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Tiger H1

2023-10-30T23:43:30Z

U3164661: The Tiger 1 was mechanically unreliable

{{About
| about = German heavy tank '''{{PAGENAME}}'''
| usage = other versions
| link = Tiger I (Family)
}}
{{Specs-Card
|code=germ_pzkpfw_VI_ausf_h1_tiger
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
}}

== Description ==

The '''Panzerkampfwagen VI Ausfuehrung H1 (Tiger H1)''' is the first (early-production) variant of the [[Tiger I (Family)|Tiger I heavy tank family]], designed and built by Henschel and used by the German Army during World War II. It offered the German Army its first armoured fighting vehicle equipped with the 88 mm Kampfwagenkanone (KwK) 36 tank gun, developed from the 88 mm Flugabwehrkanone (FlaK) 36 anti-aircraft gun. It was expensive to maintain and mechanically unreliable. Henschel and Ferdinand Porsche were ordered on May 26, 1941, to submit proposals for a 45-ton heavy tank that would be available by June 1942. Porsche developed an improved version of its VK 3001 (P) prototype (which was originally intended to compete for the Panther contract), while Henschel developed two prototypes: a VK 4501 (H) H1 with an 88 mm KwK36 L/56 tank gun and a VK 4501 (H) H2 with a 7.5 cm KwK42 L/70 tank gun. The Henschel VK 4501 (H) H1 prototype was accepted after evaluation, primarily because the Porsche [[VK 45.01 (P)|VK 4501 (P)]] prototype design used a petrol-electric transmission system that required large amounts of copper for the manufacture of its electrical drivetrain components, a strategic war material of which Germany had limited supplies. Early Tiger H1s with the Krupp-designed turret featured a high commander cupola. Later in the war, the design was modified, resulting in the [[Tiger E]], which had a new dome-shaped cast-armour commander's cupola and a ring installed on the commander's cupola to accommodate the mounting of an anti-aircraft light machine gun. There are additionally five S-Mine dischargers on the hull-roof, three on the left side and two on the right. Two Feifel air cleaner units designed for dusty environments are located on the hull's back. Between August 1942 and August 1944, a total of 1,347 units were constructed. The Tiger I was phased out of production after August 1944 in favour of the [[Tiger II (Family)|Tiger II]].

Introduced in the Closed Beta Test for Ground Forces before Update 1.41, the Tiger H1 was the German Army's first truly heavy tank during World War II, due mostly to combat experience against the French and British Matilda heavy tanks, which demonstrated that the German Army needed better armed and armoured tanks. Within 2,500 metres, Tiger H1 had higher penetration than the 75 mm KwK40 L/43 on the [[StuG III (Family)|Sturmgeschütz IIIs]] and [[Pz.IV (Family)|Panzer IVs]] but poorer penetration than the 75 mm KwK42 L/70 on the [[Panther tank (Family)|Panthers]]. At longer ranges, the 88 mm KwK36 L/56 performed better in terms of penetration and accuracy. The Tiger H1, capable of fighting any adversary at any range, is a true marvel of German engineering during World War II and will undoubtedly reward players well.

== General info ==
=== Survivability and armour ===
{{Specs-Tank-Armour}}

[[File:TigerIHTank Armour Angling.png|right|thumbnail|The ideal angling of hull armour on {{PAGENAME}} for maximum effective armour all-around|300px]]
One may feel the need to charge head-on into battle, blaring that 88 mm gun as shells bounce off the front armour while the Schachtellaufwerk suspension system runs over the ground; this is a short-lived strategy.

The Tiger H1 should be played more like a bulky medium tank rather than a heavy tank despite its status, supporting allies from the sideline or from a distance rather than leading directly from the front. This is due to the poor armour arrangement, most of the thickness of the tank is concentrated on the front face of the tank and leaves the sides exposed, especially since this model of tiger has a 'boxier' design. This is even more important to remember as ammunition is stowed along the sides the tank, protected by the inferior side armor. One must remain a distance, exploit the 88 mm long-distance power, and maintain a diamond-shape compound angling to maximize armour thickness against the trailing enemy shells that will inevitably come towards the Tiger's way.

The Tiger H1 is equipped with 12 smoke grenades that can help cover the vehicle while it escapes or repairs. Smoke grenades discharge in 2 salvos of 6 (3 to each side of the turret) covering a 120° sector 10 m in front of the vehicle. The grenades deploy smoke in 4 seconds and last 25 seconds. Both salvos are separated by a 1-minute reload time.

The commander cupola is tall and weak: this can lead APHE shells to detonate inside, knocking out at best the loader or even the commander, loader, and gunner.

'''Armour type:'''

* Rolled homogeneous armour
* Cast homogeneous armour (Gun mantlet, Cupola)

{| class="wikitable"
|-
! Armour !! Front (Slope angle) !! Sides !! Rear (Slope angle) !! Roof
|-
| Hull || 102 mm (9°) ''Front plate'' 62 mm (80°) ''Front glacis'' 102 mm (25°) ''Lower glacis''|| 82 mm ''Top'' 62 mm ''Bottom''|| 82 mm (9°)|| 26 mm
|-
| Turret || 100 mm ''Turret front'' 90 - 200 mm ''Gun mantlet'' || 82 mm || 82 mm || 26 mm
|-
| Cupola || colspan="3" style="text-align:center" | 80 mm (cylindrical) || 26 mm
|}
'''Notes:'''

* Turret front covered by gun mantlet has variable thickness depending on exact place, ranging from 90 to 200 mm of armour.
* Turret side (about 1/3) is covered by attached tracks, adding additional 30 mm of armour.
* While the hull side of the tank is 82 mm, the side where the suspension is located is only 62 mm thick so be aware of this weak point.
* On paper, the best angle is roughly 38.8° with armour all-round being from the front 130 mm.

=== Mobility ===
{{Specs-Tank-Mobility}}


{{tankMobility|abMinHp= 839|rbMinHp= 575}}

=== Modifications and economy ===
{{Specs-Economy}}

For Tier I modifications obtained the vital "Parts" and "Horizontal Drive" modifications as the former will give the Tiger the ability to repair and the latter will provide a much-needed boost to the Tiger's slow turret traverse rate.

== Armaments ==
{{Specs-Tank-Armaments}}
=== Main armament ===
{{Specs-Tank-Weapon|1}}

{{main|KwK36 (88 mm)}}

{| class="wikitable" style="text-align:center" width="100%"
|-
! colspan="5" | [[KwK36 (88 mm)|88 mm KwK36]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
|-
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
! Stock !! Upgraded !! Full !! Expert !! Aced
! Stock !! Full !! Expert !! Aced
|-
! ''Arcade''
| rowspan="2" | 92 || rowspan="2" | -8°/+16° || rowspan="2" | ±180° || rowspan="2" | N/A || 9.71 || 13.44 || 16.32 || 18.05 || 19.20 || rowspan="2" | 9.62 || rowspan="2" | 8.51 || rowspan="2" | 7.84 || rowspan="2" | 7.40
|-
! ''Realistic''
| 7.10 || 8.40 || 10.20 || 11.30 || 12.00
|-
|}

==== Ammunition ====

* '''PzGr 39''': The go-to shell for all Tiger H1 drivers as this is arguably the best. It will do incredible damage to any tank shot by it, except SPAA, or any extremely thin armoured vehicles. Heavier tanks like the IS-1, IS-2, or American heavy tanks are able to resist the round at longer ranges, but well-placed shots from close range or sides will do the job. All other medium and light tanks will be history as soon as this shell make contact with them. This shell, however, will almost always over-penetrate all but the most armoured SPAA vehicles, so it is best to use HE or machine gun fire on thin-skinned vehicles.
* '''PzGr ''': This shell is also very useful. It has very similar characteristics as PzGr 39, but sacrifices some penetration for about 150% more Explosive Filler, meaning even more damage than already powerful PzGr 39. It is recommended to carry some of these shells and use them regularly, as the penetration is still enough to deal with most targets (at least when being down-tiered), and switch to PzGr 39 when shooting targets far away, or those that are heavily armoured.
* '''Hl.Gr. 39''': On paper the HEAT rounds don't bring anything new to the table, however they can be used as a substitute for the HE shells due to the greater explosive mass and still gives a fighting chance if caught with pants down.
* '''Sprgr. L/4.5''': The HE shell is completely ineffective against all but SPAA or the AI artillery on the Kursk and Ash River maps, and the machine gun mounted on the Tiger has proven quite capable of dealing with these. Keep a small supply of this shell on hand if planning to flank the enemy and take out their SPAA or artillery, but avoid them for everything else.

