Difference between revisions of "IS-4M"
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[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]] | [[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]] | ||
{{break}} | {{break}} | ||
| − | The '''{{Specs|name}}''' is a | + | The '''{{Specs|name}}''' is a rank {{Specs|rank}} Soviet heavy tank {{Battle-rating}}. It was introduced during the closed beta testing for Ground Forces before Update 1.41. |
== General info == | == General info == | ||
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=== Machine guns === | === Machine guns === | ||
| − | <!--''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft | + | <!--''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.''--> |
{{main|DShK (12.7 mm)}} | {{main|DShK (12.7 mm)}} | ||
| Line 230: | Line 230: | ||
* Can - and will - be a priority target for the enemy team due to its fearsome reputation | * Can - and will - be a priority target for the enemy team due to its fearsome reputation | ||
* Long reload of 20 seconds | * Long reload of 20 seconds | ||
| − | * Ammo rack in back of the turret; if a shell penetrates, the ammo could detonate. | + | * Ammo rack in the back of the turret; if a shell penetrates, the ammo could detonate. |
== 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 If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: 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.''--> | <!--''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 If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: 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.''--> | ||
===Development=== | ===Development=== | ||
| − | During the development of the [[IS-3]] in 1944 under General Nikolai Dukhov, a separate project was underway by a design team led by L.S. Troyanov to improve the [[IS-2 (1944)|IS-2]] design. This separate project commenced under the designation ''Object 701''. The project produced three proposed design. The ''Object 701-2'' with a S-34 100 mm gun, ''701-5'' with a different armour configuration, and the ''701-6'' with the 122 mm D-25 gun. The ''701-6'' was accepted for further development, to which was modified with thicker armour, longer hull, and a more powerful engine. There was some implementation of German designs into the prototype; the engine has a cooling system that uses a pair of circular fans on the engine deck, a feature also seen on the [[Panther A|Panther tank]].<ref name="ZalogaIS">Zaloga Steven. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> | + | During the development of the [[IS-3]] in 1944 under General Nikolai Dukhov, a separate project was underway by a design team led by L.S. Troyanov to improve the [[IS-2 (1944)|IS-2]] design. This separate project commenced under the designation ''Object 701''. The project produced three proposed design. The ''Object 701-2'' with a S-34 100 mm gun, ''701-5'' with a different armour configuration, and the ''701-6'' with the 122 mm D-25 gun. The ''701-6'' was accepted for further development, to which was modified with thicker armour, longer hull, and a more powerful engine. There was some implementation of German designs into the prototype; the engine has a cooling system that uses a pair of circular fans on the engine deck, a feature also is seen on the [[Panther A|Panther tank]].<ref name="ZalogaIS">Zaloga Steven. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> |
===Usage=== | ===Usage=== | ||
| Line 241: | Line 241: | ||
===Legacy=== | ===Legacy=== | ||
| − | The IS-4, as a relatively unsuccessful Soviet tank, faded to obscurity with little information on it | + | The IS-4, as a relatively unsuccessful Soviet tank, faded to obscurity with little information on it passed its development period. It was the heaviest of the Soviet heavy tanks that were slated for production. The IS-4's design was further developed on in the IS tank family with the ''Object 703'', with the design using an electrical transmission instead of a mechanical one. This vehicle redesignated the ''[[IS-6]]'', also proved to be problematic and was shelved.<ref name="ZalogaIS" /> |
| + | |||
| + | === In-game description === | ||
| + | Development of this tank began in July 1943 at the ChKZ factory. The main impetus for creating a new Soviet heavy tank was the prospect of being able to install more powerful artillery on it than what was installed on the IS-2. The vehicle underwent testing until the autumn of 1944. The new vehicle had one inarguable virtue - no tank or anti-tank cannon of Soviet or German make could penetrate its 160 mm frontal armour. At the end of 1944, two more vehicles equipped with modernised transmission were produced. | ||
| + | |||
| + | In April 1945, the tank was put into service and mass-produced under the designation IS-4. The vehicle's hull was fully welded, while its turret was cast with tapering armour thickness. Along with its 122 mm D-25T cannon, it was also armed with a coaxial 12.7 mm machine gun. An identical machine gun was placed as an anti-aircraft gun on a ring mount above the loader's hatch. One of the vehicle's characteristic features was its original ammunition rack, in which shells were housed in special metal canisters. The tank had epicyclic transmission and individual torsion-bar suspension. The crew consisted of 4 people. The vehicle's powertrain was a 750 hp B-12 diesel engine. With this engine, the tank could reach 43 km/h on-road. | ||
| + | |||
| + | The IS-4 was mass-produced until 1949. In total, around 250 of them were made. These vehicles served in the Far East. | ||
| + | |||
| + | It became clear during its deployment that the tank's mass exceeded the carrying capacity of most bridges and transport platforms. It was this fact that effectively buried the idea of building vehicles with a mass greater than 50 tonnes. The IS-4 was taken out of operation and placed in long-term storage, and then withdrawn from service entirely. After this, it was often used on ballistic ranges as a target. | ||
== Media == | == Media == | ||
Revision as of 11:06, 22 May 2019
Contents
Description
The IS-4M is a rank V Soviet heavy tank
with a battle rating of 7.7 (AB/RB/SB). It was introduced during the closed beta testing for Ground Forces before Update 1.41.
