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| − | {{Specs-Card
| + | [[Category:Garage images]] |
| − | |code = ussr_is_6
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| − | |store = 5560
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| − | }}
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| − | | |
| − | == Description ==
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| − | <!--''In the description, the first part needs to be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert the screenshot of the vehicle. If the novice player does not remember the vehicle by name, they will immediately understand what kind of vehicle it is talking about.''-->
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| − | [[File:GarageImage_IS-6.jpg|420px|thumb|left]] | |
| − | {{break}}
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| − | The '''IS-6''' is a gift Rank IV Soviet heavy tank with a battle rating of 7.3. It was introduced in [[Update 1.67 "Assault"]]. This is one of the most dreaded tanks of its BR spread since it features a good canon and awesome mobility packed inside an heavily sloped thick armor that most APHE shells cannot penetrate. Use this tank in any role and situation, it will surely find its place on the battlefield.
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| − | | |
| − | '''Gun'''<br>
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| − | The IS-6 features an upgraded version of the [[122 mm gun D-25|D-25T]] gun found on other IS series variants, the D-30T. Though identical ballistically, it provides a much faster reload, with the IS-6 having a default reload rate only 0.5 seconds longer than the [[T-10M]]. The IS-6 uses the same ammo load as the [[IS-2]] with the best shell being the BR-471B, which means the tank will have trouble against some heavies it may encounter from lacking penetration. In addition, the IS-6 does not have access to the BR-471D, which is usable on the IS-3, also at 7.3 rating.
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| − | | |
| − | '''Mobility'''<br>
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| − | If used well, the IS-6 can get into position as fast as a T-54. It is certainly one of the fastest late IS-series tanks. It reaches 44.3 km/h (27.5 mph), the top speed in RB, with ease and has a reverse speed of 16.1 km/h (10 mph).
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| − | | |
| − | '''Armour'''<br>
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| − | 100 mm sloped at more or less 60° on all sides provide this vehicle with a reputation to be a ''ricochet master''. Firing on the hull from almost any angle will only result in a glancing shot. The only weak spot being the lower sides of the hull and turret sides and rear, the only way to reliably penetrate it is to get a shot from the side. An attentive player that never shows the sides is an invincible opponent. However, be aware of your frontal armor, as the extremely angled turret armor encasing the cannon breech can create a shot trap and ricochet the shell into the driver's area. This will likely result in your ammo exploding. Be wary when facing any opponent. The left hand side of the turret mantlet is also a small weakspot, hard to hit but devastating if you take a shot there. A shot to the this part of the mantlet will destroy the cannon breach as well as killing both the gunner and commander, and it also has a chance to detonate ammo if there is any in the back of the turret.
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| − | | |
| − | == General info ==
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| − | === Survivability and armour ===
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| − | <!--''Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpfull for survival in combat?''
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| − | | |
| − | ''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
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| − | '''Armour type:'''
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| − | * Rolled homogeneous armour (Hull, Turret roof)
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| − | * Cast homogeneous armour (Turret, Cupola)
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| − | {| class="wikitable" style="text-align:center"
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| − | |align="center" colspan="6"| '''Tank Armour Table'''
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| − | |-
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| − | ! Armour !! Front !! Sides !! Rear !! Roof
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| − | |-
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| − | | Hull || 100 mm (62-65°) ''Front glacis'' <br> 120 mm (53°) ''Lower glacis'' <br> 100 mm (65°) ''Driver's port'' || 120 mm (45°) ''Top'' <br> 100 + 10 mm ''Bottom'' || 60-75 mm (60°) ''Top'' <br> 60 mm (30°) ''Bottom'' || 20 mm
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| − | |-
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| − | | Turret || 150 mm (6-45°) ''Turret front'' <br> 100-200 + 50 mm (1-76°) ''Gun mantlet'' || 150 mm (7-51°) || 100 mm (5-50°) || 30 mm
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| − | |-
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| − | ! Armour !! Sides !! Roof
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| − | |-
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| − | | Cupola || 100 mm || 30 mm
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| − | |-
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| − | |}
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| − | '''Notes:'''
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| − | *Suspension wheels are 20 mm thick while tracks are 30 mm thick. Torsion bar connectors by the wheels are 60 mm thick.
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| − | *Spaced armour plates are placed on the sides, giving an additional 10 mm of side armour.
