Strv 103C

Strv 103С

Strv 104

Strv 105

Strv 103С

Strv 104

Strv 105

Sweden

VI Rank

Battle rating:

AB	RB	SB
8.7	8.7	8.7

Class:

Medium tank

Research:94 000

Purchase:520 000

Show in game

Description

The Stridsvagn 103С is a rank VI Swedish medium tank with a battle rating of 8.7 (AB/RB/SB). It was introduced in Update 1.97 "Viking Fury".

The Stridsvagn 103C is a final production variant of the S-tank family. This modification includes modern improvements in all areas, giving the tank access to increased mobility, survivability, and firepower.

General info

The Strv 103C is a Swedish MBT with a unique design compared to all other tanks of the same era. The S-tank, as it is more commonly known, makes use of the hull to direct fire at various targets. This feature requires the unique "Enable Hull aiming" key, which turns the tank from its regular cruising mode, into a fixed turret, capable of aiming wherever the player points their cursor. The reason the Strv 103C made use of hull-aimed weaponry becomes apparent when looking at the armour. The Strv 103C has armour sloped back more than 75 degrees, giving it strong frontal protection, with a high likelihood of causing enemy shells to ricochet. Another luxury a hull-fixed gun offers is the use of an automatic loading system. The Strv 103C can fire its main 105mm cannon every four seconds, no matter the amount of crewmen left. Paired with high mobility, and the Strv 103C becomes one of the most unique main-battle tanks in the game. With a bit of ingenuity and patience, the Strv 103C works at all ranges, in almost all conditions imaginable.

This isn't to say the Strv 103C is without flaws. The tank is incredibly vulnerable to flanking maneuvers, as the side and rear have a thickness of 30mm. It usually doesn't matter what kind of vehicle gets behind the Strv 103C, as even SPAA has no issues penetrating the tank. The gun is also filled with drawbacks, especially relating to the aiming. Due to hull-aiming relying on the ground below it, aiming becomes increasingly difficult on uneven terrain as the tank tries to compensate for things in the way. This results in shaky, and highly inaccurate aiming at longer ranges. The tracking is also bad, as the tank finds it difficult to adjust the speed at which it steers neutrally. This requires a Strv 103C tanker to wait for the target to cross its line of sight, instead of following it along its path. The armour is incredibly weak against APFSDS rounds and ATGM missiles. These usually have enough penetration to knock the tank out in a single blow, exploding the ammunition in the rear as a final touch. As these types of munitions are quite common at this tier, the Strv 103C can't rely on armour against most opponents on the battlefield. A positive is that weaker types of munitions usually can't reach the crew compartment, resulting in the Strv 103C surviving 3-5 shells before dying from engine fires.

Survivability and armour

Smoke grenades

Creation of a smoke screen in front of the vehicle

Self-entrenching equipment

Creation of ramparts and trenches in soft ground

Armourfront / side / back

Hull40 / 30 / 30

Turret0 / 0 / 0

Crew3 people

Visibility73 %

External survivability

The Strv 103C is outfitted with incredible frontal protection. This strong impenetrability isn't thanks to composite, but rather sloping. The Strv 103C has an incredible frontal slope of over 75 degrees. This results in a lot of ricochets from outdated types of munition, which lack significant velocity to damage the tank. Chemical rounds, which penetrate high amounts independent of velocity, have a higher likelihood of penetrating the vehicle. These shells don't bounce off as easily, while still carrying large penetration values. In order to counter this, the Strv 103C was outfitted with a unique external armour package. Commonly referred to as a "HEAT fence", the Strv 103C is able to counter upper-plate detonations by fusing them ahead of the armour itself. This hinders chemical rounds from causing heavy post-penetration damages, which increases frontal impenetrability. The lower plate has also been strengthened by the introduction of a dozer blade. This adds an extra 20mm of angled armour, which comes handy against stronger types of munition. The sides have also been slightly enhanced by the introduction of 5mm fuel-canisters acting as side skirts.

Internal survivability

Once a shell penetrates the vehicle, the Strv 103C has to rely on its layout. Since the S-tank is entirely hull-designed, everything is incredibly compact to accommodate its varying features. The engine is placed at the front of the vehicle, followed by the crew compartment and lastly ammunition storage. When a frontal penetration occurs, a tanker can consider these compartments as varying grades of damage. Engine penetrations are usually fine, as the only way to take the tank out is by igniting it several times. Shells reaching the crew compartment can be severe, as the tank only has 3 members. Thanks to the last-stand feature, only one member needs to be alive. This can result in a lot of tanked hits, since it's difficult for the enemy to locate which member is still left. Finally, the Strv 103C is usually destroyed in a single hit if the post-penetration is strong enough to reach the rear ammunition storage. A tanker can still luck out if the shell penetrates the left-side when carrying 26 rounds, as only the right side will be filled.

