T-55
From Wikipedia, the free encyclopedia
T-54/55 | |
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![]() Polish T-55A, Poznań Citadel Museum of Arms (front, rear, detail) |
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Type | Main battle tank |
Place of origin | Soviet Union |
Specifications | |
Weight | 36.6 tonnes |
Length | 6.45 m |
Width | 3.27 m |
Height | 2.40 m |
Crew | 4 (commander, gunner, loader, driver) |
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Armour | 200 mm turret, 120 mm hull |
Primary armament |
100 mm D-10T series rifled gun |
Secondary armament |
7.62 mm SGMT coaxial machine gun, DShK 12.7 mm antiaircraft machine gun, 7.62 mm hull machine gun (T-54) |
Engine | Model V-54 or V-55 12-cyl. 38.88 liter water-cooled diesel 520 hp (390 kW) |
Power/weight | 14 hp/tonne |
Suspension | torsion bar |
Operational range |
400/500 km, with drop tanks 600 km |
Speed | 48/50 km/h |
The T-54 and T-55 tank series was the Soviet Union's front-line main battle tank from 1947 until 1962, and remains in service throughout the world to this day, especially by former client states of the Soviet Union. It is the most-produced tank series in history, with over 95,000 produced in all.
The T-54 and T-55 tanks are very similar and difficult to distinguish visually. Many T-54s were updated to T-55 standards. Soviet tanks were factory-overhauled every 7,000 km, and often given minor technology updates. Many states have added or modified tank equipment (India affixed fake fume extractors to its T-54s and T-55s, so that Indian gunners wouldn't confuse them with Pakistani Type 59s).[citation needed]
The T-54 can be distinguished by a dome-shaped ventilator on the turret front-right, and has a SGMT 7.62 mm machine gun mounted to fire through a tiny hole in the centre of the hull front, operated by the driver. Early T-54s lacked a gun fume extractor, had an undercut at the turret rear, and a distinctive "pig-snout" gun mantle. The T-55's newer turret has large D-shaped roof panels, visible from above. It also displays a pronounced "gap" between its first and second road wheels.
Contents |
[edit] Production history
The Soviet T-34 medium tank of 1940 was the tank with the best balance of firepower, protection, and mobility when it was first built. With evolutionary development, it continued to perform well throughout the Second World War, but the wartime requirement of producing tanks at an incredible rate had prevented its designers from incorporating the latest technologies. Finally, in 1943, the Morozov Design Bureau resurrected the pre-war T-34M development project and created the T-44 medium tank. Thanks to a space-efficient torsion-bar suspension, a novel transverse engine mount, and the removal of the hull machine-gunner's crew position, the T-44 performed at least as well as the T-34, with substantially better armour. But a larger gun with better armour penetration and firing heavier high-explosive ammunition was desirable. The T-44's turret, inspired by the T-34-85's, was still incapable of mounting more powerful armament than its predecessor's 85 mm tank gun, which was considerably weaker than the 88mm and long 75mm guns on newer German tanks. Only about 1,823 T-44s were ever built, while Morozov proceeded with further development.
A series of experiments on the T-44 hull led to the T-54 tank. It mounted the same 100 mm D-10 tank gun[1] used in the World War II SU-100 tank destroyer (modified for the tank's fighting compartment as the D-10T, but with identical performance). The gun was housed in a new turret with bigger turret ring and very well protected mantlet, with 200 mm of armour on the front. The new V-54 engine had a two-stage reduction gearbox, which made steering easier. The T-54 replaced the T-44 in production from 1947 at Uralvagonzavod (UVZ) in Nizhny Tagil, and from 1948 at Kharkov Diesel Factory No. 75 (KhPZ).
Though based on design and prototype work begun in 1943 and entering production just one year after the war ended, the T-54 had superior armor protection to many late-war German tanks. Its 100mm L53 gun produced less effective armor penetration than the 88mm L 71 gun on the Tiger II but was superior to the 88mm L56 gun on the Tiger I, and comparable to the 75mm L70 gun of the Panther medium tank. Due to its revolutionary design, this performance was achieved while weighing only about four-fifths of the weight of the panther, two-thirds the weight of the Tiger I, and just more than half the weight of the Tiger II. It's light weight, powerful engine, and robust suspension gave it excellent cross-country mobility.
