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79-567: List of models and variants of the T-80 main battle tank . Command tanks with additional radio equipment have K added to their designation for komandirskiy ("command"), for example, T-80BK is the command version of the T-80B. Versions with reactive armour have V added, for vzryvnoy ("explosive"), for example T-80BV . Less-expensive versions without missile capability have a figure 1 added, as T-80B1 . The prototype designed by Nikolay Popov

158-410: A battle tank or universal tank , is a tank that fills the role of armour-protected direct fire and maneuver in many modern armies. Cold War -era development of more powerful engines, better suspension systems and lighter composite armour allowed for the design of a tank that had the firepower of a super-heavy tank , the armour protection of a heavy tank , and the mobility of a light tank , in

237-505: A "heavy" tank for assaulting fixed positions, was redesigned during the war with armour and gun upgrades to allow it to take on anti-tank roles as well, and was reclassified as a medium tank. The second half of World War II saw an increased reliance on general-purpose medium tanks, which became the bulk of the tank combat forces. Generally, these designs massed about 25–30 t (25–30 long tons; 28–33 short tons), were armed with cannons around 75 mm (3.0 in), and powered by engines in

316-451: A 2.3 mm thick steel sheet. The container weighs 5.3 kg, and the full complement's weight varies from 1.2 to 2 tons depending on the number of containers used The explosive liner is highly insensitive so that it doesn't explode from bullets or fragmentation. Even tank ammunition cook-off events do not detonate the ERA. This characteristic also prevents chain reactions for Kontakt-1, but it makes

395-453: A 360º view of the tank's surroundings onto crew helmet-mounted displays or other display systems. MBTs, like previous models of tanks, move on continuous tracks , which allow a decent level of mobility over most terrain including sand and mud. They also allow tanks to climb over most obstacles. MBTs can be made water-tight, so they can even dive into shallow water (5 m (16 ft) with snorkel). However, tracks are not as fast as wheels;

474-405: A burden on tactics, training, support and maintenance. The MBT has a positive morale effect on the infantry it accompanies. It also instills fear in the opposing force who can often hear and even feel their arrival. Kontakt-1 Kontakt-1 was the first Soviet ERA system, and its successor is Kontakt-5 , put into the service in 1988. Kontakt-1 is a first-generation ERA , which means it

553-411: A different engine decking. Additional protection is provided by Kontakt-5 explosive reactive armour and Shtora-1 electro-optical APS. There is the same gun 2A46M-1 as on T-80BV but with a new 9K120 Svir system which allows firing 9M119 Svir (AT-11 Sniper) and 9M119 Refleks (AT-11B Sniper) ATGM through the gun barrel. Also the 12.7 mm NSVT heavy machine gun received the ability to be fired from within

632-406: A dual role, able to engage other armoured targets such as tanks and fortifications, and soft targets such as light vehicles and infantry. It is fixed to the turret, along with the loading and fire mechanism. Modern tanks use a sophisticated fire-control system , including rangefinders , computerized fire control, and stabilizers, which are designed to keep the cannon stable and aimed even if the hull

711-401: A high level of self-protection, and which is not designed and equipped primarily to transport combat troops." Originally, most MBTs relied on steel armour to defend against various threats. As newer threats emerged, however, the defensive systems used by MBTs had to evolve to counter them. One of the first new developments was the use of explosive reactive armour (ERA), developed by Israel in

790-605: A human to load. This reduces the silhouette which improves the MBT's target profile. However, with a manual loader, the rounds can be isolated within a blowout chamber, rather than a magazine within the turret, which could improve crew survivability. However, the force of a modern depleted uranium APFSDS round at the muzzle can exceed 6000 kN (a rough estimate, considering a uranium 60 cm/2 cm rod, 19g/cm , @ 1,750 m/s). Composite+reactive armour could withstand this kind of force through its deflection and deformation, but with