A universal strength is the upper ribbed armour package. Previously introduced on the Strv 103A, this package allows the Strv 103C to "shred" incoming projectiles. Thanks to the introduction of volumetric shells, no sub-caliber round can currently sneak through this package. Due to heavy angling, and being placed behind the fence itself, it reaches thickness levels of between 500 and 1200mm, making it one of the strongest armour layouts in the game.

A universal weakness is slightly above and below the sharp edge where the upper and lower plate meets. This area can be easily penetrated by both chemical and conventional rounds. With varying damage depending on post-penetration effect. Aiming below the gun-barrel can also knock it out in the process, leaving the Strv 103C incredibly vulnerable.

Armor Composition:

• Rolled Homogeneous Armor
• Structural Steel - Storage Boxes, Side-skirts
• Gun Steel - Main Gun, Machine Guns
• High Hardness Rolled Armor - Slat
• Tracks
• Structural Steel of Chassis - Suspension

Armour	Front (Slope angle)	Sides	Rear	Roof
Hull	40 mm (77°) Upper Glacis 40 mm (74°) + 20 mm Lower Glacis	30 mm +10-20 mm Upper 30 mm Lower	30 mm	20 mm
Cupola	35 mm	35 mm	35 mm	20 mm

Notes:

• Main Gun - 25 mm
• Machine Guns - 5 mm
• Slat Armor - 50 mm
• Sideskirts - 4 mm
• Tracks - 20 mm
• Suspension - 15 mm
• The crew compartment is lined with 10 mm RHA

Mobility

 

Controlled suspension

It is possible to adjust the ground clearance or more complex suspension positions

Speedforward / back

AB55 / 49 km/h

RB and SB50 / 44 km/h

Number of gears7 forward

6 back

Weight42.5 t

Engine power

AB1 488 hp

RB and SB780 hp

Power-to-weight ratio

AB35.0 hp/t

RB and SB18.4 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	55	49	42.5	1057	1,488	24.87	35.01
Realistic	50	44		690	780	16.24	18.35

When glancing over the stat-card of the Strv 103C, it can be easy to assume the tank has inferior mobility to the earlier variants. But thanks to the tank utilizing the turbine in tandem with the more powerful diesel engine, it ends up being one of the most powerful engines at its BR. This catches a lot of opponents off-guard, as they generally don't expect the Strv 103C to be able to change positions quickly. This can also surprise wounded opponents, as they usually think they're safe hiding behind smaller obstacles without the Strv 103C coming towards them. And when facing opponents lacking any form of subcaliber munitions to deal with the Strv 103C, a tanker can find enjoyment scaring them by simply charging at their position.

The Strv 103C suffers from a severe lack of turrets, which makes it vulnerable to bad positioning. Turreted tanks can easily deal with enemies coming from the sides, without exposing a lot of weak-spots. The Strv 103C needs to turn the entire vehicle, which often proves fatal. To avoid this, it's important to practice driving in reverse. The Strv 103C goes almost top-speed in both directions, making it viable to drive in reverse if the tank requires immediate repositioning. Combining this with smoke-grenades makes it impossible for the enemy to predict where the vehicle currently is.

Modifications and economy

Repair costBasic → Reference

AB4 639 → 6 327

RB5 050 → 6 888

SB6 429 → 8 769

Total cost of modifications153 400

266 000

Talisman cost2 600

Crew training150 000

Experts520 000

Aces2 100

Research Aces950 000

Reward for battleAB / RB / SB

140 / 210 / 250 %

220 / 220 / 220 %

Modifications

Mobility	Protection	Firepower
Tracks Research: 17 000 Cost: 27 000 640 Suspension Research: 7 600 Cost: 12 000 290 Brake System Research: 7 600 Cost: 12 000 290 Filters Research: 11 000 Cost: 17 000 410 Transmission Research: 9 100 Cost: 14 000 340 Engine Research: 9 100 Cost: 14 000 340	Improved Parts Research: 5 100 Cost: 27 000 640 Improved FPE Research: 2 300 Cost: 12 000 290 Crew Replenishment Research: 11 000 Cost: 17 000 410 Smoke grenade Research: 9 100 Cost: 14 000 340	Adjustment of Fire Research: 7 600 Cost: 12 000 290 105mm_usa_HESH_ammo_pack Research: 7 600 Cost: 12 000 290 Dozer Blade Research: 11 000 Cost: 17 000 410 105mm_us_M416_Smoke_ammo_pack Research: 11 000 Cost: 17 000 410 Laser rangefinder Research: 9 100 Cost: 14 000 340 Artillery Support Research: 9 100 Cost: 14 000 340 105mm_usa_M735_APDS_FS_ammo_pack Research: 9 100 Cost: 14 000 340

Armaments

Laser rangefinder

Reduces the error and increases the maximum measurable distance of the rangefinder

