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IS-4 — Tier X Soviet heavy tank

IS-4

X
Cost
  • 6 100 000
  • 236 250
Preceded by
Competes with

Parameters

Compare tank's parameters with others from:
2650
HP
3 / 21
282.5m
View range
1 / 21
Firepower
Shell
2637
DPM
12 / 21
258
Penetration
9 / 21
420
Damage
9 / 21
165
Devices/crew damage
8 / 21
—
Burst damage
— / —
940
Velocity
14 / 21
3.10%
Penetration loss over distance
2 / 21
—
Explosion radius
— / —
2260
DPM
13 / 21
340
Penetration
1 / 21
360
Damage
9 / 21
165
Devices/crew damage
8 / 21
—
Burst damage
— / —
920
Velocity
15 / 21
—%
Penetration loss over distance
— / —
—
Explosion radius
— / —
3139
DPM
18 / 21
68
Penetration
7 / 21
500
Damage
17 / 21
165
Devices/crew damage
8 / 21
—
Burst damage
— / —
940
Velocity
9 / 21
—%
Penetration loss over distance
— / —
2.49
Explosion radius
8 / 21
DPM
— / —
Penetration
— / —
Damage
— / —
Devices/crew damage
— / —
Burst damage
— / —
Velocity
— / —
%
Penetration loss over distance
— / —
Explosion radius
— / —
122.0
Caliber
8 / 21
6.28
Rate of fire
12 / 21
9.56
Reload time
10 / 17
—
Magazine reload time
— / —
Time to load next shell
— / —
—×
Magazine size
— / —
—
Time before next shell is ready
— / —
Gun handling
2.63
Base aim time
18 / 21
0.344
Dispersion
13 / 21
Dispersion factors
0.200
When moving
13 / 21
0.200
When rotating
13 / 21
0.100
When rotating turret
10 / 21
3.500
After shot
4 / 21
Gun angles
6°
Depression
18 / 21
16°
Elevation
11 / 21
180°/180°
Aiming arc (left / right)
1 / 21
17.01
Turret traverse speed
20 / 21
Mobility
60.83
Weight
11 / 21
Speed
38
Forward
10 / 21
14
Backward
18 / 21
Effective Power / Weight ratio
11.51
On hard terrain
15 / 21
9.04
On medium terrain
17 / 21
7.45
On soft terrain
12 / 21
Traverse speed
30.37
On hard terrain
10 / 21
23.86
On medium terrain
18 / 21
19.65
On soft terrain
10 / 21
6.24m×3.08m×2.08m
Size
5 / 21
Concealment
13.70%
While still
3 / 21
7.90%
While moving
3 / 21
4.11%
Upon firing while still
6 / 21
3.06%
Upon firing while moving
6 / 21
Spotting distance by enemy with view range of 282m
250.2m
While still
263.7m
While moving
272.5m
Upon firing while still
274.9m
Upon firing while moving

Armor profile

Click or tap on the image to see 3D model
Primary armor
  • 280–350
  • 210–280
  • 140–210
  • 70–140
  • 0–70
Spaced armor
  • 288–360
  • 216–288
  • 144–216
  • 72–144
  • 0–72
Weak
Strong
Chances of getting penetrated from 100m distance by average tank of given type:
  • — less than 30%
  • — between 30% and 70%
  • — more than 70%

Armor performance

Based on tank position, enemy tank type and shells
In battle vs:
Head on
AP
APP
HE
HEP
AP
APP
HE
HEP
From the side
AP
APP
HE
HEP
AP
APP
HE
HEP
From the back
AP
APP
HE
HEP
AP
APP
HE
HEP
Historical Reference

The project was developed by the Design Bureau of the Chelyabinsk Kirov Plant starting in December 1943. In April 1944 two prototypes of the Object 701 were built. After prototype trials, the design was improved. In late 1944 and early 1945 two more prototypes underwent trials. The Object 701 No. 5 was recommended for adoption into service. However, production was called off in favor of the IS-3 just entering mass-production. After IS-3 production was suspended in 1946, production of the IS-4 began, continuing until 1949. A total of 25 IS-4M tanks were built in 1951. Later all previously produced tanks were modernized to the level of the IS-4M. According to different sources, between 235 and 258 vehicles were built in total; they were stationed in the Far East.