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The Tor missile system ( ; ) is an all-weather low to medium altitude, short-range surface-to-air missile system designed for engaging airplanes, helicopters, cruise missiles, precision guided munitions, unmanned aerial vehicles and ballistic targets. Originally developed by the Soviet Unionmarker under the GRAU designation 9K330, the system is commonly known by its NATO reporting name, SA-15 "Gauntlet". A navalized variant was developed under the name 3K95 "Kinzhal", also known as the SA-N-9 "Gauntlet". Tor was also the first air defence system in the world designed from the start to shoot down precision guided weapons like the AGM-86 ALCM.

Development

The development of the Tor missile system started on the 4th of February 1975, in response to the directives of the Central Committee of the CPSU. Initiated as a successor to the 9K33 Osa (NATO reporting name SA-8 "Gecko"), development on the land based version was conducted in parallel with a navalized variant of the system (3K95 Kinzhal/SA-N-9 "Gauntlet), to be installed on a number of upcoming ship classes, including the Kirov class battlecruisers, and retrofitted onto older ships. Responsibility for development was given to the Antey design bureau headed by V.P. Efremov, the missiles designed by MKB Fakel under P.D. Grushin and the Altair design bureau headed by S.A. Fadeyev responsible for development of Kinzhal. All the developers and manufacturers of the Tor missile system would become unified into Almaz-Antey in 2002.

The project was given strict design specifications to meet; Tor had to provide extended detection and tracking of fast, low radar cross section targets and be capable of quickly and efficiently dealing with massed air raids, whilst providing a high degree of automation and integration with other air defence assets.In order to meet these demanding specifications, the designers used a variety of new technologies, including advanced phased array radar for improved detection and tracking performance, enhanced digital information processing, and vertically launched missiles to improve reaction time and increase the number of readily available munitions. After a period of testing and evaluation between December 1983 and December 1984, the land based system was accepted into service on March 19, 1986.

Despite starting testing earlier than its terrestrial counterpart, the naval variant, Kinzhal, had a more protracted development. After an extended testing period using a Project 1124 Grisha class corvette (including the engagement and destruction of four P-5 Pyatyorka (SSC-1a Shaddock) anti-ship missiles in 1986) Kinzhal finally entered service in 1989.

Improvements



Even while the Tor was being introduced into service, work started on improving the system, resulting in an enhanced version, the Tor-M1. Many improvements over the original system were made; these included the addition of a second fire control channel, allowing two targets to be engaged at once; as well as upgrades to the optical tracking system and computer equipment. ECM protection and warhead design were also modified, as was the ammunition handling system. State tests, conducted between March and December 1989, showed that the result was a system which could engage more targets in a shorter time frame with reaction times reduced by over a second and an increased probability of target destruction. The M1 was introduced into service in 1991. Further modifications occurred as a response of insight gained from the 1995 NATO bombing in Bosnia and Herzegovina resulting in the Tor-M1-1, or Tor-M1V, which offered improved network connectivity and ECM functions.

Upgrades have continued over the lifetime of the system, with developer Almaz Antey unveiling the newest incarnation of the Tor missile system, the Tor-M2E,, at the MAKS Airshow in 2007. The latest variant features improved fire control radar coverage, and four guidance channels, allowing up to four missiles to be guided at any one time. The Tor-M2E also offers the option of a wheeled chassis, as well as a new digital computer system and all weather optical tracking system.

Description

A 9K332 TLAR with tracking radar covered.
Photo by GulfLINK.
The closest foreign analogues to the Tor, in function and operation, are systems like the Britishmarker Rapier missile and Frenchmarker Crotale missile systems. All 3 systems are mobile and self propelled, Tor using the 9A330 combat vehicle, which carries a crew of four (one driver, three operators), and acts as an autonomous Transporter, Launcher, And Radar unit, or TLAR (similar to but not a TELAR, as it does not erect the missile to a launch position). The 9A330 is based on the GM-355 chassis manufactured by MMZ, the Tor-M1 using the improved GM-5955. Like Rapier and Crotale, in addition to the tracked vehicle, there are also static and towed versions of the Tor, as well as a wheeled technology demonstrator, the Tor-M2E.

