Hellis

How can 6 seconds be 1000 feet? You have no clue what you are talking about. And about the "campain" you earlier wrote about. Yes there migh be a campain about 'use RSL'. Just like there are campains about 'don't drink and drive' or 'use seatbelts'. But do you know why there are such campains? They have a proven result to back it up. Just like RSLs there are far less fatalitys than without seatbelt and beeing drunk.

I have not said everyone is stupid that does not use RSL. I think those who do jump without should think really hard about it first, and not listen to someone who has (as far as we can see from your posts) very little experience. Think hard, talk to someone with RSL and someone without, talk to the instructors. Think hard again, then make your decision. Talking about your first post... Looking at the posts you have made here on the forum most of them seem to be about how dangerous RSLs are. And then there is a few about cutawayhandles on helmets. If you had not said you were not on a campain regarding RSLs I could have sworn that was what you were And yes I jump with camera, and with the RSL connected.

Yes, I believe so. Don't know for sure as I have no chops, but I have done a few balloons, choppers and BASEjumps. I know it's hard to get straight if you fuck up the exit in BASE, I would be surprised if it was easier with a spinning mal. But then again I'm not as awsome as you For anyone reading here this Bluedude is saying RSLs are only for studentsand you are better off without one if you are not a student. That is pretty much the opposite of what everyone else says, experienced or not. Think before you act.

What is your experience? How many cutaways do you have? If none, how many balloonjumps do you have? Or helijumps, or paragliderjumps, or BASE? Just want to know how much there is behind your words.

A few things I want answers on regarding this post, but I don't have time for it all. I think someone else will ask the other questions. But one thing I really need to know. How do you train how to get stable after a chop in a windtunnel?

You do NOT have a barometer/variometer in your smartphone. Nor do you have ammunition for your virtual Glock. You have a GPS. You have software to interpret data. ETA: Apparently, you do have a toy barometer in that thing. If you want to risk using a BB gun in a firefight, have at it. Let us know how it goes...

Would it in any way be better than the other conventional altimeters? Does it make the skydive safer in any way? Will it help you in any way? If the answer is no on any of these questions, why bother?

Skyflash! Thanks! Didn't think they still excisted. If at first you don't succeed... Post it on YouTube?

The schoolkids that was sure they could build a jetengined fixed wing "thing" that could be landed on skateboardwheels (?) mounted on the belly? Can't remember all the details, but the last thing I remember about it was they tested the engines on the ground racing down a street (or grass?). Have they made it to the incidentsforum yet?

If experience = 0 or experience = "close to zero" then Camera = 0 Else Jumpershouldhaveaclue 0 End if

IIRC, the AADs went back to the families, who declined to provide them to Airtec for examination. Mark Wow...really? Something I never thought about, but may be a good idea to let my loved ones know it's my wish to allow for any & all investigation be made, in the hope of furthering the safety of the sport..."if' something ever happens that is. Yeah I may need to advise my family not to be selfish idiots. It might considered be too harsh to deem people who would do that as such, but I'm standing by it because they're actively impeding efforts to prevent other people from suffering the fate of their loved ones. And I assume skydivers have informed the families how important the data in these AADs are, and they still don't want to send them in. If this would have happened in 'normal life', let's say a car crash with a videocamera in the car the families don't have the option to keep the camera, do they?

IIRC, the AADs went back to the families, who declined to provide them to Airtec for examination. Mark Wow... I guess we are keept in the dark, but by the families

Probably because the reserve did not open in time. All an AAD does is cut the loop. It does not open your reserve. It’s up to the jumper to save their life. These 2 jumpers failed to that. Sparky Well, I'd like to know why two AADs and reserves on two separate rigs simultaneously failed to prevent both from impacting the ground at a lethal velocity. I don't expect perfection, but I would really like to know what the failure point was here. Yes, it's a chain of failures that each started with the jumpers failing to deploy a parachute in time. And I know what to do to avoid that when I jump (and I hope that I do). The AAD information on activation speed and altitude from each unit must be known to some, and that information should allow us to understand what the next failure was. - Did the AADs not operate as expected? (And if so, why not and in what way?) - If the AADs operated as expected, were the conditions at the time (velocity, body orientation) outside the normal range that the AAD expected? (And if so, in what way?) - If the conditions were as normally expected, and the AADs fired at the properly programed time, then both reserves must have not deployed as rapidly as expected. If so, why not? (Reserve packing error? Equipment maintanence? Non-ideal reserve size? Container design flaw? Reserve PC flaw?) I want to know these because I'd like to reduce the risk that I hit the ground at a fatal speed (as much as reasonably possible while still enjoying jumping). Right now all I know is that this dual incidents reveals that the reliability of those particular AAD/Reseve/container combinations were less than I had expected. But we are being kept in the dark about the chain of failures, and so have no information about what the second failures were. Consequently, I have no idea how to *best* reduce the risk of whatever this second failure was. So "Don't fuck up" (while certainly true) is not all that useful a lesson to take away from these two incidents. I'm not sure we are 'kept' in the dark. Looking at past incidents, if there is a faliure the cause of the faliure is told. (at least as far as we know) I do not believe there is a conspiracy in these incidents, they are very uniqe and I believe if the cause was found it would have leaked out. But maybe i'm just one of those who don't believe in every conspiracy I hear of

I did not know this. Or maybe I once knew and now forgott, but it still does not change my opinion about it beeing more problematic to use than the reward of having it in skydiving. Even with this "Lock" feature, you have to "unlock it", zero it, and then "lock it" once or more times a day. The altimeters do it automatically.