{{:KwK36 (88 mm)/Ammunition|PzGr 39, Pzgr., Hl.Gr 39, Sprgr. L/4.5}}

==== [[Ammo racks]] ====

{| class="wikitable" style="text-align:center"
|-
! Full ammo
! 1st rack empty
! 2nd rack empty
! 3rd rack empty
! 4th rack empty
! 5th rack empty
! 6th rack empty
! 7th rack empty
! 8th rack empty
! 9th rack empty
! 10th rack empty
! Visual discrepancy
|-
| '''92''' || 77 ''(+15)'' || 61 ''(+31)'' || 45 ''(+47)'' || 29 ''(+63)'' || 25 ''(+67)'' || 21 ''(+71)'' || 17 ''(+75)'' || 13 ''(+79)'' || 7 ''(+85)'' || 1 ''(+91)'' || No
|-
|}
[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
'''Notes''':

* As they are modeled by sets of 2, shells disappear from the rack only after you fire both shells in the set
* Large sides empty: 29 ''(+63)'' shells.

=== Machine guns ===
{{Specs-Tank-Weapon|2}}

{{main|MG34 (7.92 mm)}}

{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="5" | [[MG34 (7.92 mm)|7.92 mm MG34]]
|-
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
|-
| Coaxial || 4,350 (150) || 900 || N/A || N/A
|-
|}

== Usage in battles ==

The main role of the Tiger tank was to eliminate enemy tanks at a far range, similar to behaving like a sniping tank, or a Tank Destroyer. Nonetheless, the Tiger can excel at brawling with other tanks at medium, even possibly against two [[Panther D|Panther]] tanks to close range and escape undamaged. It's recommended to not stay in one place for too long or risk getting outflanked, spotted, or bombed.

While guns like the Soviet [[D-5T (85 mm)|85 mm]] cannon can easily penetrate the Tiger at close range, the Tiger can stay nearly invulnerable at long range. The 88 can take out any tank on Rank 3 at any combat range but may have problems with the [[IS-1]]'s 120 mm front armour at some ranges. When having to close in a bit, it is generally advisable to angle the hull to the sides by about 30°, improving the armour rating enough that it can keep away 85 mm shells very well, even at closer ranges. The {{PAGENAME}} is still vulnerable to the [[SU-152|SU-152s]] howitzer and its HE shell at any range. So whenever encountering these heavy-calibre vehicles, it should be prioritized and eliminated first.

The Tiger's hull has many flat areas that can be easily penetrated. To maximize the angles and thus the protection, the tank should be angled about 40º to either side. An easy way of angling your tank is to make sure the corner of the hull is pointed at the enemy. The side armour is strong enough for such angling, and is flat as well. The turret is more complicated. It features many pieces of armour that overlap and such, and as such will either be exceptionally strong or be penetrated easily. As such, avoid relying on the turret to absorb shells. On the other hand, opponents will also try to avoid hitting the turret, as there is a chance to not penetrate.

Mobility-wise the {{PAGENAME}} is pretty good for a heavy tank. It is much faster than a [[KV-1 (ZiS-5)|KV-1]] and about as equally fast as the [[IS-1]], although medium tanks like the [[T-34-85]] can easily outmanoeuvre all three at close range. Try to use the Tiger's mobility to keep a distance rather than for closing in on a target. Don't be afraid to use the speed to fall back if necessary as the Tiger cannot survive close range engagements on open terrain vs. mediums, due to the slow turret and the vulnerability to the 85 mm guns on Soviet medium tanks.

The Tiger has a very bad turret traverse, it is recommended to get the "Turret Drive" traverse modification as fast as possible. Even then, the Tiger will have to turn the tank in the direction of the traverse to make the most of the time to quickly engage a target. This, together with very exposed ammo racks on both sides (though one side can be emptied by reducing the ammo stowage) means that facing multiple enemies at once is almost a certain end to the Tiger tank. The best option is to take cover from one tank and fire on the other.

As far as ammo is concerned, the default PzGr 39 will be the standard AP rounds many players will use. The second AP round available, the Pzgr., is also a good round to use against the enemy as the shell contains more explosive filler than the default, but suffers from a lower penetration value compared to the PzGr 39. The HEAT rounds offer consistent penetration at all ranges including more than 2,000 m. However, they provide less damage upon penetration. HEAT rounds usually are usually not used as the primary ammunition type for this sole reason. Upgrading the tank should mainly be dedicated to turret traverse, hull traverse (as this is needed even with the turret traverse upgrade) and engine upgrades. The Tiger's 88 has massive destructive power. Unlike the other German tank of its rank, all armed with 75 mm guns, the Tiger can easily knock out all the mediums like the T-34s, M4 Shermans with a single shot, and still be a threat against heavy tanks like the IS-1s. If it doesn't destroy a tank in one hit, most of the enemy crew will be wounded or incapacitated. The best place to aim with the 88 is either at the gunner's side of the enemy turret to incapacitate an enemy's firepower, or between the driver and the gunner which would usually wound or knock out most of the enemy crew at once. Attacking from the side also presents a good shot opportunity, as the best shot placement is right below the turret on the hull where most of the tank ammunition are stored, giving a big chance for an ammo-rack explosion.

When driving the Tiger, plan ahead on where it will drive. Even with engine and track modifications, the {{PAGENAME}} is still a heavy tank and a 90 degree or more turn will almost always mean an immediate standstill as the tank try to make the change in movement. Even small adjustments can knock the speed down a bit. Thus, knowing the terrain and destination is of the utmost importance to preserve its mobility to its fullest extent.

The {{PAGENAME}} is also best used on the flanks of the current maps, as these are usually more open and allow good use of its armour and excellent gun. The centre of the map would seem more logical as there are a lot of enemies, but as has already been established a Tiger taking fire from multiple directions won't last long. Going in a flank and taking down light and medium tanks is an easy task for this beast, and thus a flank can be easily secured if the {{PAGENAME}} is driven carefully. Then, work the {{PAGENAME}} into the enemy sides and rear of the main force in the centre, doing much more damage than if the Tiger faced the force head-on because a shot to the side and rear will set most enemies alight if not outright exploding the ammunition. Able to destroy vehicles in one hit, the Tiger can quickly jump from target to target and eliminate a good number of enemies in its lifespan.

The Tiger H1 is very effective at long range, and should be used accordingly. Players should try to avoid point blank fights with other tanks, since this will often result in the vulnerable sides being exposed. As a sniper or flanker, the tank is wonderful and as long as its sides are not exposed, it will last a long time.

There will be many hard eggs to crack such as the IS- Series, T-34 Series, American Jumbos, and several other tanks that will give the {{PAGENAME}} trouble.

* The Russians have many tanks at the BR able to handle the Tiger H1 easily. The main tank at this BR is the T-34-85's. While it may have very thin armour and is easy to penetrate it is easy to angle and the T-34 is a franking machine, it will drive circles around the Tiger so it needs to be destroyed quick. The IS- Heavy tanks are the second worst nightmare situation. Thick armour and a huge gun. If the IS tank is not destroyed first, it will definitely destroy the Tiger.
* The American Jumbos are similar to the T-34. The 75 mm variant would have trouble to penetrate the Tiger's armour at long ranges, but caution needs to be exercised when they are armed with a 76 mm gun.
* The Japanese tanks all have very thin armour that the 88 mm gun can easily penetrate through with no problem, but their guns at this BR all have enough penetration to deal with the {{PAGENAME}} if it gets a hit on.

'''Against the Tiger H1:'''

'''Light tank''': when dealing with a Tiger I, you must utilise your superior speed and agility to your advantage, to compensate for your weak firepower. If your penetration is less than 100 mm, then manoeuvre to the Tiger's side as that is where you can destroy it. The upper part of the hull side is 80 mm thick, without any angling, meaning that light tanks such as [[M24 (Family)|M24]] can reliably penetrate there. Even the reserve [[BT-5]] can punch through that armour section, though guns with less post-penetration damage will have to shoot several times to ensure that all crew are knocked out. The lower section of the hull side is only 60 mm, meaning that even if the player does not have a high tier light tank and can only use low tier tanks like the M3A3 Stuart, that area can still be penetrated. The Tiger's turret turns slowly, but still be careful to move out of its gun's way. Facing a Tiger I is a hard job because it can penetrate most places on your light tank so a frontal strike against it has a high chance of failing.

