K2 Black Panther () is a South Korean fourth-generation main battle tank (MBT), designed by the Agency for Defense Development and manufactured by Hyundai Rotem. The tank's design began in the 1990s to meet the strategic requirements of the Republic of Korea Army's reform for three-dimensional, high-speed maneuver warfare based on use of network-centric warfare.
Over its predecessor, the K1, the K2 features improved protection, mobility, firepower, increased indigenous production, and crew operability. The focus of the design places emphasis on lower weight, higher mobility and increased modularity. The K2 Black Panther also acquired several modern features such as extensive integration of Vetronics, advanced sensors, space optimization, and increased automation.
Development of the K2 entered System Concept Research phase in 1995, Exploratory development from 1998 to 2002, and started Full Scale Development in June 2003. Development of the vehicle excluding the powerpack concluded in 2008, following trials by the army. Work on the domestic powerpack kept the tanks from entering service until in 2012, when 100 EuroPowerPacks were implemented on the first production batch. The first 6 K2 Black Panthers entered service with the Republic of Korea Army on June 29, 2014.
History Development South Korea has been accumulating tank development and production technology to increase its self-reliance in producing arms. In 1976, South Korea upgraded its M48 Patton tanks. In 1987, the K1 88-Tank, designed by General Dynamics Land Systems (GDLS), was commissioned for service. South Korea participated in its development, and gained tank production and partial development capabilities. The K1 was a derivative of the M1 Abrams, designed by Americans and produced in South Korea, and its associated legal agreements limited South Korea's rights for export, logistics, and future enhancements.
In the early 1990s, Korean engineers suggested producing a new domestically designed tank using the latest available technology, but the military refused due to cost overruns. Instead, South Korea chose to upgrade the K1, and received a technical data upgrade package from GDLS. However, it was limiting its involvement to strengthen its Defense industrial base while taking responsibility for possible failure. South Korea advanced in turret designs, fire-control systems, sights, and composite armor during this process. The operational prototype of the new variant K1A1 was later displayed in 1996, but the 1997 Asian financial crisis delayed its mass production. South Korea worked on further localization during the delay and managed to develop its own designs or produce most parts of the K1A1 under license.
While K1A1 development was ongoing, South Korea began to plan a new domestic main battle tank as its tank design and manufacturing capability matured. There were three main reasons for the development of the new tank:
Firstly, despite the increase in localization, K1A1 was still an American design that falls under the United States' export control to protect intellectual rights, which creates a burden when exporting.
Secondly, the M48A3K and the M48A5K operated by the South Korean military were aging designs and needed to be replaced with newer, improved designs.
Thirdly, the Republic of Korea Army was adapting new tactics called three-dimensional high-speed maneuver warfare with network-centric warfare. When developers asked the Army what kind of performance the Army wanted to see with the new tank, the Army replied that network warfare capability for command and control is the top priority, not firepower, defense, or mobility. This new capability would need to be built into the new tank.
Criticism was made on the new tank developments: "It seemed to many to be too early to adopt a new model, and there were also doubts because it would be the first tank ever designed domestically." However, consensus of the defense sector (the politicians, the military, and developers) viewed the K1 tanks as a "humiliation", because the tank itself was a proof that South Korea lacked in tank developing technology. It was a matter of national pride to have the ability to design and build a leading main battle tank.
Developers claimed that during times of war, military logistics and support of armaments could stop when geopolitics came into play, as witnessed in the Middle East and Eastern Europe. There were also criticisms of many European nations as lacking investment in domestic warfare technology, and relying too much on weapons from partnerships. Historically, South Korea always maintained a policy of self-reliance on weapons, and so the new tank program was authorized.
From July 1995 to December 1997, system concept research was conducted including analysis of required operational capability (ROC), function, performance, operations, logistics, and the technology required. The first step was to develop a modeling and simulation system for theoretical study and analysis. South Korean developers invited experts from around the world, including Sven Berge (Stridsvagn 103), Philip Lett (M1 Abrams), Israel Tal (Merkava), Hayashi Iwao (Type 90), and Richard Ogorkiewicz (European tanks) for a 40-hour seminar to help guide the concepts of the new tank development. Per prior agreement, all the presentations were recorded, and used for guiding system development of the new tank. Then seven researchers of the Agency for Defense Development (ADD), who were responsible for designing the tank, were sent to the United Kingdom for a year of tank development education.
From November 1998 to December 2002, private companies joined the ADD during exploratory research, and developed core technologies and systems including the tank gun, the electric gun and turret drive system (EGTDS), and the gun autoloader. Other key systems and tests included automatic target detection & tracking, and cognitive identification ability of the combat control system along with its simulator, the semi-active in-arm suspension unit to dramatically increase mobility performance, and the proximity fuse (within 7 meters) for multi-purpose HEAT munition (to shoot down helicopters).