869-450: A more powerful GTD-1250D multi-fuel gas turbine engine and the "Brod-M" snorkel. By the end of 2021 up to 300 units produced by overhauling and upgrading old T-80B tanks from storages. The idea was to make it compatible with T-90M tanks (same gun, ammunition, ATGM, ERA etc) in order to put less strain on supply lines. New "Relikt" ERA on turret and hull (front and sides), increased protection against land mines. Older tracks were replaced with

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948-678: A new universal tank was rendered unnecessary. The Centurion, entering service just as World War II finished, was a multi-role tank that subsequently formed the main armoured element of the British Army of the Rhine , the armed forces of the British Empire and Commonwealth forces, and subsequently many other nations through exports, whose cost was met largely by the US. The introduction of the 84 mm (3.3 in) 20-pounder gun in 1948 gave

1027-589: A package with the weight of a medium tank . The first designated MBT was the British Chieftain tank , which during its development in the 1950s was re-designed as an MBT. Throughout the 1960s and 1970s, the MBT replaced almost all other types of tanks, leaving only some specialist roles to be filled by lighter designs or other types of armoured fighting vehicles . Main battle tanks are a key component of modern armies. Modern MBTs seldom operate alone, as they are organized into armoured units that include

1106-535: A second hit in the same area, an armour breach is inevitable. As such, the speed of follow up shots is crucial within tank to tank combat. As secondary weapons, an MBT usually uses between two and four machine guns to engage infantry and light vehicles. Many MBTs mount one heavy caliber anti-aircraft machine gun (AAMG), usually of .50 caliber (like the M2 Browning or DShK ), which can be used against helicopters and low flying aircraft. However, their effectiveness

1185-619: A target and thereby enhance the first-round hit probability. The United States's experience in the Vietnam War contributed to the idea among army leadership that the role of the main battle tank could be fulfilled by attack helicopters . During the Vietnam War, helicopters and missiles competed with MBTs for research money. Though the Persian Gulf War reaffirmed the role of main battle tanks, MBTs were outperformed by

1264-458: A trend towards heavier weight and greater firepower during World War II; speed was not a substitute for armour and firepower. An increasing variety of anti-tank weapons and the perceived threat of a nuclear war prioritized the need for additional armour. The additional armour prompted the design of even more powerful guns. The main battle tank thus took on the role the British had once called

1343-534: A world of shaped charge weapons, and new designs rapidly emerged from most armed forces. The Quebec conference in 1957 between the US, UK and Canada identified the MBT as the route for development rather than separate medium and heavy tanks. The concept of the medium tank gradually evolved into the MBT in the 1960s, as it was realized that medium tanks could carry guns (such as the American 90 mm (3.5 in), Soviet 100 mm (3.9 in), and especially

1422-426: Is a new gun 2A46M-1 with 9K112 Kobra system capable of firing improved 9M112M Kobra ATGM through gun barrel. ( "U" for uluchsheniye, meaning "improvement") A further development of T-80A. It was produced as a new vehicle, nothing to do with old tanks from storage. This version has a new 1,100 hp (820 kW) GTD-1000F multi-fuel gas turbine engine and new turret with improved composite armor. T-80U also received

1501-435: Is considered one of the fastest MBTs in existence. The MBT is often cumbersome in traffic and frequently obstructs the normal flow of traffic. The tracks can damage some roads after repeated use. Many structures like bridges do not have the load capacity to support an MBT. In the fast pace of combat, it is often impossible to test the sturdiness of these structures. Though appreciated for its excellent off-road characteristics,

1580-429: Is enhanced by suspending the driver's seat from the hull roof. Two clusters of four 81 mm 902B Tucha electrically operated smoke dischargers are mounted on either side of the turret. Early production version of T-80U still used Kontakt-1 ERA. A special camouflage paint distorts the tank's appearance in the visible and IR wavebands. GTA-18A Auxiliary Power Unit is used when the engine is off. Late production version had

1659-456: Is limited in comparison to dedicated anti-aircraft artillery. The tank's machine guns are usually equipped with between 500 and 3,000 rounds each. Performing situational awareness and communicating is one of four primary MBT functions. For situational awareness, the crew can use a circular review system combining augmented reality and artificial Intelligence technologies. These systems use several externally mounted video sensors to transfer

