[ARC5] CDA-T Dates (was Collins 18S-4, RT-380/AR (AN/ARC-59)

[WA5CAB at cs.com]

In the CDA-T instructions that I have, there is no date on the written 
modification instructions, which carries the Gables Engineering logo.  The 
drawing (including parts lists) title blocks are a mix of Pan American World 
Airways and Gables Engineering.  The Pan Am ones are dated between February and 
August 1948.  The Gables ones run from September 1948 through September 
1949.  I can't imagine why the wide date spread.  There is no indication in the 
title blocks that the later 1949 dated ones were revisions.  I sold the 
three kits that I had, so can't check whether there was anything in them with 
dates or not.

In a message dated 6/27/2011 1:14:34 PM Central Daylight Time, 
kk5f at earthlink.net writes: 
> I don't think the time lines support that.  I don't know when the CDA-T 
> appeared
> (Robert??).  It doesn't seem to have shown up on military AN/ART-13 sets 
> until
> sometime before 1952.  The Collins 18S-1 showed up in 1946.  I seriously 
> doubt
> that the CDA-T had any influence on what Collins was designing.  So, maybe 
> the
> lines of inspiration run:
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480