Loading tankAcquiring target…
SECTION 10 // ARMOR / VEHICLE PROFILEREF · O-I-EXPERIMENTAL
VCollector
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.
Configuration
Health
920
DPM
714
View range
360m
Speed
25km/h
Camo
1Terrible
Mark of Excellence requirementsCombined dmg + assist · NA · 2026-07-12
3 marks · 95%
2,174
2 marks · 85%
1,818
1 mark · 65%
1,243
A-01 · ARMOR SCHEMA
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.
Armor
20mm125mm
Hull
All 14 plates
Turret
All 8 plates
A-02 · SPECIFICATIONS
Specifications
Builds
Grade
Experimental
CrewShared perks
Weaponry
- 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
Mobility
- 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
Everything Else
- 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
Gun Constraints
360° traverse
Crew
Commander
Gunner
Driver
Radio Operator- Radio Operator
Loader
A-03 · MODULE RESEARCH
Module research
Guns
V
Stock
12 cm Short Barrel Gun
IV
2,350
7.5 cm Tank Gun Type 3
V
3,800
7.5 cm Tank Gun Type 5
Turrets
V
Stock
O-I Experimental
Radios
II
Stock
Type 94 Mk. 4 Otsu
IV
430
Type 94 Mk. 4 Hei
VI
1,400
Type 96 Mk. 4 Bo
Engines
VII
Stock
2x Kawasaki Type 98 V-12 (550)
VIII
27,500
2x Kawasaki Type 98 V-12 (600)
Tracks
IV
Stock
O-I Experimental
V
2,850
O-I Experimental Kai
A-04 · SERVER PERFORMANCE
Server performance
Aggregate stats from NA players over the last 30d
Avg WN8
4278
Super Unicum
Avg WNX
4521
Super Unicum
Win rate
52.2%
Average
DPG
1585
Frags
1.96
Spots
1.39
Survival
34.8%
Dmg taken
493
Hit rate
77.8%
Spot assist
108
Track assist
20
Defense
2.44
Avg XP
821
Aggregated from 4 tracked NA players · 23 battles. Coverage grows as more players are tracked.
MoE thresholds (combined dmg + assist)
65%1,243
85%1,818
95%2,174
Reach these combined damage (dealt + assist) values over a rolling window to earn marks of excellence.
A-05 · TOP OPERATORS
Top players
Highest performers in the O-I Experimental on NA
A-06 · VIDEO INTEL
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
A-07 · SIMILAR HULLS
Similar tanks
Closest matches by stat profile — pick the ones that fit your playstyle.
A-08 · CHANGELOG
Balance changelog
Patch-by-patch changes to this tank
No tracked balance changes
When this tank gets buffed or nerfed in a patch, the change shows up here.