[ARC5] F-86 Radios

[Sandy]

The IFF coder was indeed the KY-95/APX-25 I think.  The old RT-82/APX got 
converted and a coder socket provided.  We had some old APX-6 sets`we had to 
add the modification to.  Probably for the 2-3 T-birds we had.  The F=86D's 
and and later the F-102A's had mode 2 settings that were different in all 
aircraft.  The GCI site had the list vs. tail numbers which was either 
Confidential or Secret at the time I don't remember.  My main job at that 
time was the IFF system and getting the UHF gear running well.  Although I 
had a 30171 AFSC as I recall.  I worked very little on the TACAN stuff but a 
lot on the VOR/ILS and commo gear.

73,

Sandy W5TVW

-----Original Message----- 
From: D. Platt
Sent: Saturday, December 22, 2012 7:48 AM
To: arc5 at mailman.qth.net
Subject: Re: [ARC5] F-86 Radios

I might be inclined to differ on one point..... The ARN-6, or other ADF
radio, would not have been removed because the ILS FAF would be
predicated, many times on a compass locator.  But... heck  obviously
some '86F's had it removed.  Long before I got to the 95th FIS, the
squadron 86D's did have the ADF.  In those day, LF/MF airways segments
were in use and many, many airdromes had NDBs..   In the early 60's, the
T-33's had the ARN-6 and probably till they went to the boneyard. I
think I have an old AS-313 loop!  Our F-106's did not have ADFas TACAN
was used to provide position data.   I'll have to get out my manuals for
the F-86D, et al and see what the equipment suite looked like.  Its been
a fairly long time.... don't you see..... Anyway, by the time I got into
all this, IFF/SIF was deployed and Mode II was active for ADC.  I recall
the SIF encoder for the APX-25 was the KY-95?  Hmmmm?  In the early
60's, the 95th's SIF code was Echo-Lima or 0001 0110 on the KY front
panel in the nose of the T-33's.  The crew chief would open the panel
and we'd confirm the proper code was set in.  The IFF/SIF for the
MA-1/ASQ-25 system in our F-106's were pre-set by the MA-1 flight-line
maint. types.  I have no recall as to what the Hughes nomenclature was
for the basic IFF.

Jeep - K3HVG

On 12/21/2012 7:31 PM, Robert Eleazer wrote:
> My F-86F pilot's manual, dated 1960, shows the ARC-3 as applicable to 
> F-865F-1 through F-86F-15 aircraft not yet modified by T.O.  Those same 
> type aircraft modified by T.O. had ARC-33.  F-86F-25 and later aircraft 
> had ARC-27.
>
> Most aircraft had ARN-6 but some had that removed and replaced by ARN-21 
> TACAN.
>
> Most had APX-6 or 6A IFF but some were modified with APX-25.
>
> Of course, all had APG-30 gunsight radar.
>
> So if you are talking Gabby in Korea, flying F-86A through early F-86F, it 
> likely would be ARC-3, ARN-6, and APX-6 as well as the APG-30.
>
> As a comparison, the F-80A had ARC-3, ARN-6 or ARN-7, and some early ones 
> had BC-1206 instead of the radio compasses.
>
> Wayne
>
>
>
>

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