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KV-3

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KV-3

AnnoR39_KV-3.png
Battle Tier
1234567891011
Overview
Mouse over "
Well, the ones further down, of course.
" for more information
[Client Values; Actual values in
Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.
]
1,390,000  Credits Cost
13001400 HP Hit Points
64.88/68.2568.2/71.8 t Weight Limit
Crew
  1. Commander
  2. Gunner
  3. Radio Operator
  4. Driver
  5. Loader
  6. Loader
Mobility
600750 hp Engine Power
32/10 km/h Speed Limit
1618 deg/s Traverse
9.2511 hp/t Power/Wt Ratio
NoNo Pivot
Armor
120/90/90 mm Hull Armor
100/100/100130/130/130 mm Turret Armor
Armament







{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/APCR/HE







{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/APCR/HE
Shells




















109/2800/98




















1025/4800/608
Shell Cost
160/160/280390/390/530 HP Damage
120/161/43175/217/61 mm Penetration



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11.76 r/m 

Standard Gun

Reload Times
Nominal: 5.1 s
50% Crew: 6.32 s
75% Crew: 5.52 s
100% Crew: 4.89 s
Rammer: 4.4 s
Vents: 4.78 s
Both: 4.3 s
Both and BiA: 4.21 s
Both and Max Crew %: 4.04 s

See Crew, Consumables, or Equipment for more information.



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4.88 r/m 

Standard Gun

Reload Times
Nominal: 12.3 s
50% Crew: 15.24 s
75% Crew: 13.3 s
100% Crew: 11.79 s
Rammer: 10.61 s
Vents: 11.53 s
Both: 10.38 s
Both and BiA: 10.15 s
Both and Max Crew %: 9.73 s

See Crew, Consumables, or Equipment for more information.
Rate of Fire






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1867.2

Standard Gun

Using Shell Type 1 (160 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1867.2
50% Crew: 1507.2
75% Crew: 1726.4
100% Crew: 1947.2
100% Crew
Vents: 1990.4
Rammer: 2163.2
Both: 2212.8
Both and BiA: 2260.8
Both and Max Crew %: 2360

Advantageous Damage Per Minute
First-shot DPM: 2027.2
50% Crew: 1667.2
75% Crew: 1886.4
100% Crew: 2107.2
100% Crew
Rammer: 2323.2
Vents: 2150.4
Both: 2372.8
Both and BiA: 2420.8
Both and Max Crew %: 2520

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (160 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1867.2
50% Crew: 1507.2
75% Crew: 1726.4
100% Crew: 1947.2
100% Crew
Vents: 1990.4
Rammer: 2163.2
Both: 2212.8
Both and BiA: 2260.8
Both and Max Crew %: 2360

Advantageous Damage Per Minute
First-shot DPM: 2027.2
50% Crew: 1667.2
75% Crew: 1886.4
100% Crew: 2107.2
100% Crew
Rammer: 2323.2
Vents: 2150.4
Both: 2372.8
Both and BiA: 2420.8
Both and Max Crew %: 2520

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (280 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 3267.6
50% Crew: 2637.6
75% Crew: 3021.2
100% Crew: 3407.6
100% Crew
Vents: 3483.2
Rammer: 3785.6
Both: 3872.4
Both and BiA: 3956.4
Both and Max Crew %: 4130

Advantageous Damage Per Minute
First-shot DPM: 3547.6
50% Crew: 2917.6
75% Crew: 3301.2
100% Crew: 3687.6
100% Crew
Rammer: 4065.6
Vents: 3763.2
Both: 4152.4
Both and BiA: 4236.4
Both and Max Crew %: 4410

See here, here, or here for more information.






