[ARC5] AN/ARR-69 inquiry

[zakariya.abu at yandex.com]

Jack,

I've just consulted with a 1956 SAC document on the KC-97E. This tanker 
only used an AN/APN-69 X-Band rendezvous beacon, an AN/APN-72 rendezvous 
radar, and an AN/APN-11 another radar beacon working in X-Band to 
facilitate the rendezvous. No transmitter which an ARA-25 could home in 
on was present.

An earlier manual for the KC-97E listed even an APN-2B Rebecca beacon 
and an APN-68 IFF beacon for the same purpose.

The KC-97F and KC-97G used an AN/APN-69 beacon, AN/APN-12 rendezvous 
radar and eventually an AN/APN-76.

The AN/APN-69 beacon saw use on the KC-97L in the 1960s/1970s.

So, it seems that rendezvous with a tanker was done through radar 
signals, not via the AN/ARA-25 or AN/ARA-50.

73

Jan

W dniu 24.03.2024 o 20:32, zakariya.abu at yandex.com pisze:
> Jack,
> 
> I think that TACAN has a dedicated A-to-A mode for finding air tankers. 
> It was implemented starting from the AN/ARN-52 in ca. 1963.
> 
> Methinks that homing on a tanker using eg. an ARA-25 UHF DF would 
> require constant transmission from the tanker to facilitate finding it. 
> What kind of transmitter other than UHF COM radio would be used then 
> unless there was an extra system using CW or MCW for identification? 
> Maybe our experts and practitioners could share how this was done in the 
> 1960s and 1970s?
> 
> 73,
> 
> Jan
> 
> W dniu 24.03.2024 o 20:12, Jack Antonio pisze:
>> Maybe also used to home in on a tanker?
>>
>> Jack Antonio
>> WA7DIA
>>
>> On 3/24/2024 1:55 PM, scottjohnson1 at cox.net wrote:
>>> Since Francesco is busy yacking to me on the phone, I will answer. 
>>> The ARA-25/50 are very effective, and are typically used LOS, and in 
>>> the 225-400 MHz they are quite accurate.
>>> Many downed pilots and aircraft (as well as ELTs going off on the 
>>> ramp) have bee located with these adapters.
>> ______________________________________________________________
>> ARC5 mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:ARC5 at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: https://www.qsl.net/donate.html
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: https://www.qsl.net/donate.html