+Parachute+Federation+Main+Pilotchute+Hesitations.pdf
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Low bulk canopies - whats best - your help needed
lyosha replied to nobucket's topic in Gear and Rigging
... is firebolt low bulk?!? -
... but that's not how stalls work though. A "stall point" is a moot concept. There is no point. It's a curve where on one axis you have your angle of attack and on another axis you have the airspeed of the canopy... For example if you suffer a low collapse it may be beneficial to apply more toggle input than what would produce a stall at a slower airspeed in order to gain necessary lift through deflection. I would not do full stalls with chest strap loose. Skydiving canopies are not designed to recover from stalls gracefully (since they are never actually stalled except when on or near the ground). Lots of different ways things can go wrong...
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Bill, Have you had the opportunity to test my hypothesis?
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Crossfire is a substantially more aerodynamic design. For the same surface area it has less drag, which equates to more speed. Similarly 7 cells are usually trimmed super steep but typically will have less flare than your garden variety Sabre2 all other things similar. There are many variables that affect flare power.
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your Sabre2 170 was actually 1.55 wingloading... :X
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People don't leave bad reviews. They like their gear and rave about it. Read the reviews of the Pulse - a canopy I have yet to see anyone land well consistently. When I see someone demo one I know I'm about to be treated to some kind of funny looking landing. ... but if you read the reviews you'll think it's awesome. I've jumped a number of canopies loaded at 1.05 to almost 1.5, and some have more flare than others and have to be run out more but I can't say I had one that had poor flare. But then again, you hear people complaining about the same handful of canopies over and over again as having poor flare...
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Any way you'd be willing to open source the code and/or allow guest developers? There's a few of us here that know how to write some code and are interested in contributing to such a project... Hi Iyosha, Thanks for your interest! What sort of involvement did you have in mind? Implementing features that you don't see the value in but there is demand for. Namely the three mentioned in this thread.
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Yes. Happened to a friend of mine. How exactly did your closing loop tightness cause a premature deployment? I mean, I can see how pc pocket tightness would do it... But closing loop?
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I purchased one of these things to try them out, but for me having to turn it on every day will probably be a deal breaker as well. I haven't had to turn my Optima on since I got it and only take it out to adjust altitudes. I don't know a single skydiver which turns their audibles off at night. The point about turning it on to know battery isn't running out is moot as well. All audibles I've used emit a sound at 1k. L&B ones that sound even changes to let you know your battery is low. If you don't hear a sound - your audible is off. My Optima lasts literally a year in between batteries, which cost peanuts. The same is true of just about every other audible out there, so I don't think it's an unreasonable expectation.
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I don't think that's how it works. 309 and 319 hold different canopies... Vector does make containers that are better and worse for wingsuitting. Some microns work better than others. Just look at their size chart at the "length" of the container. They're not all the same size...
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All vectors are all around containers. Some are easier for wingsuiting than others. For whatever reason the "cool" thing recently has been to get short pudgy containers (i.e. microns, mirage...). The V308 is one of the shortest containers made. Only one vector model is shorter (and every other micron is either as long or longer). In general, the longer the container, the easier it will be to WS in it.
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Any way you'd be willing to open source the code and/or allow guest developers? There's a few of us here that know how to write some code and are interested in contributing to such a project...
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Can you post a picture? I can't quite visualize how you could make a lark's head in that situation...