The Sch141 Kishchnik mission system is integrated by Leninetz Holding of St. Petersburg. This includes:
the W004 radar system with passive electronic scanning. This can capture targets on the ground or in the air. In navigation mode it displays a radar map and allows automatic low-level flying.
the W004 radar system in the long tail boom between the jet engines. This surveys the area behind the aircraft for enemy aircraft.
the Kibiny system (L175W) for electronic combat management. It is made by Kaluga-based KNIRTI and works with radar warning receivers to accurately localise threats, an infrared-based rocket warning system, active jammers and chaff/flare dispensers (each with eight cartridges).
the K102 system made by Ramenskoje-based RPKB for controlling the aircraft's electronic systems, including the navigation system, the displays and the KSS-2 communication system.
the Platan homing system with a TV camera and laser target illuminator made by Yekaterinburg-based UOMZ. Geofizika in Moscow was brought in to develop an electronic optical navigation and targeting pod.