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Air Force Secretary Michael W. Wynne has said that he wants all friendly platforms in an area to be able to see what an F-22 sees with its systems. At present, this kind of "common air picture" is not attainable because existing systems cannot transmit F-22 displays to other aircraft. Pilots must communicate by voice. Several F-22s, however, can share the same situation display. Data links that will allow the transmission of more information to other aircraft is one of the planned improvements for the program.
R-862 UHF, R-864 HF, P-591 voice warning system, SPU-9 intercom; SRO-2P IFF transmitter and SRZ-2P receiver; SO-69 transponder. Flight: A312 Radikal-NP or A-331 Shoran, A-723 Kvitok-2 Loran. Marshrut long-range and Tropik medium-range nav systems. ARK-19 radio compass, RV-15 radar altimeter, RPM-76 marker beacon receiver. Mission: In four-aircraft group interception mission, only lead MiG-31 is linked to AK-RLDN automatic guidance network on ground; other three MiG-31s have APD-518 digital data link to lead aircraft, permitting line-abreast radar sweep of zone 430 to 485 n miles (800 to 900 km; 495 to 560 miles) wide by 140º sector scanning angles. Semi-retractable Type 8TP IR search/track sensor under cockpit; tactical situation display. BAN-75 command link; APD-518 digital air-to-air datalink; Raduga-Bort-MB5U15K air-to-ground tactical datalink; SPO-155L RHAWS; Argon-15 digital computer.
In fact it is so powerful that the flight leader of a formation can act as a small AWACS (basically a giant plane with a giant radar) if linked to a ground radar and another air crew. It can also passively detect aircraft with a retractable infrared search-and-track sensor common to Russian aircraft, but rare on their western counterparts. The Mig-31 can even track and kill targets such as cruise missiles from ground level up to its maximum altitude.
"A unique weapons control system took care of the mission, enabling the aircraft to operate as an airborne command post (ABNCP). A flight of four MiG- 31s, the lead aircraft acting as ABNCP, could trade target information over a strip of terrain 800km (500 miles) wide. The interceptors could split multiple targets between themselves, or pass some of them on to the leader of another patrol if there was more that they could chew. All radio communication was automatically on channels protected from electronic eavesdroppers. Three MiG-31s patrolling an area could provide 360 degree coverage. Besides, a MiG31 could direct up to three of its fellow MIG-23P 'Flogger', MiG25PD, MiG-29 'Fulcrum" or SU-27 'Flanker' interceptors, obviating the need for them to use their own radars and thus reveal their position."
Page .82 from a pdf. "MiG-25 Foxbat, MiG-31 Foxhound, Russia's Defensive front line" published in 1997 by Midland Publishing limited and Stephen Thompson Associates.
Information provided by MiG OKB staff/designers/engineers.
Thats quite a simplistic explanation of the events surrounding the shootdown of the F-117 eh? Also given the persistent rumors of the Russikies selling thier nazi like Serb brothers as well as the Iraqi's advanced air defence systems, as far as Im concerned its alot of arm chair bluffing about the invincibility of these systems
just as teh mig cannot link with other aircraft - amoungst themselves with same equipment its fine - but with other aircraft with older gear it cant - the mig31 cannot link to a mig29 - so would give a voice talk through.
Thw MiG-31's datalink (APD-518 Intra-flight Datalink) was very very well in service when the aircraft entered servie in early 80s. Indeed, Su-27S/P (only VVS/V-PVO nomenclature have nothing to do with special setups) had also a very very similar IFDL to that of the MiG-31 since the IOC in 1985, the TKS-2-27/K-DlA, that allows up to 16 aircraft to share information (radar contacts, targetting priorities, aircrafat position, etc) over a 10sec refresh date (6.5sec for 4 group a/c, 2 sec for 2 group a/c). The datalink simbology is pretty similar in both aircfat and I would made an educated guess that both datalink are compatible.
What made the MiG-31's IFDL different from that of the Su-27S/P is that it allows full a/c control over the "slaves", this means, that the commander of the group could make control directives (just like the Vozdukh-1/Lurch series of C2BM sets) and direct their aircraft towards targets and so. This is not allowable in the TKS-2-27.
Bot aircraft had Lazur type datalinks too (running in 300-400MHz frequency with from 30 to 300bits/s of speed), while the TKS-2-27 at least could run in IFDL modes at up to 4.6kb/s of speed. I don't know if TKS-2-27 allows one Flanker to share fire control of an R-27R/ER from another Flanker, but I'm pretty sure this is a possible cpability for the APD-518 (and maybe the little improved set installed in Su-27PU specialized Long-Range Air Superiority/Air Defense Fighter for V-PVO).
Both sets could receive intercept directives AND target info from Rubezh/Senez/Lurch/Vozdukh-1 sets and from A-50 SDRLO.
The MiG-31B uses a little improved version of the APD-518 (don't know designation sorry) that allows not only to receive or interchange contacts between the group BUT also to send information/contacts to command posts (to Rubezh C2BM per example) so they can send the info through the chain to other Air Defense assets (like the Polyana-4DM or Baikal sets for control of Air Defense Brigades and Regiments), forming a better SA for all around. Also the range of comms was 4 times longer (make sense) and more jam-proof.
I don't know exactly how did the Tu-128-M4 (or wathever is called I'm not that good with those pocket-interceptors) works, but could guarante you, isn't the same thing as APD-518/TKS-2-27. From operation frequency, to bandwith to just interface...don't see it
and FredT is making an opinion that the serbs are `nazi` like not the russians - and its his opinion.