Difference between revisions of "IS-2 (1944)"

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{{Specs-Card|code=ussr_is_2_1944}}
 
{{Specs-Card|code=ussr_is_2_1944}}
 +
{{About
 +
| about = heavy tank '''{{PAGENAME}}'''
 +
| other
 +
| usage-1 = the early version
 +
| usage-2 = the premium version
 +
| link-1 = IS-2
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| link-2 = IS-2 "Revenge"
 +
}}
 +
== Description ==
 +
<!-- ''In the description, the first part should 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 a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 +
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
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{{break}}
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The '''{{Specs|name}}''' is a Rank {{Specs|rank}} Russian heavy tank {{Battle-rating}}. It was introduced during the Closed Beta Test for Ground Forces before [[Update 1.41]].
  
== Description ==
+
The IS-2 mod. 1944 was created after the initial disadvantages of the previous [[IS-2]] model (IS-2 mod. 1943), being vulnerable against the 75mm guns of the German [[StuG (Disambiguation)|StuGs]] and [[Pz.IV (Disambiguation)|Panzer IVs]] due to the nearly flat frontal armor. The Soviet high command then decided to produce another version of the IS-2 with a heavily sloped armor plate, generally known as the IS-2 mod. 1944. It was used successfully on the Eastern front until the end of the war and is remembered as one of the mightiest tanks of World War 2.
''The IS-2 mod. 1944 was created after to the initial failure of the previous IS-2 modell (IS-2 1943) against even the weak 75mm guns of the german StuGs and Panzer IVs, due to the nearly flat frontal armor. The soviet highcommand then decided to produce another version of the IS-2 with an heavily sloped armorplate, generally known as the IS-2 mod. 1944. It was used successfully on the eastern front, till the end of the war and is remembered as one of the mightiest tanks of ww2.  
+
 
In the game, the IS-2 mod. 1944 sits at a BR of 6.3, wich is 0.6 higher, than the first IS-2. It now features a mighty frontal plate, sloped at 61° backwards and also a 12.7mm DShK machinegun on top for AA-defence. It has the same gun as its predecessor, but even at BR 6.3, it is one of the most destructable guns in the game, with high pen and devastating postpen damage. ''
+
In the game, the IS-2 mod. 1944 sits at a BR of 6.3, which is 0.6 higher than the first [[IS-2]]. It now features a mighty frontal plate, sloped at 61° backwards and also a 12.7 mm DShK machine gun on top for AA-defense. It has the same gun as its predecessor, but even at BR 6.3, it is one of the most destructive guns in the game, with high penetration and devastating post-penetration damage.
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
''The armor, while having a nigh impenetrable frontplate and decent a turret, has many weakspots.  
+
<!-- ''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 helpful for survival in combat?''
First there is the right part of the turret, because while on the left side, the gunmantlet is connecting with the turretarmor, there is no mantlet on the righthandside, so it has just half the thickness of the left side.
 
Next we have the lowerglacis, wich is a very prominent target, without pretty much any armor for its BR (~130mm effective thickness). Shots of a german 88mm or an american 90mm will wreak your IS-2 1944.
 
Last but not least, we have the drivers hatch. While being not as prominent as the first two mentioned, many experienced players will go for a shot right here, when you are hulldown. With arround 120mm effective thickness, it is really easy to penetrate even with small guns, like the american 76mm and has devastating effect on your tank.
 
  
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''
+
''If necessary use a visual template to indicate the most secure and weak zones of the armour.'' -->
 +
The armor, while having a nigh impenetrable frontplate and a decent turret, has many weakspots.
 +
 
 +
First there is the right part of the turret, because while on the left side the gun mantlet is connected to the turret armor, there is no mantlet on the right-hand side, so it has just half the thickness of the left side.
 +
 
 +
Next we have the lower glacis, which is a very prominent target, with very little armor for its BR (~130mm effective thickness). Shots of a German 88 mm or an American 90 mm will wreak your IS-2 1944.
 +
 
 +
Last but not least, we have the driver's hatch. While not as prominent as the first two mentioned, many experienced players will go for a shot right here, when you are hull-down. With around 120 mm effective thickness, it is really easy to penetrate even with small guns such as the American 76 mm, and has devastating effect on your tank.
  
