IS-7
IS-7
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[Client Values; Actual values in
6,100,000  Cost |
| 2400480 HP Hit Points |
| 68.19/70.9529.34/70.95 t Weight Limit |
- Commander
- Gunner
- Driver
- Loader (Radio Operator)
- Loader
| 12001200 hp Engine Power |
| 59.6/15 km/h Speed Limit |
| 2828 deg/s Traverse |
| 17.640.9 hp/t Power/Wt Ratio |
| NoNo Pivot |
| // mm Hull Armor |
| 240/185/94240/185/94 mm Turret Armor |
AP/APCR/HE
AP/APCR/HE Shells |
1118/4800/978
1118/4800/978 Shell Cost |
| 490/490/640490/490/640 HP Damage |
| 250/303/68250/303/68 mm Penetration |
|
4.38 r/m ▲
4.38 r/m Standard Gun ▲ Rate of Fire Standard Gun |
|
2146.2 ▲
Standard Gun
▼
Standard Gun
▲
2146.2 Standard Gun ▲
Standard Gun
▼
Standard Gun
▲ Damage Per Minute Standard Gun |
|
0.4 m ▲
0.4 m With 50% Crew: 0.496 m ▲ Accuracy With 50% Crew: 0.496 m |
| 2.9 s 2.9 s Aim time |
| 2525 deg/s Turret Traverse |
| 360° Gun Arc |
| -6°/+18°-6°/+18° Elevation Arc |
| 3030 rounds Ammo Capacity |
| 1515 % Chance of Fire |
| 400 m 400 m View Range |
| 720 m 720 m Signal Range |
Additional Statistics
(Top Configuration)
Camouflage
- Stationary: 6.9%
- When Moving: 3.4%
- When Firing: 1.1%
Terrain Resistance
- On Hard Ground: 1.25
- On Medium Ground: 1.73
- On Soft Ground: 2.97
Dispersion Change Values
- Turret Contribution
- Rotation: 0.08
- Shot Recoil: 3.84
- Suspension Contribution
- Acceleration: 0.2
- Turning: 0.2
With 100% Crew
X
6100000
The IS-7 is a Soviet tier 10 heavy tank.
Development of the IS-7 started in the spring of 1945. Prototypes successfully underwent trials in 1946 and 1947. However, the IS-7 never saw mass production.
With its well angled "pike-nose" frontal armor layout and a rounded, highly sloped turret front, the IS-7 is one of the toughest nuts to crack when engaged from the front. If positioned behind a piece of cover which shields its lower glacis plate, it becomes a hardened object with so few weak points that successfully damaging the tank turns into a most frustrating experience. Therein lies a weakness, however - the IS-7 cannot angle its armor, because if it does, the sloping of the frontal plate will become significantly worsened and enable most guns to punch through with relative ease. The side armor of the tank is comprised of spaced plates which are not only small but angled as well, making even perfectly landed shots to the hull's midsection fail to do any sort of damage at times. The rear armor is quite thin, however, and will rarely deflect even lower tier guns. The IS-7 mounts a very potent 130mm S-70 naval cannon as the main gun. While it's potentially high damage output can seem quite formidable, the gun itself is largely inaccurate, has a rather long aiming time, takes a while to load, and is actually much less effective than it seems. Nevertheless, at close and medium ranges the gun can still inflict very serious damage. Sustainability of said damage is difficult, though, due to the aforementioned long reload and aim times.
When compared to its Soviets counterparts, the IS-4, the Object 277 and Object 705A, the IS-7 plays like a middle gap between the IS-4 and Object 277. Despite being hampered by its poor terrain resistance values, the tank is nonetheless mobile enough to keep up with the team and change position if absolutely needed. And due to the aforementioned sub-par gun stats, the player of the IS-7 should use this tank in almost exclusively medium and short range brawler-type combat. Your teammates will rely on you to take and deflect the majority of incoming fire while they in turn support your advance and use their (hopefully) more accurate guns to assist in whittling down the enemy team. Expect to do some heavy lifting when driving the IS-7 and use it's key advantages to fight on your own terms and dictate the flow of the battle, improving your performance and probability of success.
