Difference between revisions of "Ikv 103"

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{{Specs-Card|code=sw_ikv_103}}
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{{Specs-Card
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|code=sw_ikv_103
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
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}}
  
 
== Description ==
 
== Description ==
 
<!-- ''In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 
<!-- ''In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
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[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
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The '''{{Specs|name}} '''originated from Sweden's requirement in 1949 for an assault gun, that was meant to be light, cheap and small. The Ikv 72 fulfilled this request. But in 1956 the tank was upgraded to the Ikv 102 standard. Soon, this tank was also improved, and the Ikv 103 was born. Compared to the original Ikv 72, it featured a new 105mm cannon instead of the original 75mm. A new armored roof protected the crew, the original engine was replaced by the Volvo B42 and the air intake was moved to grills on the rear of the vehicle, instead of through the crew compartment.
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{{Break}}
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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Swedish tank destroyer {{Battle-rating}}. It was introduced in [[Update 1.97 "Viking Fury"]].
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Introduced in [[Update 1.97 "Viking Fury"]] and just like other Swedish assault guns, the '''Infanterikanonvagn 103 '''is a very small vehicle, with thin armour and good firepower. Featuring a 105mm gun with a HEAT-FS round, which is unusual at such low BR, the tank is capable of dealing with tanks like the T95. Although it has neutral steering, the tank mobility is mediocre, it lacks an MG, which is necessary to destroy fences that may stop your HEAT shells and the armour is very unreliable, it can even be penetrated by 12.7mm HMGs, making the tank extremely vulnerable to aircraft or nearby artillery.
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
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<!-- Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat? If necessary use a visual template to indicate the most secure and weak zones of the armour. -->
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{{Specs-Tank-Armour}}
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The armour of the Ikv 103 is between 18.5mm to 5mm of thickness. This armour shouldn’t be considered as survivable since every round you face will most likely penetrate and destroy most of what’s left inside the tank. The thin side-armour has the occasional ability to result in overpenetration, but any frontal attack usually has enough force to activate most shell fuses. The tank is also incredibly weak against chemical rounds and aerial attacks due to the hull break featured on the vehicle. It is heavily recommended to avoid any form of damage since even artillery fire has the possibility of guaranteed destruction. Due to this low survivability, taking the maximum amount of ammunition isn’t something to frown upon. Thanks to the short length of the round, as well as compact storage, ammunition explosions are quite rare.
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<!-- ''Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat? If necessary use a visual template to indicate the most secure and weak zones of the armour.'' -->
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The armour of the Ikv 103 is between 5 and 18.5 mm of thickness. This kind of armour shouldn't be considered as survivable since any round will penetrate it and destroy most of what's left inside the SPG. One could argue, that the front is decently protected, but there is a giant visible hole in front of the gunner, which can be hit by a machine gun easily.
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Since the hole exists, any chemical ammunition will instantly destroy the {{PAGENAME}} regardless of where it hits. It is heavily recommended to avoid any form of damage since artillery fire is guaranteed to destroy the SPG even in the case of a close miss.
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The thin side armour has the occasional ability to result in overpenetration and often fails to set off APHE fuses, but any frontal armour will activate them.
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The SPG is also incredibly weak against aerial attacks. The roof won't protect from any calibre larger than a 7.7 mm MG, and even that much is not guaranteed. But, since it actually exists, it makes less knowledgeable fighters attack something else instead, as they often look for an open-topped tank first.
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Thanks to the short length of the rounds, as well as compact storage on the hull floor, ammunition explosions are quite rare. Due to this, taking the maximum amount of ammunition isn't something to frown upon.
  
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{| class="wikitable"
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! Armour !! Front (Slope angle) !! Sides !! Rear !! Roof
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|-
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| Hull || 18.5 mm (42°) ''Upper Glacis'' <br> 12 mm (28°) ''Lower Glacis'' <br> 12 mm (37°) ''Front Sides'' || 7 mm ''Upper Crew Compartment'' <br> 6 mm ''Lower hull'' <br> 6 mm ''Upper engine Compartment'' || 12 mm ''Lower'' <br> 5 mm ''Engine Compartment'' || 5 mm ''Crew Compartment''
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5 mm ''Rear''
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|-
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| Turret || colspan="4" | 18.5 mm (Various Angles) ''Gun mantlet''
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|-
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|}
 
=== Mobility ===
 
=== Mobility ===
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{{Specs-Tank-Mobility}}
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
  
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{{tankMobility|abMinHp= 190|rbMinHp= 133}}The Ikv 103 sports a good engine with a fairly high RPM giving it a lot of torque for climbing a lot of obstacles and average terrain. Although the top speed never exceeds 50, the Ikv 103 cruises comfortably around 40-45 kph no matter the surface below it. The vehicle finds no issue traversing snowy and sandy terrain thanks to the low weight and good track surface, but struggles in deep waters due to the low chassis it sports. The reverse rate of the Ikv 103 is also quite good at 11 kph. Even if this speed can’t hold a candle to the regular speed the 103 has, the reverse rate is still enough to safely peek over hills and reverse back into cover before getting fired upon.
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{{tankMobility|abMinHp=190|rbMinHp=133}}
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The Ikv 103 sports a good engine with a fairly high RPM giving it a lot of torque for climbing a lot of obstacles and average terrain. Although the top speed never exceeds 50 km/h, the Ikv 103 cruises comfortably around 40-45 km/h on a straight line and 25-35 km/h on uneven terrain, depending on the driving level and modules unlocked, no matter the surface below it. The vehicle finds no issue traversing snowy and sandy terrain thanks to the low weight and good track surface, but struggles in deep waters due to the low chassis it sports. The reverse rate of the Ikv 103 is also quite good at 11 km/h. Even if this speed can't hold a candle to the regular speed the 103 has, the reverse rate is still enough to safely peek over hills and reverse back into cover before getting fired upon.
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=== Modifications and economy ===
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{{Specs-Economy}}
  