 
=== Mobility ===
 
=== Mobility ===
''Write about the mobility of the ground vehicle. Estimate the specific power and maneuverability as well as the maximum speed forward and backward.''
+
''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forward and backward.''
  
 
== Armaments ==
 
== Armaments ==
 
=== Main armament ===
 
=== Main armament ===
''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.''
+
''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 flexibility 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.''
  
 
=== Additional armament ===
 
=== Additional armament ===
Line 27: Line 44:
 
''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.''
 
''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.''
  
== Usage in the battles ==
+
== Usage in battles ==
''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).''
+
''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 instead 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).''
  
 
=== Pros and cons ===
 
=== Pros and cons ===
''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".''
+
''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they can be substituted with softer forms such as "inadequate" and "effective".''
  
 
'''Pros:'''
 
'''Pros:'''
*Great 122mm D-25T gun, featuring good penetration and devastating postpen damage.
+
* Great 122 mm D-25T gun, featuring good penetration and devastating post-penetration damage.
*Extremly strong upper glacis, with about 230mm effective thickness, sloped at 61°
+
* Extremely strong upper glacis, with about 230 mm effective thickness, sloped at 61°
*Superb reverse speed (18 kph)
+
* Superb reverse speed (18 kph)
*Decently mobile, for a tank of its seize
+
* Decently mobile for a tank of its size
*12.7mm machinegun on top against planes
+
* 12.7 mm machine gun on top against planes
*Decent turretarmor on the left side
+
* Decent turret armor on the left side
*Trolish armor, can bounce some unexpected shells
+
* Trollish armor, can bounce some unexpected shells
*AAA safe from pretty much everywhere
+
* Playing the tank while stock isn't bad
*Convenient stock grind
 
  
 
'''Cons:'''
 
'''Cons:'''
*Long reload for its maingun (27 seconds without crew)
+
* Long reload for its main gun (27 seconds without crew skills)
*Many weakspots (Drivershatch, lowerglacis, right side of the turret
+
* Many weakspots (Driver's hatch, lower glacis, right side of the turret)
*Only 4 crewmembers
+
* Only 4 crew members
*Worse optics than its predecessor  
+
* Worse optics than its predecessor
*Can't sidescrape, due to its cheeks
+
* Can't sidescrape, due to its cheeks
*Ammocapacity for the MG on top is low, only 250 rounds
+
* Ammo capacity for the MG on top is low, only 250 rounds
 +
 
 
== History ==
 
== History ==
''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.''
+
<!--''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 the article about the vehicle and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></nowiki></code>, as well as adding them at the end of the article. This section may also include the vehicle's devblog entry (if applicable) and the ingame encyclopedia description (under <code><nowiki>=== Encyclopedia Info ===</nowiki></code>, also if applicable).''-->
 +
===Development===
 +
Effort began on another heavy tank after the [[IS-1]]'s 85 mm gun no longer had a firepower advantage after the standard [[T-34 (1942)|T-34]] medium tank was upgraded with the same gun into the [[T-34-85]]. Due to that, the IS-1 was discontinued in January 1944 with about 107 units produced.<ref name="ISZaloga">Zaloga, Steven J. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> Those in storage still awaited upgrade to become a more powerful heavy tank.
 +
 
 +
In late 1943, the upgrade of the IS tank began and the choices available were rounded down to two weapons, the 122 mm A-19 gun and the 100 mm D-10 gun. Both guns had their advantages and disadvantages in their specifications, the 100 mm D-10 had a much better armour penetration capabilities and uses a single-piece ammunition, the 122 mm A-19 has a better high-explosive round and used a two-piece ammunition In the end, the 122 mm A-19 (adopted as the D-25T) gun was chosen as the gun of the new IS tank due to larger supply of the gun available for use (the D-10 was a newly produced gun) and the better high-explosive round available. The better high-explosive round is due to the heavy tank's specification as a "breakthrough" tank than a anti-tank role, so it was meant to fight fortifications more than against armour. Nevertheless, against armour, the 122 mm gun proved a very lethal cannon against armour, having the capacity to knock out any German tanks fielded in the war, even the [[Tiger II (H)|Tiger II]], though the ease of knocking them out vary from their armour protection.
 +
 