'''Medium tank''': with a medium tank, you can more confidently target the Tiger's frontal weak spots. Medium tanks such as [[M4A3 (76) W]], [[T-34-85]], and [[Sherman Firefly]] can all pierce through the Tiger's frontal hull armour when it is not angling. The turret armour is way harder to penetrate as it has some complex bulges, leading to the shells being absorbed. However, an experienced Tiger commander will angle its hull, stacking up the effective thickness to more than ~130 mm thus making it immune to all the above medium tanks. Now, if you cannot flank, aim for the commander's cupola. An explosive-packed shell through there will knock out ~1-3 crew in the turret. If the gunner is knocked out, wait for around 12 seconds for it to replenish a new gunner, then shoot at the cupola again. You can also try breaking the gun barrel, since the muzzle brake is quite large and therefore easier to catch onto shells, damaging the barrel. Note, it is better to avoid shooting at the lower front plate as the transmission behind it will absorb all incoming shells for the crew. Throughout this whole process, the player should be very careful not to get hit as the 88 mm cannon is very potent against most tanks.

'''Heavy tank/tank destroyer''': with a more powerful cannon and perhaps better armour, the player can finally duel the Tiger I with relative ease. For a heavy tank or tank destroyer who sacrifices mobility and/or armour just for superior firepower (e.g. [[IS-2 (Family)|IS-2]], [[ISU-122]]), a Tiger H1 can be penetrated in the hull even if it is angling. Still, do not shoot at the turret and lower front plate where the shells tend to do no damage. Also, try aiming for armour plates that are free of any obstruction, because vehicles who can easily penetrate the Tiger usually have a large calibre gun, their large shells will be bounced or lose penetration should the shell edge impact anything. For example, if you shoot at a Tiger who is facing you, target the dead center of the upper front plate where there is nothing but armour, instead of aiming right next to the driver's port where the armour blocks sticking out will absorb the shell.

'''SPAA''': anti-aircraft guns at this BR cannot really penetrate the Tiger I's armour effectively, but thanks to their fast-firing autocannons SPAAs are great for breaking the Tiger's gun barrel and tracks, assisting your teammates in destroying it. If no supporting fire is near, drop an artillery strike after immobilising the Tiger. Some SPAAs (e.g. [[Phòng không T-34]], [[M42 Duster (Family)|M42]]) have access to AP shells, any shell with more than 60 mm penetration is adequate to penetrate the lower side of the hull. Other than this area, the minimum thickness is 80 mm which is hard for any SPAA. This is an advantage of the Tiger I, although its flat armour performs poorly against heavier cannons, its all-round armour protection is fairly effective against low-penetrating vehicles like SPAAs.

=== Pros and cons ===


'''Pros:'''

* The gun mantlet, MG port and driver's port are particularly hard to penetrate due to their complex, varying shape and thickness
* Decent cannon with adequate accuracy and a range of shells to choose. Stock shell has great penetration and damage, and can knock out common opponents easily with a single shot (e.g. [[T-34-85]], [[M4A2 (76) W]], [[IS-1]], [[M6A1]]). Has another AP that sacrifices a bit penetration for more TNT
* One of the fastest heavy tanks with its top speed of 45 km/h, meaning it can get to some positions quickly alongside friendly medium tanks.
* The box-like hull shape gives the ability to angle. When angling the hull at around 40° and placing yourself far from the enemies (at least 500 m away) the Tiger H1 can resist common tanks like the 76 mm Shermans, T-34-85s and [[M36 Jackson (Family)|M36]]
* Good reverse speed and hull traverse allows it to quickly angle for deflecting shells
* -8° gun depression works well in most hilly terrain
* The rear is surprisingly hard to penetrate, partially due to the slightly-angled armour and partly due to the large exhaust pipes which seem to deflect shells
* The strong gun makes it easy to destroy most opponents at the its battle rating with a single shot, even M4A3E2 Jumbo, as long as you carefully aim for the machine gun port
* The tank is equipped with smoke grenades, which can help escape an undesirable situation alive

'''Cons:'''

* Weak and vertical armour protection. If not angling the Tiger H1 can get destroyed easily by the T-34-85 or 76 mm Sherman. Even if the {{PAGENAME}} is angling, the [[IS-2 (Family)|IS-2]] can still knock it out with a single shot easily
* The upper front plate is extremely vulnerable if it is not angled. It will be penetrated by any vehicle at its BR
* Struggles to penetrate heavy targets frontally like the [[M4A3E2]], [[M26 (Family)|M26]] and [[IS-2 (1944)]]
* Rather slow acceleration limits its short range manoeuvrability
* Slow turret traverse makes it hard to respond to flankers quickly. The [[M18 GMC]] is very common at this BR
* Ammo storage at the hull sides are very easy to explode when hit
* Commander's cupola is tall and easy to penetrate
* Is a big and tall target, easy to get spotted and shot at
* S-Mine dischargers on the hull limits gun depression in certain areas
* Tracks are rather loud so enemies will most times hear you and will be alert, so surprise attacks will be difficult

== History ==

===Development===
The Tiger I heavy tank was arguably the most infamous tank of World War II. The design for this tank began as early as January 1937 when Henschel & Sohn worked on a large "breakthrough" called the "Durchbruchwagen" that weighed about 30 tons on request by the German military.<ref name="ImagesOfWarTiger">Anthony Tucker-Jones. Images Of War Special: Tiger I & Tiger II Great Britain: Pen & Sword Military, 2013</ref> The request was modified over time for more armour and better gun that increased the weight to 36 tons, but this project was dropped in 1938 in favour of the better prototypes VK 30.01(H) and VK 36.01(H). These new prototypes were the start of the usage of the Schachtellaufwerk wheel arrangements, but these also never passed prototype stages and were both cancelled in 1942.

During the development of the prototypes above, the German invasion of France showed that the Allied tanks such as the Somua, Char B1, and [[Matilda Mk II|Matilda II]] were impervious to their current anti-tank weaponry and a need for better armoured and armed tanks was emphasized. So on May 26, 1941, Henschel and Porsche were asked to submit designs for a 45-ton heavy tank that was to be ready for demonstration by June 1942. During their development in June 1941, Germany initiated Operation Barbarossa against the Soviet Union and was shocked by appearance of the [[T-34 (1941)|T-34]] and [[KV-1 (ZiS-5)|KV-1]] tanks that were invulnerable to all but the most potent anti-tank weapon in German inventory, one of which was the [[KwK36 (88 mm)|88 mm KwK36 cannon]]. The potency of the 88 mm cannon against the heavily armoured tanks that the Germans faced had Hitler ordered that the heavy tank design undertaken by Henschel and Porsche to utilize the 88 mm as its main armament instead of a 75 mm cannon.

The designs of the tank were finalized and ready for demonstration on April 20, 1942, Hitler's birthday, and showed the VK 45.01(H) and the [[VK 45.01 (P)]]. The demonstration and subsequent evaluations on the two designs determined that the Henschel variant was superior to the Porsche variant, proving more reliable, more mobile, and more easily produced than the Porsche. This caused the Henschel variant to be adopted as the Panzerkampfwagen VI Tiger and production started in August 1942. The Porsche variant had many chassis produced as Ferdinand Porsche thought the design would win, so the chassis was instead used in the [[Ferdinand]] tank destroyer.

===Design===
What perhaps made the Tiger I so unique in tank development and German doctrine is a change of focus between the three characteristics of the tank; with more emphasis to firepower and armour than to mobility. The Tiger I contained the large 88 mm KwK36 cannon which was very accurate and powerful, being able to penetrate every Allied armour present at its introduction. The armour on the Tiger I was also one of the greatest at the time, with an astounding 102 mm of armour on the front hull armour, 82 mm on the side superstructure and rear, and 120 mm on the gun mantlet. The armour was vertical faced so no sloping benefits were present like on the [[Panther D|Panther]]. All these armour thicknesses proved invulnerable to most Allied anti-tank weaponry at the time, requiring more creative methods in a shot placement to disable the tank. The mobility, while taken with less emphasis in the development, was still respectable at the time as the tank weighed about 57 metric tons, about 20 tons more than other country's main tanks, yet is able to keep up a speed of 38 km/h (Maximum speed was 45 km/h, but an engine governor was installed to preserve the engine life).

