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IX Object 257
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Object 257 U.S.S.R.

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A project of the heavy tank designated IS-7 that was developed in 1945. The vehicle was supposed to feature an electromechanical transmission. Development was discontinued at the documentation design stage. Existed only in blueprints.

Nation U.S.S.R. U.S.S.R.
Tier Tier IX
Type Heavy Tank Heavy Tank
Cost Credits 3,560,000 Experience 142,700
Role Breakthrough Heavy Tank Breakthrough Heavy Tank

Crew

Crew Member Commander

Commander

Radio Operator

Crew Member Driver
Crew Member Gunner
Crew Member Loader

Modules

VIII

Object 257

IX

V-2-54IS

VII

10RK

VIII

IS-3 (257)

IX

122 mm BL-9

IX

Object 257 Version 2

X

2x V-16 (1000)

IX

12RT

X

122 mm BL-13-1 A

X

R-113

IX

Object 257

Characteristics

Firepower

390 / 390 / 530 HP Damage
225 / 265 / 68 mm Armor Penetration
13.30 s Gun reload time
4.51 rounds/min Rate of Fire
1,759 HP/min Damage per Minute
3.10 s Aiming Time
0.40 m Dispersion at 100 m
40 pcs Ammo Capacity

Mobility

51.32 / 55 t Weight/Load Limit
700 hp Engine Power
13.64 hp/t Specific Power
50 km/h Top Speed
35 deg/s Traverse Speed
26 deg/s Turret Traverse Speed

Survivability

1,800 HP Hit Points
130 / 130 / 70 mm Hull Armor
249 / 110 / 70 mm Turret Armor
12.03 s Suspension repair time

Spotting

380 m View Range
440 m Signal Range

Characteristics are specified for vehicles with crews trained to 100%.

Tech Tree

IS-3 2,568,500 77,000 Heavy Tank VIII
Object 257 3,560,000 142,700 Heavy Tank IX
IS-7 6,100,000 191,500 Heavy Tank X
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