T-10 tank

The T-10 (also known as Object 730 or, IS-8) was a Soviet heavy tank of the Cold War, the final development of the IS tank series. During development, it was called IS-8 and IS-9. It was accepted into production in 1952 as the IS-10 (Iosif Stalin, Russian form of Joseph Stalin), but due to the political climate in the wake of Stalin's death in 1953, it was renamed T-10.

T-10 Heavy Tank
TypeHeavy tank
Place of originSoviet Union
Service history
In service1953–1996
WarsCold War
Invasion of Czechoslovakia
Production history
DesignerZhozef Kotin
ManufacturerFactory 185, Factory 174
No. built1,439
Mass52 tonnes
Length7.41 m, 9.87 m over gun
Width3.56 m
Height2.43 m

  • T-10, A/B: 203mm@24° to 129mm@57°
  • T-10M: 230mm@24° to 137mm@57°

Upper Glacis:

  • 120mm@55°&40° compound angle
  • 273mm LoS

Lower Glacis:

  • 120mm@50°
  • 186mm LoS

Upper Side:

  • 80mm@62° + 30mm@30°
  • 205mm LoS

Lower Side:

  • 80mm@10°

Rear: 60mm

Mantlet: 252mm
122mm D-25TA gun T-10M: 122mm M-62-T2 gun
2 × 12.7 DShKM machine gun
T-10M: 2 x 14.5 KPVT heavy machine gun
Engine39-l 12-cyl. diesel model V-2-IS
700 hp (522 kW) T-10M: 750 hp (559 kW)
Power/weight13 hp/tonne
250 km/150 miles
Speed42 km/h (26 mph) T-10M: 50 km/h (31 mph)

The biggest differences from its direct ancestor, the IS-3, were a longer hull, seven pairs of road wheels instead of six, a larger turret mounting a new gun with fume extractor, an improved diesel engine, and increased armour. General performance was similar, although the T-10 could carry more ammunition.

T-10s (like the IS tanks they replaced) were deployed in independent tank regiments belonging to armies, and independent tank battalions belonging to divisions. These independent tank units could be attached to mechanized units, to support infantry operations and perform breakthroughs.

Demise of Soviet heavy tanks

The mobile nature of armoured warfare in World War II had demonstrated the drawbacks of the slow heavy tanks. In the final push towards Berlin, mechanized divisions had become widely split up as heavy tanks lagged behind the mobile T-34s. The Soviets continued to produce heavy tanks for a few years as part of the Cold War arms race (compare the heavier U.S. M103 and British Conqueror), but the more flexible T-54 and T-62 medium tanks already had armour and armament comparable to the T-10's.

In the 1960s, the Soviets embraced the main battle tank (MBT) concept, by replacing heavy tanks with mobile medium tanks. In the late 1960s, the independent tank battalions with heavy tanks were re-equipped with the higher-technology T-64s, and later, the very fast T-80, while regular tank and mechanized units fielded the more basic T-55s and T-72s. T-10 production was stopped in 1966, and heavy tank projects were cancelled, such as the auto-loaded, 130 mm-armed Obiekt 770.[1]

Antitank guided missiles (ATGMs) started to be deployed widely during this period, and would become an effective replacement for the heavy tanks' long-range firepower. The Soviets made use of them first on BMP-1 infantry fighting vehicles, and later on the T-64 and other MBTs. Eventually, light, sophisticated reactive armour was used to give the MBTs a further edge in protection without slowing them down.

Name changes

The T-10 underwent a number of designation changes during its design process starting in 1944 and ending its acceptance into service as the T-10.[2]

2 April 1946 Object 705A ChKZ ordered to work on the Object 705A, a variant of the Object 705[2]
11 April 1949 IS-5 or Object 730 Redesignated the IS-5 or Object 730[2]
29 February 1953 IS-8 or Object 730 Redesignated due to a massive number of improvements to the prototype[2]
28 November 1953 T-10 Accepted for service, redesignated the T-10[2] as part of a destalinization process.[3]