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1738-487: Is low at a straight angle and increases significantly as the angle changes, explaining why Soviet tanks have a prominent wedged ERA configurations on their turrets. Kontakt-1 is effective only against regular non- tandem shaped charges and has no effect on kinetic energy (KE) penetrators . According to the manufacturer, Kontakt-1 generally reduces penetration by 86% for Konkurs -type ATGMs, by 92% for rocket grenades, and by 52% for tank HEAT rounds. A common misconception

1817-474: Is performed in high-intensity conflicts where reconnaissance by light vehicles would be insufficient due to the necessity to "fight" for information. In asymmetric warfare, main battle tanks are deployed in small, highly concentrated units. MBTs fire only at targets at close range and instead rely on external support such as unmanned aircraft for long range combat. Main battle tanks have significantly varied characteristics. Procuring too many varieties can place

1896-524: Is reserved for ammunition. External space enhances independence of logistics and can accommodate extra fuel and some personal equipment of the crew. The Israeli Merkava can accommodate crew members displaced from a destroyed vehicle in its ammunition compartment. Emphasis is placed on selecting and training main battle tank crew members. The crew must perform their tasks faultlessly and harmoniously so commanders select teams taking into consideration personalities and talents. The main battle tank fulfills

1975-527: Is that Kontakt-1 was inspired by the Israeli Blazer , which proved efficient during the 1982 Lebanon War . According to the story, the USSR received an Israeli Magach tank following the war and managed to design its own ERA soon afterwards. However, this account is not accurate. The USSR started researching ERA in the 1950s, and the first tests were conducted in the early 1960s. Interestingly, one of

2054-574: Is turning or shaking, making it easier for the operators to fire on the move and/or against moving targets. Gun-missile systems are complicated and have been particularly unsatisfactory to the United States who abandoned gun-missile projects such as the M60A2 and MBT-70 , but have been diligently developed by the Soviet Union, who even retrofitted them to T-55 tanks, in an effort to double

2133-422: Is used as appliqué ‘bricks’. Its second-generation successors, such as Kontakt-5 and Relikt, have heavier built-in discharging plates. The ERA system consists of hundreds of standalone containers often referred to as "bricks." Each container includes two 252×130×10 mm ERA panels positioned at an angle relative to each other. A single panel is 5.4 mm thick with a 260g explosive (85% hexogen ) liner, surrounded by

2212-487: The Cromwell tank , combined with efficiency savings elsewhere in the design, almost doubled the horsepower for cruiser tanks. This led to speculation of a "Universal Tank", able to take on the roles of both a cruiser and an infantry tank by combining heavy armour and manoeuvrability. Field Marshal Bernard Montgomery is acknowledged as the main advocate of the British universal tank concept as early as 1943, according to

2291-655: The Second Battle of Fallujah the United States Marines brought in two extra companies of M1s. Britain deployed its Challenger 2 tanks to support its operations in southern Iraq. Advanced armour has reduced crew fatalities but has not improved vehicle survivability. Small unmanned turrets on top of the cupolas called remote controlled weapon stations armed with machine guns or mortars provide improved defence and enhance crew survivability. Experimental tanks with unmanned turrets locate crew members in

2370-532: The T-72 . The United States Army used 1,100 M1 Abrams in the course of the Iraq War . They proved to have an unexpectedly high vulnerability to improvised explosive devices . A relatively new type of remotely detonated mine, the explosively formed penetrator , was used with some success against American armoured vehicles. However, with upgrades to their rear armour, M1s proved to be valuable in urban combat; at

2449-543: The attack helicopter . Other strategists considered that the MBT was entirely obsolete in light of the efficacy and speed with which coalition forces neutralized Iraqi armour. In asymmetric warfare , threats such as improvised explosive devices and mines have proven effective against MBTs. In response, nations that face asymmetric warfare, such as Israel, are reducing the size of their tank fleet and procuring more advanced models. Conversely, some insurgent groups like Hezbollah themselves operate main battle tanks, such as