 
== Armaments ==
 
== Armaments ==
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{{Specs-Tank-Armaments}}
 
=== Main armament ===
 
=== Main armament ===
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<!-- Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: {{main|Name of the weapon}}. Describe in general terms the ammunition available for the main gun. Advise about how to use them and how to fill the ammunition storage. -->
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{{Specs-Tank-Weapon|1}}
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{{main|kan Ikv (105 mm)}}
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<!-- ''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.'' -->
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{{main|kan Ikv 103 (105 mm)}}
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The Ikv 103 is outfitted with a 105 mm cannon firing heavy shells with a reload of 8 to 10 seconds depending on crew qualifications. This cannon is unusually short for its calibre, firing heavy shells with low-velocity. The gun is aimed manually without the help of electrical equipment, resulting in a slow traverse rate. At maximum, the gun traverses at 8° per second, resulting in many deaths at closer ranges. The stock gun accuracy is above average.
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The gun has a significant recoil, which can mess with the aim in RB/SB and will slightly move the tank backwards. The recoil can also be used as an advantage to fly off the hill as fast as possible before an enemy started firing back.
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Although the early psgr m/49 lacks significant amount of angled penetration and post-penetration damage, it works just fine at medium to long range. It can also be easily launched over cover at 450 m range while the SPG is fully concealed, which makes it useful in any situation. The later slpsgr m/65 HEATFS round packs up to 400 mm of flat penetration, generally penetrating anything it sees and making the post-penetration much deadlier than before. This later shell also features a higher velocity than the previous round, so it might actually hit moving targets.
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Unfortunately, a lot of heavy tanks have near-impenetrable machine gun ports and even HEATFS will fail to get through them, so the gun cannot be fired entirely without care. If the {{PAGENAME}} is used as a backup along with the 7.0 lineup, it will often fail to penetrate or bounce off the turret of many US heavy tanks due to their sheer thickness.
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This SPG uses X1.9-3.5 scope again unlike the [[Pvkv m/43 (1963)|Pvkv m/43]], so it's difficult for it to fight at long range.
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This makes the gun most effective at medium ranges, where the traverse is ideal, and the shell velocity isn't crucial. It should be noted that the incredible gun depression allows the Ikv 103 to fire directly from extreme angles allowing it to suddenly engage targets in RB without the risk of overexposing the tank, something which becomes incredibly useful to increase the vehicles survivability.
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{| class="wikitable" style="text-align:center" width="100%"
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|-
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! colspan="5" | [[kan Ikv 103 (105 mm)|105 mm kan Ikv 103]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
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|-
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! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
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! Stock !! Upgraded !! Full !! Expert !! Aced
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! Stock !! Full !! Expert !! Aced
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|-
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! ''Arcade''
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| rowspan="2" | 24 || rowspan="2" | -16°/+20° || rowspan="2" | ±10° || rowspan="2" | N/A || 7.0 || 9.8 || 11.8 || 13.1 || 13.9 || rowspan="2" | 10.40 || rowspan="2" | 9.20 || rowspan="2" | 8.48 || rowspan="2" | 8.00
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|-
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! ''Realistic''
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| 4.8 || 5.6 || 6.8 || 7.5 || 8.0
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|-
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|}
  
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The Ikv 103 is outfitted with a 105mm cannon firing heavy shells with a reload of 10 or 13 seconds depending on crew qualifications. This cannon is unusually short for its caliber, firing heavy shells with low-velocity. Although the early Psgr m/49 lacks significant penetration and post-penetration damage, the later Slpsgr m/65 HEAT-FS round packs up to 400mm of penetration, easily penetrating anything it sees with devastating results. This later shell features a higher velocity than the previous round, as well as more explosive filler making the post-penetration much deadlier than before. The gun is aimed manually without the help of electrical equipment, results in a slow traverse rate. At maximum, the gun traverses at 8° per second, resulting in many deaths at closer ranges. This makes the gun most effective at medium ranges, where the traverse is ideal, and the shell velocity isn’t crucial. It should be noted that the incredible gun depression allows the Ikv 103 to fire from extreme angles allowing it to safely engage targets without the risk of overexposing the tank, something which becomes incredibly useful to increase the vehicles survivability.
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==== Ammunition ====
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* '''psgr m/49''', HEAT - This stock shell offers great penetration values and should give you no trouble penetrating the upper glacis of common enemies like the Panther and Pershing series tanks. Even heavy tanks such as the Tiger II will also be vulnerable to this shell. Though it does suffer from the usual characteristics of HEAT which is the low muzzle velocity and sensitive fuse.
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* '''sgr m/34 LT''', HE - This shell is able to destroy some medium and heavy tanks in one hit by attacking their roof, but some heavy tanks in up-tier already have 26 mm RHA thick roofs, making them effectively invulnerable to it.
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* '''slpsgr m/65''', HEATFS - The HEATFS shell is an upgrade compared to the regular HEAT shells. The penetration is most noticeably increased. It also has a slightly faster muzzle velocity, which is helpful for sniping. However the major downside is its cost. In most situations, the stock HEAT shell will suffice.
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* '''rökgr m/49''', Smoke - The smoke shell will help blind enemies to allow you to move behind cover.
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{{:kan Ikv 103 (105 mm)/Ammunition|psgr m/49, sgr m/34 LT, rökgr m/49, slpsgr m/65}}
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==== [[Ammo racks]] ====
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[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
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<!-- '''Last updated: 2.39.0.106''' -->
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{| class="wikitable" style="text-align:center"
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|-
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! Full<br>ammo
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! 1st<br>rack empty
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! 2nd<br>rack empty
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! Visual<br>discrepancy
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|-
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| '''24''' || 19&nbsp;''(+5)'' || 1&nbsp;''(+23)'' ||No
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|-
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|}
  