The T-55 was also significantly superior to the IS-2 Heavy Tank in all respects, and compared favorably to the IS-3, with somewhat thinner frontal turret armor (200mm vs. 250) but a better antitank gun and better mobility. With its potent combination of armor, firepower and mobility, heavy tanks fell from favor. Only 350 IS-3s were produced and future Soviet heavy tank designs would never progress beyond prototypes. The old model of highly mobile medium tanks and heavily armored heavy tanks was replaced with a new paradigm: The Main Battle Tank. Parallel developments in the west would produce similar results.
During the 1950s, the T-55 remained a significantly smaller and lighter tank than its NATO contemporaries, the U.S. Patton and British Centurion, with comparatively excellent firepower and protection. Its gun slowly fell behind western developments though, and soon its kinetic-energy penetrator ceased to be competitive. Until the 1960s, however, the T-54 was able to rely on HEAT shaped-charge ammunition to engage tanks despite the relatively inaccuracy of this ammunition at long ranges due to the rounds' low velocity and the tank's simple fire-control system. The Soviets considered this acceptable for a potential European conflict, until the development of Chobham armor began to seriously reduce the effectiveness of HEAT warheads.[1]
Even before this, Morozov became interested in proceeding with a new generation of main battle tanks, and after moving back from the Urals to Ukraine (the design bureau and factory had been evacuated from Kharkov (Kharkiv, Ukraine) to Nizhny Tagil during the German advance in 1942) he began development which would lead to the T-64. The Kartsev design bureau at UVZ took over responsibility for the T-54, starting with the T-54A, which added single-plane gun stabilization and night-driving equipment.
The T-54B started production in 1957, with a new D-10T2S gun and 2-plane stabilizer. Active infrared "night-fighting" equipment for the gunner and driver were installed on new tanks and retrofitted to older ones, starting in 1959. In addition, modern APFSDS ammunition was developed, dramatically enhancing the penetrative performance of the gun to keep it competitive with NATO armor developments.
In 1958, The T-54 was redesigned for the nuclear battlefield as the T-55, with a thicker turret casting, more powerful engine, and very basic NBC protection (protecting against the deadly blast overpressure of a nuclear explosion, but not against radiation or fallout). The roof-top antiaircraft machine gun was dropped, because it was deemed worthless against high-performance jets (it would be reintroduced in the 1970s to deal with helicopters). The T-55 also had the T-54B's improved two-plane gun stabilization and added "night-fighting" equipment.
T-54 and T-55 tanks continued to be upgraded, refitted, and modernized into the 1990s. Advances in armour-piercing and HEAT ammunition would improve the gun's antitank capabilities in the 1960s and 1980s.
Tens of thousands of T-55 tanks were manufactured in the Soviet Union between 1958 and 1979. The tank was also produced in Poland, Czechoslovakia, and in China (as the Type 59, a copy of the T-54A), and Romania. In China, it was further developed as the Type 69, which is still manufactured for export today, and the Type 79, a version equipped with a 105 mm main gun.
A wide array of upgrades in different price ranges are provided by many manufacturers in different countries, intended to bring the T-54/55 up to the capabilities of newer tanks such as T-72s, at a lower cost. Upgrades include new engines, explosive reactive armour, new main armament such as 120 mm or 125 mm guns, active protection systems, and fire control systems with range-finders or thermal sights. These improvements make it a potent main battle tank (MBT) for the low-end budget, even to this day.
During the 1990s–2000s, hundreds of refurbished and upgraded T-55s were resold by Belarus, Bulgaria, the Czech Republic, Israel, Slovakia, Poland, Ukraine ,Angola, Azerbaijan, Cambodia, Ethiopia, Georgia, Latvia, Macedonia, Sri Lanka, Sudan, Uganda, Uruguay, and Yemen.[2]
The T-54/55 is considered to be the single most widely produced tank in the world, and the most common one in service today.