The tank utilized a torsion-bar suspension system in a Schachtellaufwerk overlapping pattern, making the Tiger one of the first German tank design to use the pattern. While the design gave the Tiger I great flotation due to the use of a wider track for lower ground pressure, it had disadvantages in environment and maintenance. In the Eastern Front, mud and other foreign objects could be jammed in between the overlapping wheels, which would freeze in the winter and jam the wheels; the overlapping wheels also were a hassle to change out, in order to replace one wheel in the inside of the suspension, it requires the removal of at least nine other wheels in order to access it. The first 250 Tiger tanks used a Maybach V-12 HL210 engine with 650 hp before switching over to the more powerful Maybach V-12 HL230 engine with 700 hp. The engine proved adequate in propelling the tank but was still considered underpowered for the tank weight.

The Tiger I, as innovative as it is to tank warfare, was a strain on German war production. The tank was over-engineered, taking much more man-hour and materials for its worth as a war machine. Cost-wise, two [[Pz.IV G|Panzer IVs]] or four [[StuG III G|StuG IIIs]] can be built for the cost of one Tiger I. The tank was also expensive to maintain and took lots of fuel to run. These attributed to the low number of only 1,354 Tiger Is produced from 1942 to August 1944.<ref name="ImagesOfWarTiger">Anthony Tucker-Jones. Images Of War Special: Tiger I & Tiger II Great Britain: Pen & Sword Military, 2013</ref>

===Variants===
There are three main production Tiger I variants known today, the "early-production", "mid-production", and "late-production" models. The Early-production model, designated as the Panzerkampfwagen VI Ausf. H, were the first few batches and are distinguished by their drum-style cupola with an over-swinging hatch. The model also had two vehicle lights on the front side of the tank and dished steel wheels with rubber tyres. The Mid-production featured Zimmerit paste and a side-swinging cupola with accommodation for a machine gun mounted on the cupola. The vehicle light was also changed to just one placed right in the front of the hull armour. The mid-production was also redesignated in May 1943 as the [[Tiger E|Panzerkampfwagen VI Ausf. E]]. Late-production models featured the removal of the Zimmerit paste as there was an assumed flaw with it, and the overlapping wheels were instead made into interleaving with full-steel road wheels as well, in a manner similar to the [[Tiger II (H)|Tiger II]].

Other specialized variants of the Tiger I was produced as well. A small number of demolition carrier models were field-made in Italy, where it had its main gun replaced by a crane to carry demolition to clear minefields or destroy obstacles. The demolition carrier version was interpreted by Allied intelligence as a BergeTiger, an armoured recovery vehicle, though it is not known if it ever saw service in this role. Another specialized variant produced in 1944 in some numbers was the [[Sturmtiger]], an heavy assault gun with a 38 cm rocket launcher made from a depth charge. 19 of these were made and saw use in all fronts, though its most noteworthy combat action was in the Warsaw Uprising.

===Combat usage===
In its introduction, Hitler ordered the new Tigers to be used in the Leningrad siege in September 1942. However, as the faults of the tank were still not yet fully ironed out at this stage, the mechanical unreliability and the unsuitable terrain caused one of the Tiger Is to be stuck in the swamps and abandoned by its users. This example was then captured by the Red Army and tipped off the Allies of the development of the new Tiger tanks and so developments in countermeasures began. In North Africa, the Tigers saw the first action against the Western Allies in Tunisia in December 1942. Its impact there left an impression on the Allied armour forces, but its myth as an invulnerable tank was shattered when two Tigers were taken out by the British [[Ordnance QF 6-pounder Mk.III (57 mm)|6-pounder anti-tank guns]]. The total loss in that campaign was seven Tigers by February 1943.

Once mass-numbers of Tiger Is were available, they were employed in heavy tank battalions that were to be deployed in breakthrough operations or counter-attacks. Field experience with the Tiger showed that the Tiger's heavyweight proved a nuisance in operational mobility, an example being that small bridges were unable to support the Tiger tank's weight. An attempt to remedy this was to use a snorkel device so the tank could ford rivers as deep as four metres, however, this system was phased out of later production models for cost-savings. The Tiger suffered reliability problems in all of its service life that impeded its effectiveness and its high fuel usage limited its combat operations. Armour recovery of the vehicle was also terrible as three heavy recovery half-tracks were required to tow the tank away, causing a strain on the German support line to keep the Tiger tanks in running order. Despite that, the Tiger I proved superior in terms of armour and armament against the Allies and created massive losses among their armoured forces, causing many soldiers to keep an eye out for the infamous "Tigers".

The impact the Tiger had on the battlefield as the superior tank at its introduction created fame to the commanders and crew operating this tank, further fueling the Tiger's reputation in the war as a killing machine. Some Tiger units were able to achieve kill ratios up to 10:1, and some even higher. Some notable Tiger aces known were Kurt Knispel (168 tank kills), Otto Carius (150+), Johannes Bölter (139+), and Michael Wittmann (138).

However, as the war progressed and the impact of the Tiger's surprise in Kursk and Italy has dissolved, Allied developments gave forth more capable tanks able to defeat the Tiger I tanks. The Soviets solution was to up-gun their [[T-34 (1942)|T-34s]] with an [[D-5T (85 mm)|85 mm gun]] to make the [[T-34-85]], and the Western Allies with the [[M1 (76 mm)|76 mm]] and [[Ordnance QF 17-pounder (76 mm)|17-pounders]] on the [[M4A1 (76) W|M4 Sherman]] and [[Sherman Firefly|Firefly]] respectively. The Tiger went as an highly-invulnerable tank design into a simple heavy tank as the war went on, and it was replaced by the more powerful and more heavily armoured [[Tiger II (H)|Tiger II]] in 1944. Despite its replacement, many Tiger I models still saw use up until the end of World War II.

===Survivors===
Due to the low number of Tiger Is created during the war (1,354, compared to [[Pz.IV H|Panzer IV]]'s 8,550 and the [[M4|M4 Sherman]]'s ~50,000), very few intact Tiger I pieces are left in the world. Today, only seven tanks in various conditions are existent in the world. The most famous of these is the Tiger 131, captured by the British in Tunisia in April 1943, when the crew abandoned the tank due to a [[Ordnance QF 6-pounder Mk.III (57 mm)|6-pounder]] shot from a [[Churchill Mk III|Churchill tank]] jamming the gun mantlet and turret ring, causing it to be unable to aim. The intact sample is also famous for being the only fully operational Tiger I in the world due to a reconstruction effort by the Bovington Tank Museum in the 1990s. However, the Tiger 131 does not run on its original Maybach HL210 engine, as it was taken out to be used as a separate display; rather, it uses the HL230, which was mostly used for the Tiger II. It is still there as a display and remains the museum's most popular exhibit.

{{break}}
{{Navigation-Start|{{Annotation|Archive of the in-game description|An archive of the historical description of the vehicle that was presented in-game prior to Update 1.55 'Royal Armour'}}}}
{{Navigation-First-Simple-Line}}
Work on the creation of a heavy tank began in 1937. Only after the attack on the USSR were the tactical and technical requirements needed for this new war machine met. The tank was designed by the Henschel company, led by Erwin Aders.

Production was handled by Henschel and Weggman factories, which made about 450 tanks from July 1942 to August 1943.

The first 495 vehicles included equipment that enabled the crossing of water obstacles up to 4 metres deep. Beginning with the 251st tank, the Maybach HL 230 P30 engine (600 hp) was replaced with a Maybach HL 230 P45 (700 hp). The Tiger was armed with an 88 mm 8,8 cm KwK36 L/56 gun, which was a tank version of the famous Flak 18/36 anti-aircraft gun. In the spring and summer of 1943, the tank received smoke grenade launchers and mortars for launching anti-personnel mines.