 
== Usage in battles ==
 
== Usage in battles ==
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<!-- Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB). -->
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<!-- ''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
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The Ikv 103 is a nimble vehicle with a small silhouette compared to its peers. The lightweight and powerful gun set it apart from other vehicles at the battle rating. The general playstyle can be compared to the Jpz 4-5 found in the German tech tree. This playstyle is a more aggressive spin on tank destroying than usual, where the vehicle has to make use of positioning rather than frontal survivability. The Ikv 103 can’t use common sniping locations very effectively since any form of enemy retaliation will destroy the vehicle completely. Instead, the 103 needs to drive full speed to various locations where enemies are unlikely to expect danger. Although this playstyle requires a lot of map knowledge, the reward is quite high for a successful flank, thanks to the devastating cannon the Ikv 103 carries. Thanks to the light vehicle weight and strong engine, the Ikv 103 is also able to climb a lot of obstacles, something that helps a lot when fighting on bad terrain. However, maps that lack terrain entirely cripple the 103’s performance quite significantly, since the tank cannot hide, resulting in a lot of face-to-face engagements, which the Ikv 103 almost always lose.
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The Ikv 103 is a nimble vehicle with a small silhouette compared to its peers. The lightweight and powerful gun set it apart from other vehicles at the battle rating.  
 +
 
 +
The general playstyle can be compared to the Jpz 4-5 found in the German tech tree, as the vehicle has to make use of positioning rather than frontal survivability. The Ikv 103 can't use common sniping locations effectively since any form of enemy retaliation will destroy the vehicle completely. Instead, the 103 needs to drive full speed to various locations where enemies are unlikely to expect danger. Although this playstyle requires a lot of map knowledge, the reward is quite high for a successful flank, thanks to the devastating cannon the Ikv 103 carries.  
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Thanks to the light vehicle weight and strong engine, the Ikv 103 is also able to climb a lot of obstacles, something that helps a lot when fighting on bad terrain. However, maps that lack terrain entirely cripple the 103's performance quite significantly, since the tank cannot hide, resulting in a lot of face-to-face engagements, which the Ikv 103 almost always lose.
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In AB, when it's impossible to find a good hill or the enemy is just too good, one can use this SPG as a mortar to bombard enemy tanks at about 450 m range with HEAT straight out of cover. Any cover that completely covers the SPG will work at this point, whether it's a random rock or terrain. It's also technically possible to fire over shallow hills while standing on them at ranges of about 300 m, but this is not entirely safe and constantly leads to situations, in which {{PAGENAME}} is flanked or sniped. This playstyle works quite well over flat plains and some sniping hills, which are generally incapable of stopping shells with low velocity, but will likely block high-velocity APHE of all enemy tanks. Use binoculars to track enemy movements and to pre-aim. Be careful to not provoke other HEAT tanks into an artillery battle unless you are sure about your aim, as the {{PAGENAME}} won't survive even a single HE/HEAT hit.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
Line 34: Line 120:
  
 
* Excellent HEAT round for its rank, able to penetrate the upper glacis plate of the Tiger II
 
* Excellent HEAT round for its rank, able to penetrate the upper glacis plate of the Tiger II
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* Above average mobility, able to secure crucial positions or even flank the enemy
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* Excellent upgraded HEATFS round, useful even way outside of tanks own rank (technically can penetrate [[T95]])
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* Good speed, able to secure crucial positions or even flank the enemy
 
* Neutral steering
 
* Neutral steering
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* Able to hull-break light vehicles
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* Small silhouette, can completely hide behind medium tanks hull or cover
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* Small silhouette
 
 
* Incredible gun depression
 
* Incredible gun depression
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* Due to having a roof, will not be as interesting to fighters as previous SPG models (although it won't really save from them)
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* Can work as artillery in AB, with not many tanks being able to do anything about it, but to ask for an air raid
  
 
'''Cons:'''
 
'''Cons:'''
  