[edit] Service history

The T-54/55 and the T-62 were the two most common tanks in Soviet inventory—in the mid-1970s the two types together comprised approximately 85% of the Soviet Army's tanks. The T-62 and T-55 are now mostly in reserve status; Russian active-duty units mainly use the T-80 and T-72, with a smaller number of T-90 tanks in service (the T-90 in a few units only).
T-54 tanks served in the 1956 invasion of Hungary, and a few were knocked out by Molotov cocktails and Hungarian antitank guns.[3]
During the Vietnam war the T-54 was used by North Vietnam where its light armor proved to be vulnerable to both M72 LAW infantry anti-tank rockets as well as South Vietnamese M41 Walker Bulldog light tanks and M48 Patton medium tanks. [4]. South Vietnamese M48 Pattons (ex-worn out US M48s) were able to kill T-54's at 2,500 - 3,000m. In many cases without losses to their own. [5] The South Vietnamese M41 Walker Bulldogs, despite being lightly armored, also proved to be very effective against the T-54. Its 76mm gun proved to be very capable of penetrating the T-54s armor. [6].
During the 1967 Six-Day War, U.S. M48 Patton tanks, Centurion tanks and T-55s faced each other. Centurion and M48 Pattons were more then capable of dealing with the T-54, outperforming the T-54/T-55 series. [7].
By the 1973 Yom Kippur War, the T-54A and T-55's armament was inferior to the 105mm Royal Ordnance L7 gun mounted in Israeli Centurion Mk V and M60A1 tanks and its gun was unable to penetrate the armor of these tanks. In fact, even the newer T-62 (a modernised T-55) was outperformed. Most Israeli tank losses were due to anti-tank missiles. [8]
Israel captured over a thousand T-55s from Syria and Egypt in 1967 and 1973, and kept many of them in service. They were upgraded with a 105 mm NATO-standard L7 or M68 main gun replacing the old Soviet 100 mm D-10, and a General Motors diesel replacing the original Soviet diesel engine. The Israelis designated these Tiran-5 medium tanks, and they were used by reserve units until the early 1990s. Most of them were then sold to assorted Third World countries, some of them in Latin America, and the rest were heavily modified, converted into heavy armoured personnel carriers designated the IDF Achzarit.
China sold thousands of Type 69 tanks to both Iran and Iraq during their war in the 1980s. Some saw action in the 1991 Gulf War.
Being the most numerous in former Yugoslavia's military (JNA) inventory, it was the mainstray of armoured combat units during the Yugoslav Wars where it proved vulnerable to infantry equipped with anti-tank rockets, missemployment in urban areas and unfriendly terrain, but was unreplacable due to its high numbers. During the battle of Vukovar alone, where the JNA grouped most of its tank force, many were destroyed almost exclusively by infantry-carried Anti-Tank weapons.
The T-55 has also been used by Ethiopia in the current conflict with the Islamic Courts in Somalia.
[edit] Models
- T-54-1 or T-54 Model 1946 – Produced 1947–48. With streamlined turret and wide gun mantlet, similar to T-44, new V-54 engine, unstabilized D-10T 100 mm main gun, and two SG-43 machine guns in bins on the fenders. Possibly 1,200 manufactured, and demobilized in the mid-1960s.
- T-54-2 or T-54 Model 1949 – Produced 1949–52. With dome-shaped turret inspired by the IS-3 heavy tank's, similar to later T-54's but with a distinctive overhang at the rear, and hull machine gun replacing the fender bins.
- T-54 (originally known as T-54-3, or T-54 Model 1951) – Produced 1952–54. Adopted the familiar, fully egg-shaped turret and new TSh-2-22 telescopic gunner's sight.
- T-54A - Produced 1955–57, in Poland 1956–64, in Czechoslovakia 1958–66, and in China as the Type 59. Added STP-1 Gorizont vertical-plane gun stabilizer to D-10TG gun. Originally had a small muzzle counter-weight, which was later replaced with a fume extractor. Also introducted OPVT wading snorkel, TSh-2A-22 telescopic sight, TVN-1 infrared driver's periscope and IR headlight, new R-113 radio, multi-stage engine air filter and radiator controls.
- T-54B - Produced from 1957. With improved D-10T2S gun and STP-2 Tsyklon 2-plane stabilization. From 1959, infrared night-fighting equipment was added: L-2 Luna infrared searchlight and TPN-1-22-11 IR gunner's sight, OU-3 IR commander's searchlight.
