The T-10 was a Soviet heavy tank of the Cold War, the final development of the KV and IS tank series. 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.
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.
| T-10 Heavy Tank | |
|---|---|
| Type | Heavy tank |
| Place of origin |  Soviet Union |
| Service history | |
| In service | 1953–late 1970s |
| Used by | Soviet Union |
| Wars | 1973 October War |
| Production history | |
| Designer | Zhozef Kotin |
| Designed | 1948–52 |
| Manufacturer | Factory 185, Factory 174 |
| Produced | 1953–66 |
| Number built | 8,000 |
| Specifications | |
| Weight | 52 tonnes |
| Length | 7.41 m, 9.87 m over gun |
| Width | 3.56 m |
| Height | 2.43 m |
| Crew | 4 |
| | |
| Armour | 250 mm |
| Main armament | 122 mm D-25TA |
| Secondary armament | 2 × 12.7 mm DShKM machine guns |
| Engine | 39-l 12-cyl. diesel model V-2-IS 700 hp (522 kW) |
| Power/weight | 13 hp/tonne |
| Suspension | torsion-bar |
| Operational range | 250 km |
| Speed | 42 km/h |