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* Poor armor, sides able to be penetrated by heavy machine guns, and even rifle caliber bullets behind the tracks
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* Poor armour, counts as open-topped, sides able to be penetrated even by rifle-calibre bullets, especially behind the tracks - Ikv 103 must rely on stealth
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* Has hull-break
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* No MG to destroy light fences that can fuse the HEAT shells
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* No MG to destroy light fences that can fuze your HEAT shells
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* Will struggle through any obstacles due to its low mass
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* Slow gun traverse
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* Slow gun traverse, makes aiming in CQB or at a moving target harder
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* Vehicle reverses slightly when firing, forcing you to reacquire range of target after every shot
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* HEAT shell has a relatively low muzzle velocity, may be hard to fire accurately over long ranges
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* HEATFS shell is expensive and should thus be used conservatively
  
 
== History ==
 
== History ==
 
<!-- ''Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 
<!-- ''Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
  
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The [[Ikv 72|Infanterikanonvagn 72]] was a project started in 1949 by Sweden for an assault gun. The intended role of this vehicle was to support the infantry in the attack, replacing towed artillery guns. The design was to be small, and of light weight, around 6 tons. This was to reduce costs so a larger amount could be produced. The first prototype from Landsverk, completed in 1950, was armed only with three machine guns. This was insufficient, and it was re-armed with a 75 mm cannon, the same gun from the [[Strv m/42 EH|Strv m/42]]. It was a small, lightly armored vehicle, with a casemate superstructure housing the 75 mm gun. It had a crew of 4, and it was open topped. Starting in 1956, the Ikv 72 was upgraded to the Ikv 102 standard. This upgrade added an armored roof for the crew compartment and a 105 mm gun replaced the 75 mm gun. The Ikv 102, in turn, was upgraded to the Ikv 103 standard. The Ikv 103 featured an improved engine, the Volvo B42 engine. The air intake was moved to grills on the rear of the vehicle, instead of through the crew compartment.
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The [[Ikv 72|Infanterikanonvagn 72]] was a project started in 1949 by Sweden for an assault gun. The intended role of this vehicle was to support the infantry in the attack, replacing towed artillery guns. The design was to be small, and of light weight, around 6 tons. This was to reduce costs so a larger amount could be produced. The first prototype from Landsverk, completed in 1950, was armed only with three machine guns. This was insufficient, and it was re-armed with a 75 mm cannon, the same gun from the [[Strv m/42 EH|Strv m/42]]. It was a small, lightly armoured vehicle, with a casemate superstructure housing the 75 mm gun. It had a crew of 4, and it was open topped. Starting in 1956, the Ikv 72 was upgraded to the Ikv 102 standard. This upgrade added an armoured roof for the crew compartment and a 105 mm gun replaced the 75 mm gun. The Ikv 102, in turn, was upgraded to the Ikv 103 standard. The Ikv 103 featured an improved engine, the Volvo B42 engine. The air intake was moved to grills on the rear of the vehicle, instead of through the crew compartment.
  
 
=== [[wt:en/news/6600-development-ikv-103-heat-mortar-en|Devblog]] ===
 
=== [[wt:en/news/6600-development-ikv-103-heat-mortar-en|Devblog]] ===
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In 1949, the procurement division of the Swedish army placed an order for the development of a light assault self-propelled gun to substitute the [[Sav m/43 (1946)|Sav m/43]] SPG. Three companies took on the work: AB Landsverk took on the development of the platform, Volvo was responsible for the powertrain, and Bofors for the armament. In fact, three versions of the vehicle for different purposes were planned at first: one with a 75 mm cannon, a machine-gun-equipped modification, and also a special one that was intended for the deployment of specific weaponry, such as flamethrowers and rocket launchers. Thus, a light (merely eight tonnes in all), tracked infantry-support vehicle was produced, with an open cabin and bulletproof armour. 
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In 1949, the procurement division of the Swedish army placed an order for the development of a light assault self-propelled gun to substitute the [[Sav m/43 (1946)|Sav m/43]] SPG. Three companies took on the work: AB Landsverk took on the development of the platform, Volvo was responsible for the powertrain, and Bofors for the armament. In fact, three versions of the vehicle for different purposes were planned at first: one with a 75 mm cannon, a machine-gun-equipped modification, and also a special one that was intended for the deployment of specific weaponry, such as flamethrowers and rocket launchers. Thus, a light (merely eight tonnes in all), tracked infantry-support vehicle was produced, with an open cabin and bulletproof armour.
  
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In 1952, a cannon-equipped version, under the designation the Ikv 72 (short for “infanterikanonvagn”, meaning “cannon-equipped infantry-support vehicle” in Swedish), was put into service. A little later, the SPG’s were re-equipped with 105 mm howitzers and the cabin was retrofitted with a roof, which could protect the crew from bullets and shrapnel. This modification received the designation Ikv 102. Meanwhile, the Swedish army ordered another series of the vehicle with an upgraded chassis to allow installation of a new air-cooled engine, while the gun and the armour remained the same as the Ikv 102’s. This new version was designated Ikv 103. The Ikv 102 and 103 SPGs remained in use by the Swedish army until the mid-1970s, when they were replaced with the [[Ikv 91]] SPG.
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In 1952, a cannon-equipped version, under the designation the Ikv 72 (short for "infanterikanonvagn", meaning "cannon-equipped infantry-support vehicle" in Swedish), was put into service. A little later, the SPGs were re-equipped with 105 mm howitzers and the cabin was retrofitted with a roof, which could protect the crew from bullets and shrapnel. This modification received the designation Ikv 102. Meanwhile, the Swedish army ordered another series of the vehicle with an upgraded chassis to allow installation of a new air-cooled engine, while the gun and the armour remained the same as the Ikv 102's. This new version was designated Ikv 103. The Ikv 102 and 103 SPGs remained in use by the Swedish army until the mid-1970s, when they were replaced with the [[Ikv 91]] SPG.
  