- Obiekt 139, or T-54M, but not to be confused with the T-54M modernization program - Testbed for new D-54T and D-54TS 100 mm smoothbore guns, Raduga and Molniya stabilization systems, which would later be used in the T-62. These were not completely successful, so further T-55 development continued to use the D-10 series guns.
- T-54 command tanks: T-54AK, T-54BK, T-54MK were command tanks corresponding to the main production models, with extra communications equipment. K-1 version had a second R-113 radio for company commanders, K-2 version had HTM-10 telescoping antenna mast, for battalion and regimental commanders, and regimental chiefs-of-staff.
- T-55 - Produced 1958–1962, in Poland 1958–64, in Czechoslovakia from 1958. New turret with floor, PAZ nuclear-blast protection and over-pressure NBC system, gamma ray detector, improved V-55 engine and power-assisted clutch, greater fuel and ammunition load, TDA exhaust smoke generator, deleted AA machine gun from loader's hatch. Early units had flush loader's hatch. "Starfish" road wheels replaced earlier "spider" style.
- T-55A - Produced 1963–1977, in Poland 1964–79. Improved POV anti-radiation protection (leading to visibly protruding turret hatches) and NBC filtration, dispensed with bow machine gun.
- T-55 command tanks: T-55K, T-55AK, T-55MK, etc. T-55K1, T-55K2 carried two R-123 or R-123M and an R-124 radio. T-55K3 carried R-130M, R-123M, R-124 radios and 10-metre antenna mast.
- T-62 – Produced from 1962. A major redesign, with longer hull, larger-diameter turret, and 115 mm smoothbore gun.
[edit] Modernization

- T-54M (mid-1960s) – Upgrade program to bring T-54s up to T-55 standard.
- T-54M (1977) – Additional upgrades, including OPVT snorkel and KTD-1 laser rangefinder.
- T-54AM (mid-1960s) – Further upgrades, including increased ammunition, new radios, new V-55 engine. Some received new RMSh track and drive sprocket developed for T-72 tank in late 1970s and early 1980s. Similar programs were carried out in other countries (T-54Z, T-54AZ, T-54AMZ for Zusatzausrustung, 'additional equipment' in East Germany, T-54AR Rieka, 'river', with fording snorkel in Czechoslovakia).
T-55 tanks received 12.7 mm DShKM loader's anti-aircraft machine guns starting in (Model 1970, or sometimes T-55AM), and older tanks were retrofitted starting in 1972. Laser rangefinders were added to older tanks starting 1974.
- T-55M/T-55AM - Modernization of T-55 and T-55A with and new Volna fire control system, improved gun stabilization, V-55U engine, improved suspension and RMSh track, increased armour, anti-mine, anti-napalm and improved anti-radiation protection, and optional Bastion ATGM launcher. Visual differences include laser range-finder, side skirts, smoke grenade launchers, turret brow armour and glacis appliqué, and rear RPG screens (only used rarely in Afghanistan).
- T-55M-1/T-55AM-1 – The "-1" suffix was applied to later modified tanks which were fitted with the T-72's V-46 engine.
- T-55AD/T-55AMD/T-55AD1/T-55AMD1 - "D" refers to tanks with Drozd ('thrush') APS. Soviet Naval Infantry saved money by installing Drozd on a small number of tanks instead of opting for appliqué armour, or acquiring newer T-72s. About 250 were kept in stores for secrecy, but later switched to simpler reactive armour.
- T-55MV/T-55AMV/T-55MV-1/T-55AMV-1 - "V" for vzryvnoi ('explosive') designated tanks which carried explosive reactive armour (ERA) instead of brow armour. This was adopted by Soviet Naval Infantry first, and by the Russian Army after the collapse of the Soviet Union.
- T-55AM2 - T-55AM with "brow armour" but no new ATGM and fire control.
- T-55AM2PB - mostly made in USSR for East Germany, reactive armour and ATGM, most sold back to Russia in 1992, other T-55 tanks in Russian army upgraded to T-55AM2PB standards during the period 1992 to 2000.
