Main battle tank A main battle tank (MBT), also known as a battle tank or universal tank or simply tank,Ogorkiewicz 2018 p222 is a tank that fills the role of armour-protected direct fire and maneuver in many modern armies. Cold War-era development of more po ...

s are often classified as belonging to a particular generation, although the actual definition and membership in these generations are not defined. Soviet military planners organize tanks with the first generation of tanks up to 1950, and four generations of tanks (with the first main battle tank being the third-generation

T-64 The T-64 is a Soviet tank manufactured in Kharkiv, and designed by Alexander Morozov. The tank was introduced in the early 1960s. It was a more advanced counterpart to the T-62: the T-64 served in tank divisions, while the T-62 supported i ...

), while American strategists organize main battle tanks into three generations."The Canadian Directorate of Land Strategic Concept defines three generations of Main Battle Tanks. The first generation of post World War II Main Battle Tanks includes the U.S. M48/M60, the German Leopard 1 and the British Centurion and Chieftain. The second generation includes most of the 120 mm Main Battle Tanks such as the American M1A1, the German Leopard 2 and the British Challenger. As for the third generation Main Battle Tank, they include the latest 'digital' tank such as the French Leclerc and perhaps the American M1A2 and the German Leopard 2A5." The military of the People's Republic of China also recognizes three generations of its own tanks. In 1973, Rolf Hilmes saw three tank generations and three "intermediate generations", which consisted mainly of upgraded vehicles.Hilmes, Rolf (1983). ''Kampfpanzer der Die Entwickelungen der Nachkriegszeit'' (in German). Verlag Soldat und Technik. , p. 7. The first generation of main battle tanks was based on or influenced by designs of

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, most notably the

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

T-34 The T-34 is a Soviet medium tank from World War II. When introduced, its 76.2 mm (3 in) tank gun was more powerful than many of its contemporaries, and its 60-degree sloped armour provided good protection against Anti-tank warfare, ...

.Hilmes 1983, p. 8. The second generation was equipped with

NBC protection Chemical, biological, radiological, and nuclear defense (CBRN defense) or Nuclear, biological, and chemical protection (NBC protection) is a class of protective measures taken in situations where chemical, biological, radiological, or nuclea ...

(only sometimes), night-vision devices, a stabilized main gun and at least a mechanical fire-control system. The third generation is in Western parlance determined by the usage of thermal imagers, digital fire-control systems and special (composite) armour (Soviet doctrine, however, de-emphasizes thermal vision and electronic fire control, preferring large-caliber guns and engines of high power). However, Hilmes acknowledged that tanks cannot be definitively grouped by generations, as each tank-producing country develops and introduces its tanks in tune with its own ideas and needs. He also states that breakdown of postwar tanks by generations is based on timeframe and technical factors, as a basis for further discussion.

First Generation

The first generation of "universal tanks" or "main battle tanks", Those tanks are usually Medium battle tank who turn out to match or outmatch the heavy battle tank in protection and or firepower, leading them to fill multiple roles.

Second Generation

The second generation of MBT marked a turn in the doctrine. With the improvement of the ammunition, mainly the HEAT rounds, the thick protection was rendered useless unless the thickness was increased beyond their mobile capacity. The doctrine was then changed to focus more on the mobility and reduced the protection a lot. This generation was also marked by the utilisation of Night vision, new advanced ammunition such as the APDS, HEAT, HESH and later the APFSDS and also by the NBC capacity.

Third Generation

The third generation of main battle tanks is characterized by

composite armour Composite armour is a type of vehicle armour consisting of layers of different materials such as metals, plastics, ceramics or air. Most composite armours are lighter than their all-metal equivalent, but instead occupy a larger volume for the sa ...

and computer-stabilized fire control systems, which allow firing on the move as well as very high first hit probability on targets multiple kilometres away. Many tanks had smoothbore guns with a calibre around 120mm.

Modernized

An intermediate generation of third-generation tanks modernized with fourth-generation technology.

Fourth Generation

The next generation of main battle tanks in development has autoloaders becoming increasingly more common, even in western designs, with some moving all of the crew into a more heavily protected hull space with unmanned turrets. The tendency to increase calibre sizes continues, with multiple designs having capability for 140mm guns to be fitted. A greater focus on

active protection system An active protection system (APS) is a system designed to actively prevent certain anti-tank weapons from destroying a vehicle. Countermeasures that either conceal the vehicle from or disrupt the guidance of an incoming guided missile threat are ...

s, especially against drones and

loitering munition A loitering munition, also known as a suicide drone, kamikaze drone, or exploding drone, is a weapon with a warhead that is typically designed to Loiter (aeronautics), loiter until a target is designated, then crash into it.AI-assisted systems.

In development

Explanatory notes

* Note to the Pancerni website source: Translation of most important parts of 1st, 2nd, 2.5 and 3rd generation MBTs characteristics: "The first generation MBTs are tanks made immediately after WWII. The second generation MBTs have better sights in comparison to the first generation MBTs. Also second generation MBTs were the first ones to use laser sights and APFSDS rounds. The third generation consists of tanks armed with high caliber and velocity guns like M1A1 Abrams. Third generation tanks also use composite armour as well as armour made out of highly resistant sintered ceramic materials. Third generation tanks also have full stabilization system for the main gun. There are tanks between second and third generations, like Soviet T-72 which has powerful gun which would classify it as a third generation MBT but at the same time the stabilization system is much too primitive for it to a third generation MBT. It also lacks engine power to be a third generation MBT and has ammunition with less quality."

Citations

General and cited references

* * * ">--> {{DEFAULTSORT:List Of Main Battle Tanks By Generation Main battle tanks by period,

Main battle tanks A main battle tank (MBT), also known as a battle tank or universal tank or simply tank,Ogorkiewicz 2018 p222 is a tank that fills the role of armour-protected direct fire and maneuver in many modern armies. Cold War-era development of more po ...