The Stormartillerivagn 20.12.48 is a gift rank II Swedish tank destroyer with a battle rating of 3.7 (AB/RB/SB). It was introduced in Update 1.95 "Northern Wind".
Survivability and armour
The SAV 20.12.48 is very lightly armoured, sacrificing protection for mobility. The highly sloped glacis is 30 mm thick, and can sometimes cause rounds to ricochet, but it is not reliable in any sense of the word. The rest of the tank is vulnerable to even heavy machine guns, and the open top is extremely vulnerable to strafing aircraft.
|Game Mode||Max Speed (km/h)||Weight (tons)||Engine power (horsepower)||Power-to-weight ratio (hp/ton)|
The SAV 20.12.48 has excellent mobility for a tank destroyer, featuring a high top speed as well as a fast reverse. The result is a highly agile tank destroyer that is capable of taking positions or retreating into cover quickly.
Modifications and economy
The 120 mm automatkanon is a potentially devastating weapon. It is fitted with an automatic loader that is fed by a six-round clip, for a total of seven shots ready to go once fully loaded (including one in the gun barrel). The autoloader has an extremely fast reload of only 1.2 s, allowing the Sav 20.12.48 to engage up to seven targets in under 10 s. Once the clip has been expended, a new round must be loaded into the clip before the autoloader may be cycled and the gun made ready to fire. However, this process only takes a few seconds. The gun also has a good amount of gun depression, allowing the Sav 20.12.48 to abuse hills when combined with the high reverse speed.
The primary shell is the hpgr m/50 APCBC round. With nearly 1 kg of explosive filler, it is extremely deadly and almost guaranteed to one-shot anything if it penetrates the crew compartment. Its penetration is quite respectable; although not quite enough to frontally penetrate everything the Sav 20.12.48 can encounter, it has more than enough penetration to kill most tanks from the side. It has a relatively low muzzle velocity, however, and is thus hard to hit with at long range.
|120 mm automatkanon||Turret rotation speed (°/s)||Reloading rate (seconds)|
|Ammunition|| Type of
|Penetration @ 0° Angle of Attack (mm)|
|10 m||100 m||500 m||1,000 m||1,500 m||2,000 m|
|Ammunition|| Type of
| Fuse delay
| Fuse sensitivity
| Explosive Mass
(TNT equivalent) (g)
|62||__ (+__)||__ (+__)||__ (+__)||__ (+__)||__ (+__)||__ (+__)||__|
Usage in battles
The combination of high mobility, powerful explosive filler APCBC shells, and autoloader make the Sav 20.12.48 an extremely dangerous tank destroyer to face. It is fast enough to quickly setup ambush positions near where the enemy team is likely to pass by, and a careless team can quickly find itself losing up to seven tanks in less than 10 s to the Sav 20.12.48 lying in ambush. Ideally, the Sav 20.12.48 would also be in a hull down position, where most of the tank can be hidden since the gun is mounted near the top of the vehicle and the high reverse speed allows it to back into cover quickly.
The vehicle itself is very fragile, however, and if it is caught out of position it is very easily destroyed. It is also very vulnerable to aircraft due to the open top, and has no means of defending itself from aircraft.
It can also be very tempting to fire off all seven rounds at once, but as with all autoloaders, trigger discipline is a very important skill to develop in order to use the vehicle to its full potential.
Most of the heavy tanks that the SAV 20.12.48 is able to face are largely resistant to your shells, especially if they're angled. If you see a KV-1 or Churchill, disengage and let your allies with better firepower take these out.
Pros and cons
- Highly lethal APCBC explosive filler shells
- Good mobility and high reverse speed
- Can fire seven rounds within 9 s using the autoloader
- Excellent gun depression
- Small silhouette, especially when hull down
- High hp/ton ratio - not many enemy or allied vehicles are as quick to accelerate or able to reach high speeds as quickly
- Penetration usually is a one-shot due to the high amount of explosive filler in the APCBC shells
- Extremely effective in an ambush role - an SAV 20.12.48 left unchecked can destroy an entire flank in rapid succession
- Very thin armour
- Open crew compartment, highly vulnerable to strafing aircraft
- Must reload at least one round into clip before the gun can be fired
- Low shell velocity
- Sustained firing decreases accuracy
- Struggles to penetrate heavy tanks like the KV-1 and Churchill series of tanks, even at close range or from the sides
- Magazine can quickly be depleted - replenishing the entire magazine takes up a lot of time
- Only 3 crew members - low survivability
In 1948, Bofors began work on developing a new self-propelled gun as part of a private venture in an effort to realize a long-lasting goal of establishing itself as a manufacturer of armored fighting vehicles, alongside its already proven reputation in arms production.
To do so, Bofors came up with a design for a new SPG, which incorporated a 12cm cannon, whose design was heavily inspired by those used on destroyer vessels, along with a highly effective autoloading mechanism. The design was ready by the end of 1948 and a single prototype was constructed in the following year.
However, while test results didn’t seem to impress the Swedish military enough to consider placing an order for the vehicle, the factor that certainly sealed the vehicle’s fate for good was its price. Namely, being developed with the use of its own funding, Bofors had to demand a high production price for the vehicle, a price deemed too high by the Swedish military considering the vehicle’s most probable role being an infantry support vehicle.
As a result of the lacking interest, the SAV 20.12.48 never went into production. Despite its failure, the project wasn’t a complete loss for Bofors, as some of the experiences gained during its development later found application in other vehicles, such as the far more successful Strv 103.
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.
|Sweden tank destroyers|
|Spj fm/43-44 · Ikv 72 · Ikv 73 · Ikv 103 · Pvkv II · Pvkv m/43 (1946) · Pvkv m/43 (1963) · Pvrbv 551|
|SAV 20.12.48 · Sav m/43 (1944) · Sav m/43 (1946) · U-SH 405 · UDES 33|
|Sweden premium ground vehicles|
|Light tanks||Strv m/39 · Strv m/41 S-I · CV 90105 TML|
|Medium tanks||Strv 81 (RB 52) · Strv 103-0|
|Tank destroyers||Ikv 73 · SAV 20.12.48|