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The ST-I has 1600 hit points , 150mm of frontal hull armor , and a top speed of 40 km/h. . The vehicle can equip 3 different gun configurations, allowing for varied playstyles.
Hull & survivability
| Hit points (HP) | 1600 |
|---|---|
| Weight | 30.0 t |
| Hull armor (F / S / R) | 150 / 140 / 100 mm |
The front-to-side armor ratio is 1.1:1. Side armor is relatively comparable to the front, meaning the ST-I can absorb some side hits in close-quarters fighting.
Mobility
| Top forward speed | 40 km/h |
|---|---|
| Top reverse speed | 13 km/h |
Forward-to-reverse speed ratio is 3.1:1. Reverse speed is limited, so pre-aim and exposure timing matter more on this vehicle.
Camouflage
| Camo (stationary) | 11.7% |
|---|---|
| Camo (moving) | 5.9% |
Available guns (3)
| Gun | Tier | Damage | Pen | Reload | RoF |
|---|---|---|---|---|---|
| 122 mm BL-9 | 8 | — | — | 11.7s | — |
| 122 mm BL-9 | 8 | — | — | 11.4s | — |
| 122 mm M62-T2 (ST-I) | 9 | — | — | 12.7s | — |
How ST-I compares to its peers
There are 60 tier 9 heavy tanks in WoT, including the ST-I. Its 1600 HP places it in the top 20% for hit points among same-tier heavy tanks (peer average: 1521). Frontal hull armor of 150mm ranks in the top 49% for the class (peer average: 153mm). Top forward speed of 40 km/h is faster than 54% of peer vehicles in this tier and class.
Direct comparisons
- ST-I vs 50TP — tier 9 heavy tank from Poland
- ST-I vs AE Phase I — tier 9 heavy tank from USA
- ST-I vs AMX 50 120 — tier 9 heavy tank from France
- ST-I vs AMX M4 51 FL — tier 9 heavy tank from France
- See full tier 9 heavy tank tier list — all 60 vehicles ranked
About this vehicle
The project was developed at Factory No. 92 in 1945. The design featured the Object 701 (IS-4) hull, but different transmission and suspension. The tank turret was developed from scratch. Existed only in blueprints.
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See Dolphin browser →Frequently asked
What tier is the ST-I in WoT?
The ST-I is a tier 9 heavy tank from USSR.
Is the ST-I a premium tank?
No — the ST-I is a researchable tech-tree vehicle, not a premium tank.
What's the top speed of the ST-I?
40 km/h forward, 13 km/h reverse.
How much armor does the ST-I have?
Hull armor: 150mm front, 140mm side, 100mm rear.