[ARC5] [Milsurplus] Interesting ARC-3

[jeepp]

In about 1963, had occasion to be inside base supply at Dover AFB.   We were looking for some radio gear for our new U6-A, xferred over from the Army.  I saw some ARC-49 sets on the shelf.  Thoughts crossed my mind but what we needed was UHF.  ARC-55 would have been Ok but ARC-27s were better as out 3 T-33As used them.  Tell you what, though... the ARC-27 required a new weight & balance loading schedule for the U-6!Jeep K3HVG


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-------- Original message --------
From: Mike Morrow <kk5f at earthlink.net> 
Date: 11/26/17  15:56  (GMT-05:00) 
To: Jim Haynes <jhhaynes at earthlink.net>, Ed# via ARC5 <arc5 at mailman.qth.net> 
Cc: kk5f at arrl.net, milsurplus at mailman.qth.net 
Subject: Re: [ARC5] [Milsurplus]    Interesting ARC-3 


> When I was at Edwards AFB 1960-1963 we had a number
> of ARC-3 sets with contractor-made AC power supplies
> as our main VHF capability.  It was my understanding
> that at the time the military was prohibited from buying
> any new VHF equipment as a way to force the transition
> from VHF to UHF for military users.

That didn't turn out.  The AN/ARC-3/36/49 sets were followed by the Collins AN/ARC-73() for long service in Air Force and Army aircraft, followed by the Wilcox AN/ARC-134 and the Magnavox AN/ARC-115(), both available and widely-used by 1970.

The USN seemed to make the quickest break from VHF.  In the late 1940s the RT-58/ARC-12 10-channel crystal-controlled UHF command set could be installed in the rack in place of a VHF RT-18/ARC-1 to convert from VHF to UHF command set.  There was usually no side-by-side UHF and VHF capability as there was in many Air Force and Army aircraft.

Mike / KK5F
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