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VII IS
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IS U.S.S.R.

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The IS-1 (IS-85) heavy tank was a thorough modernization of the KV-1. The tank featured the 85-mm D-5T gun. The IS-1 entered mass production in October 1943, but work was discontinued at the beginning of 1944, as the IS-2 (IS-122) tank entered mass production in December 1943. A total of 107 vehicles were manufactured.

Nation U.S.S.R. U.S.S.R.
Tier Tier VII
Type Heavy Tank Heavy Tank
Cost Credits 1,424,000 Experience 49,480
Role Breakthrough Heavy Tank Breakthrough Heavy Tank

Featured in

Greased Lightning

Crew

Crew Member Commander

Commander

Radio Operator

Crew Member Gunner
Crew Member Driver
Crew Member Loader

Modules

VI

IS-1

VII

V-2IS

VII

10RK

VI

IS-85

VI

85 mm D-5T

VII

IS-2M

IX

V-2-54IS

IX

12RT

VII

IS-122

VII

100 mm D10T

VII

85 mm D5T-85BM

VII

122 mm D-2-5T

VIII

122 mm D-25T

Characteristics

Firepower

160 / 160 / 280 HP Damage
120 / 161 / 43 mm Armor Penetration
4.90 s Gun reload time
12.24 rounds/min Rate of Fire
1,959 HP/min Damage per Minute
2.90 s Aiming Time
0.46 m Dispersion at 100 m
68 pcs Ammo Capacity

Mobility

44.88 / 47.50 t Weight/Load Limit
600 hp Engine Power
13.37 hp/t Specific Power
34 km/h Top Speed
32 deg/s Traverse Speed
38 deg/s Turret Traverse Speed

Survivability

1,130 HP Hit Points
120 / 90 / 60 mm Hull Armor
100 / 90 / 90 mm Turret Armor
12.03 s Suspension repair time

Spotting

330 m View Range
440 m Signal Range

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

Tech Tree

KV-1S 910,000 25,650 Heavy Tank VI
IS 1,424,000 49,480 Heavy Tank VII
IS-3 2,568,500 77,000 Heavy Tank VIII
IS-M 2,550,000 58,000 Heavy Tank VIII
Asia (English)
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