 +
The 122 mm gun's two-piece ammunition was perhaps the gun's worst drawback, this along with the heavy shells and charges that it uses causes reloading speed to only be one and a half rounds per minute maximum. Even after some modernization to the gun including a semi-automatic breech, the firing rate only increased to two to three rounds per minute. Another drawback of the gun was the size of the ammunition that the 122 mm gun uses, the IS tank interior could only hold 28 of such ammunition, which restricts the time the IS could last in battle before requiring a resupply. In battle, the usual distribution of the shells is 20 high-explosive and 8 armour-piercing rounds.
 +
 
 +
The finished IS tank with the 122 mm gun, first called the ''IS-122'', was finally approved and renamed the '''IS-2''' heavy tank, some were rearmed IS-1s from the factory with the 122 mm gun. The IS-2 tank, like the IS-1, was superior to the previous [[KV-1 (ZiS-5)|KV-1]] tanks used in the Red Army. Production of the IS-2 started in October or November 1943 and by the end of World War II when production ended, a total of 3,854 units were produced.
 +
 
 +
===Design===
 +
The IS-2 tank hull was similar to the IS-1 tank, but the turret was modified to accommodate the larger 122 mm D-25T gun. The suspension was a torsion-bar suspension system and the tank was powered by a diesel V2-IC engine. The drivetrain and the engine were taken from the KV-1 tank, yet was considerably more mobile. The armour on the IS-2 was a 120 mm thick front plate sloped at 60 degrees with a small step in the front for the driver's hatch. This [[IS-2|"early version"]], developed from the KV-13 design, was produced from the initial production lines until some time in late 1944, where a '''[[IS-2 (1944)|IS-2 mod. 1944]]''' version was modified with the front plate now a single sloped 120 mm plate at 60 degrees with no interruptions in order to eliminate shot traps and weaknesses in the armour design. Other design changes when the IS-2 was upgraded to the 1944 model was a stronger gun mount, wider mantlet, and an addition of a Dshk machine gun on the turret. The formidable armour of the IS-2 is able to withstand the 88 mm shells from the [[Pz.Kpfw. VI Ausf. H1|Tiger I]] at 1,000 meters out, yet the whole tank weighs less than the Panther at only 46 tons. Despite its construction, the IS-2 was still quite crude in quality and can have signs of being hastily built from the factories. This did not affect its battlefield performance greatly and the crude construction is merely a side effect of the fast production of the tanks to fill battlefield demands.
 +
 
 +
===Combat usage===
 +
The IS-2 first saw action in early 1944. The IS-2 was organized in heavy tank regiments, each with 21 tanks. Their role was to spearhead the offensives launched at each sector, breaking through enemy emplacements and supporting the infantry by destroying enemy fortifications, they were not meant to exploit breakthroughs and this role was given to the lighter [[T-34-85|T-34]] tanks. Their first reported action was in April 1944 in the 11th Special Guards Heavy Tank Regiment near Tarnopol, Ukraine. The IS-2 presented such a surprise to the Germans as no Soviet tanks before could engage with accurate fire from more than 3 kilometers away. A bigger shock was when they found out the 88 mm of the Tiger I couldn't adequately penetrate their armour. The IS-2 initial combat experience was limited due to the inexperienced crew and organization, but more and more IS-2 started to come in to reinforce the Soviet forces.<ref name="ISZaloga">Zaloga, Steven J. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref>
 +
 
 +
The IS-2's next great effort was in Operation Bagration in July 1944. By this time period, the heavy tank regiments were allocated to one for each tank corps. During Operation Bagration, the IS-2 combat effort contributed to the decimation of German Army Group Center. The IS-2 was able to deal with the troublesome German Panther and Tiger I tanks with ease. By December 1944, enough IS-2 was produced that the Soviets began outfitting them to Guards heavy tank brigades, consisting of 65 IS-2 tanks with other vehicles for support. Though the number of these brigades were still limited, they proved valuable in breaking through German lines, as used in January 1945 against the German in the Oder Offensive. It should be noted that despite having a role similar to the Tiger heavy tank battalions in the German service, they are produced in far greater numbers to enforce every tank corp with one heavy tank regiment that allowed even the IS-2 to overwhelm German defenses. The IS-2 continued to see combat service for the Red Army all the way to the Battle of Berlin and the end of World War II.<ref name="ISZaloga">Zaloga, Steven J. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> T
 +
 
