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Rationale: Top curtains versus airbags Posted by CrNiFe [Email] (#408) [Profile/Gallery] (more from CrNiFe) on Mon, 21 Nov 2005 09:12:25 In Reply to: 9-5 Absence of Air curtain for 2006, davidgmills, Sun, 20 Nov 2005 08:22:07 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Remember that airbags deploys in less than a tenth of a second, and then begin deflating - so they are limited in the way that they can protect an occupant in a rollover collision, in which the forces and accelerations are changing drastically over five to six seconds.
The public often thinks that the front and side air bags should deploy when you rollover, but they don`t because the forces and accelerations detected by the air bag module sensors are either not beyond the threshold, or they are in the wrong direction to be detected.
I don`t know if the SAAB side air bags are designed to deflate more slowly than the front ones. They could be a hybrid, that would allow for some head protection against heads bumping against the window, A-pillar and B-pillars. Side air bags are supposed to help against massive intrusion into the doors by another vehicle.
SUV`s need roofline air curtains - because people drive them too fast, and they rollover, all the time. Recent stats from NHTSA show that on the order of 25% of fatalities are now from rollover type collisions.
Like they say, it`s not the fall, it`s the slowing down that kills you.
I will be interested in the information that comes out on this thread.
CrNiFe
Vehicle Collision Reconstruction Engineer
Toronto
99MY 9-5SW, 2.3lpt 106000km
05MY 9-5 SW Arc, 2.3T, 11500km
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