KV-IB (Germany)

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This page is about the German heavy tank KV-IB (Germany). For other versions, see KV-1 (Family).
GarageImage KV-IB (Germany).jpg
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The ▀KV-IB is one of the two Finnish captured KV-1 tanks from the Soviet Union during the Finnish-Soviet conflicts. This KV-1E (model 1940) that the Finns seized near Solomennoye, Petrozavodsk at the beginning of the Continuation War. Following the German designation of KV-1B, the Finns gave it the index number Ps. 272-1 and the nickname "Klimi". The Finns put it into service in early 1942. It was one of the few modern tanks that the Finns had at that time, but it had many problems. The tank crew had poor visibility, and the tank had many technical issues that made it unreliable. The Finns also lacked spare parts, so maintenance often stretched long times. The tank saw little action in the Lapland War, after which it transferred to the Training Battalion of the Tank Brigade on October 31, 1944. The Finns did not use it much after the war, even though they kept it until 1955. Both KV-1 tanks that the Finns captured are still in the Parola Tank Museum today.

It was first unveiled in the game in Update 1.41.27. The KV-1B is identical to the Soviet KV-1E. It has extra armour plates welded to its hull and turret. The 76 mm F-32 gun is not the strongest, but it can still pack a punch with its well-filled APHEBC or HE shells. The turret rotation is slow and the mobility is average. The front and side armour is very thick, except for the weak spots on the gun mantlet and the small turret cheeks. The KV-1B is a formidable tank at its rank.

The KV-IB has been available a handful of times throughout its history, but relatively difficult to attain each time, making it one of the rarer vehicles in-game. It was first obtainable by purchasing select MSI products in Russia. In 2015, an event known as "Summertime Madness" had the KV-1B available to be obtained as a prize. The vehicle has since been available to be obtained via events, such as the March 2016 "War Thunder:100" team deathmatch event and the Warbond shop in the 4th, 5th, and 6th War Thunder anniversary. Aside from these events, it is not available in-game or via the gift shop.

General info

Survivability and armour

Armourfront / side / back
Hull100 / 75 / 70
Turret75 / 100 / 75
Crew5 people
Visibility101 %

Armour type:

  • Rolled homogeneous armour
Armour Front Sides Rear Roof
Hull 75 + 25 mm (30-31°) Front plate
40 mm (72°) Front glacis
75 mm + 25 mm (26-51°) Lower glacis
75 + 25 mm 60 mm (13-89°) Top
70 mm (14-57°) Bottom
30 mm
Turret 75 + 30 mm (14°) Turret front
90 mm (1-62°) Gun mantlet shield
75 mm (4-36°) Gun mantlet
75 + 30 mm (14-15°) 75 mm (15-16°) 40 mm


  • Suspension wheels are 20 mm thick, and tracks are 30 mm thick.
  • Roof armour is quite excellent, coming in at 30 - 40 mm. It will reliably protect from most autocannons, though aircraft with good driveability and 30+ mm weaponry may still pierce it. More importantly, it makes the vehicle quite resilient against rocket strikes from vehicles such as the Calliope.
  • The lower glacis, unlike most other tanks, is not a weak spot! It is significantly better angled than the upper frontal plate. Furthermore, neither the MG port nor the drivers' view slit are weak points. Discard them as targets if aiming for them.
  • The gun mantlet is an extra 75 mm bolted onto the turret, with some parts having an extra 90 mm added. This results in a spaced and overlapped part with ~150 mm. Only the cheeks left and right of the mantlet bulges should be shot! However, these areas are quite small and easily missed, if the turret is traversed.
  • Extra armour is not placed all over the tank, thus revealing some weaker areas on the front hull and sides.

The Finnish KV-1B has excellent protection characteristics. Above its naturally tough KV-1 body that consists primarily of 75 mm of armour, it has armour screens ranging from 25 and 30 mm thick on the hull and turret respectively. Those who fight the Soviet KV-1E may understand some weak points, but the KV-1B remains a tough tank. Another part of why the KV-1B is quite a threat is that the tank is overall quite fast once it has accelerated. Coupled with the armour, this tank can be considered quite a swift bruiser.

