[MRCA] My COL-52286 (T-47/ART-13) For Sale.

[Michael Hanz]

I'm no expert on anything, but I'm under the impression that the radio 
equipment I've seen installed in naval combatants has some pretty hefty 
shock mounts to improve survival through torpedo and enemy naval cannon 
hits on a ship, not to mention firing of the ship's own large weapons.  
I seem to recall that even the 5" guns hit you like a plank on board.  
The ringing pulse of a hit throughout the steel structure is apparently 
pretty big, and those ATC and ART-13 transmitters have some fairly 
sensitive inner parts.

There are some folks on MRCA who can interject some better facts than my 
meager impressions.
KC4TOS

On 8/30/2022 3:23 PM, Jeep Platt wrote:
> Mike is, of course correct.  The TCZ nomenclature is strictly Navy.  I 
> can only imagine that they may have been shipboard, or maybe shore 
> stations at NAS facilities.  Yet, the only place I've seen them were 
> at 3 different MARS stations. All gleaned from DOD R&M and such, I 
> assume.  I tried to use a TCZ mount kit on a shoeless ART-13 but guess 
> I was missing something....  Ted, W3PWW had all the poop on the TCZ... 
> but....
> K3HVG
>
> ------------------------------------------------------------------------
> *From:* Michael Hanz <aaf-radio-1 at aafradio.org>
> *Sent:* Tuesday, August 30, 2022 1:01:54 PM
> *To:* Jeep Platt <jeepcomms at outlook.com>; wildbillk0ikp (null) 
> <wildbillk0ikp at aol.com>; Doran Platt <jeepp at comcast.net>
> *Cc:* William W. Busch via MRCA <mrca at mailman.qth.net>
> *Subject:* Re: [MRCA] My COL-52286 (T-47/ART-13) For Sale.
> In addition to Jeep's description, I don't know of anywhere in the 
> Signal Corps inventory that the TCZ was used.  It had that salt water 
> Navy aroma, don'cha know. (running and ducking...)
>
> In order for it to be used in an aircraft or ground vehicle it would 
> have needed another pair of support plates underneath with appropriate 
> rubber shock absorbers.  You can see the two ART-13 transmitters in 
> the Enola Gay (one connected to the "liaison" antenna, the other to 
> the "command" antenna) at 
> https://aafradio.org/NASM/Enola_Avionics_Descriptions_-_Radio_Op.htm 
> <https://aafradio.org/NASM/Enola_Avionics_Descriptions_-_Radio_Op.htm> 
> (showing that both have the standard MT-284/ART-13 shock mount with 
> rubber pads separating the three levels of the mount.)  A better 
> closeup of the MT-284 mount construction is at the top of 
> https://aafradio.org/garajmahal/ART-13_mounts.html 
> <https://aafradio.org/garajmahal/ART-13_mounts.html>
>
> - Mike  KC4TOS
>
> On 8/30/2022 10:25 AM, Jeep Platt wrote:
>> The TCZ was simply a ground mounted T-47. It sat on a 44" (nom) 
>> cabinet with an a.c. power supply. The mount was designed to support 
>> the transmitter in a fixed environment.  I saw several in USAF MARS 
>> stations...back when....
>> K3HVG
>>
>> ------------------------------------------------------------------------
>> *From:* mrca-bounces at mailman.qth.net 
>> <mailto:mrca-bounces at mailman.qth.net> <mrca-bounces at mailman.qth.net> 
>> <mailto:mrca-bounces at mailman.qth.net> on behalf of wildbillk0ikp 
>> (null) via MRCA <mrca at mailman.qth.net> <mailto:mrca at mailman.qth.net>
>> *Sent:* Tuesday, August 30, 2022 9:48:01 AM
>> *To:* Doran Platt <jeepp at comcast.net> <mailto:jeepp at comcast.net>
>>
>> Hi Jeep,  educate me.  What was a TCZ mount for?  We know the army 
>> used it in the Enola Gay.  Did they use it in vehicles installations?
>> Thanks, 73 Wild Bill, K0IKP
>>
>>> On Aug 30, 2022, at 06:08, Doran Platt <jeepp at comcast.net> 
>>> <mailto:jeepp at comcast.net> wrote:
>>>
>>> Looks like the TCZ mount vice the aircraft shockmount version. Very 
>>> nice unit!!
>>> K3HVG
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