George,

The FAA publishes volumes of airworthiness requirements which commercial
aircraft must meet ... try their website @ www.faa.gov and look at Advisory
Circulars or call the FAA Tech Center in Atlantic City regarding vibration
test procedures for airborne electronics assemblies.  I also have a copy of
Mil-Std-810E ... Vibration is test method 514.4 and it is about 100 pages
long.  I'd be glad to mail you a copy if you'd contact me offline with your
mailing address.

Sheila Smith, Tracor AES

At 09:26 AM 8/13/97 -0400, you wrote:
>'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
>>
>>
>