Arranged in a similar fashion to the previous 9K33 Osa and 9K22 Tunguska ( ) air defense systems, Tor’s TLAR features a turret with a top mounted target acquisition radar, and frontal tracking radar, with 8 ready to fire missiles stored vertically between the two radar. The target acquisition radar is a 3D F band pulse doppler radar, equipped with a truncated parabolic antenna, and a mechanically, later electronically, scanned in azimuth with a 32 degree sector view, and has an average power output of 1.5 kW, which provides a maximum detection range of 25 km/16 mi. For reference, a McDonnell Douglas F-15 at an altitude of 6 km has a detection probability of 0.8 at this range. The electronic ‘heart’ of the system is a digital fire control system, which allows detection of up to 48 targets and the tracking of ten at any one time, and integrates IFF functionality; the IFF antenna being mounted above the search radar.

The target engagement radar is a G band/H band (later K band) pulse doppler radar with an electronically scanned (in azimuth) phased-array antenna. The radar is classed as a thinned array (design using fewer elements) incorporating only 570 phase shifters and uses linear polarization. The radar has an average power output of 0.6 kW providing a maximum detection range of 20 km/12 mi. An F-15 type aircraft had a detection probability of 0.8 at this range. Originally Tor could only engage one target at a time, and with only two of its missiles. Later variants of the Tor system (Tor-M1 and M2E) incorporate additional fire control channels, as well as improved fire control computers, allowing the system to engage two (M1) and then four (M2E) targets, whilst simultaneously guiding up to four (M1) and then eight (M2E) missiles.. There is also a small antenna on the top of the target engagement radar to communicate with missiles after launch. Together these radars carry the NATO reporting name "Scrum Half". To reduce the dimensions of the vehicle, the target acquisition radar can be folded down horizontally when travelling, and the tracking radar can partially rotate away from vertical. To allow engagements in the ECM heavy environment that is the modern battlefield, the 9K332 is equipped with an optical tracking system, complementing the main radar.

As a fully mobile system, the Tor is capable of acquiring and tracking targets while the TLAR is moving. Due, however, to the interference with launch operations while on the move, missiles can be fired only when the system is in a stationary position. Once set up, the reaction time (from target detection to engagement) is described as 5–8 seconds, depending on the variant; however, reaction time is somewhat longer (around 10 seconds) whilst in motion and firing in short halts. To facilitate this mode of operation, an auxiliary power unit (APU) is fitted so that the main engine can be shut down while the radar and missile system continue to operate when stationary, enabling long periods of readiness. The digital computers allowed for a higher degree of automation that any previous Soviet system of its type. Target threat classification is automatic and the system can be operated with little operator input, if desired. The high performance computing system combined with a phased array radar are the main reasons for the system's high degree of accuracy, ability to intercept small, fast and highly maneuverable targets, and the very fast reaction times of the system. It is equipped with NBC (nuclear, biological and chemical) protection. Reflecting the complex nature of system, the price per unit was quoted as $25 million in 2007 .

Typically, a battery of four Tor vehicles is accompanied by the mobile Ranzhir-M ( ) command center. It allows for efficient allocation of tasks between the individual Tor-M1 crews and allows each TLAR to be linked into a wider air defense system, thereby increasing target detection range and reaction time.

3K95 Kinzhal

SA-N-9 launcher on the Udaloy class destroyer Admiral Vinogradov.
The 3K95 "Kinzhal" ( – dagger) is the naval version of the Tor missile system developed by Altair and has the NATO reporting name SA-N-9 Gauntlet. Using the same 9M330 missile as the land based version, the system can be mounted on vessels displacing over 800 tonnes and is known to be installed on Admiral Kuznetsov class aircraft carriers, Kirov class multimission cruisers, Udaloy class anti-submarine destroyers and Neustrashimy class frigates.T he naval version of the later Tor-M1 is known as the "Yozh" ( - hedgehog), while the export version of the Kinzhal is known as "Klinok" ( - blade).

Stored within rotary VLS modules, the missiles are clustered into launchers comprising three to six modules (32 (Neustrashimy), 64 (Udaloy) or 192 (Kuznetsov, Kirov) missiles) and mounted flush to the deck. Each module has up to eight missiles stored ready to fire; during firing the missile is cold launched using a gas catapult before the launcher brings the next round to a firing position.
SA-N-9 firing from the Kirov class cruiser Frunze.
Fire control (FC) is handled by the 3R95 multi-channel FC system, (NATO reporting name Cross Swords), composed of two different radar sets, a G-band target acquisition radar (maximum detection range 45 km/28 mi,) and a K-band target engagement radar, (maximum tracking range 15 km/9 mi ) that handles the actual prosecution of a target.