I would never recommend one, but I have one. They have to be zeroed on every jumpday, and sometimes a few times during the day. They lag and shows a higher altitude than you really are. Because the buttons are on the sides, you could in a rare case accidently push a button and it will go to compass mode or something else. I think if someone want's to use one the should be able to make a skydive without a altimeter, fly a reasonable pattern and land with some accuracy. You don't have to do a jump without one to prove that you can, but you should be mentaly prepaired for it. And I think you should have a audible if you want to use it. In my opinion, there is no good reason to get one of those over a VISO or Neptune. I know the VISO can show the time, and I think the Neptune can do it too. So what else is there in the Core? A compass? Do you need it during the skydive? Also cost wise they are about the same. However the VISO and Neptune has some features you might need such as logbook and fallrates. This is my opinion, and it might differ from someone elses. In skydiving I see them as "gimmicks", with very little value. But I have used it a few times during BASEjumps not that I rely on the watch (I have a laser too) but it's nice to have a "altitude".

Maybe. Unless the puller working quicker causes the loop to go slack which in turn causes the cutter to not cut properly and trap the loop. Oops, another way to die has just been discovered! There are so many already, we don't need new ones. But if the puller pulls the pin, the loop is free, and the reserve PC will launch? If the cutter works or does not work won't make a difference. [EDIT: You are thinking of a top mounted cutter. I see the problem. Just move the cutter ]

I agree with you that there are more layers to the problems than only the cutter/reserve activation. The AAD itself (the electronics) is one. But out of all the incident reports I have read very few have been caused by "delayed" electronics. On the other hand overstuffing, lead balls and not completly cut loops is on the "other side". But mybe I just missed the delayed electronics incidents? (I mean it, I'm not trying to be sarcastic) Two cutters won't make it redundant. Because I don't know all rig systems, I will in this example use one that I know "well". On a rig with the reserve closing loop attached on the bottom with the cutter above, and above freebag and PC. (for example Javelin) If they both fire at the same time and the lower cutter cuts the loop but the one above does not (pinches) it, the two cutter system is not redundant. However having one at the bottom and one at the top means if one of them fires it will work. But if the bottom one doesn't work and the top one only pinches the loop your reservehandle is useless. But do we need redundant activation methods you ask. Maybe not. The risk is very low of it happening. My post was not in any way backed up by any data of saying that on cutter and one puller is perfect. It has to be tested very thoroughly. I just see a trend of people going in with a half deployed reserves, is that because of the overstuffing, delayed electronics, etc. or because the delay that becomes of the loop having to pass trough all the grommets? I don't know. But if this could help, maybe it's worth a thought? Sparky: Please explain how my post shows you how I don't know how the gear works.

I like the idea of a pinpuller but not as my only AAD-solution. There is as we know two ways to deploy the reserve, cut or pull. I already have a "pinpuller", and it's my left hand. If my left hand fails (can't find the handle, forget to pull, hard pull, etc.) I want the AAD to activate the reserve. But I don't have a way to manually cut the loop. If I use a pinpuller instead of a cutter I remove "one option" of deploying the reserve. What is the best way to activate the reserve? In some cases it can be to pull the pin and in some cut the loop depending on if there is a lead ball in the cutter or the pin is bent. So using a double AAD with one cutter and one puller is probably the best way?

True. By "standard" I meant the style with the 1/8" cable sewn into a channel so they sit propped open. In that case we talk about the same type of "standard" toggle

I also used standard toggles when slider off earlier. But then I realized the WLO toggles are larger and stiffer and therefoe easier to grab. In my opion... But I guess it depends on what type of WLO/WTF/etc. toggles you have and what type of "standard" toggles it is.

WLO or not, on a slider down/off I always use LRM. It's quicker than using the WLOtoggles. If the second "part" of the video is normal speed and not speed up I think he should have had his deep brake setting deeper.

So you have the data in lat/lon and then you convert them to this ECEF and then back to lat/lon? I really don't see the point. Every time you convert numbers they get less accurate. Does that not happen with this data to?

That has to hurt. look at the landing in the file jump1 posted earlier. THAT HURTS! :-)

It's not center of earth. Your first datapoint show 4576 m, earth radius is aprox. 6371000 m. The datapoints you have a MSL, Mean Sea Level. Altitude above average sea level. Sorry for the correction. Nice work on the convertiontool. I just want to warn you about using "absolute" altitudes. Google earth is not accurate at groudlevel, just looking at the file you uploaded here you can see the problem.. [inline high_flare.jpg] So on this DZ Google Earth shows groundlevel as too low. On other DZ´s the groundlevel is too high, and it looks like you landed below ground. The solution is to use "RelativeToGround" and calculate the groundlevel using the data from the FlySight/or GPS. I attached one of my files created in my FlySight macro. Here I calculate the groundlevel and use "RelativeToGround". You have to save it as *.kml to be able to open it in Google Earth.

Just wanted to let you all know that you can use your FlySight to calculate the distance to your landing target and calculate the swoop distance. This should be used as "rough" numbers and for average jumpers. If your accuracy is less than the inaccuracy of the GPS, this is not for you You can find the download link here: http://www.hellis.me/ And more information about the settings here: http://hellis.me/calculateground.html [inline Google_Earth.jpg]