Difference between revisions of "ASU-57"

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{{Specs-Card|code=ussr_asu_57}}
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{{Specs-Card
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|code=ussr_asu_57
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
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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.''-->
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<!-- ''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.'' -->
[[File:GarageImage_ASU-57.jpg|420px|thumb|left]]
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The '''ASU-57 (Авиадесантная самоходная установка, АСУ-57)''' was a small, light Soviet assault gun designed for use primarily by Soviet airborne troops. The ASU-57 was intended to be a lightweight assault gun that could be airdropped from the An-12 transport plane, the Soviet military's main cargo plane at the time, and deployed alongside troops via rocket-assisted parachute. The ASU-57 was the first effective Soviet airborne tank, overcoming shortcomings in previous Soviet doctrine dating back to the 1930s. It was lightly armoured and armed with a 57 mm Ch-51 tank gun, a modified version of the 57 mm ZiS-2 anti-tank gun employed during World War II. Beginning in 1954, an improved 57 mm Ch-51M tank gun was mounted, with a somewhat shorter double-baffle muzzle brake. One significant disadvantage was the vehicle's welded aluminium structure, which provided insufficient protection for the crew. During its operational years, each airborne division would have received 54 such vehicles. Beginning in 1960, it was gradually phased out in favour of the [[ASU-85]].
{{break}}
 
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Russian tank destroyer {{Battle-rating}}. It was introduced in [[Update 1.59 "Flaming Arrows"]]. It is a tiny, mobile 57 mm gun carriage akin to the [[ZiS-30]].
 
  
The ASU-57 is a tiny, open topped, turretless SPG armed with a 57 mm gun with good penetration. It is famously one of the smallest tracked vehicle in the game, weighing only 3.3 tons. Its complete lack of armour makes it extremely vulnerable, its only defense being its small size, making it extremely difficult to notice, let alone hit. It has very good speed and excellent maneuverability, being very nimble for a turretless tank destroyer. The 57 mm gun starts with solid shot rounds, which is troublesome as each shot will make the firing position more apparent. For this reason it is recommended to research the APHE rounds and adjustment of fire to reduce the number of shots needed to destroy an enemy.
+
Introduced in [[Update 1.59 "Flaming Arrows"]], the ASU-57 is extremely vulnerable since it lacks armour and weighs only 3.3 tonnes. ASU-57 gameplay is exceedingly difficult, but it can also be extremely rewarding. Because of its small size, the ASU-57 can readily conceal itself behind low obstacles on the battlefield, making ambushes and surprise strikes its speciality. The ASU-57, on the other hand, is extremely susceptible to virtually any form of fire. Aircraft are extremely dangerous due to the exposed crew compartment. It is recommended that players only engage isolated enemies one at a time, as dealing with multiple opponents will be extremely difficult.
 
 
The ASU-57 is very difficult but very rewarding and fun to play, and it is not recommended for arcade battles, as its primary advantage, stealth, is lost. The ASU-57 is a master of stealth, famed and beloved by the community by its ability to sneak up on tanks by using its extremely small size. When using the ASU-57, objects that other tanks would ignore or simply drive over are capable of completely hiding the vehicle, making ambushes and surprise attacks the specialty of the ASU-57. This size comes at a cost, however, as the ASU-57 has barely more survivability than a Soviet AA truck.
 
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
<!--''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?''
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{{Specs-Tank-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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Due to the weight restrictions necessary for air portability, the ASU-57 has nearly no armour to speak of, and the side armour can be penetrated by even rifle-calibre machine guns. It has no armoured roof, and is thus extremely vulnerable to strafing runs by aircraft.
  
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
 
 
'''Armour type:'''
 
'''Armour type:'''
  
* Rolled homogeneous armour  
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* Rolled homogeneous armour
  
 
{| class="wikitable"
 
{| class="wikitable"
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=== Mobility ===
 
=== Mobility ===
<!--''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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{{Specs-Tank-Mobility}}
{| class="wikitable" style="text-align:center"
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<!-- ''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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! colspan="3" | Mobility characteristic
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{{tankMobility|abMinHp=78|rbMinHp=49}}
|-
+
 