General info
Survivability and armour
Armour type:
- Rolled homogeneous armour (Hull, Turret roof, Hatch roof)
- Cast homogeneous armour (Turret)
| Armour | Front | Sides | Rear | Roof |
|---|---|---|---|---|
| Hull | 140 mm (62°) Front glacis 160 mm (40°) Lower glacis 160 mm (34-77°) Driver's port 40 mm (44-87°) Top of Driver's port |
160 mm (30-53°) Top 160 mm Middle 30 mm (61°) Bottom |
100 mm (37°) Top 30 mm (80°) Middle 100 mm (31-39°) Bottom |
30 mm |
| Turret | 200-250 mm (2-89°) Turret front 200 mm (0-65°) , 170 + 250 mm (2-61°) Gun mantlet |
200 mm (3-40°) | 150 (62-72°) Top 170 mm (21-49°) Bottom |
30 mm Front, Hatch roof, Ventilators 50 mm Front sides 170 mm Center |
Notes:
- Suspension wheels are 20 mm thick, torsion bars are 10 mm thick, and tracks are 30 mm thick.
Mobility
| Mobility characteristic | ||
|---|---|---|
| Weight (tons) | Add-on Armour weight (tons) |
Max speed (km/h) |
| 60.0 | N/A | 45 (AB) |
| 43 (RB/SB) | ||
| Engine power (horsepower) | ||
| Mode | Stock | Upgraded |
| Arcade | 968 | ___ |
| Realistic/Simulator | 663 | 750 |
| Power-to-weight ratio (hp/ton) | ||
| Mode | Stock | Upgraded |
| Arcade | 16.13 | __.__ |
| Realistic/Simulator | 11.05 | 12.50 |
Armaments
Main armament
| 122 mm D-25T | |||||
|---|---|---|---|---|---|
| Capacity | Vertical guidance |
Horizontal guidance |
Stabilizer | ||
| 30 | -3°/+19° | ±180° | N/A | ||
| Turret rotation speed (°/s) | |||||
| Mode | Stock | Upgraded | Prior + Full crew | Prior + Expert qualif. | Prior + Ace qualif. |
| Arcade | 9.4 | 13.0 | __.__ | __.__ | __.__ |
| Realistic | 6.9 | 8.1 | __.__ | __.__ | __.__ |
| Reloading rate (seconds) | |||||
| Stock | Prior + Full crew | Prior + Expert qualif. | Prior + Ace qualif. | ||
| 27.1 | __.__ | __.__ | 20.8 | ||
Ammunition
| Penetration statistics | |||||||
|---|---|---|---|---|---|---|---|
| Ammunition | Type of warhead |
Penetration in mm @ 90° | |||||
| 10m | 100m | 500m | 1000m | 1500m | 2000m | ||
| BR-471 | APHE | 204 | 200 | 182 | 162 | 144 | 128 |
| BR-471B | APHEBC | 205 | 202 | 191 | 178 | 165 | 154 |
| BR-471D | APCBC | 229 | 227 | 214 | 199 | 186 | 173 |
| OF-471 | HE | 45 | 45 | 44 | 43 | 42 | 42 |
| Shell details | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ammunition | Type of warhead |
Velocity in m/s |
Projectile Mass in kg |
Fuse delay
in m: |
Fuse sensitivity
in mm: |
Explosive Mass in g (TNT equivalent): |
Normalization At 30° from horizontal: |
Ricochet: | ||
| 0% | 50% | 100% | ||||||||
| BR-471 | APHE | 795 | 25 | 1.2 | 15 | 272 | -1° | 47° | 60° | 65° |
| BR-471B | APHEBC | 795 | 25 | 1.2 | 15 | 272 | +4° | 48° | 63° | 71° |
| BR-471D | APCBC | 800 | 25 | 1.2 | 15 | 212.5 | +4° | 48° | 63° | 71° |
| OF-471 | HE | 800 | 25 | 0.1 | 0.1 | 3,600 | +0° | 79° | 80° | 81° |
Ammo racks
| Full ammo |
Ammo Part |
1st rack empty |
2nd rack empty |
3rd rack empty |
4th rack empty |
5th rack empty |
6th rack empty |
Visual discrepancy |
|---|---|---|---|---|---|---|---|---|
| 30 | Projectiles Propellants |
29 (+1) 29 (+1) |
24 (+6) 24 (+6) |
19 (+11) 19 (+11) |
14 (+16) 14 (+16) |
9 (+21) 9 (+21) |
1 (+29) 1 (+29) |
no |
Machine guns
| 12.7 mm DShK | ||||||
|---|---|---|---|---|---|---|
| Pintle mount | ||||||
| Capacity (Belt capacity) | Fire rate (shots/minute) |
Vertical guidance |
Horizontal guidance | |||
| 250 (50) | 600 | -10°/+60° | ±180° | |||
| Coaxial mount | ||||||
| Capacity (Belt capacity) | Fire rate (shots/minute) |
Vertical guidance |
Horizontal guidance | |||
| 1,000 (50) | 600 | N/A | N/A | |||
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).