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| − | | |
| − | From the front, only high-end rounds (HEAT-FS, HESH, APFSDS) can penetrate the IS-6. Otherwise, flank it since its lower side armour is unangled behind the tracks. In a close to medium range fight, if the IS-6 is static and facing you, try to shoot its right side turret cupola, a penetrating APHE shell may kill the commander and gunner, disabling the tank (some large calibre rounds can even knock out the loader and/or driver, resulting in a one-shot kill). This strategy is unapplicable with rounds that don't have HE filler.
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| − | | |
| − | Another weak spot is the left side of the mantlet which has the optics in it. This part of the armour is thin enough that most shells at the BR can penetrate it, and in doing do, kill the commander and gunner and destroy the cannon breach. If you are lucky and the IS-6 has ammo in the back of its turret, there is a chance to detonate it as well for a one shot kill.
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| − | | |
| − | If you happen to flank an IS-6, take the time to aim since half of its side is covered by its dreaded armour. A missed shot will alert the IS-6 player, withdrawing with its fast speed from sight before another shot could be landed. Turret sides and back can ricochet rounds as well, so keep the hull as a priority target.
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| − | | |
| − | If encountering this foe from its back, keep in mind to aim for the middle of the engine deck since plates on both sides are as though as their frontal counterparts. If confident, go for the kill and aim turret back.
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| − | | |
| − | Any round penetrating the crew compartement leads to an ammo rack kill most of the time since this tank's interior is filled with ammo all over the place.
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| − | | |
| − | === Mobility ===
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| − | <!--''Write about the mobility of the ground vehicle. Estimate the specific power and maneuverability as well as the maximum speed forward and backward.''-->
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| − | {| class="wikitable" style="text-align:center"
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| − | |-
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| − | !colspan="3" | Mobility characteristic
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| − | |-
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| − | ! Weight (tons)
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| − | !colspan="1" | Add-on Armor<br>weight (tons)
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| − | !colspan="1" | Max speed (km/h)
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| − | |-
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| − | |rowspan="2" | 51.1 || colspan="1" rowspan="2" | N/A || colspan="1" | 47 (AB)
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| − | |-
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| − | |44 (RB/SB)
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| − | |-
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| − | !colspan="3" | Engine power (horsepower)
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| − | |-
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| − | !colspan="1" | Mode
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| − | !Stock
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| − | !Upgraded
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| − | |-
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| − | |''Arcade''
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| − | |904
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| − | |1,113
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| − | |-
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| − | |''Realistic/Simulator''
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| − | |619
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| − | |700
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| − | |-
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| − | !colspan="3" | Power-to-weight ratio (hp/ton)
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| − | |-
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| − | !colspan="1" | Mode
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| − | !Stock
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| − | !Upgraded
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| − | |-
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| − | |''Arcade''
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| − | |17.69
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| − | |21.78
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| − | |-
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| − | |''Realistic/Simulator''
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| − | |12.11
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| − | |13.7
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| − | |-
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| − | |}
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| − | | |
| − | == Armaments ==
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| − | === Main armament ===
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| − | <!--''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibilty of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.''-->
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| − | {{main|D-30T (122 mm)}}
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| − | | |
| − | {| class="wikitable" style="text-align:center"
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| − | |-
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| − | ! colspan="6" | [[D-30T (122 mm)|122 mm D-30T]]
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| − | |-
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| − | ! colspan="3" rowspan="1" style="width:5em" |Capacity
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| − | ! rowspan="1" | Vertical <br> guidance
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| − | ! rowspan="1" | Horizontal <br> guidance
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| − | ! rowspan="1" | Stabilizer
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| − | |-
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| − | | colspan="3" | 30 || -3°/+20° || ±180° || N/A
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| − | |-
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| − | ! colspan="6" | Turret rotation speed (°/s)
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| − | |-
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| − | ! style="width:4em" |Mode
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| − | ! style="width:4em" |Stock
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| − | ! style="width:4em" |Upgraded
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| − | ! style="width:4em" |Prior + Full crew
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| − | ! style="width:4em" |Prior + Expert qualif.
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| − | ! style="width:4em" |Prior + Ace qualif.