- T-55M5 - T-55M5 introduce in 1990, This Modernization Kit Add Explosive reactive armour “Kontakt-5", the new style fire control equipment which equips the efficiency improvement V-55U engine and a main gun stabilization system - shooter TVK-3 and TKN-1SM sites - is the tank where the modification kit which equips the same thing is applied Omsk company presents. The main gun the duck is maintaining 100mm D-10T2S guns like that it will pass like that.
- T-55M6 - T-55M6 with the T-55M5 expanded applies the package. added one wheel new chassis and completely new turret and automatic Loader equipment are added 2A46M 125mm Main gun
[edit] Variants
- OT-55 flame-thrower tank.
- MT-55A - Bridge-layer tank (tankoviy mostoukladchik).
- T-54-T Armoured recovery vehicle.
- VT-55A - Armoured recovery vehicle
- ZSU-57-2 - Self-propelled anti-aircraft gun (SPAAG); significant changes from T-54 such as much thinner armour and one less road wheel, with a new turret
[edit] International derivatives
[edit] Israel
- Tiran-4/5 - upgraded Israeli version built on tanks captured in 1967 and 1973, no longer in service in Israel but many were sold off. Sometimes known as the TI-67
- Tiran-4 - upgraded T-54.
- Tiran-4Sh - upgraded T-54, fitted with Sharir 105 mm gun.
- Tiran-5 - upgraded T-55.
- Tiran-5Sh - upgraded T-55, fitted with Sharir 105 mm gun.
- Achzarit - T-55 tank converted into IFV.
[edit] China
[edit] Iraq
- T-55 Enigma - T-55, Type 59, and Type 69 tanks used by Iraqi Brigade commanders had appliqué armour on turrets and hulls composed of several layers of spaced armour (the technique of choice for the Iraqi Engineers) plates enclosed in steel boxes. Intended to, and in many cases successful at, defeating shaped charge warheads (one example is reported to have survived several hits from Milan missiles before being dispatched by a helicopter).
- T-55QM - had NATO-standard 105 mm L7 or M68 gun installed replacing the old 100 mm gun, along with a French laser range-finder, upgrades done in mid to late 1980s.
- T-55QM2 - T-55 upgraded by Soviet technicians with a Soviet 125 mm/L52 smoothbore gun and French laser range-finder, 1986-1991.
[edit] Iran
- T-72Z Safir-74 - Iranian modernization of Iraqi captured T-54/55 and Type-59 (Chinese copy of the T-55). Includes new fire control system, laser rangefinder, ERA package, etc...
[edit] Romania
- TR-580, TR-77, or M-77 - (1977-1991) unlicensed redesign with lengthened hull and smaller wheels
- TR-85 - heavily modified T-55 copy with new (but similar) turret, new suspension, and German engine, still in production
[edit] Serbia
- T-55H - highly modernized version with new fire control system and explosive reactive armor
- VIU-55 Munja - T-55 converted into engineering IFV, similar to Israeli [[Achzari
[edit] Slovenia
- M-55S1 - highly modified version with new FCS and armor
[edit] Combat history


- Hungarian Revolution, 1956 (by the Soviet army)
- Vietnam War, 1957–75 (by the North Vietnamese Army)
- Rhodesian Bush War, 1966-1979 (by the Rhodesian Army)
- Six-Day War, 1967 (by Syria and Egypt)
- Soviet invasion of Czechoslovakia, 1968 (by Warsaw pact forces)
- Indo-Pakistani War, 1971 (by India)
- Yom Kippur War, 1973 (by Syria and Egypt)
- Angolan Civil War, 1974–2002 (by the Angolan Army)
- Lebanese War 1975-1990 (by the Syrian Army)
- Soviet war in Afghanistan, 1979–89 (by the Soviet army)
- Iran-Iraq War 1980–88 (by both Iran and Iraq))
- Sri Lankan civil war 1983- (by the Sri Lankan army)
- Persian Gulf War 1990–91 (by the Iraqi army)
- Nagorno-Karabakh War 1990–91 (by all sides)
- Yugoslav wars 1991–1999
- Slovenian War 1991 (by Yugoslav Army)
- Croatian War of Independence 1991-1995 (both sides)
- Bosnian War 1992-1995 (all sides)
- Kosovo War 1999 (by Yugoslav Army)
- First Chechen War, 1994–96 (by the Russian Army)
- First Congo War, 1996–97 (by the DR Congo army)
- Second Congo War, 1998–2002 (by all sides)
- Albano-Macedonian conflict 2001
- Ethiopian-Eritrean War (by both sides)
- Second Chechen War, 1999–2002 (by the Russian Army)
- War in Afghanistan, 2001 (by the Northern Alliance)
- Iraq War 2003 (by the Iraqi Army)
- War in Somalia (2006-present) (by the Ethiopian Army)
[edit] Operators
Although it is far from a state-of-the-art tank, T-54/55 remains in service with nations which don't expect to participate in intensive armoured warfare, and as second-line equipment.
