[Milsurplus] PU-18/A ???

[WA5CAB at cs.com]

CAY is Westinghouse.  Bendix is CRR.

My understanding is that Naval aircraft of the period when the ASB was in 
service had an engine driven 800 CPS generator, not an inverter.  Just as they 
had 24 VDC generators.  Mike?

On another subject, many people seem to think that sets like ASB-5, GP-7 and 
GO-9 are unique.  Meaning that for example GP-7 was the only one built.  This 
is probably a consequence of them all being the final production models, and 
many never getting issued.  The Navy, unlike the AAF, appears to have scrapped 
most of its avionics with the airframes.  Had they scrapped instead of 
mothballed most of the fleet at the end of the war, the same thing would have 
probably happened to shipboard sets.

But for example GP-7 was only the ninth order in a series of GP's (there was 
a GP-6a).  I don't know the production history of the ASB but am sure it was 
similar.  Some model numbers are identical to the earlier or later one and some 
aren't.  A better example would be the TCS or the LM (16 and 22 model numbers 
respectively).  In the TCS line, from TCS to TCS-15 there were only about 
four significant changes made (other than minor differences like wire insulation 
due to different contractors).

In a message dated 10/7/2006 10:52:41 PM Central Daylight Time, jfor at quik.com 
writes: 
> >John,
> >
> >I have no idea what the PU-18/A  was procurred for use with but it is at
> >  least unlikely that it was for the ASB as the nomenclatures are from
> >two different  systems.  If it was for the ASB (any model) it would more
> >than likely have  had a nomenclature of Cxx-21xxx.
> 
> It had a CAY (??) or some such, but it was dark and hard to see and I
> didn'r write it down. Stupidly (?), I figured no one else would be
> interested. It was made by Bendix. It's a puzzle because it had at least 3
> MS connectors. Also, in the ASB-5 doc I've seen, no rotary converter is
> mentioned. The doc just assumes 115 V 800 Hz is supplied (along with 24
> VDC)
> 

Robert & Susan Downs - Houston
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