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| − | |-
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| − | | ''Arcade'' || 8.30 || 11.50 || __.__ || __.__ || __.__
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| − | |-
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| − | | ''Realistic'' || 8.30 || 9.80 || __.__ || __.__ || __.__
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| − | |-
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| − | ! colspan="4" | Reloading rate (seconds)
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| − | |-
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| − | ! colspan="1" style="width:4em" |Stock
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| − | ! colspan="1" style="width:4em" |Prior + Full crew
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| − | ! colspan="1" style="width:4em" |Prior + Expert qualif.
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| − | ! colspan="1" style="width:4em" |Prior + Ace qualif.
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| − | |-
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| − | | 20.50 || __.__ || __.__ || __.__
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| − | |-
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| − | |}
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| − | | |
| − | ===== Ammunition =====
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| − | {| class="wikitable sortable" style="text-align:center" width="100%"
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| − | ! colspan="8" | Penetration statistics
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| − | |-
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| − | ! rowspan="2" data-sort-type="text" | Ammunition
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| − | ! rowspan="2" class="unsortable" | Type of <br /> warhead
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| − | ! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 90°'''
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| − | |-
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| − | ! 10m
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| − | ! 100m
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| − | ! 500m
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| − | ! 1000m
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| − | ! 1500m
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| − | ! 2000m
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| − | |-
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| − | | BR-471 || APHE || 200 || 196 || 179 || 158 || 141 || 125
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| − | |-
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| − | | BR-471B || APHEBC || 207 || 201 || 183 || 162 || 144 || 129
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| − | |-
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| − | | OF-471 || HE || 36 || 36 || 36 || 36 || 36 || 36
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| − | |-
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| − | |}
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| − | {| class="wikitable sortable" style="text-align:center" width="100%"
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| − | ! colspan="11" | Shell details
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| − | |-
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| − | ! rowspan="2" data-sort-type="text" | Ammunition
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| − | ! rowspan="2" class="unsortable" | Type of <br /> warhead
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| − | ! rowspan="2" |Velocity <br /> in m/s
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| − | ! rowspan="2" |Projectile<br />Mass in kg
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| − | ! rowspan="2" | ''Fuse delay''
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| − | ''in m:''
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| − | ! rowspan="2" | ''Fuse sensitivity''
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| − | ''in mm:''
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| − | ! rowspan="2" | ''Explosive Mass in g<br /> (TNT equivalent):''
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| − | ! rowspan="2" | ''Normalization At 30° <br> from horizontal:''
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| − | ! colspan="3" | ''Ricochet:''
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| − | |-
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| − | ! 0%
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| − | ! 50%
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| − | ! 100%
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| − | |-
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| − | | BR-471 || APHE || 795 || 25 || 1.2 || 15 || 272 || -1° || 47° || 60° || 65°
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| − | |-
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| − | | BR-471B || APHEBC || 800 || 25 || 1.2 || 15 || 272 || +4° || 48° || 63° || 71°
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| − | |-
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| − | | OF-471 || HE || 800 || 25 || 0.1 || 0.1 || 3,600 || +0° || 79° || 80° || 81°
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| − | |-
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| − | |}
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| − | | |
| − | ===== [[Ammo racks|Ammo racks]] =====
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| − | [[File:Ammoracks_IS-6.png|right|thumbnail|x250px|[[Ammo racks|Ammo racks]] of the IS-6.]]
