Anti-aircraft missile system C-125 Pechora-2

The system consists of the following fixed assets.

• The radar of detection of "Casta-2E2";
• one or two radars of escort and guidance;
• the control cabin of UNK (UNK-M);
• up to eight launchers with two missiles each;
• power supply and technical support facilities.

Launch of the rocket - inclined, with the launcher facing the corner of the place and azimuth. Missile flight control and pointing at the target is carried out via radio commands received from the ground-based guidance radar, while detonation of a combat unit on command from a radio detonator when approaching the target at the required distance or from the guidance station.

Upgrading of the initial complex C-125 to the level of "Pechora-2" provides:

• Creation of a new self-propelled launcher 5П73-2М on the modified MZKT-6525 chassis with increased cross-country ability and 6x6 wheel arrangement.
• Replacement of the next analogue equipment of the complex with digital one:
  • coordinate determination devices (CCD);
  • control command generation devices (UVK);
  • devices for selection of moving targets (MTS);
  • automated start device (AST);
  • devices of low altitude (MW);
  • training and control equipment;
  • Interference demodulation devices (ICS);
  • synchronizer devices.
• Introduction of new protection means against active and passive radio interference.
• Introduction of autocapture and target tracking devices into the TV channel.
• Introduction of a device providing special space scanning methods.
• Modernization of the missile using a new launch engine, combat unit and radio detonator for optimal detonation of the BC taking into account the directional pattern of the detonator and the field of flight of fragments.
• Transition from towed cabins to car chassis.

The starter unit 5П73-2М has six driving wheels with variable pressure tires. The power unit is a V-shaped eight-cylinder diesel engine YAMZ-238D with an output of 330 hp. The tire pressure is regulated by a switch installed in the cabin. The starter unit has an integrated power supply system and the minimum time of deployment at an unprepared starting position. Standard towable PU 5P73 without two outer rails is used for manufacturing of the art part. Self-propelled PU is transported in a loaded state, with two missiles, which greatly simplifies its preparation for combat operations. Communication of the booster with the control cabin can be carried out via wireline or telcode radio. Modernization of the booster unit also involves replacing its electrical equipment with a modern element base.

A new transport and charging machine PR-14-2M equipped with a hydraulic manipulator for charging and discharging by crane method is introduced into the starting battery, which more fully meets the conditions of work at an unprepared site (see photo).

During the modernization, 44 blocks and 6 cabinets are removed from the equipment of the cabin UNK (UNK-M) and two cabinets with digital equipment UK360, UK370 are introduced again. In an individual set of ZIP introduced nodes and elements that provide the work of the newly introduced equipment. Delivered together with the PIP equipment is 50% of the equipment volume. Introduction of highly reliable equipment on modern technological and element base increases reliability and durability of the complex.

NEW WARFARE AND MAINTENANCE CAPABILITIES

• Modernization provides for the introduction of the mode of target acquisition automation, displaying information about the parameters of target movement and the boundaries of the target area on the guidance operator's workstation screen (RM), which simplifies the combat calculation algorithm and reduces the working time of the complex, the guidance operator's screen displays the "Formula" of the guidance station operation containing the following information
  • the current value of target AZIMUT (beta) in degrees;
  • the current value of the target Epsilon angle of view in degrees;
  • angularity to the target (E) in km with an accuracy of 0.1 km;
  • Target height (H) in km with an accuracy of 0.1km;
  • Target speed (V) in m/s accurate to 1m/s;
  • Target PARAMETER (P) in km with an accuracy of 0.1 km.
  • The target area (inclined range) is also shown with special icons:
    • the far limit of the kill zone;
    • the nearest boundary of the kill zone;
    • the meeting point at the time of missile launch;
    • the guaranteed area of engagement.
• After the launch of the missile in the "Formula" on the place of information about the angle of the place appears information about the deviation of the missile from the designated trajectory, and at the point of meeting the miss is fixed in meters.
• The target acquisition zone and the probability of hitting the target are increased in the station operation mode without interference and under the influence of intensive radio interference due to the increase in accuracy of target tracking, optimization of signal processing methods, reduction of fluctuations errors and elimination of drifts of "zeros". Noise immunity of the complex from various types of active and passive radio interference, as well as from the underlying surface due to the use of new methods of protection against interference and signal processing methods.
• Due to the introduction of navigation system and telecode communication, automatic target designation reception from any external radar information sources is provided;
• The capabilities of the complex with the use of a tele-optical visier are being expanded by introducing the equipment of auto capture and auto tracking of the target and high accuracy of its coordinates in this mode.
• It is possible to warn about the appearance of the target by introducing an audible target indication device.
• It is possible to follow the target by extended coordinates in case of temporary information loss in radar and tele-optical tracking modes.
• Introduction of the digital simulator provides imitation of complex air situation, different variants of attack, different types and methods of influence of radio interference, which allows improving the quality of preparation and training of combat calculations of the complex.
• Introduction of the self-control equipment and auto troubleshooting in the newly introduced equipment, introduction of new types of replacement elements facilitates the work of calculations on checking and preparation of equipment for combat work, reduces the time of troubleshooting.
• The introduction of highly stable equipment with a small number of adjustable parameters, the removal of a significant amount of analogue equipment can reduce by 2-2.5 times the volume and time for routine work. At the same time, the work of the maintenance personnel of the station is simplified. Energy consumption of the station with new equipment is reduced by 30%.
• Introduction of the digital equipment of the start-up device reduces the time of preparation of initial data, increases the accuracy of calculation of the affected zone boundaries.