T-80 models - Misplaced Pages Continue

2528-586: The "universal tank", exemplified by the Centurion, filling almost all battlefield roles. Typical main battle tanks were as well armed as any other vehicle on the battlefield, highly mobile, and well armoured. Yet they were cheap enough to be built in large numbers. The first Soviet main battle tank was the T-64A (the T-54/55 and T-62 were considered "medium" tanks) and the first American nomenclature-designated MBT

2607-609: The 400–500 hp (300–370 kW) range. Notable examples include the Soviet T-34 (the most-produced tank at that time) and the US M4 Sherman . Late war tank development placed increased emphasis on armour, armament, and anti-tank capabilities for medium tanks: Britain had continued on the path of parallel development of cruiser tanks and infantry tanks. Development of the Rolls-Royce Meteor engine for

2686-627: The British L7 105 mm (4.1 in) ) that could penetrate any practical level of armour then existing at long range. Also, the heaviest tanks were unable to use most existing bridges. The World War II concept of heavy tanks , armed with the most powerful guns and heaviest armour, became obsolete because the large tanks were too expensive and just as vulnerable to damage by mines, bombs, rockets, and artillery. Likewise, World War II had shown that lightly armed and armoured tanks were of limited value in most roles. Even reconnaissance vehicles had shown

2765-546: The French Leclerc , or the Russian/Ukrainian T-64 , T-72 , T-80 , T-84 , T-90 , and T-14 and, for this reason, the crew can be reduced to 3 members. MBTs with an autoloader require one less crew member and the autoloader requires less space than its human counterpart, allowing for a reduction in turret size. Further, an autoloader can be designed to handle rounds which would be too difficult for

2844-551: The French Renault FT ; these were light tanks or tankettes . Many late-war and inter-war tank designs diverged from these according to new, and mostly untried, concepts for future tank roles and tactics. Each nation tended to create its own list of tank classes with different intended roles, such as "cavalry tanks", "breakthrough tanks", "fast tanks", and "assault tanks". The British maintained cruiser tanks that in order to achieve high speed and hence manoeuvrability in

2923-422: The MBT can become immobilized in muddy conditions. The high cost of MBTs can be attributed in part to the high-performance engine-transmission system and to the fire control system. Also, propulsion systems are not produced in high enough quantities to take advantage of economies of scale . Crew fatigue limits the operational range of MBTs in combat. Reducing the crew to three and relocating all crewmembers from

3002-413: The Soviet Union's fighting capability. The Soviet Union made novel advancements to the weapon systems including mechanical autoloaders and anti-tank guided missiles . Autoloaders were introduced to replace the human loader, permitting the turret to be reduced in size, making the tank smaller and less visible as a target, while missile systems were added to extend the range at which a vehicle could engage

3081-574: The T-64 and T-72, and other features unique to itself. In general, the offensive capabilities of the T-80 are similar to the T-64A, but it is faster thanks to the GTD-1000T 1,000 hp (746 kW) multi-fuel gas turbine engine. Visual keys are large, die-cast, irregularly spaced, ribbed, rubber-tired road wheels with three support rollers, a self-entrenching blade on the lower glacis, a Luna searchlight in

3160-411: The attack carried less armour, and infantry tanks which operating at infantryman pace could carry more armour. After years of isolated and divergent development, the various interwar tank concepts were finally tested with the start of World War II . In the chaos of blitzkrieg , tanks designed for a single role often found themselves forced into battlefield situations they were ill-suited for. During

3239-444: The detonation of ERA blocks creates a hazard to any supporting infantry near the tank. Despite this drawback, it is still employed on many Russian MBTs, the latest generation Kontakt-5 being capable of defeating both high-explosive anti-tank (HEAT) and kinetic energy penetrator threats. The Soviets also developed Active Protection Systems (APS) designed to more actively neutralize hostile projectiles before they could even strike