The Pz.Kpfw. VI Tiger entered service with heavy tank battalions. The tanks were first used in the fall of 1942, on the Leningrad front, in the 502nd heavy tank battalion. In December 1942, in North Africa, Tigers entered service with the 501st battalion.

The first tanks which arrived often broke, owing to the haste with which they were put into mass production. The vehicle was very heavy, with low manoeuvrability. It consumed 10 liters of fuel every 1 km. A full fuel tank, 567 liters, was enough for only two and a half hours of combat work, which was one of the tank's major drawbacks. But this was all compensated for by the battle machine's simplicity and ease of operation. Tank operators who served in Tigers were constantly praising its transmission and steering. The tank's armour also gave the crew a high chance of surviving battle, even if the tank was disabled.
{{Navigation-End}}

== Media ==


;Skins

* [https://live.warthunder.com/feed/camouflages/?vehicle=germ_pzkpfw_VI_ausf_h1_tiger Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]

;Sights

* [https://live.warthunder.com/post/675135/en/ RideR2's Realistic gunsight (TZF4a, TZF 5a/b/d/e/f/f2, TZF 9b/b1/c/d, TZF 12/a) for Pzkpfw II, Pzkpfw III, Pzkpfw IV, Pzkpfw V, Pzkpfw VI]

;Videos
{{Youtube-gallery|ryx7Uxo_3X0|'''The Shooting Range #250''' - ''Pages of History'' section at 03:40 discusses the {{PAGENAME}}.|tcIeR_s6fp8|'''The Shooting Range #204''' - ''Pages of History'' section at 04:50 discusses the Tiger I and the VK 45.01 (P).|9_txEPailKc|'''The Shooting Range #92''' - ''Tactics & Strategy'' section at 10:50 discusses the Tiger I.|QEz1MgTjUAw|'''Pz.Kpfw. VI Tiger Ausf. H1''' - ''War Thunder Official Channel''|kFQd8TYt6Ew|'''Tank Chats #17 Tiger I''' - ''The Tank Museum''}}

== See also ==


;Related development

* [[Tiger E]]

== External links ==


* [[wt:en/news/4528-profile-pz-kpfw-vi-tiger-ausf-h1-en|[Vehicle Profile] Pz.Kpfw. VI Tiger Ausf. H1]]
* [[wt:en/news/2641--en|[Vehicle Profile] Pzkpfw VI "Tiger" Ausf. H1]]
* [[wikipedia:Tiger_I|[Wikipedia] Tiger I]]
* [https://tanks-encyclopedia.com/ww2/nazi_germany/Panzer-VI_Tiger.php <nowiki>[Tanks Encyclopedia]</nowiki> Panzerkampfwagen VI Tiger Ausf.E (Sd.Kfz.181) Tiger I]
* [https://www.militaryfactory.com/armor/detail.asp?armor_id=72 <nowiki>[Military Factory]</nowiki> SdKfz 181 Panzer VI / Tiger I]

=== References ===
<references />

{{Germany heavy tanks}}

IS-3

2021-03-16T15:42:49Z

U3164661: BR to 7.0 from 7.3

{{Specs-Card
|code=ussr_is_3
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
}}

== Description ==

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]]. The IS-3 keeps the same [[D-25T (122 mm)|D-25T]] gun as its predecessor while ''drastically'' upgrading its armour without hindering mobility too much.

Anyone familiar with the [[IS-2]] and [[IS-2 (1944)]] will sit comfortably behind the driver's controls of this behemoth.

As with previous IS models, the IS-3 sports the same D-25T 122mm cannon, with its awesome destructive potential. Experienced tankers will know which weak points to look for on most targets, although the weapon's effectiveness increases dramatically once the BR-417D ammunition is researched, upgrading its penetration from 207mm to 230mm while retaining most of the HE filler. At 7.0 BR, the IS-3 will come up against many other heavy tanks with large, slow reloading guns, making the playing field much more even. Despite this, always beware the faster, lightly armoured targets such as the [[Ru 251]], [[Leopard I]], and other vehicles that can essentially ignore the IS-3's armour like the [[FV4005|FV4005]]. As with the IS-2 mod. 1944, the IS-3 has a spindle-mounted Heavy Machine Gun, good for warding off strafing aircraft or deterring light vehicles.

The IS-3 once again demonstrates sub-par maneuverability, despite being relatively light for a heavy tank. It has an engine that produces a measly 671 horsepower, making the vehicle feel sluggish when attempting to initiate a turn from both standstills and when moving. Its' acceleration also leaves much to be desired, however, it does have a reasonably high top speed, and usually will reach it eventually regardless of the surface it is driving on. Fortunately, as with all late Soviet heavy tanks, the reverse speed of the IS-3 is very respectable, often allowing it the time necessary to back out of bad situations to reload or repair. The reverse gears and low forward gears allow the vehicle to climb surprisingly sharp slopes, despite what some might expect from such a large vehicle.

The most obvious changes over the previous IS tanks are of course the redesigned turret and the sharply angled 'pike' nose. The front is not only angled, but the armour is also relatively thick, with 110mm on both the top and bottom, angled at 54°-56° and 54° respectively. As with previous designs, the IS-3 has somewhat sub-par side and rear armour, and angling should be avoided. The redesigned turret is much more resilient than the older designs, with more angling, a much smaller flat area around the mantlet, and significantly thicker casting. The tank is somewhat vulnerable to trap shots and turret ring penetration - these can be somewhat negated by depressing the gun and blocking the vulnerable areas.

The IS-3 is the definition of a 'breakthrough' tank, which excels at close-range, front-on conflict where the chances of flanking are minimal and drivers can take advantage of the heavy frontal armour and reverse speed. When up-tiered, or against certain enemies with HEAT, HESH or ATGMs, IS-3 drivers should play cautiously as the tank is extremely vulnerable to high-penetration and chemical rounds.

== General info ==
[[File:IS-3 Screenshot 1.jpg|thumb|Screenshot of the IS-3 on [[Berlin (Ground Forces)|Berlin]]]]

=== Survivability and armour ===
{{Specs-Tank-Armour}}

'''Armour type:'''

* Rolled homogeneous armour (Hull, Turret roof)
* Cast homogeneous armour (Turret)

{| class="wikitable"
|-
! Armour !! Front !! Sides !! Rear !! Roof
|-
| Hull || 110 mm (54-56°) ''Front glacis'' 110 mm (54°) ''Lower glacis'' || 90 mm (0-40°) ''Top'' 20 mm (60°) ''Bottom'' || 60 mm (47°) ''Top'' 60 mm (41-42°) ''Bottom'' || 20 mm
|-
| Turret || 250 mm (1-78°) ''Turret front'' 100 + 250 mm (9-79°) ''Gun mantlet''|| 75-220 mm (33-69°) || 70-120 mm (22-52°) || 20 mm ''Front, Hatch roof'' 40 mm ''Center'' 75 mm ''Sides''
|-
|}
'''Notes:'''

* Suspension wheels are 20 mm thick while tracks are 30 mm thick.
* The thickest armour of the tank is at the front – the "beak" at the front of the hull raises the effective thickness of the armour from 110 to around 180 – 200 mm, depending on the exact spot.
* The turret front of the IS-3 is an also fairly well armoured, with 250 mm of heavily sloped armour equating to around 400 mm effective thickness.
* Turret side armour is not equal throughout its length. In the side middle, it is 130 mm, then bordering the rear armour is 150 mm thick.
* Gun mantlet side and bottom are boosted by the 250 mm of the turret front, whereas the top of gun mantlet has no armour behind it.
* Side armour of the hull has an additional 5 mm of sheet metal on above the suspension area.
* Turret ring is 200mm thick with a 20mm "collar" covering the front and sides.
* Upper half of the side armor is at a very steep angle, meaning conventional rounds will simply bounce

=== Mobility ===
{{Specs-Tank-Mobility}}


{{tankMobility|abMinHp= 671|rbMinHp= 460}}

The mobility and speed of the IS-3 is decent, and is somewhere between other heavy tanks of the same tier and mediums tanks of the same tier. The IS-3 drives very similar to its predecessors the [[IS-1]] and [[IS-2]]. Whenever the IS-3 turns at all, much of the speed of the tank is instantly lost, making the hull turn rate lacklustre, especially without neutral steering. This is, of course, akin to those previously mentioned predecessors.