Production history

The T-10 served with the Soviet Union but was not known to have been provided to Warsaw Pact nations, though Soviet heavy tank regiments stationed in those countries may have been equipped with them. Prior to 1962, T-10Ms were in simultaneous production by two factories (Kirov as Object 272 and Chelyabinsk as Object 734) whose parts were incompatible with those of the other; Kirov's version was standardized in 1962.[5]

The T-10 was never exported outside of the Soviet Union.[6]

Some older western sources claimed[7][8] that the T-10 was exported to Syria and/or Egypt, however no photographic evidence of it in service or combat has come to light. Heavy tanks were withdrawn from Soviet front-line service by 1967, and entirely removed from reserve service by 1996.[9].

It is estimated that some 6,000 Soviet heavy tanks were built after the end of World War II, of which 1,439 were T-10s.[10]


  • T-10 (1952)
  • T-10A (1956): T-10 with an added single-plane gun stabilizer.
  • T-10B (1957): T-10 with an added 2-plane gun stabilizer.
  • T-10M (1957): Modernized version with longer M-62-T2 L/46 gun with five-baffle muzzle brake, 2-plane gun stabilizer, machine guns replaced with 14.5 mm KPVT (a better ballistic match for the new main gun), infrared night vision equipment, NBC protection. Overall length is 10.29 m.
    • 1963 - T-10M is equipped with OPVT deep-wading snorkel.
    • 1967 - T-10M is supplied with APDS and HEAT ammunition.
  • Object 268 (1956): Proposed Self-propelled gun on a T-10M hull. One prototype was produced, but never entered production.


Former operators

See also

Tanks of comparable role and capability


  1. Sewell 1998, p. 21.
  2. Kinnear, James; Sewell, Stephen (29 June 2017). "Soviet T-10 Heavy Tank and Variants". Bloomsbury Publishing.
  3. Gao, Charlie (8 December 2018). "Meet Stalin's Cold War Monster: The T-10M Heavy Tank". The National Interest.
  4. Miller 2000, p. 250.
  5. Sewell 1998, p. 27.
  6. Kinnear 2017, p. 35.
  7. Tucker, p. 148.
  8. Miller, p. 251.
  9. Haskew 2014, p. 17.
  10. M. V. Pavlov; I. V. Pavlov, Equipment and Armament, n.6 2008


  • Miller, David, The Illustrated Directory of Tanks of the World (Zenith Imprint Press, 2000) ISBN 0-7603-0892-6
  • Perret, Bryan, Soviet Armour Since 1945, London:Blandford Press (1987), ISBN 0-7137-1735-1
  • (English) M. V. Pavlov; I. V. Pavlov, "Domestic Armored Vehicles of the 1945-1965 biennium", Table 4 "Production of tanks in the 1945-1965 biennium", Equipment and Armament, n.6 2008 (June 2008)
    • (Original Russian) М. В. Павлов; И.В. Павлов, "Отечественные бронированные машины в 1945–1965 гг", Таблица 4 "Производство танков в 1945–1965 гг", Техника и вооружение, n.6 2008 (June 2008)
  • Sewell, Stephen ‘Cookie’, Why Three Tanks?, Armor, vol. 108, n 4 (July–August 1998), Fort Knox, KY: US Army Armor Center
  • Sewell, Stephen ‘Cookie’ (2002). “Red Star – White Elephant?” in Armor (July–August 2002), pp 26–32. Fort Knox, KY: US Army Armor Center
  • Kinnear, James; Sewell, Stephen 'Cookie' Soviet T-10 Heavy Tank and Variants (Osprey Publishing, 2017) ISBN 978-1-4728-2051-8
  • Tucker, Spencer, Tanks: An Illustrated History of Their Impact, ABC-CLIO (2004), ISBN 1-57607-995-3, ISBN 978-1-57607-995-9
  • Magnuski, Janusz. “Czołg Ciężki T-10” in Nowa Technika Wojskowa (August 1955).
  • Haskew, Michael. "Modern Tanks and Artillery (1945–Present): The World's Greatest Weapons (Amber Books, September 19, 2014) ISBN 978-1-78274-205-0
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