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1903.2

Standard Gun

Using Shell Type 1 (390 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1903.2
50% Crew: 1536.6
75% Crew: 1758.9
100% Crew: 1985.1
100% Crew
Vents: 2028
Rammer: 2207.4
Both: 2254.2
Both and BiA: 2304.9
Both and Max Crew %: 2406.3

Advantageous Damage Per Minute
First-shot DPM: 2293.2
50% Crew: 1926.6
75% Crew: 2148.9
100% Crew: 2375.1
100% Crew
Rammer: 2597.4
Vents: 2418
Both: 2644.2
Both and BiA: 2694.9
Both and Max Crew %: 2796.3

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (390 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1903.2
50% Crew: 1536.6
75% Crew: 1758.9
100% Crew: 1985.1
100% Crew
Vents: 2028
Rammer: 2207.4
Both: 2254.2
Both and BiA: 2304.9
Both and Max Crew %: 2406.3

Advantageous Damage Per Minute
First-shot DPM: 2293.2
50% Crew: 1926.6
75% Crew: 2148.9
100% Crew: 2375.1
100% Crew
Rammer: 2597.4
Vents: 2418
Both: 2644.2
Both and BiA: 2694.9
Both and Max Crew %: 2796.3

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (530 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 2586.4
50% Crew: 2088.2
75% Crew: 2390.3
100% Crew: 2697.7
100% Crew
Vents: 2756
Rammer: 2999.8
Both: 3063.4
Both and BiA: 3132.3
Both and Max Crew %: 3270.1

Advantageous Damage Per Minute
First-shot DPM: 3116.4
50% Crew: 2618.2
75% Crew: 2920.3
100% Crew: 3227.7
100% Crew
Rammer: 3529.8
Vents: 3286
Both: 3593.4
Both and BiA: 3662.3
Both and Max Crew %: 3800.1

See here, here, or here for more information.
Damage Per Minute


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0.42 m 

With 50% Crew: 0.52 m
With 75% Crew: 0.454 m
With 100% Crew: 0.403 m
With BiA: 0.394 m
With BiA and Vents: 0.385 m
Maximum possible: 0.369 m

For more details, see Crew


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0.46 m 

With 50% Crew: 0.57 m
With 75% Crew: 0.498 m
With 100% Crew: 0.441 m
With BiA: 0.431 m
With BiA and Vents: 0.422 m
Maximum possible: 0.404 m

For more details, see Crew
Accuracy


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3.4 s 

With 50% Crew: 4.212 s
With 75% Crew: 3.678 s
With 100% Crew: 3.26 s
With GLD: 2.964 s
With BiA: 3.188 s
With BiA and Vents: 3.119 s
With both and GLD: 2.835 s
Maximum possible: 2.718 s

For more details, see Crew or Equipment


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3.4 s 

With 50% Crew: 4.212 s
With 75% Crew: 3.678 s
With 100% Crew: 3.26 s
With GLD: 2.964 s
With BiA: 3.188 s
With BiA and Vents: 3.119 s
With both and GLD: 2.835 s
Maximum possible: 2.718 s

For more details, see Crew or Equipment
Aim time
2422 deg/s Turret Traverse
360° Gun Arc
-7°/+20°-7°/+24° Elevation Arc
9138 rounds Ammo Capacity
General
1515 % Chance of Fire






330 m 

With 50% Crew: 259.3 m
With 75% Crew: 294.7 m
With 100% Crew: 330 m
With Recon and Situational Awareness: 346.7 m
With Coated Optics: 363 m
With Binocular Telescope: 412.5 m
Maximum possible: 472.4 m

For more details, see Skills or Equipment






340 m 

With 50% Crew: 267.1 m
With 75% Crew: 303.6 m
With 100% Crew: 340 m
With Recon and Situational Awareness: 357.2 m
With Coated Optics: 374 m
With Binocular Telescope: 425 m
Maximum possible: 486.7 m

For more details, see Skills or Equipment
View Range


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360 m 

With 50% Crew: 290.6 m
With 75% Crew: 332.8 m
With 100% Crew: 375.5 m
With 100% Signal Boost: 432 m
When affected by 100% Relaying: 396 m
Maximum possible: 540.4 m

For more details, see Skills or Equipment


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730 m 

With 50% Crew: 589.3 m
With 75% Crew: 674.9 m
With 100% Crew: 761.3 m
With 100% Signal Boost: 876 m
When affected by 100% Relaying: 803 m
Maximum possible: 1095.9 m

For more details, see Skills or Equipment
Signal Range
Values are Stock - click for Top


VII

annoKV-3.png

1390000

The KV-3 is a Soviet tier 7 heavy tank.