=== Modifications and economy ===
{{Specs-Economy}}

== Armaments ==
{{Specs-Tank-Armaments}}
[[File:IS-3 Screenshot 2.jpg|thumb|Screenshot of the IS-3 on [[Berlin (Ground Forces)|Berlin]]]]

=== Main armament ===
{{Specs-Tank-Weapon|1}}

{{main|D-25T (122 mm)}}

The IS-3 carries a heavy 122 mm D-25T cannon, the same weapon mounted on the IS-2 and IS-4M, as well as other variants of the IS-3. This cannon, based on a heavy howitzer, is a highly-effective weapon capable of hitting extremely hard. However, it has an extremely slow reload speed, and rather poor gun depression.

The D-25T cannon fires large 122 mm shells, which are relatively effective against most targets at the IS-3's BR. However, the cannon's effectiveness is hampered by two main drawbacks - relatively bad gun handling (particularly the gun depression and turret rotation speed), and the rediculously long reload rate. Firstly, the turret has a weak gun depression of just 3 degrees as well as a slow rotation speed, which can hamper the IS-3's ability to get its gun on target quickly and efficiently. Secondly, and more importantly, the IS-3 has a massive gun reload of 20+ seconds. This means that the IS-3 is more suited for a longer-ranged, "heavy fire support" role, as it makes use of the gun's massive punching power without running into situations where the IS-3's gun cannot reload quickly enough to return fire. However, these two drawbacks are compensated for by the IS-3's powerful ammunition, capable of dealing with most targets at its BR. While it retains the 3 shell types found on the previous IS-2, the IS-3's gun also gets access to the BR-471D APCBC shell. This shell gets less TNT filler than the other shells, but gains improved penetration of 230 mm at point-blank range. This shell is capable of frontally-penetrating most tanks at the IS-3's BR.

{| class="wikitable" style="text-align:center" width="100%"
|-
! colspan="5" | [[D-25T (122 mm)|122 mm D-25T]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
|-
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
! Stock !! Upgraded !! Full !! Expert !! Aced
! Stock !! Full !! Expert !! Aced
|-
! ''Arcade''
| rowspan="2" | 28 || rowspan="2" | -3°/+20° || rowspan="2" | ±180° || rowspan="2" | N/A || 7.3 || 10.1 || 12.2 || 13.5 || 14.4 || rowspan="2" | 26.00 || rowspan="2" | 23.00 || rowspan="2" | 21.20 || rowspan="2" | 20.00
|-
! ''Realistic''
| 5.4 || 6.3 || 7.7 || 8.4 || 9.0
|-
|}

==== Ammunition ====
{| class="wikitable sortable" style="text-align:center" width="100%"
! colspan="8" | Penetration statistics
|-
! rowspan="2" data-sort-type="text" | Ammunition
! rowspan="2" | Type of warhead
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''
|-
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
|-
| BR-471 || APHE || 205 || 201 || 183 || 162 || 144 || 128
|-
| BR-471B || APHEBC || 205 || 203 || 191 || 178 || 166 || 155
|-
| BR-471D || APCBC || 230 || 227 || 215 || 200 || 186 || 173
|-
| OF-471 || HE || 37 || 37 || 37 || 37 || 37 || 37
|-
|}
{| class="wikitable sortable" style="text-align:center" width="100%"
! colspan="10" | Shell details
|-
! rowspan="2" data-sort-type="text" | Ammunition
! rowspan="2" | Type of warhead
! rowspan="2" | Velocity (m/s)
! rowspan="2" | Projectile Mass (kg)
! rowspan="2" | Fuse delay (m)
! rowspan="2" | Fuse sensitivity (mm)
! rowspan="2" | Explosive Mass (TNT equivalent) (g)
! colspan="3" | Ricochet
|-
! 0% !! 50% !! 100%
|-
| BR-471 || APHE || 795 || 25 || 1.2 || 19 || 246.4 || 47° || 60° || 65°
|-
| BR-471B || APHEBC || 795 || 25 || 1.2 || 19 || 246.4 || 48° || 63° || 71°
|-
| BR-471D || APCBC || 800 || 25 || 1.2 || 19 || 192.5 || 48° || 63° || 71°
|-
| OF-471 || HE || 800 || 25 || 0 || 0.1 || 3,600 || 79° || 80° || 81°
|-
|}

==== [[Ammo racks]] ====
[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]

{| class="wikitable" style="text-align:center"
|-
! Full ammo
! 1st rack empty
! 2nd rack empty
! 3rd rack empty
! 4th rack empty
! 5th rack empty
! 6th rack empty
! Visual discrepancy
|-
| '''28''' || 23 ''(+5)'' || 17 ''(+11)'' || 13 ''(+15)'' || 10 ''(+18)'' || 8 ''(+20)'' || 1 ''(+27)'' || No
|-
|}

The D-25T cannon fires two-piece ammunition that are stored all around the crew compartment. The majority of the projectiles are found lining the sides and rear of the turret while the majority of the propellant found in the hull, with two large piles flanking the driver and a few kept on the hull floor and rear. Next to the cannon breech on the loader's side is a small ready rack containing 5 propellant charges, with the 5 accompanying projectiles found to the loader's right against the turret side. The time it takes the loader to load one round into the ready rack from the stowage racks is about 21 seconds.

* Recommended ammo load is 12, which empty all of the racks but racks 1 and 6.
* Ammo Rack 1 is a ready rack, and takes priority in being filled at the beginning of the battle, then fills racks 6 through 2.
* Full reload speed will be realized as long as ammo exists in the ready racks. If all three ready racks are empty, a penalty to reload speed will occur.
* Simply not firing when the gun is loaded will load ammo from racks 2-6 into rack 1, as long as there is ammo in racks 2-6. Firing will interrupt the loading of the ready racks.

=== Machine guns ===
{{Specs-Tank-Weapon|2}}
{{Specs-Tank-Weapon|3}}

{{main|DShK (12.7 mm)|DT (7.62 mm)}}

The IS-3 carries two secondary machine guns, being a 12.7 mm DShK machine gun on the turret roof as well as a coaxial 7.62 mm DT machine gun. The DT machine gun is relatively inneffective, as its small calibre prevents it from doing any sort of real damage against targets with any armour. As well, the coaxial mounting prevents the DT from firing at air targets effectively. The DShK, on the other hand, can be a more potent weapon when used against lightly-armoured vehicles or aircraft. The gun can penetrate the sides/back of some IFVs/SPAAs/light-armoured vehicles, and also has good firing angles allowing it to engage enemy aircraft and helicopters.

{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="5" | [[DShK (12.7 mm)|12.7 mm DShK]]
|-
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
|-
| Pintle || 300 (50) || 600 || -4°/+85° || ±180°
|-
|}
{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="5" | [[DT (7.62 mm)|7.62 mm DT]]
|-
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
|-
| Coaxial || 2,000 (63) || 600 || N/A || N/A
|-
|}

== Usage in battles ==


The IS-3, continuing the tradition of the Russian IS line of heavy tanks, sports a powerful 122mm cannon, strong frontal armour and reasonable mobility for its class. As with its predecessors, it excels at dispatching anything it can penetrate with its explosive-filled rounds, and relies heavily on its excellent reverse speed and sharply angled armour to keep itself out of trouble. However, an IS-3 commander will increasingly encounter HEAT, HESH and ATGMs which pose a serious threat to the vehicle. The IS-3 also has a rather exposed and exploitable trap-shot directly under the gun barrel when the turret is facing directly forward, which even conventional rounds can use. It is also recommended to make sure that the enemy tank has around the same height advantage as you, as the armor plate on top of the gun breech can be penetrated by enemy shells shot from above, damaging the gun breech and possibly killing your tank.

One important thing to note is that the stock grind of this vehicle is rather bad. When stock, the vehicle is sluggish, and has a shell that really struggles to penetrate some of the well armored tanks of BRs 6.7-7.7, which you will regularly face. This will lead to you being more of a support tank when stock, but as you reasearch more modifications the IS-3 becomes better.