Afghanistan
Albania
Algeria
Angola
Azerbaijan
Bangladesh
Belarus
Bosnia and Herzegovina
Bulgaria
Cambodia [9]
Central African Republic
People's Republic of China (Type 59)
Democratic Republic of the Congo (Type 59)
Croatia
Cuba
Czechoslovakia: Passed on successor states
Czech Republic - not used since early 2000s
Egypt
Equatorial Guinea
Ethiopia
Finland
Georgia [9]
Guinea
Guinea-Bissau
India
Indonesia (used VT-55A recovery vehicle)
Iran (captured from Iraq)
Iraq
Israel
Latvia [9]
Lebanon
Libya
Republic of Macedonia
Mali
Monaco
Mauritania
Morocco
Mozambique
Myanmar (Type 59)
Nicaragua
Nigeria
DPR Korea (Type 59)
Pakistan (Type 59/Al-Zarar)
Peru
Poland
Romania
Russia
Serbia
Slovenia
Slovakia
Somalia
South Yemen
Soviet Union: Passed on successor states
Sri Lanka [9]
Sudan [9]
Syria
Uganda
Ukraine
Uruguay
Vietnam
Yemen [9]
Yugoslavia
Zambia
Zimbabwe
[edit] Notes
- ^ Zaloga 2004, p 40.
- ^ Foss 2005, p 110, Saferworld, 2002.
- ^ Zaloga 2004, p 39.
- ^ Concord Publications Armor of the Vietnam war 1 and 2.
- ^ Concord Publications Armor of the Vietnam war 1 p 5, P 7.
- ^ Concord Publications Armor of the Vietnam war part 2.
- ^ Concord Publications Tank battles of the mid east wars part 1
- ^ Concord Publications Tank battles of the mid east wars part 1
- ^ a b c d e f Saferworld (2002) lists recent Czech and Polish exports of T-54/55 tanks.
[edit] References
- Cockburn, Andrew (1983). The Threat: Inside the Soviet Military Machine. New York: Random House. ISBN 0-394-52402-0.
- Foss, Christopher F., ed (2005). Jane's Armour and Artillery 2005–2006, 26th edition. ISBN 0-7106-2686-X.
- Saferworld (2002). Arms production, exports and decision-making in Central and Eastern Europe. London. ISBN 0-948546-87-5.
- Zaloga, Steven J. and Hugh Johnson (2004). T-54 and T-55 Main Battle Tanks 1944–2004. Oxford: Osprey. ISBN 1-84176-792-1.
- Technical data sheet and pictures T-55 from ArmyRecognition.com
- T-55 Variant walk arounds and photos on Prime Portal
- History of British Centurion Tank from diggerhistory.info
- Penetration performance of the 20 pdr from wwiivehicles.com
- 100mm D-10 Gun Penetration Performance from wwii.vehicles.com
[edit] Related content
[edit] Related development
[edit] Comparable AFV
[edit] Designation sequence
T-54 - T-55 - T-62 - T-64 - T-72 - T-80 - T-90 - T-95
[edit] Related lists
[edit] See Also
[edit] See also
[edit] External links
- Photos: T-54-1, T-54-2, T-55AM, T-55AM2
- Cuban T-55
Soviet and post-Soviet armoured fighting vehicles after World War II | ||||||||||||||
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List of armoured fighting vehicles by country |