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Originally Posted by Scarsman
I am sorry to hear about your friend. Sounds like it turned out much better than it could have though!
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If it has to happen you want to be in the best, we're convinced anything less than the Hummer would have been fatal.
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I have no illusions that an H2 will not roll over. I am only referring to offroading incidents. As far as airbags, I have responded to some pretty good collisions where they did not deploy. I think they require impact, or g-forces, in specific directions to activate specific bags. For example, a straight head on collision wont likely deploy side airbags. Also, based on my experience investigating collisions, it seems to take a pretty significant impact to deploy them. Rolling onto it's side probably did not have enough impact force. It looks like it rolled to its side and then slid. Rolling onto its side will not generate the same force that a 3-5000 lb vehicle would have in say a T-bone collision.
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I know you weren't, sorry if I've thread jacked it.. your thread looked like a good place to ask questions.
I think we are, like most of the public, ignorant about the when & why's of air bag deployment ... especially in roll overs.
My "GM" expert (many years as a tech for GM and very knowledgeable) tells me "Roll-overs are a trump card, as the forces at work can interfere with the triggering of accelerometers."
As I read some where else, "If you walk away, the vehicle did it's job."
Thanks to all for the good wishes and help, this "kid" is tough and comes from good stock. He'll make it in the long run.