ST-I

Cost

3 561 000
166 000

Preceded by

VIIIKV-4

Succeeded by

XIS-4

Competes with

IXIS-8

Configuration

Provisions

Equipment

Modules

VIII

Crew

1Commander
1Gunner
2Loader
1Driver
0Radio operator

                    
                    113%
                  
Base mastery

                    124.3%
                  
Aiming

                    124.3%
                  
Reloading

                    124.3%
                  
Driving

Crew skills

If skill is a chance-based one or require special conditions to work, the effect is shown for when skill is activated. Purple background shows that skill does not affect any of displayed parameters.

Extra concealment

Consumables

75s
15s

75s
15s

Boosters

Parameters

Compare tank's parameters with others from:

2200

4 / 18

282.5m

View range

1 / 18

Firepower

Shell

2381
DPM
9 / 18
258
Penetration
2 / 18
420
Damage
10 / 18
165
Devices/crew damage
7 / 18
—
Burst damage
— / —
940
Velocity
9 / 18

                      3.10%
                    
Penetration loss over distance
6 / 18
—
Explosion radius
— / —

2041
DPM
9 / 18
340
Penetration
1 / 18
360
Damage
10 / 18
165
Devices/crew damage
7 / 18
—
Burst damage
— / —
920
Velocity
13 / 18

                      —%
                    
Penetration loss over distance
— / —
—
Explosion radius
— / —

2835
DPM
16 / 18
68
Penetration
3 / 18
500
Damage
15 / 18
165
Devices/crew damage
7 / 18
—
Burst damage
— / —
940
Velocity
7 / 18

                      —%
                    
Penetration loss over distance
— / —
2.49
Explosion radius
7 / 18

DPM
— / —
Penetration
— / —
Damage
— / —
Devices/crew damage
— / —
Burst damage
— / —
Velocity
— / —

                      %
                    
Penetration loss over distance
— / —
Explosion radius
— / —

122.0

Caliber

7 / 18

5.67

Rate of fire

10 / 18

10.58

Reload time

6 / 13

—

Magazine reload time

— / —

/ / /

Time to load next shell

— / —

—×

Magazine size

— / —

—

Time before next shell is ready

— / —

Gun handling

2.63

                  Base aim time
                  
                
11 / 18
0.344
Dispersion
6 / 18
Dispersion factors
0.250
When moving
18 / 18
0.250
When rotating
18 / 18
0.160
When rotating turret
10 / 18
3.500
After shot
5 / 18
Gun angles

                  8°
                
Depression
3 / 18

                  16°
                
Elevation
9 / 18

                  180°/180°
                
Aiming arc (left / right)
1 / 18
19.44
Turret traverse speed
13 / 18

Mobility

61.02
Weight
7 / 18
Speed
38
Forward
10 / 18
13
Backward
14 / 18

                  Effective Power / Weight ratio
                  
                
10.52
On hard terrain
16 / 18
8.41
On medium terrain
17 / 18
6.01
On soft terrain
18 / 18
Traverse speed
24.76
On hard terrain
16 / 18
19.81
On medium terrain
18 / 18
14.15
On soft terrain
18 / 18

                  6.49m×2.90m×2.19m
                  
Size
5 / 18
Concealment

                  12.71%
                
While still
7 / 18

                  7.40%
                
While moving
7 / 18

                  3.93%
                
Upon firing while still
7 / 18

                  2.97%
                
Upon firing while moving
7 / 18

                    Spotting distance by enemy with view range of
                    282m
                  

                  252.5m
                
While still

                  264.8m
                
While moving

                  272.9m
                
Upon firing while still

                  275.1m
                
Upon firing while moving

Armor profile

Click or tap on the image to see 3D model

Primary armor

328–410
246–328
164–246
82–164
0–82

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

APP

HEP

APP

HEP

APP

HEP

From the side

APP

HEP

APP

HEP

APP

HEP

From the back

APP

HEP

APP

HEP

APP

HEP

Score is a recommendation whether tank is suitable for given tactic:

Good— perfect fit
Average— can perform quite good
Not recommended— result is not guaranteed

Click on the score to get more information.

Tactics

Tank's sutability for commonly used tactics based on tank's top stats and compared to others in the battle. Personal experience is not considered

In:

Peek-A-Boo Not recommended Not recommended

You hide behind a cover, fully reload your gun, pre-aim and sneak out just for a second to make one damaging shot. Before enemy realizes you are hidden again. Decent mobility and aiming stabilization and you surely can pull this one off.

Long range sniping Average Average

Hiding in the bush on the hill and shooting at enemies on the other side of the map. If you don't mind all the hate that comes with it then you just need good dispersion and penetration to make every shot count.

Front Line Average Average

Forget rocks, hills, buildings and all other cover. Make youself a cover for your teammates. Of course, this works only if you have very good armor and know how to use it or… well if you're already dead.

Circle Of Death Not recommended Not recommended

Drive behind slow tank destoyers and heavy tanks and keep circling around them to avoid being hit while making easy shots into the back of the enemy. Good traverse speed and acceleration is required.

Hit & Run Not recommended Not recommended

Hide in the bush, spot the enemy without being seen. Take a shot and start running. Fast. Repeat until no enemies left. Master this technique and there are many masteries coming your way.

1 vs 1 brawl Not recommended Not recommended

Who would win in 1 on 1 brawl depends on too many variables. Armor, guns, mobility, tanks sizes and many others. One thing for sure: without good DPM it's better to stay in the group or keep your distance.

Historical Reference

The design was developed at Factory No. 92 by engineers V.A. Ganin and A.S. Chasovnikov. The new tank was intended as an upgraded version of the unsatisfactory heavy tanks of that time. Existed only in blueprints.

ST-I — Tier IX Soviet heavy tank

ST-I

Parameters

Armor profile

Armor performance