Developed on the basis of the KV heavy tank, the vehicle initially had very few differences from the mass-produced model. It underwent field trials in January–February 1941. Eventually, several crucial changes were made to the design, greatly boosting the combat characteristics of the vehicle. By July 22, 1941, chassis and engine development was completed. According to some sources, in the fall of 1941, the vehicle was equipped with a serial KV turret and sent to the front.

The KV-3 is defined by its lengthened and more heavily armored KV chassis, and a much rounder turret design. It can use a large variety of guns, but it's best known for the 122mm D-25T cannon, a weapon it shares with the IS. It sports an impressive 120mm of frontal hull armor, its turret is relatively well armored too, and the conical design makes bouncing frequent. When upgraded, it can mount the V-2SN engine, which gives a huge boost of horsepower. It is however much slower than the IS, and like the IS it lacks penetration compared to the German, French and US heavy tanks of its tier.


The KV-3 leads to the KV-4.

Modules / Available Equipment and Consumables

Modules

Ico_gun_alpha.png

Guns

Tier Gun Penetration
(mm)
Damage
(HP)
Rate of fire
(rounds/minute)
Dispersion
(m/100m)
Aiming time
(s)
Weight
(kg)
Price
(Credits)

VII 107 mm ZiS-6 167/219/54 300/300/360 6.19 0.45 3.4 2400 68290
VII 100 mm D10T 175/235/50 250/250/330 6.45 0.42 2.9 2257 78180
VII 122 mm D-2-5T 175/217/61 390/390/530 4.08 0.46 3.4 2600 84980
VIII 122 mm D-25T 175/217/61 390/390/530 4.88 0.46 3.4 2590 125140
VI 85 mm F-30 120/161/43 160/160/280 11.76 0.42 3.4 1550 48000
VI 85 mm S-31 119/159/43 160/160/280 11.76 0.42 3.4 1500 49200

Ico_turret_alpha.png

Turrets

Tier Turret Turret Armor (front/sides/rear)
(mm)
Turret Traverse Speed
(deg/s)
View Range
(m)
Weight
(kg)
Price
(Credits)

VI T-220 100/100/100 24 330 10000 10630
VII KV-3 130/130/130 22 340 12300 21930

Ico_engine_alpha.png

Engines

Tier Engine Engine Power
(hp)
Chance of Fire on Impact
(%)
Weight
(kg)
Price
(Credits)

VII V-2IS 600 15 750 36000
VI V-5 600 15 750 27860
VIII V-2SN 750 15 750 34000

Ico_suspension_alpha.png

Suspensions

Tier Suspension Load Limit
(т)
Traverse Speed
(гр/сек)
Rmin Weight
(kg)
Price
(Credits)

VI KV-3 68.25 16 B/2 14200 10720
VII KV-3 Bis 71.8 18 B/2 14200 18200

Ico_radio_alpha.png

Radios

Tier Radio Signal Range
(м)
Weight
(kg)
Price
(Credits)

V 10R 360 100 3660
VII 10RK 440 100 18600
IX 12RT 625 110 33600
X R-113 730 80 52200


Compatible Equipment

Heavy Spall Liner Camouflage Net Fill Tanks with CO2 Coated Optics Enhanced Gun Laying Drive Enhanced Torsion Bars 5+ t Class Cyclone Filter Improved Ventilation Class 3 Large-Caliber Tank Gun Rammer Binocular Telescope Toolbox "Wet" Ammo Rack Class 2 

Compatible Consumables

Automatic Fire Extinguisher Manual Fire Extinguisher Large First Aid Kit Large Repair Kit Lend-Lease Oil Extra Combat Rations Removed Speed Governor Small First Aid Kit Small Repair Kit 


