'Netters:
Thanks for your reply, Jim Moffitt.  I had not yet found the Mil-Std-810
method spec.

I am also looking for any requirement specs.
If a Boeing Engineer wanted to place some electronics near the engines,
vibration should be expected and taken into consideration at design.  Is
there a design/production spec for circuit card assemblies which include
requirements to meet some vibration/shock criteria?  How are these
requirements invoked now that Mil-C-28809B is gone?

What shock and vibration requirements are placed on the famous Flight Data
Recorders searched for and recovered after airline crashes?  They have
boards in them, right?

There are 'Commercial-Off-The-Shelf' ruggedized VME cards available.  What
shock and vibration specification do they meet, if any?  Is there a
commercial spec for this, or is 'ruggedized' an indefinite marketing word?

Thanks for everyones responces,

George Franck
Raytheon E-Systems
Falls Church Va
----------
> From: [log in to unmask]
> To: [log in to unmask]
> Subject: Re: Asm Shock/Vib. Specs.
> Date: Tue, 12 Aug 1997 10:58:11 -0400 (EDT)
>
>George:
>- As you know Mil-C-28809B was canceled on 4/19/95 without replacement.
The
>environmental tests of 28809 are closely related to the tests described by
>Mil-Std-810E.
>- Mil-Std-810E (Environmental Test Methods & Engineering Guidelines) was
(the
>last I heard) being retained as a Test Method Standard pending action by
ANSI
>to identify alternative or replacement private sector specs/stds.  The
>Mil-Std may be available from some normal (Government) sources if it has
not
>yet been canceled.
>- If you are unable to obtain a copy of 810E and need an alternative
private
>sector Spec. then you might check with the EIA Standards Section
>(http://www.eia.org/eng/catalog/catindex.htm) as they have a number of
>standard methods listed (see EIA-186-7E or EIA-186-8E).
>- After identifying a viable alternative Spec. you need to discuss
SPI/Block
>Change using the different specifications with your customers.
>- Pose any additional questions direct to [log in to unmask]
>Regards, Jim Moffitt
>
>