 +
After World War II, the IS-2 production was replaced by the more heavily armoured [[IS-3]], but the IS-2 stayed in service up until 1982 due to modernization efforts on the IS-2. These modernized IS-2 were named the ''IS-2M'' and were done in the mid-1950s. These modernization efforts added external fuel tanks and stowage bins onto the hull, and protective skirts on the edges of the tracks. The IS-2 were finally placed into storage in 1990s and were kept in reserves or sold out as scrap metal.
 +
 
 +
Like most of Soviet Union's military hardware, the IS-2 was given out to the Warsaw Pact nations as supplies. The IS-2 was thus lent out to Poland, Czechoslovakia, Hungary, China, North Vietnam, and maybe North Korea. Later in 1960, a shipment of IS-2 was also sent to Cuba, these were converted into bunkers and coastal defenses as spare parts for the tank never made it to Cuba due to the US blockade imposed in 1962.
  
 
== Media ==
 
== Media ==
''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
+
<!--''Excellent additions to the article would be video guides, screenshots from the game, and photos.''-->
 +
'''Skins''' and camouflages for the IS-2 (mod.1944) from live.warthunder.com. They are filed under the terms [http://live.warthunder.com/feed/camouflages/?q=%23is_2_1944 #is_2_1944] and [http://live.warthunder.com/feed/camouflages/?q=%23is2_44 #is2_44].
 +
 
 +
==References==
 +
<references />
  
== Read also ==
+
== See also ==
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,''
+
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 
* ''reference to the series of the vehicles;''
 
* ''reference to the series of the vehicles;''
 
* ''links to approximate analogues of other nations and research trees.''
 
* ''links to approximate analogues of other nations and research trees.''
''ETC.''
 
  
== Sources ==
+
== External links ==
''Paste links to sources and external resources, such as:''
+
<!--''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
* ''other literature.''
+
* ''encyclopedia page on the tank;''
 +
* ''other literature.''-->
 +
* [https://warthunder.com/en/news/2824/current/ [Vehicle Profile<nowiki>]</nowiki> IS-2 Mod. 1944]
 +
 
 +
{{USSR heavy tanks}}

Revision as of 16:11, 17 March 2019

Rank VI USA | Premium | Golden Eagles
A-10A Thunderbolt (Early)
IS-2 (1944)
ussr_is_2_1944.png
IS-2 (1944)
AB RB SB
6.7 6.7 6.7
Class:
Research:63 000 Specs-Card-Exp.png
Purchase:200 000 Specs-Card-Lion.png
Show in game
This page is about the heavy tank IS-2 (1944). For the early version, see IS-2. For the premium version, see IS-2 "Revenge".

Description

GarageImage IS-2 (1944).jpg


The IS-2 (1944) is a Rank IV Russian heavy tank with a battle rating of 6.7 (AB/RB/SB). It was introduced during the Closed Beta Test for Ground Forces before Update 1.41.

The IS-2 mod. 1944 was created after the initial disadvantages of the previous IS-2 model (IS-2 mod. 1943), being vulnerable against the 75mm guns of the German StuGs and Panzer IVs due to the nearly flat frontal armor. The Soviet high command then decided to produce another version of the IS-2 with a heavily sloped armor plate, generally known as the IS-2 mod. 1944. It was used successfully on the Eastern front until the end of the war and is remembered as one of the mightiest tanks of World War 2.

In the game, the IS-2 mod. 1944 sits at a BR of 6.3, which is 0.6 higher than the first IS-2. It now features a mighty frontal plate, sloped at 61° backwards and also a 12.7 mm DShK machine gun on top for AA-defense. It has the same gun as its predecessor, but even at BR 6.3, it is one of the most destructive guns in the game, with high penetration and devastating post-penetration damage.

General info

Survivability and armour

The armor, while having a nigh impenetrable frontplate and a decent turret, has many weakspots.

First there is the right part of the turret, because while on the left side the gun mantlet is connected to the turret armor, there is no mantlet on the right-hand side, so it has just half the thickness of the left side.

Next we have the lower glacis, which is a very prominent target, with very little armor for its BR (~130mm effective thickness). Shots of a German 88 mm or an American 90 mm will wreak your IS-2 1944.