Among this extra armour, the KV-1B still possesses a few weak points. Starting from the hull front, the driver's hatch and bow machine gun are uncovered by the extra plating. There are some small uncovered areas in the lower glacis as well if it can be targeted. In the hull sides, the 25 mm extra armour is mostly present at the higher part of the side armour behind the suspension, so aim closer towards the wheels, or even between the suspension wheels, to hit the thinner 75 mm side. Hitting the hull sides is a recommended tactic, as behind these are the ammunition and fuel tanks, which can ignite or explode if hit, instantly destroying the KV-1B. If these extra armour platings prove too hindering, rest assured that the rear hull armour is unprotected by these extra plates, so the usual thickness of 60-70 mm at the rear can be exploited by fast and flanking vehicles to immobilize the KV-1B through the transmission and engine. However, the strong hull front and sides make an angled KV-1B a dangerous enemy as it will then be very hard to penetrate through there,

The turret is better protected than the hull with 30 mm extra plates, but some weaknesses can still be found. In the turret front, the extra armour covers the flat side area that would normally be 75 mm thick, preventing easy turret cheek shots. However, the gun mantlet cheeks that are 90 mm and the tiny area under it that is 75 mm are not covered by these extra plates. With a sufficiently powerful weapon, this frontal turret area can be the only area that is easily penetrable when a KV-1B is aiming towards the player. The turret sides are another story. With 30 mm extra armour covering a large portion of it, it might actually be one of the worst areas to shoot the KV-1B at, as the movement from the KV-1B turret, coupled with the armour, can change the shot angle and simply bounce away from the shot. Despite all this, there are still small slivers of weak points in this 30 mm plate. Right around the area where the 30 mm plates seem to intersect, there are two holes present that will reveal the 75 mm armour underneath. This allows a clean shot to the turret side and, if the enemy is carrying lots of ammunition, a chance to strike one of the ammo racks in the turret and destroy the tank. The turret rear, like the hull rear, is not protected by extra armour, so a manoeuvre around the KV-1B to these areas can allow the player to use their weaponry against the more vulnerable hull and turret rear sides.

Though the F-32 gun is at the weaker end of the Soviet 76 mm guns, it is still quite powerful against most vehicles. One firepower trait to exploit on the KV-1B is the rather slow turret traverse rate. The KV-1B will have a hard time keeping its gun on flanking vehicles, especially those that are up close to it on the sides. With allies, a small light tank can get up close and force the KV-1B to try and turn its turret and hull to keep up with the small circling tank, allowing an ally with a powerful gun to hit the KV-1B at weak points when it is concentrating on the more immediate threat of the circling tank. Nevertheless, a small light tank can do plenty of damage while outrunning the KV-1B, using the aforementioned armour weak points. The tank is helpless to a quick foe if there are no other enemy players around to assist it.


Speedforward / back
AB37 / 7 km/h
RB and SB35 / 7 km/h
Number of gears5 forward
1 back
Weight49.0 t
Engine power
AB1 145 hp
RB and SB600 hp
Power-to-weight ratio
AB23.4 hp/t
RB and SB12.2 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 37 7 49 775 1,145 15.82 23.37
Realistic 35 7 531 600 10.84 12.24

Modifications and economy

Repair cost
AB953 Sl icon.png
RB1 127 Sl icon.png
SB1 508 Sl icon.png
Crew training10 000 Sl icon.png
Experts165 000 Sl icon.png
Aces470 Ge icon.png
Research Aces710 000 Rp icon.png
Reward for battleAB / RB / SB
Talisman.png 2 × 80 / 130 / 130 % Sl icon.png
Talisman.png 2 × 148 / 148 / 148 % Rp icon.png
Mobility Protection Firepower
Mods new tank traks.png
Mods new tank suspension.png
Mods new tank break.png
Brake System
Mods new tank filter.png
Mods new tank transmission.png
Mods new tank engine.png
Mods tank tool kit.png
Improved Parts
Mods extinguisher.png
Improved FPE
Mods tank reinforcement ger.png
Crew Replenishment
Mods new tank horizontal aiming.png
Horizontal Drive
Mods tank cannon.png
Adjustment of Fire
Mods tank ammo.png
Mods new tank vertical aiming.png
Elevation Mechanism


Main armament

Ammunition111 rounds
Reloadbasic crew → aces
8.1 → 6.3 s
Vertical guidance-5° / 25°
Main article: F-32 (76 mm)
76 mm F-32 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 111 -5°/+25° ±180° N/A 9.7 13.4 16.3 18.0 19.2 8.19 7.24 6.68 6.30
Realistic 7.1 8.4 10.2 11.3 12.0


The KV-IB (Germany) has the following ammunition available:

  • BR-350A: The typical APBC with HE filler. This is the standard round most players will take as the default type. It can cause massive post-penetration damage if it does penetrate.
  • BR-350B: The new APHEBC with HE filler, sacrificing some explosive post-penetration damages for raw penetrating power and solid-shot spalling post-penetration damage. Recommend taking this shot as the primary weapon to use the extra penetration values.
  • OF-350M: High-explosive shell. Though it should never be used to penetrate an enemy tank, it can be useful for destroying lightly armoured vehicles with overpressure, such as trucks and the like.
  • Sh-354T: Shrapnel shell. In ways, it is similar to the HE shell, except it has sufficient penetration value to deal with light tanks as well. Its explosion can also create shrapnel that can also be used against lightly armoured vehicles like HE shells.

Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
BR-350A (MD-5 fuse) APHEBC 78 76 70 62 56 50
BR-350B (MD-8 fuse) APHEBC 88 86 77 67 59 51
OF-350M HE 10 10 10 10 10 10
Sh-354T Shrapnel 35 34 30 26 22 19
Shell details
Ammunition Type of
mass (kg)
Fuse delay
Fuse sensitivity
Explosive mass
(TNT equivalent) (g)
0% 50% 100%
BR-350A (MD-5 fuse) APHEBC 615 6.3 1.2 14 150 48° 63° 71°
BR-350B (MD-8 fuse) APHEBC 615 6.5 0.9 14 100.1 48° 63° 71°
OF-350M HE 615 6.2 0.05 0.1 621 79° 80° 81°
Sh-354T Shrapnel 615 6.44 1.2 14 85 62° 69° 73°

Ammo racks

Ammo racks of the KV-1 (L-11) (identical)
rack empty
rack empty
rack empty
rack empty
111 107 (+4) 102 (+9) 79 (+32) (+110) No


  • Racks are modelled by sets of 5 shells (+ 1 set of 3 & 2 sets of 4) and sets disappear from the rack once all shells in the set have been loaded/fired.
  • The front half of rack 4 will be empty if you carry 39 (+72) shells.
  • Turret empty: 102 (+9) shells.

Machine guns

Ammunition3 024 rounds
Belt capacity63 rounds
Reloadbasic crew → aces
10.4 → 8.0 s
Fire rate600 shots/min
Main article: DT (7.62 mm)
7.62 mm DT
Mount Capacity (Belt) Fire rate Vertical Horizontal
Coaxial 3,024 (63) 600 N/A N/A

The small calibre of the DT machine gun makes it largely ineffective against all armoured vehicles but the ones with an open compartment. It still can be used to ping targets as a rangefinding help. The clip capacity of the machine gun is quite poor, as it relies on a magazine of 63 bullets instead of a belt like similar machine guns from other nations.

Usage in battles

In the game, this tank possesses great armour and an adequate gun. However, it may not be able to destroy the enemy from the front at times. As such, the tank may require being at a very close distance or a flank shot to disable certain targets. The defining characteristic of this tank is its armour. It can be a tough tank to destroy, given that most of the weak spots from the predecessor have been armoured and, from the front, the only weak spot is the centre of the upper hull. When using this tank, do not be afraid to advance towards the enemy, especially against tanks such as the 75 mm M4s and T-34s since they will find it very difficult to penetrate your thick armour. This tank can also be used for long-range support since when the armour is properly angled, almost no tank that it faces can pierce its armour.

The typical weapon of choice that would be used against the KV-1B would be the German long 75 mm gun seen on the Panzer IV or tank destroyers. Another weapon to take care of the tank is the Type 5 guns on the Japanese Na-To tank destroyer and Chi-To tank. However, if playing in RB/SB, there is no risk of coming up against the long 75 mm on both the German and Japanese tanks since the KV-1B is on the axis side.

Against the Allies, there are a few guns that can penetrate the KV-1B. High-velocity guns like the 76 mm, 17-pounder, and 85 mm can cut through the hull at a perpendicular angle or the turret with ease. However, these guns most likely won't be seen except in an up-tier.


Urban environment
Urban areas tend to result in very close-range engagements. At this range, the armour of this tank can no longer offer the degree of protection that it does at range. With this being said, urban can also present nice medium-range opportunities, such as open-air squares and long streets in which this tank can utilise its armour. Urban fighting presents the largest challenge for this tank, as close-range flank shots can easily pierce its mighty armour. As such, here are some tactics to use in a city setting:

  • Hold down a street - set up in a way that minimizes the chance of being flanked while allowing for the largest angle fire. This will allow the KV-1B to fire at the enemy while minimizing the chance of getting knocked out by a close-range flank shot
  • Move with a group of tanks - try to stay in the middle of a group as this will minimize the chances of a close-range flank shot. At this range, the cannon of the tank can penetrate most tanks and has a decent rate of fire, allowing it to quickly engage multiple targets.
  • Never blindly drive through an intersection - always check both ways before crossing, as this presents the largest opportunity for danger for this tank.

