[MRCA] A.R.C.'s Last MF/HF Set - AN/ARC-39

[Michael Tauson]

First off, sorry for the delayed response.  Reality has a habit of showing
up in gobs and goblets and has to be handled accordingly.

-----Original Message-----
From: mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net] On
Behalf Of D. Platt
> The USAF T-37 Tweets used the ARC-60.  I've no idea why unless it was
unless that the 
> ARC-34 or the ARC-27 were deemed simply too heavy.

Pretty much.  Also, as you noted, T-37s or any trainer had/has a limited
area of operation including cross country flights and there is no reason to
put the good stuff in them.  Some of the T-37Bs supposedly had
RT-295/ARC-45s but I don't know how many.  Most of my time was T-37A and an
intro to the A-37 which was interesting.  (That had, memory serving, an
AN/ARC-34 but it may have been something else.)

Background on the CV-431/AR ... It was a Korean War rush order for ARC so
light aircraft and helicopters could have UHF capabilities that would
integrate with the existing Type 12 equipment.  Unlike the rest, it wasn't
COTS but was made to order for Korea and continued in use through the Viet
Nam War, both in country and stateside.  It's one more example of ARC coming
up with a more than satisfactory solution to a military problem.  

The RT-427/ARC-39 was an ARC product built for who knows what purpose but
with a total run of something like 900 systems, 2/3 of which were made by
SunAir.  From what I can see, it was only used in the P-3A and the UH-43
which was a search & rescue helicopter during the Viet Nam War.  What I
suspect may have been the case is communications back to fleet ships out of
UHF range.  Anyway, it was in the same case as the APR-9 and used the same
mount - a carry over from ARC's work on that set.

Best regards,
 
Michael, WH7HG, A&P 1803851 Ph: 1-866-733-0218
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