Last but not least, we have the driver's hatch. While not as prominent as the first two mentioned, many experienced players will go for a shot right here, when you are hull-down. With around 120 mm effective thickness, it is really easy to penetrate even with small guns such as the American 76 mm, and has devastating effect on your tank.

Mobility

Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forward and backward.

Armaments

Main armament

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 flexibility 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: {{main|Name of the weapon}}. 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.

Additional armament

Some tanks are armed with several guns in one or more turrets. Evaluate the additional weaponry and give advice on its use. Describe the ammunition available for additional weaponry. Give advice on how to use them and how to fill the ammunition storage. If there is no additional weaponry remove this subsection.

Machine guns

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.

Usage in battles

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 instead 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).

Pros and cons

Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they can be substituted with softer forms such as "inadequate" and "effective".

Pros:

  • Great 122 mm D-25T gun, featuring good penetration and devastating post-penetration damage.
  • Extremely strong upper glacis, with about 230 mm effective thickness, sloped at 61°
  • Superb reverse speed (18 kph)
  • Decently mobile for a tank of its size
  • 12.7 mm machine gun on top against planes
  • Decent turret armor on the left side
  • Trollish armor, can bounce some unexpected shells
  • Playing the tank while stock isn't bad

Cons:

  • Long reload for its main gun (27 seconds without crew skills)
  • Many weakspots (Driver's hatch, lower glacis, right side of the turret)
  • Only 4 crew members
  • Worse optics than its predecessor
  • Can't sidescrape, due to its cheeks
  • Ammo capacity for the MG on top is low, only 250 rounds

History

Development

Effort began on another heavy tank after the IS-1's 85 mm gun no longer had a firepower advantage after the standard T-34 medium tank was upgraded with the same gun into the T-34-85. Due to that, the IS-1 was discontinued in January 1944 with about 107 units produced.[1] Those in storage still awaited upgrade to become a more powerful heavy tank.

In late 1943, the upgrade of the IS tank began and the choices available were rounded down to two weapons, the 122 mm A-19 gun and the 100 mm D-10 gun. Both guns had their advantages and disadvantages in their specifications, the 100 mm D-10 had a much better armour penetration capabilities and uses a single-piece ammunition, the 122 mm A-19 has a better high-explosive round and used a two-piece ammunition In the end, the 122 mm A-19 (adopted as the D-25T) gun was chosen as the gun of the new IS tank due to larger supply of the gun available for use (the D-10 was a newly produced gun) and the better high-explosive round available. The better high-explosive round is due to the heavy tank's specification as a "breakthrough" tank than a anti-tank role, so it was meant to fight fortifications more than against armour. Nevertheless, against armour, the 122 mm gun proved a very lethal cannon against armour, having the capacity to knock out any German tanks fielded in the war, even the Tiger II, though the ease of knocking them out vary from their armour protection.

The 122 mm gun's two-piece ammunition was perhaps the gun's worst drawback, this along with the heavy shells and charges that it uses causes reloading speed to only be one and a half rounds per minute maximum. Even after some modernization to the gun including a semi-automatic breech, the firing rate only increased to two to three rounds per minute. Another drawback of the gun was the size of the ammunition that the 122 mm gun uses, the IS tank interior could only hold 28 of such ammunition, which restricts the time the IS could last in battle before requiring a resupply. In battle, the usual distribution of the shells is 20 high-explosive and 8 armour-piercing rounds.

The finished IS tank with the 122 mm gun, first called the IS-122, was finally approved and renamed the IS-2 heavy tank, some were rearmed IS-1s from the factory with the 122 mm gun. The IS-2 tank, like the IS-1, was superior to the previous KV-1 tanks used in the Red Army. Production of the IS-2 started in October or November 1943 and by the end of World War II when production ended, a total of 3,854 units were produced.

Design

The IS-2 tank hull was similar to the IS-1 tank, but the turret was modified to accommodate the larger 122 mm D-25T gun. The suspension was a torsion-bar suspension system and the tank was powered by a diesel V2-IC engine. The drivetrain and the engine were taken from the KV-1 tank, yet was considerably more mobile. The armour on the IS-2 was a 120 mm thick front plate sloped at 60 degrees with a small step in the front for the driver's hatch. This "early version", developed from the KV-13 design, was produced from the initial production lines until some time in late 1944, where a IS-2 mod. 1944 version was modified with the front plate now a single sloped 120 mm plate at 60 degrees with no interruptions in order to eliminate shot traps and weaknesses in the armour design. Other design changes when the IS-2 was upgraded to the 1944 model was a stronger gun mount, wider mantlet, and an addition of a Dshk machine gun on the turret. The formidable armour of the IS-2 is able to withstand the 88 mm shells from the Tiger I at 1,000 meters out, yet the whole tank weighs less than the Panther at only 46 tons. Despite its construction, the IS-2 was still quite crude in quality and can have signs of being hastily built from the factories. This did not affect its battlefield performance greatly and the crude construction is merely a side effect of the fast production of the tanks to fill battlefield demands.