The IS-7 marks the end of its Soviet heavy line.
Modules / Available Equipment and Consumables
Modules
Guns
| Tier | Gun | Penetration (mm) |
Damage (HP) |
Rate of fire (rounds/minute) |
Dispersion (m/100m) |
Aiming time (s) |
Weight (kg) |
Price (  )
| |
|---|---|---|---|---|---|---|---|---|---|
| X | 130 mm S-70 | 250/303/68 | 490/490/640 | 4.38 | 0.4 | 2.9 | 2980 | 297000 |
Engines
| Tier | Engine | Engine Power (hp) |
Chance of Fire on Impact (%) |
Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|---|
| X | M-50TI | 1200 | 15 | 700 | 132000 |
Suspensions
| Tier | Suspension | Load Limit (т) |
Traverse Speed (gr/sec) |
Rmin | Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|---|---|
| X | IS-7 | 70.95 | 28 | B/2 | 11000 | 82500 |
Radios
| Tier | Radio | Signal Range (m) |
Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|
| X | 10RK-26 | 720 | 160 | 51600 |
Compatible Equipment
Compatible Consumables
Player Opinion
Pros and Cons
Pros:
- Good alpha damage and gun handling
- Thick, pre-angled pike nose and spaced side armor
- Outstanding turret armor, among the best in the game
- Better than average gun depression for a Russian heavy tank (-6 degrees)
- Great top speed and engine power for a heavy tank
Cons:
- Second worst DPM for a Tier 10 Russian heavy tank
- Worst penetration among Russian Tier 10 heavy tanks
- Bad aim time and accuracy
- Very high ground resistance, achieving the listed top speed can be difficult
- Very vulnerable to ammo rack damage
Performance
IS-7 is a fast heavy tank that delivers mediocre damage while being hard to kill due to its heavily sloped front armor. The IS-7 has some of the best angled frontal armor in the game, however this is somewhat nullified at close range by the equally thick but much less angled lower plate. All these strengths come with a weakness; the IS-7's main gun, while having the same listed accuracy as the E-100's 15cm, in practice seems to be worse at actually hitting the target, let alone hitting a weakspot, thus requiring the player to get fairly close to their target in order to lessen the impact of its poor dispersion values. This in turn makes you a much easier target to hit as well, with a lot of the frontal armor being penetrable by the high penetration premium ammunition found on a lot of tier IX and X tanks from the range the IS-7 prefers to play in. The IS-7 uses the 130 mm S-70, which has better alpha damage than the 122mm M62-T2 mounted on IS-4, but worse stats elsewhere. The main difference between the IS-7 and the IS-4 is that the IS-7 is much faster, with a top speed of 60 km/h (though this is difficult to reach under normal driving conditions), as well as having good turret traverse. A more modern comparison would be with the Object 277, which completely outclasses the IS-7 in terms of mobility, has a better gun complimented nicely by 340mm penetration HEAT rounds, but loses out on hull armor whilst still having extremely strong turret armor (better than the 113 and WZ-111 5A). This makes the Object 277 picked far more frequently in competitive modes because of the high penetration and superior speed.