Player Opinion

Pros and Cons

Pros:


  • Good all around armor, really tough when angled
  • High alpha damage with the 122 mm cannon and above-average DPM
  • Great at sidescraping
  • Well sloped Turret armor with autobounce sides
  • Good max speed for its size (V-2SN engine)


Cons:


  • Armor is very flat, vulnerable to T8-9 guns
  • Low accuracy and sluggish behavior. The gun mantlet is very weak on the center.
  • Atrocious aiming time (3.4 seconds)
  • Side of the turret and hull have massive module hitboxes
  • Limited penetration, even with APCR


Performance

While the KV-3 has a wide array of weapons to choose from, there are really one two options worth considering. 107 mm ZiS-6 is the first one in the line and is probably already researched as it was available in the T-150. The 107 mm has less alpha damage than the 122 mm guns and does slightly less DPM as well, but has a more forgiving reload time and has cheap ammo. The 122 mm D-25T is simply more powerful than the 107 mm and has slightly better penetration. The increased power of the HE rounds should also not be overlooked, as they make a reasonable (and cheaper) alternative to APCR when facing higher tier opponents you cannot easily pen. However, the gun handles sluggishly due to its size, is the slowest and most inaccurate of the bunch, and its shells are very expensive. If you miss or bounce your shot, it's painful. The 100 mm D10T might look a bit bad on paper, having the lowest alpha and DPM, however it has the shortest aim time, is the most accurate weapon you can mount, has even lower ammo cost than the 107mm and a higher rate of fire. Being sluggish and unwieldy at first, after mounting the best engine this tank gains mobility and agility more comparable with the IS. Like the majoriy of heavily armored tank, its combat performance nowadays strongly depends on the enemy limiting themselves to standard shells, as with gold ammo the KV-3 is just a slow undergunned easy target.

Lacking penetration for all its guns, the KV-3 is most effective up close where other tanks have trouble aiming down on the nearly unsloped frontal hull armor, though the large gun mantlet will now and then be penetrated by lower tier medium tanks at point blank range. While the IS has good frontal hull armor which is difficult to improve by angling the hull, the KV-3 has slightly worse frontal armor which is much easier to angle effectively, and becomes much more effective than the IS' armor. The upgraded turret might be as tall as a house, but that house can bounce. While the turret cheeks of the IS can be pentrated easily by most guns with 120 penetration or more, the KV-3's cheeks are narrower and extremely sloped.


Early Research

  • It is possible to mount all upgraded modules onto the KV-3 without overloading the suspension (provided no additional equipment is mounted), so it is possible to ignore the Suspension until the end. However, the KV-3 is already quite bulky fully-upgraded, and the suspension's added traverse will help.
  • The 10RK radio, the 107 mm ZiS-6, and the 85 mm S-31 carry over from the T-150. The V-2IS engine and 122 D-2-5T carries over from the KV-85 if you played that tank prior to this one.
  • The acceleration on the KV-3 is anemic with the second turret without the top engine, inferior in hp/ton to the Maus even with the V-21S. Prioritize the research of the V-2SN, which will confer the KV-3 with a stately 11 hp/ton.
  • Now you can unlock the second turret and then the 122mm cannons. Consider upgrading the suspension and engine if you haven't done so after unlocking the first 122mm, as the D-25T only offers improved DPM.
  • The 100 mm D10T can be ignored entirely, unless you wish to elite the tank or intend to play the IS or T-44 in the future. You should pick up the top radio before moving on though as it's used on all Russian tier 8-9 tanks.


Suggested Equipment


Improved VentilationTank Gun Rammer Enhanced Gun Laying Drive Coated Optics Toolbox 


Gallery

Historical Info

Initially designed as a replacement for the KV-1, the hull and suspension were developed by the beginning of WWII. The KV-3 was not produced in series.