Combat usage

The IS-2 first saw action in early 1944. The IS-2 was organized in heavy tank regiments, each with 21 tanks. Their role was to spearhead the offensives launched at each sector, breaking through enemy emplacements and supporting the infantry by destroying enemy fortifications, they were not meant to exploit breakthroughs and this role was given to the lighter T-34 tanks. Their first reported action was in April 1944 in the 11th Special Guards Heavy Tank Regiment near Tarnopol, Ukraine. The IS-2 presented such a surprise to the Germans as no Soviet tanks before could engage with accurate fire from more than 3 kilometers away. A bigger shock was when they found out the 88 mm of the Tiger I couldn't adequately penetrate their armour. The IS-2 initial combat experience was limited due to the inexperienced crew and organization, but more and more IS-2 started to come in to reinforce the Soviet forces.[1]

The IS-2's next great effort was in Operation Bagration in July 1944. By this time period, the heavy tank regiments were allocated to one for each tank corps. During Operation Bagration, the IS-2 combat effort contributed to the decimation of German Army Group Center. The IS-2 was able to deal with the troublesome German Panther and Tiger I tanks with ease. By December 1944, enough IS-2 was produced that the Soviets began outfitting them to Guards heavy tank brigades, consisting of 65 IS-2 tanks with other vehicles for support. Though the number of these brigades were still limited, they proved valuable in breaking through German lines, as used in January 1945 against the German in the Oder Offensive. It should be noted that despite having a role similar to the Tiger heavy tank battalions in the German service, they are produced in far greater numbers to enforce every tank corp with one heavy tank regiment that allowed even the IS-2 to overwhelm German defenses. The IS-2 continued to see combat service for the Red Army all the way to the Battle of Berlin and the end of World War II.[1] T

After World War II, the IS-2 production was replaced by the more heavily armoured IS-3, but the IS-2 stayed in service up until 1982 due to modernization efforts on the IS-2. These modernized IS-2 were named the IS-2M and were done in the mid-1950s. These modernization efforts added external fuel tanks and stowage bins onto the hull, and protective skirts on the edges of the tracks. The IS-2 were finally placed into storage in 1990s and were kept in reserves or sold out as scrap metal.

Like most of Soviet Union's military hardware, the IS-2 was given out to the Warsaw Pact nations as supplies. The IS-2 was thus lent out to Poland, Czechoslovakia, Hungary, China, North Vietnam, and maybe North Korea. Later in 1960, a shipment of IS-2 was also sent to Cuba, these were converted into bunkers and coastal defenses as spare parts for the tank never made it to Cuba due to the US blockade imposed in 1962.

Media

Skins and camouflages for the IS-2 (mod.1944) from live.warthunder.com. They are filed under the terms #is_2_1944 and #is2_44.

References

  1. 1.0 1.1 1.2 Zaloga, Steven J. IS-2 Heavy Tank 1944-73 Great Britain: Osprey Publishing Ltd., 1994

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the series of the vehicles;
  • links to approximate analogues of other nations and research trees.

External links


USSR heavy tanks
KV-1  KV-1 (L-11) · KV-1 (ZiS-5) · KV-1E · KV-1S
KV-2  KV-2 (1939) · KV-2 (1940) · KV-2 (ZiS-6) · KV-220
Other KVs  KV-85 · KV-122
IS-1/2  IS-1 · IS-2 · IS-2 (1944) · IS-2 No.321 · IS-2 "Revenge" · Object 248
Other IS tanks  IS-3 · IS-4M · IS-6 · IS-7
T-10  T-10A · T-10M
Multi-turreted  T-35 · SMK
Other  Object 279
Lend-Lease  ▂MK-II "Matilda"