Open country The armour of this tank allows it to engage in the long-range fighting that defines an open country. However, the gun on this tank does not allow it to engage targets at range. This means that while playing in open country, it is a good idea to get into a good overwatch position or to charge the enemy until the KV-1B is capable of engaging at the optimal range for the 76 mm weapon. While the armour on this tank is among the best for the enemies it faces, there are still certain tanks to worry about. The main tanks to work about are those with the American 76 mm, German 75 mm L/48, Soviet 57 mm and 85 mm, and of course all the large calibre guns such as the KV-2. These weapons are capable of piercing through the KV-1B armour at range, though this requires a lucky hit on an un-angled plate. Here are some tips when fighting in an open country:

  • Always angle the tank - the untangled armour is good, but it is nearly impossible to pierce when properly angled.
  • Don't be afraid to expose the tank - use the armour to give a degree of freedom in finding the targets.
  • Advance - take the point or lead the charge, the KV-1B has the armour to break through enemy lines.

Hill country

This is the type of terrain that this tank excels in. The average range of engagements allows for both the armour and gun to shine. This type of terrain also makes flanking hard, since going over a hill exposes a tank to fire from multiple directions. Even with this, don't forget to check your surroundings. Here are some tips and tactics for fighting in this environment:

  • Move through the area between hills - this will allow a degree of control on where the enemy will come from and angle the armour in accordance.
    • Going over large hills can be dangerous as it exposes the KV-1B to fire from all directions and also exposes the bottom of the tank to fire.
  • Check your surroundings - while it is dangerous to go over hills, many newer players will attempt to do this and will sometimes manage to flank the tank.

Long range

This tank does not excel here due to the low penetration of the gun. However, the armour of this tank makes it almost invulnerable to enemy fire at long ranges. Due to this, it is possible to safely attack enemies with little fear of penetrating return fire. Just remember to properly angle the tank to maximize its armour. While long-range combat is not the best option for this tank, it can use its armour to sit in positions that no other tank could do safely. When using this tank from long range, the first piece of advice would be to close in on the enemy, though this is sometimes not possible. When one finds that long-range combat is necessary or is a preferred strategy, one can place this tank in a highly visible position to draw enemy fire. This will allow teammates to find the enemy and eliminate them. This will also allow for one to choose their target since its gun necessitates shooting at weakly armoured targets or the sides and rear of tanks.

Medium range

This tank excels in medium-range combat due to its great armour. Many tanks it faces will find penetrating this tank almost impossible even from the side due to the additional armour.

Close range

This tank does not excel here due to bad mobility, and the greatest strength of this tank, its great armour, is no longer as potent.

Pros and cons


  • Amazing protection and survivability thanks to the add-on armour all around it
  • Features a unique Finnish camouflage
  • Good reload time of around 7 seconds
  • Gun does a lot of damage upon penetration
  • Thick roof armour (30-40 mm) effectively protects it against strafing planes
  • Located on the German lineup, won't face dangerous guns like the KwK 40 in RB or SB.


  • Gun has weak penetration, even medium tanks (e.g. T-34) require you to target weak spots
  • Sluggish mobility: bleeds lots of speed when turning, below-average acceleration, and slow reverse speed
  • No access to APCR shells, heavy tanks like the Churchill I can be tough to destroy
  • Still has weak spots: driver's port (75 mm) and the frontmost area of the hull sides (75 mm)
  • Appears like a Soviet KV-1 so you may be mistakenly team killed in SB


Development of KV-1

The development of the KV-1 heavy tank began after the numerous flaws of the T-35 multi-turreted tank came to light. Designers were ordered to draw up new designs to become the basis of a breakthrough heavy tank as deemed necessary by Soviet combat doctrine. This called for a tank that was heavily armoured, but not very mobile as it was to be for siege warfare. The designs offered all had heavy armour, and wide tracks, and used the torsion-bar suspension. The designs were the SMK, T-100, and what would become the KV tank, which was named after the then Soviet Defense Commissar Kliment Voroshilov.