Main armament

105 mm L74 cannon

Autoloader

Automatically feeds projectiles into the breech. The speed does not depend on the skills of the loader

Ammunition50 rounds

Reload4.0 s

Vertical guidance-10° / 12°

The Strv 103C is outfitted with the Bofors L74 105mm cannon. This cannon is identical to the earlier versions of the S-tank. There is some slight visual differences, as the cannon is now welded to the chassi, rather than just drilled through on the earlier variants. But the main difference lies in the ammunition. The Strv 103C gets access to the DM23 subcaliber shell. This is a treat at its BR, as not all tanks get access to it. The Strv 103C benefits greatly from this upgrade, as shots don't require the same amount of precision as before to land a devastating hit. This makes it more forgiving to aim, which is especially helpful with the sometimes janky hull-aiming a tanker may experience. But to compensate even further, the Strv 103C features the same autoloader as any other S-tank, allowing it to fire up to 50 shells with a mere 4 second interval between each round. This makes the Strv 103C the fastest firing DM23 tank in the game, allowing for some incredible killing sprees when positioned correctly.

105 mm L74					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	50	-10°/+12°	N/A	N/A	67.2	67.2	81.6	90.2	96.0	4.0	4.0	4.0	4.0
Realistic					42.0	42.0	51.0	56.4	60.2

Ammunition

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
slpprj m/62	APDS	260	258	250	240	231	222
slpprj m/80	APFSDS	337	335	330	322	314	306
slsgr m/61A	HE	23	23	23	23	23	23
Shell L35	HESH	127	127	127	127	127	127

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile Mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive Mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
slpprj m/62	APDS	1,450	4.5	N/A	N/A	N/A	75°	78°	80°
slpprj m/80	APFSDS	1,455	3.79	N/A	N/A	N/A	78°	80°	81°
slsgr m/61A	HE	680	14.4	0.1	0.1	1,830	79°	80°	81°
Shell L35	HESH	730	14.85	0.4	0.1	4,780	73°	77°	80°

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/61	330	18.7	20	5	25	50

Ammo racks

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
50	46 (+4)	41 (+9)	36 (+14)	31 (+19)	26 (+24)	21 (+29)	16 (+34)	11 (+39)	6 (+44)	1 (+49)	No

Ammo racks of the Strv 103C

Machine guns

2 x 7.62 mm ksp 58 machine gun (coaxial)

Ammunition1 000 rounds

Belt capacity250 rounds

Reload8.0 s

Fire rate600 shots/min

7.62 mm ksp 58 machine gun

Ammunition1 500 rounds

Belt capacity250 rounds

Reload8.0 s

Fire rate600 shots/min

Main article: ksp 58 (7.62 mm)

The Strv 103C has 3 7.62mm Ksp 58 machine guns, 2 on the left side in their own mount and one on top of the commander's cupola. All 3 machine guns are fixed to the hull with no traverse.

7.62 mm ksp 58
Mount	Capacity (Belt)	Fire rate	Vertical	Horizontal
Hull	1,375 (250)	500	N/A	N/A
Hull	1,375 (250)	500	N/A	N/A
Pintle	1,375 (250)	500	N/A	N/A

Usage in battles

Long-range Maps

A natural fit for the Strv 103C is long distance engagements. With its high fire-rate and fast shell, paired with unmatched optics and laser rangefinder, it has all the tools to dominate opponents at longer distances. The Strv 103C should be spawned as early as possible, swiftly positioned far ahead of the team, with plentiful amounts of cover to compensate for its lackluster survivability against subcaliber munitions. Since the tank has incredible mobility, and almost impenetrable frontal protection in hull-down positions, the S-tank creates hell for the enemy team, forcing them to strategically flank the vehicle, or attack it with guided missiles. The gun barrel can still get knocked out, forcing the Strv 103C to back away for a few seconds to repair. This can prove costly however, as this window of opportunity can be wide enough to allow a flanking maneuver by the enemy team.

Having teammates substancially increases the tank's survivability against flanking opponents, as a turreted teammate can easily engage enemies trying to sneak a final shot in.

Close-range Maps.

Realizing the upsides and downsides of the Strv 103C makes it clear the vehicle was never designed for close-range engagements. This downside does show its truth as the vehicle can't fire on the move effectively, and is forced to take it slow in order to not get blasted from the side in a single shot. Either way, these maps can't be ignored when spading the vehicle, or when trying to research its more conventional brother, the Strv 104. Despite its flaws, the many upsides still have a lot of usage in closer engagements, and can result in high kill games, despite the uncomfortable surroundings. At the start of a match, the mobility should still be used to its limits. The Strv 103C only really gets to move freely without any form of danger at the beginning of the match where opponents haven't yet secured any areas of the map, so it's important to take a good position as early as possible. Hiding behind buildings and corners is highly effective, as getting flanked wont occur as often. The tank can very effectively fight off one enemy at a time, but struggles to focus on several opponents at once, due to the lack of a conventional turret. This forces the Strv 103C to pick off targets when they're busy with something else. Alternatively, if the Strv 103C sees opponents incapable of effectively penetrating its frontal protection, it can calmly peek out of cover to attack, without any danger, as even if the barrel gets damaged, the tank can swiftly reverse back at max speed.