However, these sloping plates also add a disadvantage: You cannot angle the frontal armor of IS-7 as you expose the well-sloped-but-weak armor plate to the enemy, the effective armor when fighting angled drops a fair amount, allowing tier 8, 9, and 10 guns to punch through if they strike at a shallow enough angle to the plate. This in turn makes your lower plate incredibly easy to penetrate as it is just as thin as the upper plate but with far worse sloping. When fighting one at an angle, prefer its flatter front armor sections than is angled side armor, or shoot the sprocket, dealing damage and throwing off the track. If fighting in an urban environment with many street corners that force you to turn to shoot you opponent, it's advised that you bait them into shooting your thick and spaced side armor by sidescraping, then returning fire as they reload. Alternatively, if your weak lower hull is exposed to enemy fire, try to wiggle or shake it so that it's harder to penetrate. This can even sometime bounces tier X TD shots. The IS-7 is frequently viewed as one of the easiest tier X tanks in the game to play (particularly in random battles), because of the decent mobility, high alpha damage and armor that always has weak points and strong points making it so that it is difficult to play the tank wrong, and it being very forgiving to mistakes the average player is likely to make. However these more generic traits that the IS-7 has (that being that it isn't excellent at any one thing) means that in competitive game modes the IS-7 is rarely seen, because tanks that are better at one job are frequently used in place (e.g. the Super Conqueror might be used if good turret armor is required, because of the better gun it has, or the T110E4 might be used if high alpha damage with armor that can bounce some shots is required, as in these game modes the IS-7's hull armor is frequently unable to hold up against the high penetration premium ammunition the majority of competitive tanks have. Also, if a tank is required in order to be flexible and possibly do one of several jobs, the 113, Object 277, and WZ-111 5A are all picked in favor of the IS-7 because of their power level. That being said, the IS-7 is picked when a fast tank with excellent turret armor is needed, and the position it will be using is unable to hide the weaker upper plate of the Object 277, making the IS-7 able to tank a huge amount of damage.
All-in-all, the IS-7 is a relatively strong tier X heavy tank that is forgiving to play in random battles making it an excellent choice for a first tier X for newer players (on top of the fact that the tanks leading up to it are also all forgiving to play and powerful in their own tiers), but more capable players may find the IS-7 quite boring to play because of this 'low skill floor, low skill ceiling' that the tank has, and so may well get more consistently excellent games by driving one of the Chinese heavy tanks or the Object 277.
Early Research
None required.
Suggested Equipment
External Reviews and Opinions
Gallery
Historical Info
Shashmurin took advantage of the transfer back to Leningrad to examine a number of components developed by Soviet naval research institutes in the city. These included a 1050 hp marine diesel which would be needed to power such a heavy tank, and a 130mm gun derived fron the naval 56-SM gun. The gun fired a huge 36.5 kg projectile at 945 m/s, which made it the most powerful weapon ever mounted in a Soviet tank up to that point. The co-axial weapon was the powerful 14.5mm KPVT heavy machine gun, and no fewer than six other 7.62mm machine guns were provided, two co-axially in the mantlet, two on the right side of the hull, and two more on either side of the turret in small armoured barbettes. Another 14.5mm KPVT was fitted in a remote control mount on the roof for air defence. Given its thick armour, the IS-7 was the heaviest tank ever built in the Soviet Union, weighing 68 metric tons. In spite of its weight, its powerful engine gave it a higher road speed than previous Soviet heavy tanks.
The first prototype of the IS-7 was ready for testing in 1948. The crews were unhappy with the internal layout, which was extremely cramped even by Soviet standards. The ammunition was very heavy and this combined with the lack of space in the vehicle made it difficult to load the main armament. The number of machine guns was considered excessive, and the location of the ammunition trays made it impossible to reload these weapons in combat. The suspension used internal shock absorbers in the wheels patterned after those on the German Tiger II. Unfortunately, these were subject to rapid wear and led to break-downs when the tank was operated near its top speed. The Soviet Army's armoured vehicle directorate was very unhappy about the vehicle's weight for two reasons. Firstly, the extreme weight would tax the limited Soviet road and rail network and the tank would be very difficult to employ tactically since there were few bridges that would withstand its weight. Secondly, heavy weight implied high cost, both in the purchase price and in regular operations and maintenance.
Historical Gallery
Historical Accuracy Errata
*Like many soviet tanks in game the IS-7 has increased gun depression. In reality it had -3° instead of -6°
- Although the IS-7 was planned to feature a 1200 hp engine (B-16) it was instead equipped with a 1050 hp engine (M-50T)
