ISU-122 (China)

␗ISU-122

␗M36 GMC

␗SU-100

␗ISU-122

␗M36 GMC

␗SU-100

China

IV Rank

Battle rating:

AB	RB	SB
5.3	5.3	5.3

Class:

Tank destroyer

Research:27 000

Purchase:185 000

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Description

The ␗ISU-122 is a rank IV Chinese tank destroyer with a battle rating of 5.3 (AB/RB/SB). It was introduced in Update 1.91 "Night Vision".

General info

Survivability and armour

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? If necessary use a visual template to indicate the most secure and weak zones of the armour.

Armour type:

• Rolled homogeneous armour
• Cast homogeneous armour (Gun mantlet)

Armour	Front	Sides	Rear	Roof
Hull	60 mm (75°) Front glacis 90 mm (31°) Lower glacis	90 mm	60 mm (50°) Top 60 mm (39°) Bottom	30 mm
Superstructure	90 mm (30°) Front glacis 65 mm (7-69°) Gun mantlet case 100 mm Gun mantlet (0-45°)	75 mm (14-15°)	60 mm	30 mm

Notes:

• Suspension wheels are 20 mm thick while tracks are 30 mm thick.

Mobility

Game Mode	Max Speed (km/h)		Weight (tons)	Engine power (horsepower)		Power-to-weight ratio (hp/ton)
	Forward	Reverse		Stock	Upgraded	Stock	Upgraded
Arcade	39	15	46	739	992	16.07	21.57
Realistic	36	14		460	520	10	11.3

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. Advise about 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 about 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

Summarise 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 - use substitutions with softer forms such as "inadequate" and "effective".

Pros:

• Deadly cannon provides superior one-shot capacity with any target upon penetration
• Powerful stock AP penetrates up to 205 mm which is very effective in a full up-tier; weak spots of the early Centurions, Ferdinand, Tiger II H can all get penetrated with ease
• The huge gun mantlet and its complex armour layout is capable of deflecting quite some shells sometimes
• 30 mm roof armour resists popular aircraft weapons well, like the 12.7 mm M2 with ground target belt and the MG 151
• All-round protection provides good resistance against flanking SPAAs; the M19 / M42 are very common flankers
• 14 km/h reverse speed allows it to retreat from danger quickly

Cons:

• Long reload of more than 20 seconds and the curved trajectory demands very precise aiming and can be a challenge to use for first-time users
• Front armour is only 60-100 mm and is not well-angled; easily penetrated by common guns at the battle rating, like the 76 mm M1, 17 pdr, 75 mm and 88 mm
• Closely packed crew all easily knocked out when an explosive shell penetrates
• Very inadequate gun depression of -3° combined with the sluggish mobility makes it only capable of fighting in urban (flat) areas, but never the hills
• Turretless layout and the sluggish mobility makes it very vulnerable to surprise flankers, for example, the infamous M18, T20, T25 and Puma
• Gun breech often gets damaged while under enemy fire

History

Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

Development

When the ISU-152 began production in 1943 with the large 152 mm ML-20S gun, production of the chassis and hull soon exceeded the supply of the ML-20S gun, which caused a decrease in the production of self-propelled guns for the Soviet military. It was determined to speed up self-propelled gun production, the ISU chassis were to be mounted with the 122 mm A-19S gun. Work on this mounting already began before the supply issue in December 1943 at the Chelyabinsk Kirov Plant (ChKZ), which had a design team simply take the ISU-152 chassis and hull and only changing out the armament with the 122 mm gun, but this prototype - Object 242 - was not immediately put into production despite successful testings. When the supply issue arose, the prototype was then adopted by the Soviet Defense Committee for increased production and also that the 122 mm gun had better accuracy against tanks than the 152 mm gun. The ISU armed with the 122 mm gun, designated the ISU-122, began production in April 1944.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

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 the tank;
• other literature.

China tank destroyers
PLA
Gun vehicles	PLZ83 · PLZ83-130 · PTZ89
Missile vehicles	AFT09
ROC
Missile vehicles	CM25
USA
Gun vehicles	␗M8 HMC · LVT(A)(4) (ZiS-2) · ␗M10 GMC · ␗M36 GMC
Missile vehicles	␗M113A1 (TOW)
USSR
Gun vehicles	␗SU-76M · ␗ISU-152 · ␗ISU-122 · ␗SU-100