Soviet/Russian Heavy Tanks

References:

Note: Obj ect is Объект in Russian if you want to Google the net for more designs. Be sure to have the latest internet explorer, a decent antivirus program, firewall, and god knows what else; since the Russian corner of the internet is full of viruses, et al.

Miscellaneous

Object 244

Object 277

Year: 1958

Developer: J. Y. Kotin

Quantity: 2

Gun: 130mm M-65 (26 rounds)

Coaxial: 14.5mm KPVT (250 rounds)

Stabilizer: “Groza” Two Plane Stabilizer.

Engine: V-12 Diesel; 1,090 hp at 1,850 RPM

Object 278

Notes: Projected development of Object 277 with 1,000 hp Gas turbine engine. Paper only.

Object 279

Year: 1957

Developer: L.S. Troyanov

Gun: 130mm Rifled Gun M-65 (24 rounds)

Coaxial: 14.5mm KPVT (300 rounds)

Crew: 4

Combat Weight: 60 metric tons

Length (Gun Forward): 10,238 mm

Width: 3,400 mm

Height: 2,475 mm

Engine Choice 1: DG-1000 four stroke 16 cylinder “H” diesel; 950 hp at 2,500 RPM

Engine Choice 2: 2DG-8M four stroke 16 cylinder “H” diesel. 1000 hp at 2,400 RPM.

Highway Speed: 55 km/h

Highway Range: 250 kilometers

Notes: Heavy four-tracked tank with rounded hull to operate in heavy nuclear environments.

Object 770 Heavy Tank

Designer: Chelyabinsk

Gun: 130mm Rifled Gun M-65 (37 rounds of which 18 are in turret. Electromechanical rammer; 5-7 RPM)

Coaxial: 14.5mm KPVT (250 rounds)

Stabilizer: Biplanar

Rangefinder: Stereoscopic TPD-2S

Crew: 4

Engine: DTN-10 Diesel; 10 cylinders, 1,000 hp at 2,500 rpm.

Stalin Series (IS)

(IS-2M)

Main Gun: (35 rounds)

Notes: Deep modernization of IS-2 to extend service life beginning in 1954.

Object 703 (IS-3)

Production: May 1945-Mid 1946

Notes: The first pilot batches were produced May 1945.

Object 701-1 (Early IS-4 prototype)

Object 701-2 (Early IS-4 prototype)

Main Gun: 100mm S-34 Gun (30 rounds)

Combat Weight: 55,900 kg

Engine: 750 hp

Object 701-5 (Early IS-4 prototype)

Main Gun: 122mm D-25T Gun

Combat Weight: 58,500 kg

Object 701-6 (IS-4)

Design Period: 1943-45

Adopted: 29 April 1946 by USSR Council Decree 961403

Production: March 1947 to 1 January 1949

Quantity Built: 219 to 250~

Cost: 1~ million 1947 Rubles

Length: 9,700mm

Width: 3,260mm

Height: 2,480mm

Ground Clearance: 410mm

Combat Weight: 58,500 kg

Gun: 125mm Rifled Gun D-25T (30 rounds)

Crew: 4

Engine: V-12 Diesel (750 hp at 2,100 RPM)

Internal Fuel: 410 Liters in four tanks

External Fuel: 4 x 90 Liter External Tanks

Highway Speed: 43 km/hr

Object 248 (IS-5)

Gun: 100mm Rifled Gun S-34

Notes: There was a second IS-5 design which never got off the mockup stage.

Object 252 (IS-6 Mechanical Transmission)

Object 253 (IS-6 Electro-Mechanical Transmission)

Coaxial: 7.62mm

Engine: V-12U (700 hp)

Highway Speed: 35 km/hr

Object 257

Object 258

Object 259

Object 260 (IS-7)

Gun: 130mm Rifled Gun S-70 (30 rounds)

Combat Weight: 68 metric tons

Length (Gun Forward): 11.17 meters

Width: 3.44 meters

Height: 2.6 meters

Crew: 5 (Commander, Gunner, Two Loaders, Driver)

Engine: M-50 V-12 Four Stroke Diesel

Highway Speed: 55-60 km/h

Highway Range: 190-300 kilometers

Notes: Two designs actually had this designation. The first one in 1945 only reached the wooden mockup stage. The second had it's first prototype completed 8 September 1946, followed by a second on 25 December 1946. This version had the 130mm S-26 gun.

Tests with 88mm, 122mm, and 128mm guns were carried out; and the hull and turret were redesigned for better armor protection. Additionally, the newer 130mm S-70 gun was fitted. Four of these improved IS-7s were built in the summer of 1948 and tested.

IS-8

Notes: After ten prototypes were built and evaluated, it was recommended that it be put into production after improvements were implemented. Implementing these changes required several more designations (see IS-9 and IS-10).

Object 730 (IS-10 / T-10)

Combat Weight: 50 metric tonnes

Gun: 122mm D-25TA (30 rounds)

Coaxial: 12.7mm DshKM (300 rounds)

Engine: V-12-5 Diesel (700 hp at 2,100 RPM)

Notes: After Stalin's death, the designation was changed from IS-10 to T-10.

Object 730A (T-10A)

Produced: 1956-1957

Gun: 122mm D-25TA (30 rounds)

Stabilizer: Single Plane Stabilizer

Coaxial: 12.7mm DshKM (300 rounds)

Object 730B / 730Б (T-10B / Т-10Б)

Produced: 1957-1958

Quantity Built: 110

Gun: 122mm D-25TA (30 rounds)

Stabilizer: Two-plane stabilizer “Thunder”

Coaxial: 12.7mm DshKM (300 rounds)

Object 730BK (T-10BK)

Notes : Command tank version.

Object 272 / Object 734 (T-10M)

Length: 10,560mm

Width: 3,518mm

Height: 2,585mm

Ground Clearance: 460mm

Main Gun: 122mm M-62T-2 (2A17) (30 rounds)

Stabilizer: 2E12 “Liven” Two Plane Stabilizer

Coaxial: 14.5mm KPVT

Combat Weight: 51.5 metric tons

Engine: V-12-6 (750 hp at 2,100 RPM)

Notes: Chelyabinsk built T-10Ms were Object 734; and Leningrad-Built T-10Ms were Object 272. Differences were transmission components, etc.

Object 272K (T-10MK)

Start of Production: 1959

End of Production: 1964

Quantity Built: 100~

Notes: Command version.