[Milsurplus] How late were ARN-7 Radio Compasses (ADFs) in US mil service?

[Bruce Gentry]

In 1971, I was stationed at Griffiss AFB in Rome, New York.  I had an 
ARN-6 setup I had bought three years before, and needed a manual. For 
grins and giggles, I called the base radio shop and to my surprise, they 
had manuals and gave me an extra. The ARN-6 was still very much in use 
then, and they had an ARN-7 test setup as well that was used once in a 
while for older cargo planes. I  installed the ARN-6 in my car, powering 
it with a solid state power supply that doubled the 12 volts. Lots of 
people- including my squadron commander- thought it was neat, the 
killjoy lifers weren't so nice.

      Bruce Gentry, KA2IVY



On 1/4/16 3:02 PM, Taigh Ramey wrote:
>
> I believe the ARN-7 was used until the early to mid-1970’s in the US 
> Navy. Later with the RCAF. Many aircraft from the SNB/C-45 series and 
> R4D/C-47 series used them as well as many other earlier aircraft that 
> had it as original equipment. The ARN-6 seems more common in later 
> production aircraft that never saw the ARN-7. Your eBay ARN-7 seems 
> right in line with what I have seen in surviving Navy aircraft these 
> days. In my limited experience I haven’t seen much of it used post 1980.
>
> Taigh
>
> Taigh Ramey
>
> Vintage Aircraft Inc.
>
> 7432 C.E.Dixon Street
>
> Stockton, California 95206
>
> (209) 982-0273
>
> (209) 982-4832 Fax
>
> www.twinbeech.com <http://www.twinbeech.com/>
>
> /KEEP 'EM FLYING...FOR HISTORY!/
>
> *From:*Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] *On 
> Behalf Of *Boeing377 via Milsurplus
> *Sent:* Monday, January 04, 2016 9:45 AM
> *To:* milsurplus at mailman.qth.net
> *Subject:* [Milsurplus] How late were ARN-7 Radio Compasses (ADFs) in 
> US mil service?
>
> http://www.ebay.com/itm/151934890645?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT 
>
>
> Photo on eBay shows one with a 1971 rework logo and an emblem text 
> that is hard to read but might be NAFL?
>
> Mark
>
> AF6IM
>
>
>
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