T-80 models - Misplaced Pages Continue

3318-520: The early 1980s to defend against the shaped-charge warheads of modern anti-tank guided missiles and other such high-explosive anti-tank (HEAT) projectiles. This technology was subsequently adopted and expanded upon by the United States and the Soviet Union. MBT armour is concentrated at the front of the tank, where it is layered up to 33 centimetres (13 in) thick. Missiles are cheap and cost-effective anti-tank weapons. ERA can be quickly added to vehicles to increase their survivability. However,

3397-690: The early 1990s and 2000s; surviving numerous impacts from 1950s, 1960s, and 1970s era rocket-propelled grenades with negligible damage. It is much less efficient against later models of RPGs. For example, the RPG-29 from the 1980s is able to penetrate the frontal hull armour of the Challenger 2. Main battle tanks are equipped with a main gun and at least one machine gun . MBT main guns are generally between 100 mm (3.9 in) and 125 mm (4.9 in) caliber, and can fire both anti-armour and, more recently, anti-personnel rounds. The cannon serves

3476-400: The effect of protecting the vehicle's occupants from nuclear explosion radiation). By the late 1970s, MBTs were manufactured by China, France, West Germany, Britain, India, Italy, Japan, the Soviet Union, Sweden, Switzerland, and the United States. The Soviet Union's war doctrine depended heavily on the main battle tank. Any weapon advancement making the MBT obsolete could have devastated

3555-988: The effective range of the vehicle's fire. The MBT's role could be compromised because of the increasing distances involved and the increased reliance on indirect fire . The tank gun is still useful in urban combat for precisely delivering powerful fire while minimizing collateral damage. High-explosive anti-tank (HEAT), and some form of high velocity kinetic energy penetrator , such as armour-piercing fin-stabilized discarding sabot (APFSDS) rounds are carried for anti-armour purposes. Anti-personnel rounds such as high explosive or high explosive fragmentation have dual purpose. Less common rounds are Beehive anti-personnel rounds , and high-explosive squash head (HESH) rounds used for both anti-armour and bunker busting. Usually, an MBT carries 30–50 rounds of ammunition for its main tank gun , usually split between HE, HEAT, and KEP rounds. Some MBTs may also carry smoke or white phosphorus rounds. Some MBTs are equipped with an autoloader , such as

3634-500: The employees involved in the process was named Bleyzer G.A. (Russian: Блейзер Г. А.), who later moved to Israel. His last name sounds similar to the Israeli Blazer ERA, but there is no evidence that this is anything more than a notable coincidence. NII Stali was working on an integrated KDZ-68 ERA since the 1960s. It was highly effective but was deemed too heavy to be mounted. At the time, the armor of T-64 and T-72 tanks

3713-419: The era. Later came British Chobham armour . This composite armour used layers of ceramics and other materials to help attenuate the effects of HEAT munitions. Another threat came by way of the widespread use of helicopters in battle. Before the advent of helicopters, armour was heavily concentrated to the front of the tank. This new threat caused designs to distribute armour on all sides of the tank (also having

3792-624: The first Kontakt-1-equipped T-64BV was put into service. It is likely that the demonstration of Blazer effectiveness and the capture of the Israeli tank broke the prejudices of Soviet generals against carrying high explosives on the armor and opened the door for Kontakt-1 adoption. All the countries which possess T-55AMV (see T-54/55 operators ), T-62MV (see T-62 operators ), T-64BV (see T-64 operators ), T-72AV, T-72B, T-72AMT  [ uk ] , T-72EA, T-72UA1, T-72MS (see T-72 operators ), T-80BV (see T-80 operators ) and some other tanks, are

3871-554: The first three road wheels are armored and are provided with lifting handles. There are also rubber elements fitted beneath the front glacis which provide additional protection against mines with tilt-rod fuses and HEAT warheads. The forward skirt elements are armored and a radiation absorption liner coat is mounted on the inside and on the outside of armour. The turret roof between the commander's and gunner's hatches has been provided with additional protection against attack from above. Driver's protection, particularly against mine explosions,

