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How effective are avalanche airbags?
- Donnelly_M
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- Charlie Hagedorn
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www.wildsnow.com/18262/avalanche-airbag-statistics-metrics/
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- sgertz
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I believe most airbags inflate to a volume of approx. 100-150L
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- aaron_wright
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Do you think so? She wasn't found very far from the other skiers that died from unsurvivable trauma. Do you think that she might have been extremely lucky?An airbag deployment most likely saved the life of a skier in that tunnel creak avalanche.
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- rlsg
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- BCSchonwald
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www.ncbi.nlm.nih.gov/pubmed/24909367
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- flowing alpy
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in pursuit of your Olympic downhill dream
imho.
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- gravitymk
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The airbags are effective when there is little to no consequences of trauma(trees, over cliffs, into rocks..). They are effective in preventing full burial and the only tool that can help with that.
www.ncbi.nlm.nih.gov/pubmed/24909367
Terrain traps are a known exception to this statement.
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- aaron_wright
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Two of the three fatalities were near or on the surface. The woman was completely buried except for her hands and her bag was deflated.yea- she was lucky, but the airbag may have kept her near the surface and therefore she may have avoided the main energy of the washing machine effect of being way down in the debris flow.
hard to know for sure, but i believe that she was found just under the surface.
i do believe, however, that once a person becomes involved in any accident, luck plays a role in the outcome.
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- pipedream
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About the only thing it's changed is drop ordering - usually someone with an airbag goes first and does any necessary ski-cutting since it provides a slightly higher chance survival / protection should the unforseeable happen
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- aaron_wright
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Which article? The accident report and her account say that her head was locked in the snow and she was able to brush some snow off her face, only because her arms were not buried, but could not move her head. Did you look at the pictures of the gully the victims traveled through? Her bag was deflated when she was extracted. I think she's just extremely lucky she avoided he trauma that killed her partners.
also her head was above the surface according an article that i just read. Like i said, sounds like the airbag played a part in her survival, but hard to know for sure.
I'm not saying avalanche bags won't help you if you're caught in open terrain and I think they are worth carrying if you spend a lot of time touring above treeline.
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- gravitymk
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Avy airbags are a last resort tool that by the time you've deployed you've bypassed several red flags and gone somewhere you shouldn't have been. I have one, it doesn't influence my decision-making on terrain based on conditions and what we've been observing. I still tour often with folks who don't have an airbag system and that also helps us make smart decisions.
About the only thing it's changed is drop ordering - usually someone with an airbag goes first and does any necessary ski-cutting since it provides a slightly higher chance survival / protection should the unforseeable happen
Gear should not influence travel/terrain selection choices period.
If you are making a choice based upon the idea that you are carrying gear to mitigate risk, then you are already playing against a staked deck. Better to look for reasons not to go, than the other way around.
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- pipedream
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My comment about terrain selection stands. I don't go anywhere I wouldn't without an airbag just because I or anyone else has one. This thread reminds me of that idiot on TGR who used to post about the East Vail Chutes and how he felt it was his civic duty to cut and ride them to keep them safe for the newbies who end-up back there underequipped and underinformed about the dangers of the near-resort backcountry. He stated numerous times that he felt safe doing that solo because of his airbag and avalung systems.
You can't cure stupid, but you can refuse to follow it into the BC.
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- Scotsman
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An airbag deployment most likely saved the life of a skier in that tunnel creak avalanche.
i don't use one because of the added pack weight and a bad back.There's also the question of taking greater risks due to having one and perceived avalanche protection (see risk homostasis theory)
i am trying to get a local designer intertested in designing a light weight air tight pack that you would blow up, using lung power or light weight volume pump, before you descend.
the idea is to inflate the pack volume after you empty the pack of your descent kit.
An inflated pack may also help with tree well falls and object hits, as well as avys.
I don't know if it would have the volume of an airbag however.
Good you are innovating... and Im not putting your idea down but avy air bags do not work on the theory of flotation( a common and understandable mistake)... they work on the theory of substantially larger mass that causes bigger objects to rise to the top during the flow of the avalanche..not my opinion...science...google it. Your inflated pack would have to somehow increase the pack volume by a factor of at least 3 over a normal pack to be the equivalent of an air bag....something to think about.
www.snowbigdeal.com/avalanche-safety-gea...he-airbags-work.html
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- Scotsman
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Considering I do a lot of solo skiing and feel a need to start switching my skiing up by doing more off piste skiing, I figure my best option is to have an avalanche airbag. How effective are these devices? Could they also help protect the individual from a massive fall over rocks? From this video, it looks like a worthy investment. I figure with no wife and or kids, I might as well start skiing as such!lol
They have proved to be effective in certain circumstances.
They are heavy and depending on the type you buy, can be a pain in the ass to travel with and get refills.
