The following are some more details regarding the upgradation of the MiG-21 Bison, in addition to those posted by Arjun MK1:
The upgrade mainly revolves around the Phazotron Kopyo-M radar and integrated BVR attack capability with R-77 BVRAAMs. Other features include a SURA HMS, a semi-glass cockpit and a Sextant Totem-3000 Ring laser gyro nav. system with GPS, to mention a few. Note the conformal countermeasure dispensers, the new Tarang RWR's antennae on the tailfin and the single piece windshield.
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This MiG-21 Bison (CU-2252) is from the No.3 'Cobras' squadron. It's loadout includes the not so commonly seen seeker module of the KAB-500Kr TV guided bomb on the centerline pylon not to mention an R-73 training round and an R-77 BVRAAM carried underwing. The aircraft's sophisticated EW suite comprises of a DRDO Tarang RWR/RHAWS, "Tempest" internal Self-protection jammer (SPJ) and the conformal CMDS.
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Apart from the new nose-cone, the forward fuselage needed some modification/extension to accommodate the new Kopyo-M radar. Apparently this modification does not feature on the MiG-21-93s which were photographed over Russia during their testing phase, giving the impression of larger nose-cones on the latter.
Source with photos:
Comments: The MiG-21 Bison has the avionics nearing in performance to 4th generation fighter aircraft. The MiG-21 Bison is the one of the most advanced MiG-21s in the world.
