[ARC5] Expert knowledge needed

[Mike Hanz]

One of the least exploited document sources of WWII aircraft equipment 
is the set of maintenance digests for Navy and USAAF radio equipment.  I 
have finally finished OCR-ing one of the USAAF  "Unsatisfactory Report" 
digests (from May-June 1944) and it has a page which mentions the 
BC-706A and SA-3/A crash switches.  See 
http://aafradio.org/docs/docs.html under "Operational Notes" for the 
whole radio section of the document - the crash switch is mentioned on 
page 35R.  Originally set for 10Gs, the springs evidently weakened over 
time to start giving problems with hard landings and turbulence...  :-)  

The UR's (and the Navy equivalent Airborne Radio Maintenance Notes - 
ARMN) provide a fascinating snapshot of problems reported from the field 
on various types of radio equipment.  Please let me know if there are 
errors in the OCR version of the UR - it has cost me countless hours 
correcting format and words, so there are more than likely many mistakes 
in it.  I have sworn off OCR until I find a better software package.

73,
Mike   KC4TOS

David Stinson wrote:

> Is this the impactor switch thing; cylindrical with a flat mounting 
> surface,
> clear window in the top, had a weighted rod you could see that would
> knock around if you shook it?  I always wondered how they kept from
> blowing the destruct during tight turns.
>
> ----- Original Message ----- From: "Paul Redlich Tri-State Warbird 
> Museum" <tristatewarbirdmuseum at fuse.net>
> To: <ARC5 at mailman.qth.net>
> Sent: Friday, June 20, 2008 6:13 AM
>
>> Can anyone identify the function of a BC-767? 
>