O-I Experimental
Japan·
Heavy TankDevelopment of this superheavy tank was initiated by Colonel Iwakuro from the Army Ministry of Japan. The project was carried out by the Mitsubishi company, therefore the vehicle became known as the Mi-To. In the army, the tank was designated the O-I. Details of the project are largely unknown.
Armor thicknessMeasured
Nominal plate thickness straight from the game client. Click any plate to highlight it on the 3D model and focus the camera on it.
Hull
All 14 plates
Turret
All 8 plates
Specifications
- DPM
- 714
- Damage
- 125
- Penetration
- 124 mm
- … at 500m
- 55 mm
- Reload time
- 10.50 s
- Rate of fire
- 5.71/min
- Aim time
- 2.30 s
- Dispersion
- 0.390 m
- … moving
- 0.200
- … tank traverse
- 0.220
- … turret traverse
- 0.180
- … after firing
- 4.0
- Damage vs. modules
- 165
- Caliber
- 75.0 mm
- Shell velocity
- 290 m/s
- Max range
- 720 m
- Ammo capacity
- 240
- Potential damage
- 30,000
- Shell cost
- 130 cr
- Top speed
- 25 km/h
- Reverse speed
- 12 km/h
- Power/weight
- 12.00 hp/t
- Tank traverse
- 22.0 °/s
- Turret traverse
- 20.0 °/s
- Effective top speed
- … hard
- 25.0 km/h
- … medium
- 25.0 km/h
- … soft
- 25.0 km/h
- Effective traverse
- … hard
- 22.0 °/s
- … medium
- 20.0 °/s
- … soft
- 12.2 °/s
- Gun elevation
- 20 °
- Gun depression
- 10 °
- Gun traverse range
- 360°
- Terrain resistance
- … hard
- 1.00
- … medium
- 1.10
- … soft
- 1.80
- Hull armor
- 125 / 70 / 70
- Turret armor
- 125 / 75 / 75
- Health
- 920
- Engine health
- 360
- … repaired
- 180
- Track health
- 190
- … repaired
- 145
- … repair time
- 8.00 s
- Ammo rack health
- 200
- … repaired
- 135
- Fuel tank health
- 200
- … repaired
- 70
- Total weight
- 99,970 kg
- Stationary camo
- 1.90 / 0.11%
- Moving camo
- 0.95 / 0.06%
- View range
- 360 m
- Fire chance
- 20%
- Tank cost
- 445,000 cr
360° traverse
Commander
Gunner
Driver
Radio Operator- Radio Operator
Loader
Module research
Server performance
Aggregate stats from NA players over the last 30d
Aggregated from 562 tracked NA players · 2,854 battles. Coverage grows as more players are tracked.
Reach these combined damage (dealt + assist) values over a rolling window to earn marks of excellence.
Performance over time
Daily NA 30-day aggregates — how this tank trends as patches and meta shift
Population spread
How NA players actually perform in this tank (30-day window)
Top players
Highest performers in the O-I Experimental on NA
Video reviews
Curated reviews, replays, and guides from veteran players
17:30replayWorld of Tanks O-I Experimental WoT Replay - 6 Kills 2K DMG(Patch 1.4.0)
10:09replayWorld of Tanks O-I Experimental WoT Replay - 10 Kills 2.1K DMG(Patch 1.4.0)
15:07replayO-I Experimental • 5.2K Damage 11 Frags - KOLOBANOV • WoT Gameplay
14:59replayWOT - O-I EXP. - 11 KILLS 5.2K DAMAGE KOLOBANOV'S & ACE TANKER - World Of Tanks
22:08reviewSlowly but surely: O-I Exp. | World of Tanks
9:50replayO-I Experimental • 14 kills • 1 VS 7 • World of Tanks Gameplay
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Balance changelog
What changed for this tank between game versions
No tracked balance changes
When this tank gets buffed or nerfed in a patch, the change shows up here.