 
== Media ==
 
== Media ==
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<!-- Excellent additions to the article would be video guides, screenshots from the game, and photos. -->
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<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
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{{Youtube-gallery|YdRN17QiW1M|"400mm PEN HEAT" - "PhlyDaily"}}
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;Skins
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* [https://live.warthunder.com/feed/camouflages/?vehicle=sw_ikv_103 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
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;Images
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<gallery mode="packed" heights="150">
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File:Ikv 103 WTWallpaper 01.jpg|
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File:Ikv 103 WTWallpaper 02.jpg|
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File:Ikv 103 WTWallpaper 03.jpg|
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File:Ikv 103 WTWallpaper 04.jpg|
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File:Ikv 103 WTWallpaper 05.jpg|
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File:Ikv 103 WTWallpaper 06.jpg|
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</gallery>
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;Videos
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{{Youtube-gallery|YdRN17QiW1M|"400mm PEN HEAT" - "PhlyDaily"|4_cJ1CpEatw|'''Best gun depression''' discusses the {{PAGENAME}} at 2:19 - ''War Thunder Official Channel''|Tg9u6OE7M8k|'''The Infanterikanonvagn 103 Tank Destroyer''' - ''Orangefan''}}
  
 
== See also ==
 
== See also ==
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''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
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<!--''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;''
 
* ''reference to the series of the vehicles;''
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* ''links to approximate analogues of other nations and research trees.''
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* ''links to approximate analogues of other nations and research trees.''-->
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;Similar hull vehicle
  
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== Bibliography ==
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* [[Ikv 72]]
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* [[UDES 33]]
  
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** GlobalSecurity.org. (n.d.). Infanterikanonvagn 72 / 102 / 103. GlobalSecurity.org. https://www.globalsecurity.org/military/world/europe/ikv-72.htm
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;Similar role
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** Infanterikanonvagn 72. (2020, May 14). In ''Wikipedia''. https://en.wikipedia.org/w/index.php?title=Infanterikanonvagn_72&oldid=956568359
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* [[StuH 42 G]]
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* [[SU-122]]
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* [[105/25 M43]]
  
 
== External links ==
 
== External links ==
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* ''topic on the official game forum;''
 
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* ''other literature.''-->
 
  
 
* [[wt:en/news/6600-development-ikv-103-heat-mortar-en|[Devblog] Ikv 103: HEAT mortar]]
 
* [[wt:en/news/6600-development-ikv-103-heat-mortar-en|[Devblog] Ikv 103: HEAT mortar]]
  
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=== References ===
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;Bibliography
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** GlobalSecurity.org. (n.d.). Infanterikanonvagn 72 / 102 / 103. GlobalSecurity.org. https://www.globalsecurity.org/military/world/europe/ikv-72.htm
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** Infanterikanonvagn 72. (2020, May 14). In ''Wikipedia''. https://en.wikipedia.org/w/index.php?title=Infanterikanonvagn_72&oldid=956568359
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{{TankManufacturer AB Landsverk}}
 
{{Sweden tank destroyers}}
 
{{Sweden tank destroyers}}

Latest revision as of 23:57, 29 October 2024

RANK 5 FRANCE
Somua SM PACK
Ikv 103
sw_ikv_103.png
GarageImage Ikv 103.jpg
Ikv 103
Sweden flag.png Sweden
III Rank
Battle rating:
AB RB SB
4.0 4.0 4.0
Class:
Research:17 000 Specs-Card-Exp.png
Purchase:105 000 Specs-Card-Lion.png
Show in game

Description

The Infanterikanonvagn 103 originated from Sweden's requirement in 1949 for an assault gun, that was meant to be light, cheap and small. The Ikv 72 fulfilled this request. But in 1956 the tank was upgraded to the Ikv 102 standard. Soon, this tank was also improved, and the Ikv 103 was born. Compared to the original Ikv 72, it featured a new 105mm cannon instead of the original 75mm. A new armored roof protected the crew, the original engine was replaced by the Volvo B42 and the air intake was moved to grills on the rear of the vehicle, instead of through the crew compartment.

Introduced in Update 1.97 "Viking Fury" and just like other Swedish assault guns, the Infanterikanonvagn 103 is a very small vehicle, with thin armour and good firepower. Featuring a 105mm gun with a HEAT-FS round, which is unusual at such low BR, the tank is capable of dealing with tanks like the T95. Although it has neutral steering, the tank mobility is mediocre, it lacks an MG, which is necessary to destroy fences that may stop your HEAT shells and the armour is very unreliable, it can even be penetrated by 12.7mm HMGs, making the tank extremely vulnerable to aircraft or nearby artillery.

General info

Survivability and armour

Armourfront / side / back
Hull12 / 6 / 12
Turret18 / 7 / 5
Crew4 people
Visibility58 %

The armour of the Ikv 103 is between 5 and 18.5 mm of thickness. This kind of armour shouldn't be considered as survivable since any round will penetrate it and destroy most of what's left inside the SPG. One could argue, that the front is decently protected, but there is a giant visible hole in front of the gunner, which can be hit by a machine gun easily.

