The pack abs is a very well studied system that allows "not to be swallowed" by the avalanche and survive the sliding thereof with a minimum risk to our physical integrity. With a simple pull on the trigger handle of the bag, causing it to swell 2 airbags of 85 l. each, 170 l. in two seconds, with this volume will very likely remain on the surface of the avalanche. The gas (argon or nitrogen) containing the cartridge is helping to swell the two airbags. Only have to reload the hilt (pyrotechnics) and the gas cartridge. Can be reused a few minutes. I offer you my recent experience in Canada Heliskiing has coincided with one of the most unstable periods on record in recent years: The guides usually do not use and the number of skiers who use it is actually very low. Heli ski operators have not yet been conclusively ruled on whether or not advisable. I have studied. However ABS backpacks offer their customers on a rental basis. What if you saw is an involuntary opening of ABS abs backpack to download the helicopter. Hello William, thank you very much for your information. There have been many cases of skiers who have survived the onslaught by the ABS. But if it is true that the user has to take special care to use as climbing on a chair lift, cable car, helicopter etc. disconnect is precisely to avoid the shooter. You can use these HTML tags and attributes:. . . .