3950-467: The frontal arc, it does not provide any added protection against APDS or APFSDS. Vehicles which were built first for sometime lacked the ERA because of supply problems. Some T-80BV tanks have been equipped with dust flap under glacis plate and some of them were equipped with single line of ERA along top of hull side. A late production version had a new turret similar to the T-80U but with Kontakt-1 ERA. There

4029-465: The heavily armoured hull, improving survivability and reducing the vehicle's profile. Technology is reducing the weight and size of the modern MBT. A British military document from 2001 indicated that the British Army would not procure a replacement for the Challenger 2 because of a lack of conventional warfare threats in the foreseeable future. The obsolescence of the tank has been asserted, but

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4108-617: The history of the late 20th and early 21st century suggested that MBTs were still necessary. During the Russian invasion of Ukraine , Western and Russian MBTs saw large-scale combat in large numbers. The Organization for Security and Co-operation in Europe defines a main battle tank as "a self-propelled armoured fighting vehicle, capable of heavy firepower, primarily of a high muzzle velocity direct fire main gun necessary to engage armoured and other targets, with high cross-country mobility, with

4187-568: The limits of mechanical technology. This limited the specific battlefield capabilities any one tank design could be expected to fulfill. A design might have good speed, armour, or firepower, but not all three together. Facing the deadlock of trench warfare , the first tank designs focused on crossing wide trenches, requiring very long and large vehicles, such as the British Mark I tank and successors; these became known as heavy tanks . Tanks that focused on other combat roles were smaller, like

4266-490: The main armament back to the either side of the turret and positioned between the turret side and the ERA panels. On the turret of the T-80BV, the panels are joined to form a shallow chevron shape. ERA is also fitted to the forward part of the turret roof to provide protection against attacks from above. While the ERA provides a high degree of protection against ATGM of its time which relied on a HEAT warhead to penetrate armor over

4345-439: The maximum speed of a tank is about 65 km/h (40 mph) . The extreme weight of vehicles of this type 40–70 t (39–69 long tons; 44–77 short tons) also limits their speed. They are usually equipped with a 1,200–1,500 hp (890–1,120 kW) engine (more than 25,000 cc (1,526 cu in)), with an operational range near 500 km (310 mi). The German Army has prioritized mobility in its Leopard 2 which

4424-638: The new universal, twin-pin design. New 2A46M-5 125mm gun with new anti-tank ammunition Svinets-1 (tungsten) and Svinets-2 (depleted uranium). 9K119M Refleks-M system is used to launch 9M119M Invar (also called Refleks-M) ATGM through gun barrel. 1A45T improved "Irtysh" fire control system (from T-90A) with new Sosna-U gunner`s sight. New panoramic sight for the commander. New radio communication. Upgraded gas turbine engine. Retained old turret, manual transmission, no APS, no GLONASS navigation. Optional "hard kill" APS Arena-M. Currently being delivered. Main battle tank A main battle tank ( MBT ), also known as

4503-518: The number of aircraft available. Military planners anticipate that the airlift capability for MBTs will not improve in the future. To date, no helicopter has the capability to lift MBTs. Rail and road are heavily used to move MBTs nearer to the battle, ready to fight in prime condition. Where well maintained roads allow it, wheeled tank transporters can be used. The task of resupply is usually accomplished with large trucks. Main battle tanks have internal and external storage space. Internal space

4582-682: The operators of Kontakt-1. Due to the modularity and installation simplicity, it's a common practice to put it on different vehicles in the field or factory conditions to increase protection. During the 2022 Russian invasion of Ukraine , both sides use Kontakt-1 to provide additional protection for different vehicles. Even some production vehicles equipped with more advanced Kontakt-5 / Relikt ERA, such as T-72B3 , receive additional Kontakt-1 at factories. In 2018 Ukrainian UAM  [ uk ] company claimed to produce Kontakt-1 and Kontakt-5 elements named 4S20U and 4S22U respectively, with brand-new explosives. They also claimed that Kontakt-1