Since the hole exists, any chemical ammunition will instantly destroy the Ikv 103 regardless of where it hits. It is heavily recommended to avoid any form of damage since artillery fire is guaranteed to destroy the SPG even in the case of a close miss.

The thin side armour has the occasional ability to result in overpenetration and often fails to set off APHE fuses, but any frontal armour will activate them.

The SPG is also incredibly weak against aerial attacks. The roof won't protect from any calibre larger than a 7.7 mm MG, and even that much is not guaranteed. But, since it actually exists, it makes less knowledgeable fighters attack something else instead, as they often look for an open-topped tank first.

Thanks to the short length of the rounds, as well as compact storage on the hull floor, ammunition explosions are quite rare. Due to this, taking the maximum amount of ammunition isn't something to frown upon.

Armour Front (Slope angle) Sides Rear Roof
Hull 18.5 mm (42°) Upper Glacis
12 mm (28°) Lower Glacis
12 mm (37°) Front Sides 		7 mm Upper Crew Compartment
6 mm Lower hull
6 mm Upper engine Compartment 		12 mm Lower
5 mm Engine Compartment 		5 mm Crew Compartment

5 mm Rear

Turret 18.5 mm (Various Angles) Gun mantlet

Mobility

Speedforward / back
AB58 / 12 km/h
RB and SB53 / 12 km/h
Number of gears5 forward
1 back
Weight8.8 t
Engine power
AB286 hp
RB and SB150 hp
Power-to-weight ratio
AB32.5 hp/t
RB and SB17.0 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 58 12 8.8 190 286 21.59 32.5
Realistic 53 12 133 150 15.11 17.05

The Ikv 103 sports a good engine with a fairly high RPM giving it a lot of torque for climbing a lot of obstacles and average terrain. Although the top speed never exceeds 50 km/h, the Ikv 103 cruises comfortably around 40-45 km/h on a straight line and 25-35 km/h on uneven terrain, depending on the driving level and modules unlocked, no matter the surface below it. The vehicle finds no issue traversing snowy and sandy terrain thanks to the low weight and good track surface, but struggles in deep waters due to the low chassis it sports. The reverse rate of the Ikv 103 is also quite good at 11 km/h. Even if this speed can't hold a candle to the regular speed the 103 has, the reverse rate is still enough to safely peek over hills and reverse back into cover before getting fired upon.

Modifications and economy

Repair costBasic → Reference
AB1 335 → 1 651 Sl icon.png
RB1 586 → 1 961 Sl icon.png
SB2 017 → 2 495 Sl icon.png
Total cost of modifications30 000 Rp icon.png
58 600 Sl icon.png
Talisman cost1 200 Ge icon.png
Crew training30 000 Sl icon.png
Experts105 000 Sl icon.png
Aces470 Ge icon.png
Research Aces360 000 Rp icon.png
Reward for battleAB / RB / SB
90 / 130 / 170 % Sl icon.png
148 / 148 / 148 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
2 000 Rp icon.png
Cost:
3 900 Sl icon.png
135 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
1 700 Rp icon.png
Cost:
3 300 Sl icon.png
115 Ge icon.png
Mods new tank break.png
Brake System
Research:
1 700 Rp icon.png
Cost:
3 300 Sl icon.png
115 Ge icon.png
Mods new tank filter.png
Filters
Research:
1 900 Rp icon.png
Cost:
3 700 Sl icon.png
130 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
3 200 Rp icon.png
Cost:
6 300 Sl icon.png
220 Ge icon.png
Mods new tank engine.png
Engine
Research:
3 200 Rp icon.png
Cost:
6 300 Sl icon.png
220 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
2 000 Rp icon.png
Cost:
3 900 Sl icon.png
135 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
1 700 Rp icon.png
Cost:
3 300 Sl icon.png
115 Ge icon.png
Mods tank reinforcement sw.png
Crew Replenishment
Research:
1 900 Rp icon.png
Cost:
3 700 Sl icon.png
130 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
2 000 Rp icon.png
Cost:
3 900 Sl icon.png
135 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
1 700 Rp icon.png
Cost:
3 300 Sl icon.png
115 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
1 900 Rp icon.png
Cost:
3 700 Sl icon.png
130 Ge icon.png
Mods tank ammo.png
105mm_sw_kan_Smoke_ammo_pack
Research:
1 900 Rp icon.png
Cost:
3 700 Sl icon.png
130 Ge icon.png
Mods tank ammo.png
105mm_sw_kan_HEAT_ammo_pack
Research:
3 200 Rp icon.png
Cost:
6 300 Sl icon.png
220 Ge icon.png

Armaments

Main armament

105 mm kan Ikv 103 cannon
Ammunition24 rounds
Reloadbasic crew → aces
10.4 → 8.0 s
Vertical guidance-16° / 20°
Horizontal guidance-10° / 10°
Main article: kan Ikv 103 (105 mm)

The Ikv 103 is outfitted with a 105 mm cannon firing heavy shells with a reload of 8 to 10 seconds depending on crew qualifications. This cannon is unusually short for its calibre, firing heavy shells with low-velocity. The gun is aimed manually without the help of electrical equipment, resulting in a slow traverse rate. At maximum, the gun traverses at 8° per second, resulting in many deaths at closer ranges. The stock gun accuracy is above average.

