>In the end though, too much information. I need something I can
>give to a crystal vendor to say "has to withstand this".  The
>baseball vs bat thing is an approximation anyway, so it's closer
>to an "order of magnitude" answer that I'm looking for.

Seems if you really really need a crystal, then you are going to be 
launching into MIL-SPEC territory if you are going to talk in terms of those 
sorts of G forces. I am thinking in terms of electronics contained in shells 
fired from cannons, but even then I don't think you are going to be looking 
at the 90G I saw go by ...

Maybe you will end up with a resonator? Or is there some way you can use a 
PIC on its internal oscillator? Seems to me that whatever you are doing is 
going to have a short data collection time, so syncing things up at power on 
shouldn't be too bad. 

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