Having a coordinated teammate can prove devastating for the enemy team, as a turreted teammate can easily fend off opponents from directions the Strv 103C can't handle. Thanks to the tanks amazing survivability, the Strv 103C can coordinate with a lesser armoured teammate, to work as a spearhead against incoming shells. As soon as the Strv 103C gets crippled, a teammate can easily jump in to deal with the distracted opponents. Since the Strv 103C needs to repair a lot due to commonly sustaining damage, having a teammate that can lower repair times is incredibly helpful.

Always smoke when you get immobilized in the Strv 103C! After smoking you can angle the tank vertically with the use of hull-aiming, making it difficult for the enemy to deal more damage.

Pros and cons

Pros:

• High penetration shells - Access to Swedish DM23 rounds
• High survivability - Able to tank most rounds from the front
• New HEAT "fence" - Counters most Chemical rounds
• Strong turbine engine - Gives the tank high mobility & good off-road performance
• Low silhouette - Capable of hiding behind walls and small hills

Cons:

• Weak to Sub-caliber shells - Compact design results in high post-penetration damage
• Weak side & rear protection - Unable to survive against any high-caliber round
• Unable to fire while moving
• Poor stock performance - Weak stock rounds and slow acceleration
• Loud turbine & diesel engine - Difficult to silently hide

History

Strv 103C is the last official series of the S tank, in the army decision 1972 and 1982 it was decided that getting a new tank for the army was going to be post-pone to the 1990's and the Swedish army at time would foucs on a lighter combat vehicles. So to modernize the S tanks the Strv 103B's had to go through a renovation with upgrading the systems and improve the vehicles in a so called REMO (Renovation and Modification) process and it was not till 1986 the first Strv 103B got its REMO done and got designated Strv 103C.

In the Renovation and Modification process the Strv 103B's got upgraded from a Rolls Royce piston engine to a Detroit Diesel engine, Dozer blade on all "S" Tanks that used to be only 1 of 3 Strv 103's equipped with that, New Tracks, new external fuel tanks in terms of 22 liter jerry cans that were attached on the sides that also worked as extra protection to the side armour, laser rangefinder that was integrated with the aimsight for the gunner, Lyran 71mm illuminating mortar and new gearbox.

It was not till 1988 that all 290 Strv 103B's had been renovated to Strv 103C where they stayed in service till 1997 the Strv 103 saw the last of its service in the armed forces.

Devblog

In the immediate postwar years, Sweden began looking for a replacement to the Centurion tanks, then in service with its army. The most straightforward solution was to once again look into the export market for potential candidates, although engineers were already working on a domestic design - the Kranvagn. While this process was ongoing, an engineer by the name of Sven Berge came up with a radical new tank design in 1956.

This new vehicle featured a turretless design with a cannon fixed to the hull, which would be trained onto its targets with the precise use of an adjustable suspension system. The design was based on results from a study on tank crew casualties during WWII and the Korean War, which showed a correlation between tank height and hit probability. As such, the 'S-Tank' was kept very small in dimensions and low in profile, while also utilizing some innovative new engineering solutions, such as a mixed power plant consisting of a diesel engine and a gas turbine.

In 1959, the Swedish government approved the construction and testing of two prototypes. In 1960, a pre-production batch of 10 vehicles of the '0-serie' was ordered for field trials, which went on into the mid '60s. Generating more than favorable test results, the vehicle was formally ordered into production and procured as the 'Stridsvagn 103'.

Despite its original purpose being to replace the Centurion tanks in the Swedish Army, the Strv 103 ended up serving alongside it for a number of decades, until it was ultimately decommissioned in the late 1990s. By that time, 290 Strv 103s were built, spanning over five variants.

Media

Skins

• Skins and camouflages for the Strv 103C from live.warthunder.com.

Images

• 

  Strv 103C after firing main gun

• 

  Strv 103C in forest

Videos

Maximum Swedish Frustration - Strv 103c - JustinPlaysYT

The Strv 103C Main Battle Tank - Orangefan

Strv 103C - Hullaim Got Me Killed: Heartbreak - Napalmratte

Tank Chats #117 - Stridsvagn 103 - The Tank Museum

Swedish Stritsvagen 103 (Strv 103) S-Tank - Matsimus

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

Paste links to sources and external resources, such as:

• topic on the official game forum;
• encyclopedia page on the tank;
• other literature.