! Weight (tons)
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While the ASU-57 has a top speed below 50 km/h, it has an excellent power/weight ratio that allows the vehicle to accelerate very quickly to reach its top speed. It is thus very mobile and turns very quickly. However, it has a poor reverse speed of only 5 km/h, which makes it hard to back up into cover or away from a threat.
! colspan="1" | Add-on Armor<br>weight (tons)
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! colspan="1" | Max speed (km/h)
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=== Modifications and economy ===
|-
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{{Specs-Economy}}
| rowspan="2" | 3.3 || colspan="1" rowspan="2" | N/A || colspan="1" | 50 (AB)
 
|-
 
|46 (RB/SB)
 
|-
 
! colspan="3" | Engine power (horsepower)
 
|-
 
! colspan="1" | Mode
 
!Stock
 
!Upgraded
 
|-
 
|''Arcade''
 
|78
 
|96
 
|-
 
|''Realistic/Simulator''
 
|49
 
|55
 
|-
 
! colspan="3" | Power-to-weight ratio (hp/ton)
 
|-
 
! colspan="1" | Mode
 
!Stock
 
!Upgraded
 
|-
 
|''Arcade''
 
|23.64
 
|29.09
 
|-
 
|''Realistic/Simulator''
 
|14.85
 
|16.67
 
|-
 
|}
 
  
 
== Armaments ==
 
== Armaments ==
<!--''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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{{Specs-Tank-Armaments}}
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=== Main armament ===
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{{Specs-Tank-Weapon|1}}
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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.'' -->
 
{{main|Ch-51M (57 mm)}}
 
{{main|Ch-51M (57 mm)}}
  
{| class="wikitable" style="text-align:center"
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The ASU-57 is armed with the 57 mm Ch-51M, a derivative of the 57 mm ZiS-2 anti-tank gun encountered previously on the [[ZiS-30]]. The mounting has a very limited amount of gun depression and traverse due to the small size of the ASU-57. The gun itself has a fairly fast reload, which is a good thing since it is not uncommon for the first penetrating hit to not completely destroy the target.
|-
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! colspan="6" | [[Ch-51M (57 mm)|57 mm ch-51M]]
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{| class="wikitable" style="text-align:center" width="100%"
|-
 
! colspan="3" rowspan="1" style="width:5em" |Capacity
 
! rowspan="1" | Vertical <br> guidance
 
! rowspan="1" | Horizontal <br> guidance
 
! rowspan="1" | Stabilizer
 
|-
 
| colspan="3" | 30 || -4°/+12° || ±7° || N/A
 
 
|-
 
|-
! colspan="6" | Turret rotation speed (°/s)
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! colspan="5" | [[Ch-51M (57 mm)|57 mm Ch-51M]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
 
|-
 
|-
! style="width:4em" |Mode
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! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
! style="width:4em" |Stock
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! Stock !! Upgraded !! Full !! Expert !! Aced
! style="width:4em" |Upgraded
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! Stock !! Full !! Expert !! Aced
! style="width:4em" |Prior + Full crew
 
! style="width:4em" |Prior + Expert qualif.
 
! style="width:4em" |Prior + Ace qualif.
 
 
|-
 
|-
| ''Arcade'' || 7.10 || _.__ || _.__ || __._ || __._
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! ''Arcade''
 +
| rowspan="2" | 30 || rowspan="2" | -5°/+12° || rowspan="2" | ±8° || rowspan="2" | N/A || 10.57 || 14.63 || 17.76 || 19.64 || 20.89 || rowspan="2" | 6.50 || rowspan="2" | 5.75 || rowspan="2" | 5.30 || rowspan="2" | 5.00
 
|-
 
|-
| ''Realistic'' || 7.10 || _.__ || _.__ || __._ || __._
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! ''Realistic''
|-
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| 7.14 || 8.40 || 10.20 || 11.28 || 12.00
! colspan="4" | Reloading rate (seconds)
 
|-
 
! colspan="1" style="width:4em" |Stock
 
! colspan="1" style="width:4em" |Prior + Full crew
 
! colspan="1" style="width:4em" |Prior + Expert qualif.
 
