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Supertest: M-VI-Y Tier IX American Heavy Changes

3 min read

Today the second iteration of the new upcoming American Tier IX American Heavy tank M-VI-Y has entered Supertest. The vehicle received slight improvements to the stock gun by replacing AP shells with APCR.

Changes relative to the first iteration of Supertest:

  • 90 mm Gun T208 (rifled)
    • Main ammo change from AP to APCR
      • Shell Velocity changed from 1 143 to 1250 m/s
      • Average penetration at 100m changed from 208 to 233 mm
      • Average penetration at 500m changed from 180 to 203 mm
    • Premium ammo changed from APCR to HEAT
      • Shell Velocity changed from 1570 to 900 m/s
      • Average penetration changed from 238 to 290 mm
    • HE ammo shell velocity changed from 1 143 to 700 m/s

All characteristics are with a crew trained to 100% and subject to change before the final release.







90 mm Gun T208 (rifled)
105 mm Gun T254 Y VI
120 mm American British Gun
Continental AOSI-1195-5 Y VI A
Continental AOSI-1195-5 Y VI B
105 mm Gun T254 Y VI120 mm American British Gun
Firepower - 466
Average Damage per Shot (HP) 320/320/420
Average Penetration (mm) 251/315/53
Rate of Fire (rounds/min) 7.54
Reload Time (s) 7.96
Gun Traverse Speed  (deg/s) 31.29
Gun Depression/Elevation Angles  (deg) -10/20
Aiming Time (s) 2.11
Dispersion at 100 m (m) 0.35
Average Damage per Minute  (HP/min) 2 413
Firepower - 379
Average Damage per Shot (HP) 400/400/515
Average Penetration (mm) 243/300/60
Rate of Fire (rounds/min) 5.49
Reload Time (s) 10.93
Gun Traverse Speed  (deg/s) 31.29
Gun Depression/Elevation Angles  (deg) -10/20
Aiming Time (s) 2.59
Dispersion at 100 m (m) 0.38
Average Damage per Minute  (HP/min) 2 196
Survivability - 459
Hit Points (HP) 1 800
Hull Armour (front/sides/rear mm) 165/89/38
Turret Armour (front/sides/rear mm) 330/102/51
Mobility - 447
Weight/Load Limit (t) 46/50
Engine Power (h.p.) 780
Specific Power (h.p./t) 16.96
Top Speed/Reverse Speed (km/h) 40/15
Traverse Speed (deg/s) 29.20
Concealment - 70
Concealment of Stationary Vehicle (%) 4.56/0.87
Concealment of Moving  Vehicle (%) 2.28/0.43
Spotting - 574
View Range (m) 390
Signal Range (m) 745
Firepower Hidden Stats
Dispersion moving 0.22
Dispersion tank traverse 0.22
Dispersion turret traverse 0.08
Dispersion after firing 4.00
Dispersion gun damaged Unknown
Mobility Hidden Stats
Hard Terrain Resistance 1.20
Medium Terrain Resistance 1.30
Soft  Terrain Resistance 2.40
Hard Terrain Traverse (deg/s) 27.74
Medium Terrain Traverse (deg/s) 25.61
Soft Terrain Traverse (deg/s) 13.87

A few other hidden stats that are not shared by Wargaming are the penalties you get with the new mechanics. Here are the currently hidden stats for these, and remember these are Supertest stats and might change in the future:

  • Suspension Repair Time
    • Main Track: 12.03 seconds
    • Reserve Track: 9.34 seconds
  • Penalty for one main track destroyed:
    • -25% maximum speed
    • -50% engine power
    • -50% suspension traverse speed
  • Penalty for both main tracks destroyed:
    • -50% maximum speed
    • -75% engine power
    • -75% suspension traverse speed
  • Penalty for repairing while on the move is 2 times bigger if speed is above 12km/h
  • The penalty is removed if the vehicle speed is less than 5 km/h
  • Hitpoints of the reserve track are 50% of the main tracks

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