If you like the project, consider supporting it on Patreon


IS — Tier VII Soviet heavy tank

IS

VII
Cost
  • 1 424 000
  • 58 390
Preceded by
Succeeded by
Competes with

Parameters

Compare tank's parameters with others from:
1300
HP
13 / 18
271.2m
View range
5 / 18
Firepower
Shell
1900
DPM
12 / 18
175
Penetration
9 / 18
400
Damage
3 / 18
165
Devices/crew damage
3 / 18
Burst damage
— / —
780
Velocity
15 / 18
13.14%
Penetration loss over distance
12 / 17
Explosion radius
— / —
1615
DPM
13 / 18
217
Penetration
13 / 18
340
Damage
3 / 18
165
Devices/crew damage
3 / 18
Burst damage
— / —
975
Velocity
13 / 18
5.99%
Penetration loss over distance
1 / 16
Explosion radius
— / —
2375
DPM
13 / 18
61
Penetration
4 / 18
500
Damage
4 / 18
165
Devices/crew damage
3 / 18
Burst damage
— / —
780
Velocity
15 / 18
%
Penetration loss over distance
— / —
2.49
Explosion radius
3 / 18
DPM
— / —
Penetration
— / —
Damage
— / —
Devices/crew damage
— / —
Burst damage
— / —
Velocity
— / —
%
Penetration loss over distance
— / —
Explosion radius
— / —
122.0
Caliber
3 / 18
4.75
Rate of fire
12 / 18
12.63
Reload time
10 / 16
Magazine reload time
— / —
Time to load next shell
— / —
Magazine size
— / —
Time before next shell is ready
— / —
Gun handling
3.08
Base aim time
16 / 18
0.398
Dispersion
12 / 18
Dispersion factors
0.220
When moving
8 / 18
0.220
When rotating
8 / 18
0.180
When rotating turret
13 / 18
4.000
After shot
4 / 18
Gun angles
6°
Depression
11 / 18
25°
Elevation
1 / 18
180°/180°
Aiming arc (left / right)
1 / 18
34.02
Turret traverse speed
5 / 18
Mobility
46.22
Weight
17 / 18
Speed
34
Forward
10 / 18
14
Backward
4 / 18
Effective Power / Weight ratio
15.15
On hard terrain
2 / 18
11.90
On medium terrain
5 / 18
9.26
On soft terrain
3 / 18
Traverse speed
46.19
On hard terrain
1 / 18
36.29
On medium terrain
2 / 18
28.22
On soft terrain
1 / 18
6.54m×2.63m×2.21m
Size
1 / 18
Concealment
15.90%
While still
6 / 18
9.00%
While moving
6 / 18
4.64%
Upon firing while still
8 / 18
3.33%
Upon firing while moving
8 / 18
Spotting distance by enemy with view range of 271m
235.9m
While still
251.1m
While moving
260.7m
Upon firing while still
263.6m
Upon firing while moving

Armor profile

Click or tap on the image to see 3D model
Primary armor
  • 224–280
  • 168–224
  • 112–168
  • 56–112
  • 0–56
Spaced armor
  • 224–280
  • 168–224
  • 112–168
  • 56–112
  • 0–56
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
AP
APP
HE
HEP
From the side
AP
APP
HE
HEP
AP
APP
HE
HEP
AP
APP
HE
HEP
From the back
AP
APP
HE
HEP
AP
APP
HE
HEP
AP
APP
HE
HEP
Historical Reference

The IS-1 (IS-85) heavy tank was a thorough modernization of the KV-1. The tank featured the 85-mm D-5T gun. The IS-1 entered mass production in October 1943, but work was discontinued at the beginning of 1944, as the IS-2 (IS-122) tank entered mass production in December 1943. A total of 107 vehicles were manufactured.