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| − | {| class="wikitable sortable" style="text-align:center"
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| − | |-
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| − | ! class="wikitable unsortable" |Full<br /> ammo
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| − | ! class="wikitable unsortable" |Ammo<br/>Part
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| − | ! class="wikitable unsortable" |1st<br /> rack empty
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| − | ! class="wikitable unsortable" |2nd<br /> rack empty
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| − | ! class="wikitable unsortable" |3rd<br /> rack empty
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| − | ! class="wikitable unsortable" |4th<br /> rack empty
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| − | ! class="wikitable unsortable" |5th<br /> rack empty
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| − | ! class="wikitable unsortable" |6th<br /> rack empty
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| − | ! class="wikitable unsortable" |7th<br /> rack empty
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| − | ! class="wikitable unsortable" |Visual<br /> discrepancy
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| − | |-
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| − | || '''30''' || style="text-align:right" | ''Projectiles''<br />''Propellants'' || 17 ''(+13)''<br />25 ''(+5)'' || 13 ''(+17)''<br />19 ''(+11)'' || 9 ''(+21)''<br />13 ''(+17)'' || 7 ''(+23)''<br />7 ''(+23)'' || 5 ''(+25)''<br />1 ''(+27)'' || 3 ''(+27)''<br /> || 1 ''(+29)''<br /> || style="text-align:left" | No
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| − | |-
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| − | |}
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| − | | |
| − | Turret empty: 13 (+17)
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| − | | |
| − | === Machine guns ===
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| − | <!--''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft, but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.''-->
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| − | {{main|DShK (12.7 mm)|DT (7.62 mm)}}
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| − | | |
| − | {| class="wikitable" style="text-align:center"
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| − | |-
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| − | ! colspan="7" | [[DShK (12.7 mm)|12.7 mm DShK]]
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| − | |-
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| − | ! colspan="7" | ''Pintle mount''
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| − | |-
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| − | ! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
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| − | ! rowspan="1" | Fire rate <br> (shots/minute)
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| − | ! rowspan="1" | Vertical <br> guidance
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| − | ! rowspan="1" | Horizontal <br> guidance
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| − | |-
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| − | | colspan="4" | 300 (50) || 600 || -4°/+85° || ±180°
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| − | |-
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| − | |}
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| − | {| class="wikitable" style="text-align:center"
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| − | |-
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| − | ! colspan="7" | [[DT (7.62 mm)|7.62 mm DT]]
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| − | |-
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| − | ! colspan="7" | ''Coaxial mount''
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| − | |-
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| − | ! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
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| − | ! rowspan="1" | Fire rate <br> (shots/minute)
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| − | ! rowspan="1" | Vertical <br> guidance
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| − | ! rowspan="1" | Horizontal <br> guidance
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| − | |-
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| − | | colspan="4" | 2,000 (63) || 600 || N/A || N/A
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| − | |-
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| − | |}
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| − | | |
| − | == Usage in the battles ==
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| − | <!--''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''-->
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| − | | |
| − | === Pros and cons ===
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| − | <!--''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Do not use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they have a substitution in the form of softer "inadequate", "effective".''-->
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| − | '''Pros:'''
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| − | * Reload rate considerably faster than usual 122 mm for its BR, default is only half a second slower than the T-10M
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| − | * 12.7 mm DShK allows for defence against aircraft and lightly-armoured vehicles
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| − | * Excellent 100 mm sloping armour on front and sides
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| − | * Sleek turret design makes it a smaller target
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| − | * Lower glacis is thicker than the upper glacis (120 mm vs 100 mm), though not as sloped
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| − | * Suspension wheels, torsion bars, and tracks allow for better protection on lower side hull
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| − | * Agile despite its weight and heavy armour
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| − | * 150 mm gun mantlet cannot be penetrated by most German guns, due to its 50 mm spaced armour (cannot be normally seen in hangar)
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| − | * Good reverse speed
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| − | * Premium vehicle bonuses
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| − | * Very small weak spots at long distances
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| − | * Optics and MG can stop most shrapnel from killing crew and damaging gun breach, which benefits even more from the 50 mm spaced plate
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| − | '''Cons:'''
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| − | * Inadequate ammunition against some upper tier vehicles such as [[Pz.Kpfw. Maus|Maus]]
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| − | * Very poor gun depression due to sleek turret design
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| − | * Ammunition is strewn all over the hull fighting compartment
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| − | * Its sloped armour can be defeated by high caliber British HESH and American HEAT-FS
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| − | * Speed goes down dramatically when turning
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| − | * Turret cupolas can be vulnerable at close ranges, if not over penetrated
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| − | * Gun mantlet design allows trap shots, but it is very random and rare
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| − | * Lower side armour is weak versus German guns at angles lower than 60°
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| − | * Low crew count for a heavy tank of 4 people
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| − | * Can be destroyed by artillery
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| − | | |
| − | == History ==
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| − | <!--''Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the <code>main</code> template. Be sure to include links to sources at the end of the article.''-->
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| − | The Chelyabinsk Kirov Plant Work (ChKZ) began planning a draft of a new heavy tank with an electrotransmission in 02 May 1944,<ref name=TankArchivesElectric>TankArchives 2014</ref> a drive system seen on the German [[Panzerjäger_Tiger_(P)_Ferdinand|Ferdinand/Elefant]]. The plant was officially ordered to begin work on June 08<ref name=T-10Appendix1>Kinnear 2017, Appendix One</ref> for two versions of the heavy tank, with emphasis of having significant advantages over the current [[IS-2 mod. 1944|IS-2 heavy tank]]. The heavy tank was designated as the '''IS-6''' and the two versions were the ''Object 252'' with a mechanical transmission and the ''Object 253'' with a electric transmission.<ref name=TankArchivesLaunch>TankArchives 2016, "Launch of the IS-6"</ref> Both prototypes were produced in the Fall of 1944 and were sent to be tested at the NIIBT testing grounds at Kubinka.
