[ARC5] History question: post-ww-ii use of ARC-5 style equipment

[Mike Everette]

A TC-45J (originally USAAF, then USN SNB-5) was given to a technical school in NC around 1967, and arrived with a complete ARC-5 HF set up: two T-19s on frequencies in the 3000-3290 kc range and R-23-26-27 receivers.  All the shock mounts and control box mounts were placarded SCR-274N types.
The information with the a/c indicated that its last use was in sonobuoy training, probably out of NAS Oceana.
The aircraft also contained an ARN-30, ARN-7, and the mount/cables for an ARC-27 but that radio and its control box were removed before the a/c was flown to the school.
73
Mike
WA4DLF

      From: Robert Eleazer <releazer at earthlink.net>
 To: arc5 at mailman.qth.net 
 Sent: Sunday, March 20, 2016 10:29 AM
 Subject: [ARC5] History question: post-ww-ii use of ARC-5 style equipment
   
 After WWII many P-51's in the Korean timeframe had their SCR-522 VHF sets replaced with ARC-3 and the BC-1206 range receivers (if fitted) removed and replaced with BC-453 sets.  The BC-453's in the Korean War P-51's had probably the most prominent radio installation in history, being installed in single-rack mounts atop the ARC-3 receiver, sitting high up in the bubble canopy.  So that was something of a "new installation" for the SCR-274-N. According to the 13 July 1950 edition of the pilot's manual for the US Navy version of the C-119, the R4Q-1, had the ARC-5 LF set installed but the Air Force version of the airplane did not.  Both the USAF and USN versions of the airplanes had the ART-13 and BC-348 installed, as the ARC-8. At least some of the Navy airplanes had ARC-2 installations and of course all of the Flying Boxcars of both services had VHF installations as well, the USAF used the ARC-3 and the USN the ARC-1.  By the way, the Navy airplane also had an LM frequency meter installed.    The ARC-8 was installed in a number of new production postwar aircraft in addition to the C-119, including the B-36, YB-49 (and presumably the XB-35), B-50, and B-47A.  I assume that the WWII vintage ARC-8 installations were retained in aircraft that were used for decades after the war, such as the C-47, C-54 and C-69 as well as B-29's and C-97's.  The ART-13 was installed in new production Boeing B377 Stratocruiser airliners - two of them - but they used Bendix receivers rather than the BC-348.  The C-69 also had the ARC-9 set for use for "HF Command" use by the pilot and copilot (but not the radio operator, just like the SCR-274-N was) and so never seems to have had the SCR-274-N installed. The VHF ARC-5 was used in the Bell X-1A rocket powered research aircraft - so the USAF did have at least ONE of those sets in service! So, it would seem that postwar new installations of the SCR-274-N and ARC-5 were very limited, being replaced for HF Command use by mainly VHF Command sets and the ARC-9.         
Wayne       
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