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IS-3 Defender — Tier VIII Soviet heavy tank

IS-3 Defender

VIII

Parameters

Compare tank's parameters with others from:
1550
HP
7 / 22
276.7
View range
9 / 22
Firepower
Shell
1911
DPM
10 / 22
221
Penetration
11 / 22
400
Damage
1 / 22
165
Devices/crew damage
1 / 22
1200
Burst damage
1 / 2
1400
Velocity
1 / 22
12.67%
Penetration loss over distance
14 / 22
Explosion radius
— / —
1625
DPM
9 / 22
270
Penetration
7 / 22
340
Damage
1 / 22
165
Devices/crew damage
1 / 22
1020
Burst damage
1 / 2
820
Velocity
16 / 22
%
Penetration loss over distance
— / —
Explosion radius
— / —
2389
DPM
12 / 22
61
Penetration
3 / 22
500
Damage
4 / 22
165
Devices/crew damage
1 / 22
1500
Burst damage
1 / 2
790
Velocity
18 / 22
%
Penetration loss over distance
— / —
2.49
Explosion radius
1 / 22
DPM
— / —
Penetration
— / —
Damage
— / —
Devices/crew damage
— / —
Burst damage
— / —
Velocity
— / —
%
Penetration loss over distance
— / —
Explosion radius
— / —
122.0
Caliber
1 / 22
4.78
Rate of fire
12 / 22
0.00
Reload time
— / —
22.67
Magazin reload time
2 / 2
3
Magazine size
1 / 2
7.50
Shell reload time
2 / 2
Gun handling
3.01
Base aim time
20 / 22
0.381
Dispersion
16 / 22
Dispersion factors
0.240
When moving
16 / 22
0.240
When rotating
16 / 22
0.140
When rotating turret
6 / 22
4.000
After shot
7 / 22
Gun angles
7°
Depression
9 / 22
18°
Elevation
10 / 22
180°/180°
Aiming arc (left / right)
1 / 22
24.82
Turret traverse speed
12 / 22
Mobility
49.00
Weight
20 / 22
Speed
40
Forward
4 / 22
15
Backward
4 / 22
Effective Power / Weight ratio
13.92
On hard terrain
5 / 22
11.60
On medium terrain
5 / 22
6.63
On soft terrain
13 / 22
Traverse speed
32.26
On hard terrain
12 / 22
26.89
On medium terrain
8 / 22
15.36
On soft terrain
18 / 22
6.85m×3.29m×1.86m
Size
5 / 22

Armor profile

Click or tap on the image to see 3D model
Primary armor
  • 240–300
  • 180–240
  • 120–180
  • 60–120
  • 0–60
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
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Historical Reference

In 1956–1957, the Military Armored Forces Academy developed a speculative design for a new loading system on the IS-3 and T-10 heavy tanks. The IS-3 variant featured a double-row ammo rack with an automatic loading system. The crew was reduced to three members: commander, gunner, and driver. The turret was redesigned in order to accommodate the loading mechanism. The vehicle existed only in blueprints.

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