4661-505: The production switched to the T-80B. Some T-80s were later upgraded to B level. This first major redesign features a modified turret with new composite K ceramic armor providing better protection against APFSDS kinetic energy penetrators at the front of the hull and turret. The protection level of the turret increased from 410 mm of steel to 500 mm of steel. It also includes 1A33 fire control system, 9K112-2 system which allows firing 9M112 "Kobra" (NATO code: AT-8 Songster) ATGM using

4740-479: The rest of its armament, can also intercept aircraft and missiles. MBTs can also be protected from radar detection by incorporating stealth technology . The T-14 Armata has a turret designed to be harder to detect with radars and thermal sights. Advanced camouflage, like the Russian Nakidka , will also reduce the radar and thermal signatures of a MBT. Other defensive developments focused on improving

4819-476: The role the British had once called the "universal tank", filling almost all battlefield roles. They were originally designed in the Cold War to combat other MBTs. The modern light tank supplements the MBT in expeditionary roles and situations where all major threats have been neutralized and excess weight in armour and armament would only hinder mobility and cost more money to operate. Reconnaissance by MBTs

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4898-422: The same position as the T-64. Significant differences are a coincidence rangefinder, and probable enhanced armor on the glacis (an upper glacis of steel layers enclosing fiberglass layers and a cast steel turret enclosing nonmetallic materials). Unlike the later models, the early T-80 had V-shaped splash plate on glacis plate. Due to its armour being obsolete, only a few hundred were built between 1976 and 1978 before

4977-595: The strength of the armour itself; one of the notable advancements coming from the British with the development of Chobham armour in the 1970s. It was first employed on the American M1 Abrams and later the British Challenger 1 . Chobham armour uses a lattice of composite and ceramic materials along with metal alloys to defeat incoming threats, and proved highly effective in the conflicts in Iraq in

5056-408: The support of infantry , who may accompany the tanks in infantry fighting vehicles . They are also often supported by surveillance or ground-attack aircraft . The average weight of MBTs varies from country to country. The average weight of Western MBTs is usually greater than that of Russian or Chinese MBTs. During World War I , combining tracks, armour, and guns into a functional vehicle pushed

5135-430: The system ineffective against kinetic energy penetrators . However, due to the fragility of the blocks, they can be easily destroyed by a hit: a HEAT round can destroy up to 85% of all the ERA from the tank's front. When a shaped charge's jet stream hits the explosive liner, it detonates, throwing the metal plates at the stream obliquely. As a result, the jet is deformed and defocused, losing its energy. Its efficiency

5214-437: The tank a significant advantage over other tanks of the era, paving the way for a new tank classification, the main battle tank, which gradually superseded previous weight and armament classes. A surplus of effective WWII-era designs in other forces, notably the US and the Soviet Union, led to slower introductions of similar designs on their part. By the early 1950s, these designs were clearly no longer competitive, especially in

5293-432: The tank's barrel. The missile control box is mounted in front of the cupola and has angled support. The ATGM may be launched while moving slowly and can be auto-loaded with the two-halves mated during ramming but the stub charge is manually loaded. Unlike T-80, T-80B does not have a splash plate on glacis plate. Retained gun 2A46-2 from basic T-80. A further development of T-80B. It was developed in late 1970s and first model

5372-670: The tank, namely the Shtora and Arena systems. The United States has also adopted similar technologies in the form of the Missile Countermeasure Device and as part of the Tank Urban Survival Kit used on M1 Abrams tanks serving in Iraq. The latest Russian MBT, according to many forum members the T-14 Armata , incorporates an AESA radar as part of its Afghanit APS and in conjunction with

5451-409: The turret to the hull could provide time to sleep for one off-shift crewmember located in the rear of the hull. In this scenario, crewmembers would rotate shifts regularly and all would require cross-training on all vehicle job functions. Cargo aircraft are instrumental to the timely deployment of MBTs. The absence of sufficient numbers of strategic airlift assets can limit the rate of MBT deployments to