Development and preliminary design

In 1940, the KV-1 and KV-2 tanks were the heavy tanks of the USSR army. Even before the war started, the Soviet military recognized the need for more armor. The KV was only just in mass production, but an order was made for an improved version of it on June 17th, 1940. The tank factory in Kirov was to make 4 prototypes by the end of the year: 2 versions with 90 mm and 2 versions with 100 mm armor. Of the two types, one should be armed with an 85 mm gun, the other with a 76 mm gun.

The factory only managed to complete two of this prototypes: the 90 mm armored design with a 76 mm gun, basically an up-armored KV-1 tank, and a 100 mm armored design with the 85 mm gun. They were respectively called T-150 (or Object 150) and T-220 (or Object 220). Apart from extra armor, the T-150 only differed on some details from the KV-1 (an improved cupola and a new 700 hp engine are the most important changes). The inside of the tank didn't change, as the extra armor was mounted externally. During testing, the T-150 suffered from overheating in higher gears, even though outside temperatures were well below zero degrees centigrade.

The T-220 was a more radical innovation. The hull was lengthened, a wheel was added and a new gun, the 85 mm F-30 main gun, was mounted. The gun was already successfully tested on the T-28 that fall. Testing of the T-220 started at the end of January 1941, but after one day the 700 hp V-5 engine could not cope with the weight of 62 tons and failed.

Despite these problems, orders were received to mass-produce the T-150, under the name KV-3, in March, as the current tanks of the Soviet army were becoming more and more obsolete. However, the factory and the designers chose to concentrate on developing the T-220 instead, now under the name KV-220. The tank was tested extensively and received a new 850 hp diesel engine with supercharger. However, not only the engine was suffering from the weight of 70 tons. Suspension and torsion bars bent and twisted, and the transmission had problems as well. Still, the tank was able to complete nearly 2,000 km of testing before the start of Operation Barbarossa.

The factory started preparation for mass production again, but was stopped by the Soviet military. Intelligence showed that the Germans were also designing a heavy tank, so the Soviet design would become even more important. If it failed, the Soviet army would not have an adequate counter to the German threat. This meant the design of the KV-3 was again subject to modification of both hull and turret, and a new gun, the 107 mm ZiS-6, was to be mounted on the tank.

Moreover, new, heavier tanks were demanded, most notably the KV-4 heavy tank. With a design weight of 90 tons, this tank was too heavy to go in production, especially taking into account the problems with the transmission that were plaguing the much lighter KV tank. A KV-5 tank, with a hull height of 9 meters, was also ordered, but never got beyond the drawing board. Possibly the most feasible design proposal was the KV-9 heavy assault tank. With a weight of 48 tons, a 122 mm howitzer, and front armor of 135 mm, this was a much more realistic design. Two prototypes of the tank were completed, but the tank never went into mass production. Finally, a turretless prototype, the KV-7, was sent to Moscow for review. The tank mounted multiple guns, and was rejected by Stalin for this reason.

The fate of the prototypes

With the war underway, the KV factories that were experimenting with prototypes focused on mass production of the KV, the only Soviet tank that was truly feared by Germany at the time. The unfinished prototypes were ripped of their experimental turrets and guns and were sent to the front with KV-1 turrets. The T-220 (KV-3) model served under the 124th tank battalion and was destroyed near the Ust-Tosno railway bridge in December 1941. The T-150 was sent to the 123th tank battalion, but its fate is unknown.

Further development of the KV series was halted, but the experience of the testing was used to design the successful IS tank.

Conclusion

The KV was a heavy, slow-moving tank, but the Soviet army wanted something even stronger. That meant all parts had to be more durable and able to cope with more weight. During testing, it showed that the designers did not succeed in developing a reliable, versatile heavy tank based on the KV-tank. Ultimately the projects were stopped and the focus of the Soviet tank designers shifted to developing a tank with reasonable weight, good mobility, and sufficient armor. The IS tank was the logical result of their quest.


