Date: 16 Jun 98 02:15:10 From: Andrew Muir <nospamAndrew.Muir@Boeing.Com> Organization: Boeing - Wichita Division References: 1 2 3 4 5 6
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Karl Swartz wrote: <Snip> > In the case of the recent ValuJet, er, AirTran incident, it was not > engine damage but windshield damage. Ok, so that's supposed to be > able to take a direct turkey hit, just like the engines. I can only > guess that a large and sustained number of hail hits may be worse than > one turkey. I think the requirement is that the Windshield keep out a "turkey", not remain transparent after impact. I think Shattering and Crazing is OK, provided the "turkey" doesn't enter the cockpit or cause decompression. The assumption being, it would have to be a pretty big bird to shatter both pilot amd co-pilot's windshields. Anyway, that was what was required when I was peripherially involved with the T-46 canopy bird strike tests. So, I believe that the Air Tran windshield worked as required, no decompression. Unfortunately, the requirement did not anticipate flying into such a sevre hail storm where crazing and shattering would destroy visability for both pilots.