The gun has a significant recoil, which can mess with the aim in RB/SB and will slightly move the tank backwards. The recoil can also be used as an advantage to fly off the hill as fast as possible before an enemy started firing back.

Although the early psgr m/49 lacks significant amount of angled penetration and post-penetration damage, it works just fine at medium to long range. It can also be easily launched over cover at 450 m range while the SPG is fully concealed, which makes it useful in any situation. The later slpsgr m/65 HEATFS round packs up to 400 mm of flat penetration, generally penetrating anything it sees and making the post-penetration much deadlier than before. This later shell also features a higher velocity than the previous round, so it might actually hit moving targets.

Unfortunately, a lot of heavy tanks have near-impenetrable machine gun ports and even HEATFS will fail to get through them, so the gun cannot be fired entirely without care. If the Ikv 103 is used as a backup along with the 7.0 lineup, it will often fail to penetrate or bounce off the turret of many US heavy tanks due to their sheer thickness.

This SPG uses X1.9-3.5 scope again unlike the Pvkv m/43, so it's difficult for it to fight at long range.

This makes the gun most effective at medium ranges, where the traverse is ideal, and the shell velocity isn't crucial. It should be noted that the incredible gun depression allows the Ikv 103 to fire directly from extreme angles allowing it to suddenly engage targets in RB without the risk of overexposing the tank, something which becomes incredibly useful to increase the vehicles survivability.

105 mm kan Ikv 103 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 24 -16°/+20° ±10° N/A 7.0 9.8 11.8 13.1 13.9 10.40 9.20 8.48 8.00
Realistic 4.8 5.6 6.8 7.5 8.0

Ammunition

  • psgr m/49, HEAT - This stock shell offers great penetration values and should give you no trouble penetrating the upper glacis of common enemies like the Panther and Pershing series tanks. Even heavy tanks such as the Tiger II will also be vulnerable to this shell. Though it does suffer from the usual characteristics of HEAT which is the low muzzle velocity and sensitive fuse.
  • sgr m/34 LT, HE - This shell is able to destroy some medium and heavy tanks in one hit by attacking their roof, but some heavy tanks in up-tier already have 26 mm RHA thick roofs, making them effectively invulnerable to it.
  • slpsgr m/65, HEATFS - The HEATFS shell is an upgrade compared to the regular HEAT shells. The penetration is most noticeably increased. It also has a slightly faster muzzle velocity, which is helpful for sniping. However the major downside is its cost. In most situations, the stock HEAT shell will suffice.
  • rökgr m/49, Smoke - The smoke shell will help blind enemies to allow you to move behind cover.

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
psgr m/49 HEAT 240 240 240 240 240 240
sgr m/34 LT HE 23 23 23 23 23 23
slpsgr m/65 HEATFS 400 400 400 400 400 400
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
psgr m/49 HEAT 418 10.25 0.05 0.1 1.24 62° 69° 73°
sgr m/34 LT HE 400 11.67 0 0.1 1.82 79° 80° 81°
slpsgr m/65 HEATFS 530 10.2 0.05 0.1 1.41 65° 72° 77°
Smoke shell characteristics
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Screen radius
(m) 		Screen deploy
time (s) 		Screen hold
time (s) 		Explosive mass
(TNT equivalent) (g)
rökgr m/49 359 14.7 20 5 25 50

Ammo racks

Ammo racks of the Ikv 103
Full
ammo 		1st
rack empty 		2nd
rack empty 		Visual
discrepancy
24 19 (+5) 1 (+23) No

Usage in battles

The Ikv 103 is a nimble vehicle with a small silhouette compared to its peers. The lightweight and powerful gun set it apart from other vehicles at the battle rating.

The general playstyle can be compared to the Jpz 4-5 found in the German tech tree, as the vehicle has to make use of positioning rather than frontal survivability. The Ikv 103 can't use common sniping locations effectively since any form of enemy retaliation will destroy the vehicle completely. Instead, the 103 needs to drive full speed to various locations where enemies are unlikely to expect danger. Although this playstyle requires a lot of map knowledge, the reward is quite high for a successful flank, thanks to the devastating cannon the Ikv 103 carries.

Thanks to the light vehicle weight and strong engine, the Ikv 103 is also able to climb a lot of obstacles, something that helps a lot when fighting on bad terrain. However, maps that lack terrain entirely cripple the 103's performance quite significantly, since the tank cannot hide, resulting in a lot of face-to-face engagements, which the Ikv 103 almost always lose.

In AB, when it's impossible to find a good hill or the enemy is just too good, one can use this SPG as a mortar to bombard enemy tanks at about 450 m range with HEAT straight out of cover. Any cover that completely covers the SPG will work at this point, whether it's a random rock or terrain. It's also technically possible to fire over shallow hills while standing on them at ranges of about 300 m, but this is not entirely safe and constantly leads to situations, in which Ikv 103 is flanked or sniped. This playstyle works quite well over flat plains and some sniping hills, which are generally incapable of stopping shells with low velocity, but will likely block high-velocity APHE of all enemy tanks. Use binoculars to track enemy movements and to pre-aim. Be careful to not provoke other HEAT tanks into an artillery battle unless you are sure about your aim, as the Ikv 103 won't survive even a single HE/HEAT hit.