Pros and cons
Pros:
- Very good frontal armour; can even bounce 128 mm shells from the Maus.
- Retains the powerful D-25T 122mm gun as on the previous IS-2 and IS-3
- The mere presence of an IS-4 can make enemies panic or run and hide.
- Slightly wider choices of ammo compared to the IS-2 and IS-3.
Cons:
- Can - and will - be a priority target for the enemy team due to its fearsome reputation
- Long reload of 20 seconds
- Ammo rack in the back of the turret; if a shell penetrates, the ammo could detonate.
History
Development
During the development of the IS-3 in 1944 under General Nikolai Dukhov, a separate project was underway by a design team led by L.S. Troyanov to improve the IS-2 design. This separate project commenced under the designation Object 701. The project produced three proposed design. The Object 701-2 with a S-34 100 mm gun, 701-5 with a different armour configuration, and the 701-6 with the 122 mm D-25 gun. The 701-6 was accepted for further development, to which was modified with thicker armour, longer hull, and a more powerful engine. There was some implementation of German designs into the prototype; the engine has a cooling system that uses a pair of circular fans on the engine deck, a feature also is seen on the Panther tank.[1]
Usage
Object 701 was eventually approved for production in 1947 as the IS-4. The production turned out 200 tanks (some sources say 250) before the production was halted. The reason being that the IS-4 was criticized for being inadequate in mobility despite its new engine.[1] While production ended, the remaining IS-4 still saw service in the Soviet Union. When the Korean War broke out in 1950 and the United States and its allies got involved, the IS-4s were all shipped to the Far East of the Soviet Union in anticipation of Soviet intervention in the Korean War. They were not committed despite pressure by the Chinese from fear of inciting another world war. Even so, the IS-4 stayed in the region ready for action. In the late 1950s, the IS-4 underwent a modernization program along the lines of the IS-3 with increased ammo stowage, new machine gun armaments, new gun optics, better engine, and better filtration system and this modernized variant was named the IS-4M.[1] The IS-4 stayed in service in the Soviet Union until the 1960s.
Legacy
The IS-4, as a relatively unsuccessful Soviet tank, faded to obscurity with little information on it passed its development period. It was the heaviest of the Soviet heavy tanks that were slated for production. The IS-4's design was further developed on in the IS tank family with the Object 703, with the design using an electrical transmission instead of a mechanical one. This vehicle redesignated the IS-6, also proved to be problematic and was shelved.[1]
In-game description
Development of this tank began in July 1943 at the ChKZ factory. The main impetus for creating a new Soviet heavy tank was the prospect of being able to install more powerful artillery on it than what was installed on the IS-2. The vehicle underwent testing until the autumn of 1944. The new vehicle had one inarguable virtue - no tank or anti-tank cannon of Soviet or German make could penetrate its 160 mm frontal armour. At the end of 1944, two more vehicles equipped with modernised transmission were produced.
In April 1945, the tank was put into service and mass-produced under the designation IS-4. The vehicle's hull was fully welded, while its turret was cast with tapering armour thickness. Along with its 122 mm D-25T cannon, it was also armed with a coaxial 12.7 mm machine gun. An identical machine gun was placed as an anti-aircraft gun on a ring mount above the loader's hatch. One of the vehicle's characteristic features was its original ammunition rack, in which shells were housed in special metal canisters. The tank had epicyclic transmission and individual torsion-bar suspension. The crew consisted of 4 people. The vehicle's powertrain was a 750 hp B-12 diesel engine. With this engine, the tank could reach 43 km/h on-road.
The IS-4 was mass-produced until 1949. In total, around 250 of them were made. These vehicles served in the Far East.
It became clear during its deployment that the tank's mass exceeded the carrying capacity of most bridges and transport platforms. It was this fact that effectively buried the idea of building vehicles with a mass greater than 50 tonnes. The IS-4 was taken out of operation and placed in long-term storage, and then withdrawn from service entirely. After this, it was often used on ballistic ranges as a target.
Media
Camouflages and skins for the IS-4 from live.warthunder.com
References
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
Paste links to sources and external resources, such as:
- topic on the official game forum;
- encyclopedia page on tank;
- other literature.
| 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) |
| Other KVs | KV-85 · KV-122 · KV-220 |
| 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" |
