Object 259A

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Obj. 259A
In June 1945, the Design Bureau of Factory No. 100 started designing the second tank designated IS-7. Compared to the preliminary variant, the Object 257, armoring and mobility requirements increased. In September 1945, four draft designs were developed for the tank that was still called the IS-7. The Object 259 was a project with the KCh-30 engine and an electromechanical transmission. In 1946, several variants of the vehicle's machine gun armament were developed, including several types of turret-mounted rear anti-aircraft guns with remote aiming.

122 mm S-34-II

Object 259A

10RK-26

KCh-30A

Object 259A

Shell Types:

APCR
HEAT
HE

Equipment:

Consumables:

Firepower:

Ammunition38 (rounds)
Caliber122 (mm)
Damage420 / 420 / 530 (HP)
Penetration233 / 285 / 61 (mm)
Rate of Fire4.00 (rounds/min)
Average Damage per Minute1680 (HP)
Shells in the Magazine  
Time for Loading Between Shots  (s)
Time for Complete Loading  (s)
Gun Loading15.00 (s)
Aiming Time2.80 (s)
Dispersion at 100 m0.38 (m)

Mobility:

Weight/Load Limit60.00 / 62.50 (t)
Engine Power900 (h.p.)
Specific Power15.00 (h.p./t)
Top Speed60 (km/h)
Reverse Speed12 (km/h)
Traverse Speed30 (deg/s)
Turret Traverse Speed29 (deg/s)

Survivability:

Hit Points1450 (HP)
Hull Armor110 / 100 / 90 (mm)
Turret Armor260 / 155 / 100 (mm)

Spotting:

View Range380 (m)
Signal Range720 (m)
 

Crew:

Commander(Radio Operator)
Driver
Gunner
Loader
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