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SA-6 / 2K12 (Gainful / Kub)

Mobile Surface-to-Air Missile (SAM) Defense System

Soviet Union | 1970

"The SA-6 Gainful self-propelled air defense system was produced between 1968 and 1985 and is still fielded today."

Authored By: Staff Writer | Last Edited: 04/08/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
Design work on the 2K12 "Kub" system began in 1959 under the direction of NIIP/Vympel (for the missile) and MMZ (for the tracked chassis) at the behest of the Soviet government. After successfully completing the requisite trials (delayed by various technological challenges), the design entered serial production in 1968 which ran until 1985. The system was formally introduced into limited Soviet Army service in 1967 before seeing widespread use by 1970 and operations concerning the unit continue with many nations even today - despite its 1970s heritage. The type has since seen successful combat actions through the Yom Kippur War, the Chad Civil War, the Iran-Iraq War, the 1st Lebanon War, the 1991 Gulf War and the Yugoslav Wars of the 1990s. To date at least 500 launcher units have been processed with some 10,000 missiles delivered. NATO recognized the 2K12 as the SA-6 "Gainful".

Design of the 2K12 is centered around the use of three rail-launched guided missiles utilizing an optical sight and continuous wave target illuminator. Missiles can detonate on impact or be set with a proximity fuze and hold an effective range of 15 miles against targets up to 45,930 feet in altitude. Each is powered by a solid fuel rocket motor and can reach speeds of up to Mach 2.8 which places any modern aircraft at risk. The system is categorized as a low-to-medium altitude interception device and its tracked nature assures that it can be relocated to any positions in defense of key installations. In its tracked form, the chassis makes use of six double-tired road wheels with the drive sprocket at the rear of the hull. The crew is entirely sealed in their armored vehicle while the traversing launcher - fitting the three missiles - sits atop the hull roof.

The 2K12 was modernized in 1973 to become the 2K12 Kub-M1. A further evolution of the system produced the improved 2K12 Kub-M3 of 1976. This was then followed by the 2K12 Kub-M4 in 1978 which was based on the 2K1 Kub-M3 and developed to work in conjunction with the newer 9K37 "Buk" anti-aircraft missile systems - which were inspired by the 2K12 family. The export version of the 2K12 became the 2K12E "Kvadrat" and these have since seen widespread use in Soviet/Russian-allied states and countries. The 3M9M1 became a variant in 1977 that was given an all-new tracked chassis, recognized by NATO as the "SA-6B".

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Operators of the 2K12 include Algeria, Armenia, Bulgaria, Bosnia and Herzegovina, Cameroon, Chad, Cuba, Czech Republic (formerly as Czechoslovakia), Egypt, Hungary, India, Iran, Libya, Myanmar, Mozambique, North Korea, Poland, Romania, Slovakia, Serbia, Syria and Vietnam. Wide-scale use of the series by Soviet/Russian forces is no more save for a few missile target imitator systems in circulation. Iraq and the former Yugoslavia are a few other former operators of the 2K12 series. Several localized and modified versions of the 2K12 have emerged in places like Poland and the Czech Republic.

In the Soviet inventory, the 2K12 Kub was superseded by the modern 9K37 "Buk" four-missile tracked system though both were eventually used as complements to one another for a complete integrated air defense network.

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Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the SA-6 (Gainful) / 2K12 Kub Mobile Surface-to-Air Missile (SAM) Defense System.
1 x Multi-fuel liquid-cooled diesel engine devliering between 710 and 840 horsepower.
Installed Power
40 mph
65 kph
Road Speed
161 miles
259 km
The physical qualities of the SA-6 (Gainful) / 2K12 Kub Mobile Surface-to-Air Missile (SAM) Defense System.
24.3 ft
7.4 meters
O/A Length
10.5 ft
3.2 meters
O/A Width
11.3 ft
3.44 meters
O/A Height
55,116 lb
25,000 kg | 27.6 tons
Armament & Ammunition
Available supported armament, ammunition, and special-mission equipment featured in the design of the SA-6 / 2K12 (Gainful / Kub) Mobile Surface-to-Air Missile (SAM) Defense System.
3 x 9M336 medium-range guided missiles
3 x 9M336 medium-range guided missiles (no inherent reloads carried).
Nightvision - NONE.
Chemical, Biological, Radiological, Nuclear Protection (CBRN) - NONE.
Notable series variants as part of the SA-6 / 2K12 (Gainful / Kub) family line.
2K12 - Base Series Designation; entered limited service in 1967, wide-scale service by 1970.
2K12M1 Kub-M1 - Initial Production Model; appearing in 1973.
2K12M3 Kub-M3 - Improved 2K12 series variant; appearing in 1976.
2K12M4 Kub-M4 - Based on the 2K12M3 with interoperability with 9K37 Buk missile systems; appearing in 1978.
9M336/3M9 - Improved moderznied version; available from 1977 onwards.
2K12E "Kvadrat" - Export Variant of 2K12 series
SA-6 "Gainful" - NATO designation of 2K12 series
SA-6B - NATO designation of 3M9 series
Global customers who have evaluated and/or operated the SA-6 / 2K12 (Gainful / Kub). Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 500 Units

Contractor(s): Ulyanovsk Mechanical Plant ZiK - Soviet Union
National flag of Algeria National flag of Armenia National flag of Bulgaria National flag of Croatia National flag of Cuba National flag of Czechia National flag of Egypt National flag of Hungary National flag of India National flag of Iraq National flag of Iran National flag of Libya National flag of Mozambique National flag of Myanmar National flag of North Korea National flag of Poland National flag of Romania National flag of Russia National flag of Serbia National flag of Slovakia National flag of the Soviet Union National flag of Syria National flag of Vietnam National flag of Yugoslavia

[ Armenia; Algeria; Croatia; Bulgaria; Cuba; Czech Republic; Czechoslovakia; Egypt; Hungary; India; Iraq; Iran; Libya; Myanmar; Mozambique; North Korea; Poland; Romania; Russia; Serbia; Slovakia; Soviet Union; Syria; Vietnam; Yugoslavia ]
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Going Further...
The SA-6 / 2K12 (Gainful / Kub) Mobile Surface-to-Air Missile (SAM) Defense System appears in the following collections:
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