[[File:IS-3 Screenshot 3.jpg|thumb|Screenshot of the IS-3 on [[Berlin (Ground Forces)|Berlin]]]]

=== General Gameplay ===
One of the most important points about the IS-3 is that angling does not work - your pike nose will become easier to get through as you angle your tank, so handle all enemies head-on, if possible. However your gun is still the same 122 mm cannon as on the initial [[IS-2]] at which is situated at a lower battle rating, so it is understandable that you will struggle to penetrate many heavy enemies frontally now at the higher battle rating, even with the new shell that can go through 230mm of armor at close range.

In the current meta, faster vehicles are more viable than heavier ones, and the IS-3 is at a big disadvantage especially in Realistic. Your armour is amazing in a downtier (to Battle Ratings 6.3 / 6.7), but it's basically non-existent in an uptier (to Battle Ratings 8.0 / 8.3, where you start seeing APFSDS and HEAT shells all the time), so knowing when to take this tank out is also a big part of gameplay with it.

'''Arcade Battles'''

Surprisingly, the IS-3 can do very well in Arcade. Many enemies in Arcade don't seem to know that the best way to kill the IS-3 with a conventional round is via a shot-trap, so your survivability is increased. Moreover, when fully upgraded, the IS-3 becomes extremely mobile in Arcade allowing you to get into cover after shooting, or quickly advance on an unsuspecting enemy. The best strategy against a single enemy is to just rush them - the terrain usually bounces your tank around slightly making it very difficult to penetrate, and the sheer sight of a heavy tank speeding towards the enemy will cause some panic.

The more experienced tanker will know when to take the IS-3 out in battle and when to use other vehicles. If you know that the game is an uptier (e.g. by checking the statistics tab, or by the map draw) you should decide against the IS-3 and take out a tank like the [[BMP-1]], which fits better into the high tier meta. Also, long-range engagements are a gamble, since your top round and long reload times make it difficult to successfully attack enemies, while they might have a HEAT shell that disregards distance. However, the rush strategy can work here as well, especially if you turn your tank in random directions once in a while, making it harder for opponents to aim at you.

'''Realistic Battles'''

In Realistic, the IS-3 is much more difficult to play, because enemies take more time to aim at weakspots and your mobility is toned down. Due to that, you need to take time with your own shots and know your opponents - is there an ammo-rank in the side of the Caernarvon, or should you shoot at the driver's position? and etc. Generally, you need to play with stealth in Realistic, because the person who shoots first is usually the one that gets the kill. Flanking can, and does, work with the IS-3, not because of speed, but because your teammates are shot and you can return fire at the perpetrators and continue your advance. Moreover, some light tanks that are prevalent at the higher Battle Ratings outright cannot penetrate you with their main guns (most of them have ATGMs, though).

Against ATGMs, it's a good idea to use your machine guns to shoot at the ground in front of your tank - this makes a small smoke-screen out of dirt and rubble that makes it difficult for enemies to aim their ATGMs. Keep in mind though, that you should still move your tank away from the initial position, because enemies will try to predict where you are going (it's a good idea to shoot machine guns increasingly to the left, while moving to the right, because it causes a sense of your tank moving with machine guns, while actually, you're moving in the other direction).

'''General Tips'''

The IS-3 is relatively versatile, but excels in close-range combat against conventional rounds - it is very good at taking on other heavy tanks such as the [[T32|T32]] and [[Caernarvon]].

* It has a reasonably decent top speed, and on solid ground, acceptable acceleration, allowing it to reach cap points and combat areas fairly promptly and set up in positions to allow it to make the most of the frontal armour.
* When down tiered (6.3-6.7 games), the IS-3 performs excellently, able to push forward and play its 'breakthrough' role with impunity.
* Good climbing capabilities allow the IS-3 to reach some surprising positions for sniping or supporting teammates pushing points. Despite the gun's effectiveness being reduced at the range, the armour of the vehicle becomes much more effective as weak spots become significantly harder to hit.
* Since the IS-3 can keep up with most medium tanks like the Centurions, Panthers or T-44s, it can be played as early-game heavy support for those lighter, more vulnerable hulls to assist in taking objectives.
* In up tiered games (7.7-8.3), the IS-3 can come across a lot of chemical rounds and must be played significantly more carefully, as its armour simply cannot compete with the high penetration of these rounds.

Play this tank almost any way that is favourable. A few tips to increase this vehicle's performance:

* Always face towards the enemies directly, avoid exposing the weak hull sides.
* Cover the frontal weak spots if necessary with the gun's large barrel by pointing it downwards. It's better to have the gun barrel destroyed than it is to lose crew members and be potentially unable to reverse out of bad situations.
* Stop only to fire. Movement makes the weak spots harder to target. Even when there is no destination to move to, go back and forth a few meters just so that the IS-3 hull wobbles a bit on start and stop.
* Plan aggressive pushes and movements around enemy locations. The gun has negligible depression and very bad horizontal traverse, making reacting to enemies slow and risky, and impossible if they're on lower ground.
* Avoid engaging vehicles over hills by climbing the hill as it will be hard to aim with only -3° depression and the lower plate will be vulnerable due to the angling.
* Avoid fighting tanks with HEAT/HESH/APFSDS.
* Be careful when brawling at extremely close ranges, as the top of the turret is quite vulnerable due to the vehicle's low profile.
* Avoid facing elevated opponents, as this decreases LOS thickness for hull and exposes turret top.
* Carrying less ammo helps increase survivability from penetrating shots to the turret (ammunition is spread around the edges of the turret).

=== The Stock Grind ===
This vehicle can be a pain to play when stock, because enemies will try to kill you in any way, often by setting you on fire 3 times in a row. Your tracks and gun barrel are frequent targets as well, and without Parts or FPE gameplay is going to be painful. Due to this, you must '''research Parts and FPE first''', this is extremely important. Generally, you would want to be behind your teammates, to let them get shot more instead of you, when reloaded you can poke out and shoot your shot, right before going back into the cover or behind teammates. Sniping is an option, but it's not the most viable since there's quite a lot of bullet drop and missing your shots will cause the very long reload.

=== Pros and cons ===


'''Pros''':

* Very good frontal armour. Upper and lower plates are basically immune to all conventional shells
* First Soviet heavy tank that comes with the V-shaped hull and ridiculously strong spaced armour lining the sides
* Really strong turret. Even the sides of the turret are heavily armoured and angled
* Very powerful 122 mm gun; top APHE shell has high penetration and very good damage potential
* Good top speed and manoeuvrability

'''Cons''':

* Horrifying reload speed; despite the armour, fighting two tanks at once is ill-advised
* Armor is still no match for APDS and HEAT
* Terrible gun depression; finding a good hull-down location to use the gun is difficult
* Despite the good turret, the left side of the gun mantlet can be penetrated by conventional rounds with good penetration (Like the 88 mm shell found on the Tiger II)
* Bottom of the gun mantlet is an infamous shot trap
* While a small target, the entirety of the turret ring is exposed
* Ammo is strewn throughout the entire crew compartment
* Roof-mounted 12.7 mm machine gun only has a 50 box magazine before needing to reload
* Only four crew members in a small crew compartment; any APHE shell that penetrates will likely knock out the entire crew
* 122mm gun is the same as the IS-2 with the exception of the new BR-471D shell and will struggle to knock out hull down American mediums and heavies like the M48 Patton and T32

== History ==


===Development===
Late in 1944, development of the next generation of the IS heavy tanks started, following after the [[IS-2 (1944)|IS-2]] tank. The tank was to be better in armour compared to the IS-2 as a response to the new [[Tiger II (H)|Tiger II]] that showed up and is able to penetrate the front armour of the hull. The project was codenamed ''Kirovets-1'' and was headed by General Nikolai Dukhov.<ref name="ZalogaIS">Zaloga Steven. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> Design bureaus at the Chelyabinsk Tractor Plant "Tankograd" (ChTZ) and Factory No. 100 worked on the design of the vehicle. A focus on the armour improvement came from a study by an engineer in the teams that most tank losses occurred from hits to the front turret, with the front hull coming in second. The two design bureaus came up with their own ideas on how to make the armour of the tank more effective, with ChTZ developing an extremely rounded turret and No.100 developing a new angled front armour in a shape of a "beak". Soviet command decided that the design should use both features in the armour as both ideas were promising. The prototype vehicle was then produced at ChTZ and completed in October 1944 when it trialled and accepted for production as the '''IS-3'''. Production for the IS-3 started in 1945 at ChTZ alongside the IS-2 production. As the first tanks rolled off production lines, it was determined that the design was rushed and unproven with its multiple mechanical problems, some of which included the armour plates welds cracking open from the vibration of cross-country movement and muzzle blast from the gun. Because of this, the IS-3 was not available in large numbers to be committed into battle, leading to their absence in the final months of World War II before Germany surrendered in May 1945.<ref name="ZalogaIS" />