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| − | | |
| − | The two prototypes differed in other ways than just the transmission. Object 252 used the mechanical transmission from the [[IS-3]], with large road wheels with no track rollers for its torsion bar suspension.<ref name=BoldyrevTank>Boldyrev 2011</ref> Object 253 with its electric transmission used a suspension that looked similar to previous IS iterations with smaller road wheels and track rollers. The IS-6 prototypes failed to stay under the weight of the IS-2, being around 51.5 tons.<ref name=TankArchives257>TankArchives 2016, "Object 257"</ref> The 122 mm gun arming the IS-6 was the D-30 compared to the D-25T on the predecessors. The D-30 implements features the D-25's monobloc, the 100 mm D-10's breech and gas block, a two spring balancing mechanism, a lengthened D-25 mount, and a fume extractor. This gun was installed onto the IS-6 prototypes in December 1944.<ref name=TankArchivesD-30>TankArchives 2013</ref>
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| − | | |
| − | The IS-6 prototypes were tested alongside the ''Object 701'' (the prototype of the [[IS-4M|IS-4]]).<ref name=TankArchives257/> The IS-6 two prototypes proved disappointing, with the Object 253 electric transmission being too complex, expensive, and unreliable.<ref name=T-10Chapter1>Kinnear 2017, Chapter One</ref> The Object 252 mechanical transmission also suffered from reliability issues. Suspension problems also impacted the IS-6, with its speed dropping below the heavier Object 701. It was hoped that the electric transmission would help make the tank more maneuverable, but the heavy weight prohibited any vast improvements.<ref name=BoldyrevTank/> Overall, the IS-6 armour was deemed to not provide any improvements over existing designs, having only comparable armour, firepower, and mobility to the IS-2 and IS-3. In 1945, all work on the IS-6 ceased as work continued on the Object 701.<ref name=TankArchives257/>
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| − | | |
| − | == Media ==
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| − | ''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
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| − | | |
| − | ==References==
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| − | <references />
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| − | | |
| − | == Read also ==
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| − | [http://warthunder.com/en/news/4564-development-is-6-the-soviet-hammer-en/ [Devblog<nowiki>]</nowiki> IS-6: the Soviet Hammer]
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| − | | |
| − | == Sources ==
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| − | * Boldyrev, Eugeni. "Last Heavy Tanks of the USSR." The Russian Battlefield. N.p., 18 Sept. 2011. Web. 08 Jan. 2018. [http://english.battlefield.ru/tanks/10-heavy-tanks/21-last-heavy-tanks.html Website].
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| − | * Kinnear, James, and Stephen L. Sewell. ''Soviet T-10 Heavy Tank and Variants''. N.p.: Osprey Pub, 2017. Print.
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| − | * TankArchives. "D-30 Gun for the IS-6." Tank Archives. N.p., 19 Sept. 2013. Web. 08 Jan. 2018. [http://tankarchives.blogspot.com/2013/09/d-30-gun-for-is-6.html Website].
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| − | * TankArchives. "Electrical Transmission." Tank Archives. N.p., 02 June 2014. Web. 08 Jan. 2018. [http://tankarchives.blogspot.com/2014/06/electrical-transmission.html Website].
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| − | * TankArchives. "Object 257: The First IS-7." Tank Archives. N.p., 12 June 2016. Web. 08 Jan. 2018. [http://tankarchives.blogspot.com/2016/06/object-257-first-is-7.html Website].
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| − | * TankArchives. "Launch of the IS-6." Tank Archives. N.p., 20 Dec. 2016. Web. 08 Jan. 2018. [http://tankarchives.blogspot.com/2016/12/launch-of-is-6.html Website].
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| − | | |
| − | {{USSR heavy tanks}}
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| − | {{USSR premium ground vehicles}}
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