The latest aircraft antiarmor missile is the 9A4172 of the Vikhr (AT-9) family for Ka-50 helicopters and Su-25T aircraft. It was built in Tula by A. Shipunov's group (Priborostroyeniye Design Bureau), builder of aircraft guns. The missile is fired from launchers containing a 6-8 pack. Its guidance system combines radio-command guidance during the initial flight stage followed by laser-beam guidance afterwards. The missile is a supersonic one with a 8-10 km range, its caliber is 125 mm, and its weight together with the launcher is 60 kg. The two-stage shaped-charge warhead is capable of piercing armor of equivalent to 900 mm thickness. With the switch set in the appropriate position on the pilot's panel in the cockpit, the Vikhr operates as an air-to-air missile with a radar turn-on for approach navigation. It is effective against airborne targets flying at speeds up to 800 km/h (600 km/h during rendezvous tacks).
- "Survey of Russian Guided Air-to-Ground and Anti-Ship Missiles" by Piotr Butowski, NOWA TEKHNIKA WOJSKOWA March 1995 No 3, pp 15-19 [JPRS-UMA-95-023: 7 June 1995]
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