Not sure the electric versions are fully proven yet and Im waiting for the next cycle of electric ones before I update my current snowpulse bag.
I like that ones that offer head protection via the inflated bag which is why I bought the one I have.
I'm sure you can figure out the heuristic traps they can produce without being lectured to.
If you can afford it...why not?
Check Wildsnow for the definitive review.
www.wildsnow.com/5014/avalanche-airbag-backpack-overview/
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- gravitymk
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My comment about terrain selection stands.
Your propensity for the need to be "right' is in and of it's self a heuristic trap.
You don't know what you don't know.
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- Scotsman
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Don't be so modest.... Much more than thatMy inflated ego would add another 15L.
Im heading to Haines tomorrow to inflate my own ego and will be a heli- fan boy for a few days.
I'll let you know how the guides stack up compared to our beloved NCH guides.
Interestingly enough they provide you with a mandatory avy air bag pack and a mandatory harness.
Hope the weather cooperates.
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- Chamois
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If I remember the conclusion correctly it was that air bags did increase your chance of survival by less than 20% - so as usual it depends on how and where you ski.
There were some not very good examples - some skiers that did have bags, for various reasons, did not deploy them. And in two examples skiers undid the crotch strap as it was uncomfortable, got caught in an avy, and deployed their air bag. But they died because the bag pulled off their shoulders w/o the crotch strap. Jesus - if you are going to carry the dang thing use it as directed!
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- Jonathan_S.
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avycourse.blogspot.com/2010/04/additiona...ional-resources.html
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- snojones
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An airbag deployment most likely saved the life of a skier in that tunnel creak avalanche.
i don't use one because of the added pack weight and a bad back.There's also the question of taking greater risks due to having one and perceived avalanche protection (see risk homostasis theory)
i am trying to get a local designer intertested in designing a light weight air tight pack that you would blow up, using lung power or light weight volume pump, before you descend.
the idea is to inflate the pack volume after you empty the pack of your descent kit.
An inflated pack may also help with tree well falls and object hits, as well as avys.
I don't know if it would have the volume of an airbag however.
I have also wanted an inflatable pack for another reason, backcountry skiing out of a wilderness camp. Once you remove all your camp gear from your pack, it becomes difficult to carry your skis on that pack. The loose skis end up banging my calves.
I have taken to packing a beach ball, which I stuff into the empty pack body, and then inflate to stiffen up the pack body. This really helps keep the skis from flopping around as I climb. Your inflatable pack could possibly do double duty in this regard.
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- gravitymk
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- Micah
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An inflatable air mattress works well for this function and it's likely something that you would carry anyway. I have an older full length Therm-a-rest Ultralight that I have used for the purpose of providing enough volume in the pack to make a-frame ski carry manageable.
Thanks for the tip, that sounds like a good idea that I had not thought of!
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- davidG
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hey Scotsman did you ever ask those Alaskan guides if they report their near-miss accidents to their potential client base?
....
Whether we refer to such things as near misses or incidents, 'reporting' these things is good for the industry for more reasons than this immediate suggestion.. The more incidents with no consequence relative to those that do have consequence establishes a better picture of risk. As an example, in the hangliding community, the insurance market has a keen interest in understanding that ratio. What was perceived as a high risk endeavor, with commensurate insurance rates, has demonstrated with broader reporting of incidents with low or no consequence, that risk is lower than anticipated. Consequently, insurance rates have fallen.
It would be interesting to know in the heli-ski industry how this matter is perceived. I've enjoyed my few Heli-skis and have felt safely prepped and guided.
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- snoqpass
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- Charlie Hagedorn
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Posting bogus observations under the alias "Observations for Money" on NWAC is a douche move
I was glad to see that NWAC had taken it down by mid-day yesterday. I see now that there's a remaining one from 2/20. Just sent an email to let them know.
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- 0321Recon
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Considering I do a lot of solo skiing and feel a need to start switching my skiing up by doing more off piste skiing,�I figure my best option is to have an avalanche airbag. How effective are these devices?�Could they also help protect the individual from a massive fall over rocks?� From this video, it looks like a worthy investment. I figure with no wife and or kids, I might as well start skiing as such!lol
In addition to report linked by GravityMK, The WMS rates airbags as 1B, so besides not going, current evidence supports airbags at being at the top of preventing morbidity.
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- Chris S
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Posting bogus observations under the alias "Observations for Money" on NWAC is a douche move
What am I missing? What does bogus observations have to do with this thread?
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- Jim Oker
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It's a tangent to the tangent about "near miss reporting" by guide operations. *Someone* posted some bogus NWAC observation reports that were clearly taking aim at this same issue. Which some of us see as taking a dump out in the shared commons and unlikely to garner any added support on that issue.What am I missing? What does bogus observations have to do with this thread?
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- Jason4
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- Jim Oker
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Sounded like one of the survivors had serious trauma and will be lucky to regain decent use of one leg.
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