Using two top mounted, mechanically scanned, parabolic target acquisition radars, the fire control system provides a 360 degree field of view, as well as IFF. The target engagement radar is an electronically scanned phased array antenna of the reflection type mounted on the front of the fire control system with a 60 degree field of view. Much like its land based sibling, the target engagement radar can track and guide eight missiles on up to four targets at once and is effective to a range of 1.5–12 km and an altitude of 10-6000 m. The system has a reaction time of 8–24 seconds , depending on the mode of operation, and is managed by a crew of 13. Additional missile guidance antennae can be seen around the fire control system and the 3K95, like the upgraded Tor launchers, is equipped with a secondary infrared guidance system. The 3R95 can also provide fire control information for the vessels AK-630 close in weapons systems (CIWS) providing a second line of defence should anything penetrate the missile layer.

Variants

  • 9K330 "Tor" with the 9M330 missile, minimum range 2 km (1.2 mi), introduced in 1986
  • 9K331 "Tor-M" with the 9M331 missile, minimum range 1.5 km (0.9 mi), introduced in 1991, with greatly improved missile accuracy and the ability to engage two targets simultaneously
  • 9K331M "Tor-M1", "Tor-M1T" with the 9M331 missile, minimum range 1.5 km (0.9 mi)
  • 9K332 "Tor-M2", "Tor-MTA", "Tor-MTB", "Tor-MTS" with the 9M331 missile and a new surveillance radar, minimum range 1 km (0.6 mi)


Missiles

4 9M330 Missiles in one of the two launching racks


Weighing in at 167 kg (368 lb), the 9M330 missile is 3.5 m (11.5 ft) long, carries a 15 kg (33 lb) warhead and has a peak speed of around Mach 2.8. Utilizing command guidance and radar controlled proximity fuzes, the missiles can maneuver at up to 30Gs and engage targets flying at up to Mach 2. Cold launched, the missiles are propelled out of the vehicle before the solid fuel rocket motor fires and the gas-dynamic maneuvering system turns them toward their target. Missiles can also be fired against surface targets. Each missile is a sealed round, stored in two groups of four. Engagement range is up to 12 km (1-7.5 miles) with minimum range varying between 100-2000 m (328-5,621 feet), depending upon version and an effective altitude of 10-6000 m (33-20,000 ft).

Kill probabilities for later versions are quoted as:
  • 0.92-0.95 against aircraft
  • 0.80-0.96 against helicopters
  • 0.60-0.90 against cruise missiles (with an effective range of around 5 km/3 miles)
  • 0.70-0.90 against precision munitions (LGBs, glide bombs, etc.)
  • 0.90 against UAVs


Combat history

In a press conference regarding the 2008 South Ossetia War, Russian defence ministry spokesperson Anatoliy Nogovitsyn speculated about the use of the Tor missile system by Georgiamarker against attacking Russian aircraft. The system suggested as a possible cause of the loss of a Tu-22MR strategic bomber, shot down by Georgian air-defences while on a reconnaissance mission during the conflict.. While the loss of the bomber has also been attributed to the Buk-M1, which Georgia obtained from the Ukrainemarker in 2007, if the loss can be attributed to Tor it would be the first time the (as yet unproven) system has seen combat use.

Operators

The HQ-17 (Hongqi-17) is the reported Chinesemarker designation for the Tor missile system, which is replacing the HQ-61. There is no confirmation that China is currently manufacturing its own licenced copy of the Tor system.In 1996, China ordered 14 Tor-M1 missile systems from Russia which were delivered under contract in 1997. In 1999, another contract for 13 Tor-M1 systems was signed between Russia and China. Delivery of the systems took place in 2000.

Russia has delivered an undetermined number of Tor-M1 systems (originally built for Greece) to the Islamic Republic of Iran amid protests from the United States. It is suspected that at least 29 such systems have been transferred along with service contracts with an approximate value of $700,000,000 USD.
  • - 35
  • - 6
  • -
  • - 25
  • - 29
  • - 20
  • - 120
  • - 100
  • Venezuelamarker - 12 on order
  • Yemenmarker - 12


References

  1. http://www.deagel.com/Air-Defense-Systems/Tor-M1_a000375001.aspx
  2. http://en.fondsk.ru/article.php?id=2266


External links




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