As the prototypes were being developed and tested, the Winter War with Finland began. The Soviets sent these tanks into Finland for combat testing, and the KV design outperformed its contemporaries in every way with its superior armour and firepower. The armour on the KV tank was impenetrable by most tank cannons in service and most anti-tank guns as well, the 76.2 cannon also gave it a huge firepower boost compared to the usual 37 mm in use by other countries. However, the design was found to be difficult to steer, the transmission was unreliable, the ergonomics were poor and vision was limited. At 45-tons, it was also a very heavy tank for its time. In truth, while formidable in firepower and protection, it gained a bad reputation among its crews. The main variant of production before World War II broke out was the KV-1 model.

The initial production in 1939 had the KV-1 equipped with an L-11 cannon, and later this was upgraded to the F-32 in 1940, then to the F-34 (or ZiS-5) cannon in 1941. The Model 1941 production also had the KV-1 up-armoured for increased survivability. The tank had an additional 25-35 mm of armour added to the turret, hull front and sides. The turret was also now made of cast construction rather than welded. This KV-1 construction was designated the KV-1B and it served with the Soviet Union as a response to crew complaints about the inadequacy of the KV tanks and while the changes did little to mitigate this criticism, the additional protection was welcomed by its crews. However, the increased armour on the KV-1B caused an increased weight and lowered its top speed. The tank could only do about 19 mph (30 km/h) on roads and went even slower in cross-country. The operational range of the vehicle was only 155 miles (250 kilometres).

Captured usage

Finnish troops captured many Soviet armoured vehicles during the Winter War and Continuation War. Among these were KV-1B's, which the Finnish affectionately nicknamed the "Klimi". This KV-1B (real model is KV-1E) was captured near Solomennoye, Petrozavodsk at the start of the Continuation War. A second KV-1, a 1942 model was captured around the same time. The KV-1s and other tanks in Finnish service fought off the Soviets when they invaded Finland again in the Continuation War in June 1944. The KV-1B "Klimi" was used in various battles, such as the Battle of Tali-Ihantala, in defence against the Soviets. This conflict ended with the treaty agreement between the Soviet Union and Finland for peace in late August 1944. Both Finnish KV-1s survived the war and can now be found in the tank museum at Parola.

Several KV-1s survived the war, most as monuments, but also in museums, along with several reproductions. Only one genuine KV-1 was restored to running condition in Russia after it was found at the bottom of the Neva River. One Cast-turret KV-1 (1941) can also be found at the Bovington Tank Museum in England.



See also

Vehicles equipped with the same chassis
Other vehicles of similar configuration and role

External links

Leningrad Kirov Plant (Ленинградский Кировский Завод)
Medium Tanks 
T-28  T-28 (1938) · T-28 · T-28E
T-80  T-80B · T-80U · T-80UK · T-80BVM
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  SMK · KV-220 · IS-7 · Object 279
KV  ▀KV-IB · ▀KW I C 756 (r) · ▀KW II 754 (r)
Other  T-28 (Sweden)
Export  T-80U (Sweden)
See Also  Chelyabinsk Tractor Plant

Germany heavy tanks
Tiger 1 (Henschel)  Tiger H1 · Tiger E · ␠Tiger
Tiger 1 (Porsche)  VK 45.01 (P) · Pz.Bef.Wg.VI P
Tiger 2  Tiger II (P) · Tiger II (H) · Tiger II (H) Sla.16 · Tiger II (10.5 cm Kw.K)
Super heavy tanks  Maus · E-100
Great Britain  ▀Pz.Kpfw. Churchill
USSR  ▀KV-IB · ▀KW I C 756 (r) · ▀KW II 754 (r)

Germany premium ground vehicles
Light tanks  Pz.II C (DAK) · Pz.Sfl.Ic · Pz.Sp.Wg.P204(f) KwK · Sd.Kfz. 140/1 · Sd.Kfz.234/1 · Ru 251 · SPz 12-3 LGS · TAM 2IP
Medium tanks  Nb.Fz. · Pz.III N · Pz.Bef.Wg.IV J · ▀M4 748 (a) · ▀T 34 747 (r) · Ersatz M10
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Heavy tanks  ▀Pz.Kpfw. Churchill · ▀KV-IB · ▀KW I C 756 (r) · ▀KW II 754 (r)
  VK 45.01 (P) · ␠Tiger · Pz.Bef.Wg.VI P · Tiger II (H) Sla.16
Tank destroyers  Sd.Kfz.234/3 · Sd.Kfz.234/4 · Sd.Kfz.251/10 · Sd.Kfz.251/22 · 15 cm Pz.W.42
  Brummbär · Panzer IV/70(A) · VFW · Bfw. Jagdpanther G1 · Elefant · 38 cm Sturmmörser