60 Votes (4.68 Average) and 8,702 Views  

Antonov An-12 (UR-CNN)
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Antonov An-12 (UR-CNN)

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Ronald Mullins
Great photo. Love the 'full discs'!
ken kemper
Gorgeous paint scheme on this Antonov.......

Great photo Brendan.
jayfulton
Look how much smoke those turboprops generate.
Diana Rose
Love The Livery Paint Job!
Diana Rose
Would someone please tell me why a million $ plane has to have that outside wire strung from top of the rudder to top of the cockpit? It seems like an after-thought, but there has to be a valid reason. Used to see it on older aircraft.
warmwynds
It might be that they have a radio transmitter with a particular frequency range, perhaps high-frequency band which requires this lengthy wire. That would be my guess.
Dave Sheehy
That is an ADF sense antenna.

All ADF systems have loop and sense antennas. With the older ADFs, they are two separate antennas. The loop antenna is a flat antenna usually located on the bottom of the aircraft, while the sense antenna is a long wire that often runs from top of the tail to the top of the of the cabin.

https://www.avweb.com/avionics/adf-basics/
CHRIS ROBEY
Good point Dave! By coincidence, I have just been looking through a dusty volume from the late 1960's on ADF theory. I probably once knew but had sadly long since forgotten, that with the very early DF direction finding systems (think Douglas DC2's), it was necessary to turn the aircraft onto various different headings to check the bearing to/from a station, so as to work out your position. But this function was later able to be incorporated into the unit, hence the "A" for automatic in "ADF".
ACTIVITY LOG
Want a full history search for UR-CNN dating back to 1998? Buy now. Get it within one hour.
Date Aircraft Origin Destination Departure Arrival Duration
29-Mar-2024 UnknownNear Abuja, FCTGirona-Costa Brava () First seen 09:40AM WAT Last seen 04:39PM CET 6:59
28-Mar-2024 UnknownWalvis Bay ()Near Principe 10:43AM CAT Last seen 02:11PM GMT 5:28
27-Mar-2024 UnknownDouala Int'l ()Douala Int'l () 03:11AM WAT 03:12AM WAT (?) 0:00
24-Mar-2024 UnknownNear Kano, Kano StateNear Makurdi, Benue State First seen 01:18PM WAT Last seen 02:13PM WAT 0:54
23-Mar-2024 UnknownLuxembourg Int'l ()Near Algiers 03:32PM CET Last seen 06:24PM CET 2:51
23-Mar-2024 UnknownGlasgow Prestwick Int'l ()Luxembourg Int'l () 11:01AM GMT 01:52PM CET 1:51
22-Mar-2024 UnknownGran Canaria Int'l ()Glasgow Prestwick Int'l () 11:03AM WET 05:21PM GMT 6:18
20-Mar-2024 UnknownLiege ()Gran Canaria Int'l () 09:41AM CET 03:00PM WET 6:18
19-Mar-2024 UnknownTurku ()Liege () 03:43PM EET 05:36PM CET (?) 2:53
19-Mar-2024 UnknownPiešťany ()Turku () 08:59AM CET 12:55PM EET 2:56
Basic users (becoming a basic user is free and easy!) view 3 months history. Join
 

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