Pros and cons

Pros:

  • Excellent HEAT round for its rank, able to penetrate the upper glacis plate of the Tiger II
  • Excellent upgraded HEATFS round, useful even way outside of tanks own rank (technically can penetrate T95)
  • Good speed, able to secure crucial positions or even flank the enemy
  • Neutral steering
  • Small silhouette, can completely hide behind medium tanks hull or cover
  • Incredible gun depression
  • Due to having a roof, will not be as interesting to fighters as previous SPG models (although it won't really save from them)
  • Can work as artillery in AB, with not many tanks being able to do anything about it, but to ask for an air raid

Cons:

  • Poor armour, counts as open-topped, sides able to be penetrated even by rifle-calibre bullets, especially behind the tracks - Ikv 103 must rely on stealth
  • No MG to destroy light fences that can fuse the HEAT shells
  • Will struggle through any obstacles due to its low mass
  • Slow gun traverse, makes aiming in CQB or at a moving target harder
  • Vehicle reverses slightly when firing, forcing you to reacquire range of target after every shot
  • HEAT shell has a relatively low muzzle velocity, may be hard to fire accurately over long ranges
  • HEATFS shell is expensive and should thus be used conservatively

History

The Infanterikanonvagn 72 was a project started in 1949 by Sweden for an assault gun. The intended role of this vehicle was to support the infantry in the attack, replacing towed artillery guns. The design was to be small, and of light weight, around 6 tons. This was to reduce costs so a larger amount could be produced. The first prototype from Landsverk, completed in 1950, was armed only with three machine guns. This was insufficient, and it was re-armed with a 75 mm cannon, the same gun from the Strv m/42. It was a small, lightly armoured vehicle, with a casemate superstructure housing the 75 mm gun. It had a crew of 4, and it was open topped. Starting in 1956, the Ikv 72 was upgraded to the Ikv 102 standard. This upgrade added an armoured roof for the crew compartment and a 105 mm gun replaced the 75 mm gun. The Ikv 102, in turn, was upgraded to the Ikv 103 standard. The Ikv 103 featured an improved engine, the Volvo B42 engine. The air intake was moved to grills on the rear of the vehicle, instead of through the crew compartment.

Devblog

In 1949, the procurement division of the Swedish army placed an order for the development of a light assault self-propelled gun to substitute the Sav m/43 SPG. Three companies took on the work: AB Landsverk took on the development of the platform, Volvo was responsible for the powertrain, and Bofors for the armament. In fact, three versions of the vehicle for different purposes were planned at first: one with a 75 mm cannon, a machine-gun-equipped modification, and also a special one that was intended for the deployment of specific weaponry, such as flamethrowers and rocket launchers. Thus, a light (merely eight tonnes in all), tracked infantry-support vehicle was produced, with an open cabin and bulletproof armour.

In 1952, a cannon-equipped version, under the designation the Ikv 72 (short for "infanterikanonvagn", meaning "cannon-equipped infantry-support vehicle" in Swedish), was put into service. A little later, the SPGs were re-equipped with 105 mm howitzers and the cabin was retrofitted with a roof, which could protect the crew from bullets and shrapnel. This modification received the designation Ikv 102. Meanwhile, the Swedish army ordered another series of the vehicle with an upgraded chassis to allow installation of a new air-cooled engine, while the gun and the armour remained the same as the Ikv 102's. This new version was designated Ikv 103. The Ikv 102 and 103 SPGs remained in use by the Swedish army until the mid-1970s, when they were replaced with the Ikv 91 SPG.

Media

Skins
Images
  • Ikv 103 WTWallpaper 01.jpg
  • Ikv 103 WTWallpaper 02.jpg
  • Ikv 103 WTWallpaper 03.jpg
  • Ikv 103 WTWallpaper 04.jpg
  • Ikv 103 WTWallpaper 05.jpg
  • Ikv 103 WTWallpaper 06.jpg
Videos
"400mm PEN HEAT" - "PhlyDaily"
Best gun depression discusses the Ikv 103 at 2:19 - War Thunder Official Channel
The Infanterikanonvagn 103 Tank Destroyer - Orangefan

See also

Similar hull vehicle
Similar role

External links

References

Bibliography


AB Landsverk
Light Tanks 
L-10  Strv m/31
L-60  Strv m/38 · Strv m/39 · Strv m/40L
Pbil m/40  Pbil m/40
Strv 74  Strv 74
Unimog 404  U-SH 405
Medium Tanks 
Lago  Lago I · Strv m/42 EH · Ikv 73 · Strv m/42 DT
Tank Destroyers 
Ikv 72  Ikv 72 · Ikv 103
Pvkv m/43  Pvkv m/43 (1946) · Pvkv m/43 (1963)
Pvkv II/III  Pvkv II · Pvkv III
SPAA  Pvlvv fm/42 · L-62 ANTI II

Sweden tank destroyers
Strv m/41 derivatives  Spj fm/43-44 · Sav m/43 (1944) · Sav m/43 (1946) · Pvkv II · Pvkv III
Ikv 72/103  Ikv 72 · Ikv 103
Pvkv m/43  Pvkv m/43 (1946) · Pvkv m/43 (1963)
ATGM  UDES 33 · Pbv 302 (BILL) · Pvrbv 551
Other  SAV 20.12.48 · Bkan 1C
Norway  VIDAR

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