SAM system S-125-ML (Pechora-ML)

Upgrade of Surface-to-Air-Missile (SAM) system S-125 (Pechora, Neva, SA-3 Goa) up to the level of S-125-ML “Pechora-ML” is designed for protecting political and administrative centres, strategic civil and military sites, friendly forces against various means of enemy air attack.

Composition:

  • missile guidance radar SNR-125-ML (consists of UNV-ML antenna post and UNK-ML control cabin);
  • SM-RB-125-ML missile battery (consists of four launchers 5P73-ML);
  • autonomous power supply system SAES-ML;
  • set of power cables KS-ML;
  • set of control cables KU-ML;
  • spare parts, tools and accessories kit.

S-125-ML may additionally include:

  • upgraded target acquisition radars, such as P-18MLMARS-LPRV-16ML;
  • step-down transformer unit providing connection to high-voltage lines;
  • wheeled chassis for system transportation;
  • technical battery.
Detailed information
Benefits of upgrade of SAM system S-125
  • Capability to detect and destroy low-flying targets, cruise missiles, including very low observable (VLO) (“stealth”);
  • Improved jamming resistance to all kind of active and passive jamming, clutter due to application of new technologies, jamming resistance and signal processing techniques;
  • Automation of:
      • control from superior command post;
      • acquisition and processing of surveillance data;
      • detection and tracking of targets;
      • selection of optimal model for particular missile launch conditions;
      • missile preparation and launching;
      • monitoring of technical status and operability of system components;
      • recording of all data on operation of the ADMS major elements;
      • crew training.
  • expansion of kill envelope, enhancement of target kill probability in conditions of passive interference and intensive jamming due to introduction of new missile guidance method, optimized radar processing techniques, increased detection and tracking range;
  • capability of fully automatic target optical tracking;
  • reduced response time and firing cycle;
  • extended service life – up to 15 years;
  • improved reliability and MTBF (1500 hours) due to new component base;
  • GPS-based automatic topographic reference and alignment of system components at site of operation;
  • advanced techniques for voice transmission;
  • digital data exchange between system components, superior command post and other consumers;
  • interfacing capability with a wide range of surveillance sensors and control systems;
  • evaluation of combat results due to recording and processing of all data on system operation;
  • crew training capability by simulating air situation of any type and friendly actions;
  • reduced number of system components. Standardized, modular configuration of equipment;
  • notably simplified maintenance of system;
  • reduced power consumption;
  • improved ergonomics.
Performance characteristics of S-125-ML

Parameter

Before upgrade

After upgrade

Channel capacity, target/missile

1/2

1/2

Maximum detection range (tactical fighter):

 

 

  • at 7 km altitude

39 km

46 km

  • at 0.35 km altitude

28 km

34 km

  • at 0.05 km altitude

23 km

28 km

Engagement range (tactical fighter):

 

 

  • at 7 km altitude

30.5 km

37 km

  • at 0.35 altitude

22.5 km

27 km

  • at 0.05 altitude

21 km

25 km

Maximum speed of engaged targets:

 

 

  • approaching

700 m/s

800 m/s

  • receding

300 m/s

300 m/s

Range of detection and stable tracking of targets with RCS of 0.1 m2:

 

 

  • Rdet

15 – 17 km

19 – 21 km

  • Rtr

9 – 12 km

11 – 15 km

Parameters of engagement envelope:

 

 

  • minimal engagement altitude

0.02 km

0.02 km

  • maximum engagement altitude

18 km

21 km

  • range of near boundary

3.5 km

3.5 km

  • maximum horizontal range to remote boundary

17 km

27 km

  • maximum slant range to remote boundary

25 km

34 km

  • maximum course parameter

16 km

24 km

Single-shot kill probability of a target (Pk):

 

 

  • tactical fighter

0.45 - 9

0.7 – 0.98

  • cruise missile

0.04 – 0.48

0.35 – 0.85

SAM guidance methods:

 

 

  • three point (TP)

yes

modified

  • half lead (HL)

yes

modified

  • optimal dynamic control (ODC)

-

yes

Target channel auto-tracking modes:

 

 

  • radar

yes

yes

  • TV-optical

-

yes

  • thermal optical

-

option

Protection from jamming:

 

 

  • clutter rejection by MTI

up to 30 dB

up to 40 dB

  • asynchronous interference rejection

-

yes

  • ECCM against deception repeaters

-

yes

  • ECCM against noise jamming (2700 W/MHZ with 100 km equivalent range)

-

yes

Time to acquire target

10 – 15 s

2.5 – 3 s

Interfacing with IFF

“Parol-4” system

option (type chosen by customer)

Simultaneously interfaced launchers

up to 4

up to 4

Power supply:

 

 

  • power consumption

More than 100 kW

Not more than 45 kW

  • connection to mains 3-phase, 380V, 50 Hz

-

yes

  • 3-phase 220V 400Hz requirement

yes

-

Autonomous power supply:

 

 

  • complex power generator

yes

yes (with standby)

  • autonomous power generators at UNV, UNK and launchers

-

yes

  • UPS and UNK cabin (40 min of operation)

-           

yes

Automatic technical monitoring

-

yes

Number of maintenance operations

454

47

Deploy/stow time at site of operation:

 

 

  • Standard mode

2 h 10 min

35 min

  • Express mode

-

10 min

Number of cables used

103

24

Cross-country ability

 

not worse than prototype

MTBF

not less than 45 h

not less than 1500 h

Target acquisition from radars with digital output

-

Yes (up to 4)

Direct automated control from command post

-

yes

Built-in radios for data and voice transmission

-

option

Built-in GPS

-

yes

Recording of all operations

-

yes

Automatic recording of technical data

-

yes

Built-in planning and integrated training mode (on simulated targets against real ground and air situation)

-

yes


Main characteristics