Historical Gallery

Sources and External Links

USSR
Light Tanks IMS-1 IIBT-2 IIT-45 IIT-26 IIT-60 IITetrarch IIIBT-7 IIIBT-SV IIILTP IIIM3 Light IIIBT-7 artillery IIIT-127 IIIT-46 IIIT-70 IVA-20 IVT-80 IVValentine II VT-50 VIMT-25 VIILTG VIIILTTB IXT-54 ltwt. XT-100 LT
Medium Tanks IVA-32 IVT-28E with F-30 IVT-28 VMatilda IV VT-34 VIA-43 VIT-34-85M VIT-34-85 Rudy VIT-34-85 VIIA-44 VIIKV-13 VIIT-43 VIIT-44-122 VIIIObject 416 VIIIT-54 first prototype VIIIT-44-100 (R) VIIIT-44 IXObject 430 Version II IXT-54 XObject 140 XObject 430 XObject 907 XT-22 medium XT-62A
Heavy Tanks VChurchill III VKV-1S VKV-220-2 VKV-220-2 Beta Test VKV-1 VIKV-2 VIKV-85 VIT-150 VIIIS VIIKV-3 VIIKV-122 VIIIS-2 VIIIIS-3 VIIIIS-6 VIIIKV-5 VIIIKV-4 VIIIIS-5 (Object 730) VIIIIS-3A VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U IXT-10 IXST-I XIS-4 XIS-7 XObject 260
Tank Destroyers IIAT-1 IIISU-76M IIISU-76I IVSU-85B VSU-85 VSU-85I VISU-100 VISU-100Y VIIISU-122S VIISU-152 VIISU-100M1 VIISU-122-44 VIIIISU-152 VIIIISU-130 VIIISU-101 IXObject 704 IXSU-122-54 XObject 263 XObject 268
Self-Propelled Artillery IISU-18 IIISU-26 IVSU-5 VSU-122A VISU-8 VIIS-51 VIISU-14-1 VIIISU-14-2 IX212A XObject 261
Heavy Tanks
USA VT14 VT1 Heavy Tank VIM6 VIIT29 VIIIT26E5 VIIIM6A2E1 VIIIT32 VIIIT34 VIIIT34 B IXM103 XT110E5 XT57 Heavy Tank
UK VChurchill I VExcelsior VIChurchill VII VITOG II* VIIBlack Prince VIIFV201 (A45) VIIICaernarvon IXConqueror XFV215b
Germany IVPz.Kpfw. B2 740 (f) IVDurchbruchswagen 2 VVK 30.01 (H) VIVK 36.01 (H) VIIVK 45.03 VIITiger I VIITiger (P) VIIIVK 100.01 (P) VIIILöwe VIIITiger II VIIIVK 45.02 (P) Ausf. A IXE 75 IXMäuschen IXVK 45.02 (P) Ausf. B XE 100 XMaus XVK 72.01 (K) XPz.Kpfw. VII
France IVB1 VBDR G1 B VIARL 44 VIIAMX M4 mle. 45 VIIIAMX 50 100 VIIIAMX M4 mle. 49 VIIIFCM 50 t IXAMX 50 120 XAMX 50 B
USSR VChurchill III VKV-1S VKV-220-2 VKV-220-2 Beta Test VKV-1 VIKV-2 VIKV-85 VIT-150 VIIIS VIIKV-3 VIIKV-122 VIIIS-2 VIIIIS-3 VIIIIS-6 VIIIKV-5 VIIIKV-4 VIIIIS-5 (Object 730) VIIIIS-3A VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U IXT-10 IXST-I XIS-4 XIS-7 XObject 260
China VIIIS-2 VIIIWZ-111 VIII110 VIII112 IXWZ-111 model 1-4 X113
Japan IIIType 91 Heavy IVType 95 Heavy VO-I Experimental VIHeavy Tank No. VI VIO-I VIIO-Ni VIIIO-Ho IXType 4 Heavy XType 5 Heavy
Czechoslovakia
Sweden VIIIEmil I IXEmil II XKranvagn