Despite its rough introduction and prevalent mechanical issues, the IS-3 continued production with gradual fixes to the front hull, final drive, and engine mounts. The Chelyabinsk factory produced IS-3s from 1945 to 1951 for a total of 1,800 tanks.<ref name="ZalogaIS" />

===Usage===
Though the IS-3 was not available in large numbers at the start, the Soviets attempted to transport the IS-3 to Germany in April 1945 to assist in the fightings, but they arrived too late to be committed to any fighting. It is reported that the IS-3 did see service during the Soviet invasion of Manchuria in August 1945 to fulfil Stalin's promise in the Yalta Conference to invade Japan after the capitulation of Germany, however not much information is present about this topic.<ref name="ZalogaIS" />

The end of the most destructive war in history did not waver the Soviet's opinion of the IS-3 however, and the Soviet command had the 52 IS-3 tanks from the 2nd Guards Tank Army paraded in the Berlin Victory Parade on September 7, 1945.<ref name="ZalogaIS" /> The reveal of the IS-3 in the parade came as a huge shock to the Western Allies who saw the IS-3 as a nigh-invulnerable breakthrough tank with their heavy armour. The response to the tank was there to develop their own heavy tanks able to do the same job and with a gun able to fight the IS-3, such as the British [[Conqueror|Conqueror]] and the American [[M103|M103]] heavy tanks. Despite its very ominous stature, the IS-3 was still plagued with mechanical issues at this point with its poor armour quality and mechanical reliability. A short modernization program from 1948 to 1952 was made to fix these issues with tanks in production and in the depots with no change to the name designation. The IS-3 was then modernized further in the 1960s to keep it up with changing times. The modifications done were similar to the IS-2M, which gave the IS-3 extra external fuel tanks, storage bins, and protective side skirts as well as an improved engine, engine filtration, new radios, new machine guns, new gun optics, and many more small changes. The modernized IS-3 was named the ''IS-3M''.<ref name="ZalogaIS" />

One of the few actions the IS-3 saw in the post-war era with the Soviet Union was in 1956 during the Hungarian Revolution with a single heavy tank regiment. The Soviet's heavy tank regiments used to consist of 21 heavy tanks during World War II. In 1947, the regiment composition is changed to between 44-46 heavy tanks and 21 heavy assault guns in a mixed formation. Another change between 1958-1959 saw this mixed unit changed to consist of only heavy tanks but now consists of up to 100 heavy tanks. Despite their armour, a number of heavy tanks were lost before the Soviets were able to crush the revolution. The IS-3 after that did not see much action afterwards in the Soviet Union's hands before it started to be replaced by the newer [[T-10M|T-10]] heavy tank in the 1960s. During this time, many heavy tanks were transported to the border between the Soviet Union and China in face of the rising tension between the two countries.<ref name="ZalogaIS" />

The IS-3 would also be supplied to the Soviet Union's allies such as Poland, Czechoslovakia, North Korea, and Egypt. Poland and Czechoslovakia never adopted the tank after trials however, thus leaving only North Korea and Egypt as the main foreign users of the IS-3. The Egyptians used the IS-3M, 100 of which were received from the Soviets, against the Israelis in the Six-Day War in 1967. Of all the tanks used in that war, the IS-3M was the most feared by the Israelis due to the thick front armour. Israeli infantry's standard anti-tank weaponry could not penetrate through the front, and tanks as modern as the [[M48A1|M48 Patton]] also could not defeat the IS-3M. Nevertheless, the better tactics and training among the Israeli tank units were able to prevail against the IS-3M, with the IS-3 being commented by the Egyptians for its low rate of fire and outdated fire-controls to the crew's deficiency in combat. Of the 100, 73 tanks were lost during the Six-Day War. The Israeli managed to capture a number of IS-3 and pressed them into service, though only for a short period before its faults become more problematic than its benefits. The engine on the IS-3 proved to be unsuitable in the desert climate of the Middle East, and an attempt by the Israeli to alleviate this by replacing the engine with one from the [[T-54 (1951)|T-54]], though this did not prove fruitful. In the Yom Kippur War in 1973, both the Egyptians and Israeli used the IS-3M to a smaller degree than the Six Day War, the IS-3 not seeing much combat in the Egyptian forces and were used as dug-in pillboxes on the Jordan River by the Israelis.<ref name="ZalogaIS" />

===Decline and Discontinuation===
With the introduction of the lighter and more mobile [[T-54 (1951)|T-54]] main battle tank in the 1950s, the IS-3 saw less usage among the Soviet front-line as it started to become obsolete. Further development to improve and continue the IS tank series became the [[IS-4M|IS-4]], IS-7, and the [[T-10M|T-10]] tanks. However, in 1960, Nikita Khrushchev, the new premier of the Soviet Union after Stalin died, ordered heavy tank production to be terminated in wake of a new military strategy of missiles rather than conventional forces.<ref name="ZalogaIS" /> His orders are not without reason, heavy tanks are difficult to maintain and transport across the huge Soviet Union, which also did not have many bridges that could support a heavy tank. Another reason was the changing anti-tank technology that made tank armour extremely vulnerable, especially against the new anti-tank missiles that are becoming more and more efficient at their task in destroying tanks. Still, the order did not mean the dissolution of heavy tank units as by 1978, there were still up to 2,300 heavy tanks in the Far East. To this day, many heavy tanks are still either in inactive reserves or dug in as pillboxes along the borders of the Soviet Union.<ref name="ZalogaIS" /> The heavy tank's place in the Soviet Union's military was replaced by the main battle tanks (MBT) like the T-64, which presented a much better firepower, armour, and mobility for only a weight of 35 tons, a technological sign on the rising prevalence of the MBT.

=== In-game description ===
In spite of the fact that the IS-2 lived up to expectations, a decision was made a year after the end of the war to create a tank with even higher characteristics. Its unique welded hull and cast turret construction significantly increased its armour strength in comparison to the IS-2, from which it took many key parts and components.

The hull was welded together from rolled armour plates and contained no cast armour pieces. The dual-sloping inclined nose design allowed a driver's hatch to be placed in it, significantly improved visibility in the field and provided high armour strength to the frontal hull. For increased fire safety, its fuel tanks were moved from the fighting compartment to the engine compartment. It was armed with a 122 mm D-25T cannon with a coaxial 7.62 mm DT machine gun. The turret's roof was equipped with a 12.7 mm DShK anti-aircraft machine gun. It had no bow or rear machine guns.

At the beginning of their deployment, a range of flaws resulting from a number of design errors and miscalculations was revealed in these tanks. Among other issues, these included failures in the engine, gearbox, and parts of the armoured hull in the region of the engine compartment. In 1948-1952, all IS-3 tanks were reworked and modernised. The engine brackets were reinforced, the gearbox fixings changed, the underturret plate strengthened, the main friction coupling design updated, and the sealing enhanced on the final drive and road wheels. The 10-RK radio set was replaced with the 10-RT radio set. These changes increased the tank's mass to 48.8 tonnes.

The first experimental group of IS-3 heavy tanks left their factories in 1945. In total, 2,311 of them were made by mid-1946.
They were not deployed in combat in the Great Patriotic War. There are some indications that the IS-3 was used in the defeat of the Japanese army in August 1945.

== Media ==


;Videos
{{Youtube-gallery|_-YJo8JRBEM|'''Shooting Range #190''' - ''Metal Beasts'' section at 1:00 discusses the IS-3.}}

;Skins

* [http://live.warthunder.com/feed/camouflages/?q=%23is3 Skins and camouflages for the IS-3 from live.warthunder]

==References==
<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 ==


* [http://forum.warthunder.com/index.php?/topic/227061-vehicle-profile-is-3/#entry4370635 [Vehicle Profile<nowiki>]</nowiki> IS-3]

{{USSR heavy tanks}}