5530-423: The turret with a use of a remote-control which work in a similar manner to the one in T-64. New fire control system 1A45 Irtysh with 1V528-1 Ballistic Computer. Buran-PA night sight for gunner. PNK-4S (Agat) day/night sight for commander. Infra-red searchlight "Luna" mounted on the commander's cupola. Like all of the previous T-80 models, the T-80U has full length rubber side skirts protecting the sides but those above

5609-400: The war, limited-role tank designs tended to be replaced by more general-purpose designs, enabled by improving tank technology. Tank classes became mostly based on weight (and the corresponding transport and logistical needs). This led to new definitions of heavy and light tank classes, with medium tanks covering the balance of those between. The German Panzer IV tank, designed before the war as

5688-525: The writings of Giffard Le Quesne Martel , but little progress was made beyond development of the basic Cromwell cruiser tank that eventually led to the Centurion . The Centurion, at the time designated "heavy cruiser" and later "medium gun tank" was designed for mobility and firepower at the expense of armour , but more engine power permitted more armour protection, so the Centurion could also operate as an infantry tank , doing so well that development of

5767-471: Was actually being put into the service. Since May 2023 Ukraine has been receiving a Kontakt-1 variant produced by Czech STV Group. Polish and Czech T-72M1 and T-72M1R and Slovenian M-55S are equipped with Kontakt-1 in Ukraine. During the delivery of Western tanks to Ukraine, Ukrainian armor experts speculated that Kontakt-1 could be a viable solution to complement weaker armor of some tanks such as

5846-547: Was constructed in 1969 by Leningrad Kirov Plant (LKZ) and designated Object 219 SP1 . It was essentially the T-64T powered by a GTD-1000T multi-fuel gas turbine engine producing up to 1,000 hp (746 kW). During the trials it became clear that the increased weight and dynamic characteristics required a complete redesign of the vehicle's suspension. The second prototype, designated Object 219 SP2 , received bigger drive sprockets and return rollers. The number of road wheels

5925-531: Was increased considerably when comparing it to the one of T-80B (T-80B – 38 rounds, T-80A – 45 rounds). It has some features of the future T-80U including the new turret with stronger armour and equipped with a new fire control system with the 1G46 gunner's sight. However, because of all those improvements T-80A is 2.8 tonnes heavier than the T-80B. It never left the prototype stage and was further developed as T-80U. T-80B with Kontakt-1 explosive reactive armour. The smoke grenade launchers were moved from either side of

6004-399: Was increased from five to six. The construction of the turret was altered to use the same compartment, 125 mm 2A46 tank gun , autoloader and placement of ammunition as the T-64A. Some additional equipment was borrowed from the T-64A. The LKZ plant built a series of prototypes based on Object 219 SP2. In 1976 it became the T-80. First production model. The T-80 has some features of both

6083-469: Was produced in 1982. It was an attempt to provide the T-80B tank with an improved armour and firepower. It uses 1,200 hp (895 kW) GTD-1000M gas turbine engine. It has the 9K119 system which allows it to fire 9M119M Invar (AT-11B Sniper) ATGM using the tank's barrel. It also had several pintle mounts for the NSVT heavy machine gun and other improvements. The ammo load for 125 mm smoothbore tank gun

6162-422: Was strong enough, and the priority was to reduce the weight of the tanks. Thus, for various reasons, including an unverified claim that contemporary Soviet Chief marshal of the armored troops Hamazasp Babadzhanian was totally against explosive armor, it was abandoned. In the late 1970s, Soviet armor was not strong enough against new Western guns and ammunition, so in 1982, a new ERA system was tested, and in 1985,

6241-577: Was the M60 tank . Anti-tank weapons rapidly outpaced armour developments. By the 1960s, anti-tank rounds could penetrate a meter of steel so as to make the application of traditional rolled homogeneous armour unpragmatic. The first solution to this problem was the composite armor of Soviet T-64 tank, which included steel-glass-reinforced textolite-steel sandwich in heavily sloped glacis plates, and steel turret with aluminum inserts, which helped to resist both high-explosive anti-tank (HEAT) and APDS shells of

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