In 2002, Hilmi Özkök, the commander of Turkish Land Forces, visited the research center and witnessed the simulator capabilities and an actual model of the combat control system. Afterward, Turkey continuously sent its dignitaries to closely monitor progress, and it eventually led to cooperation in developing Turkey's Altay.
From January 2003 to 2007, a number of test vehicles were built: two test vehicles, the MTR (Mobility Test Rig) and FTR (Firepower Test Rig), and three PV (Pilot Vehicles) were built to demonstrate technology and performance. MTR and FTR conducted mobility, fire control, combat control, and low temperature operating life tests, while PV1, PV2, and PV3 conducted tests on endurance, developer, operator, and integrated logistics support. The last prototype was unveiled on 2 March 2007 at the proving ground in Changwon, and the development was officially completed after being declared fit for combat by the Defense Acquisition Program Administration (DAPA) in September 2008. The XK2 development project, which began in 1995 and ended in 2008, cost a total of 452.6 billion won spread over 14 years. p. 4
Improvement In 2020, Samyang Comtech, which produces composite armors, began developing an improvement of front armors for K2 export variants, and later it changed to a modification and development project to completely improve the modular armor for export variants organized by the Defense Agency for Technology and Quality (DTaQ) in 2021.
The third mass-produced K2, which began in 2022, included an improved Battlefield Management System with the Korean Variable Message Format (KVMF), and the Korean Commander's Panoramic Sight (KCPS) and Korean Gunner's Primary Sight (KGPS) with improved resolution and daytime automatic target tracking function.
Design Weapon system and munitions
The main gun and its munitions were developed simultaneously. In the early to mid 1990s, South Korea learned internal ballistics, external ballistics, and terminal ballistics for tank guns while license producing the KM256 tank gun; they invented self-sharpening tungsten penetrator for 120 mm APFSDS munitions during the K1A1 program. Using acquired technology, engineers decided to increase firepower with longer gun barrels and enhanced propellants that were NATO compatible.
Compared to the long 44 caliber KM256, the new gun was in length and sent out projectiles at , which was a huge increase from . Since the projectile travels at hypersonic speed or at a muzzle velocity of 1,760 m/s (with K279), it was critical to develop HEAT resistance material and stabilization of the projectile. p. 118 Early designs included an unmanned turret variant, which was scrapped in favor of a manned turret during initial exploratory development. Another plan was to equip Rheinmetall's experimental NPzK-140 140 mm smoothbore gun, but this plan was also scrapped due to issues regarding incomplete combustion of 140 mm munitions.
South Korea originally planned to receive technology transfer of chrome plating on tank guns from Switzerland, only a handful of nations having such technology. However, the plan was changed to domestic development after hearing the refusal from Swiss firm. Engineers first tried chrome plating on the KM256 tank gun used by K1A1, then coincidentally found a classified method while reworking on defect-plated guns.
The Black Panther is armed with a chrome plated CN08 120 mm 55 caliber smoothbore gun developed by the ADD and WIA (now Hyundai WIA), and is capable of hitting a size object at range greater than . p. 14 This is complemented by a home-grown bustle-type autoloader, similar to the Leclerc, which allows the tank to fire up to 10 rounds per minute. The laser barcode identifier of the autoloader recognizes the classification of pre-barcoded ammunition and selects a type of munition for loading based on mission need. The ammunition is loaded in a 16-shell magazine for ready-to-use, and 24 rounds at frontal hull, carrying a total of 40 rounds for its main armament.
The K2's primary anti-tank munitions, developed by the ADD and Poongsan Corporation, are the K279 APFSDS-T, designed with self-sharpening technology for armored targets, and the K280 HEAT-MP-T, a multipurpose chemical energy round with a proximity fuse that explodes within 7 meters from the target, for all types of targets including low-flying helicopters.
Secondary weapons include a 12.7 mm K6 Heavy Machine Gun and a 7.62 mm M60E2-1 coaxial machine gun. The trigger pull of the coaxial machine gun lightened from to for convenience.
Korean Smart Top-Attack Munition (KSTAM)
The Korean Smart Top-Attack Munition (KSTAM) was a research project to develop a fire-and-forget, top-attack anti-tank munition with an effective operating range of . It was developed specifically for use with the K2. Two different concepts were investigated: The KSTAM-I concept developed jointly by Hanwha and Israeli Military Industries and the KSTAM-II concept developed by Doosan in cooperation with Diehl Defence of Germany.
The KSTAM-I projectile had a tandem shaped charge warhead, folding canards and a small rocket motor. The projectile would detect the target using its own seeker and then hit the roof in a pitch-down trajectory similar to that of other top-attack anti-tank guided missiles (ATGMs).
Meanwhile, the KSTAM-II's projectile housed a scaled-down version of Diehl's SMArt 155 sub-munition. Upon reaching its designated target area, the projectile would eject the sub-munition. A parachute would then deploy, giving the sub-munitions on-board millimeter band radar, infrared and radiometer sensors time to seek and acquire stationary or moving targets.