! colspan="1" style="width:4em" |Prior + Ace qualif.
 
|-
 
| 6.50 || __.__ || __.__ || __.__
 
 
|-
 
|-
 
|}
 
|}
  
===== Ammunition =====
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==== Ammunition ====
{| class="wikitable sortable" style="text-align:center" width="100%"
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! colspan="8" | Penetration statistics
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* '''BR-271SP''': APBC; a solid shot with a good penetration but no explosive filler. It is your stock shell, use it until you unlock BR-271M.
|-
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* '''BR-271M''': APCBC; an armour-piercing round with ballistic cap and explosive filler. It will punch through most targets frontally and its explosive filler will take out most targets in a single shot. This should be your main shell once you unlock it.
! rowspan="2" data-sort-type="text" | Ammunition
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* '''BR-271N''': APCR; a composite round with a slightly increased penetration but no explosive filler and will only penetrate flat vertical surfaces. The small added penetration (a few mm) does not make a viable ammo choice to deal with heavily armoured targets.
! rowspan="2" class="unsortable" | Type of <br /> warhead
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* '''O-271''': HE; a slow round with a high explosive mass useful for taking out the crew of open-topped vehicles. As it won't consistently kill SPAAGs due to the small calibre and low explosive mass, don't try to hunt these vehicles as they will kill you much faster than you will.
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 90°'''
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|-
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{{:Ch-51M (57 mm)/Ammunition|BR-271SP, BR-271M, O-271, BR-271N}}
! 10m
 
! 100m
 
! 500m
 
! 1000m
 
! 1500m
 
! 2000m
 
|-
 
| BR-271SP || APBC ||161||158||144||129||115||103
 
|-
 
| BR-271M || APCBC ||145||142||127||110||96||83
 
|-
 
| O-271 || HE || 5 || 5 || 5 || 5 || 5 || 5
 
|-
 
| BR-271N || APCR || 196 || 193 || 155 || 117 || 89 || 67
 
|-
 
|}
 
{| class="wikitable sortable" style="text-align:center" width="100%"
 
! colspan="11" | Shell details
 
|-
 
! rowspan="2" data-sort-type="text" | Ammunition
 
! rowspan="2" class="unsortable" | Type of <br /> warhead
 
! rowspan="2" |Velocity <br /> in m/s
 
! rowspan="2" |Projectile<br />Mass in kg
 
! rowspan="2" | ''Fuse delay''
 
''in m:''
 
! rowspan="2" | ''Fuse sensitivity''
 
''in mm:''
 
! rowspan="2" | ''Explosive Mass in g<br /> (TNT equivalent):''
 
! rowspan="2" | ''Normalization At 30° <br> from horizontal:''
 
! colspan="3" | ''Ricochet:''
 
|-
 
! 0%
 
! 50%
 
! 100%
 
|-
 
| BR-271SP || APBC || 1020 || 3.4 || N/A || N/A || N/A || +4° || 48° || 63° || 71°
 
|-
 
| BR-271M || APCBC || 975 || 2.8 || 1.2 || 20 || 22.1 || +4° || 48° || 63° || 71°
 
|-
 
| O-271 || HE || 695 || 3.7 || 0.4 || 0.01 || 220 || +0° || 79° || 80° || 81°
 
|-
 
| BR-271N || APCR || 1125 || 2.4 || N/A || N/A || N/A || +1.5° || 66° || 70° || 72°
 
|-
 
|}
 
  
===== [[Ammo racks|Ammo racks]] =====
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==== [[Ammo racks]] ====
[[File:Ammoracks_ASU-57.png|right|thumbnail|x250px|[[Ammo racks|Ammo racks]] of the ASU-57.]]
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[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
{| class="wikitable sortable" style="text-align:center"
+
<!-- '''Last updated: 2.27.2.40''' -->
 +
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! class="wikitable unsortable" |Full<br /> ammo
+
! Full<br>ammo
! class="wikitable unsortable" |1st<br /> rack empty
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! 1st<br>rack empty
! class="wikitable unsortable" |2nd<br /> rack empty
+
! 2nd<br>rack empty
! class="wikitable unsortable" |3rd<br /> rack empty
+
! 3rd<br>rack empty
! class="wikitable unsortable" |Visual<br /> discrepancy
+
! Visual<br>discrepancy
 
|-
 
|-
|| '''30''' || 25&nbsp;''(+5)'' || 19&nbsp;''(+11)'' || 1&nbsp;''(+29)'' || style="text-align:left" | No  
+
| '''30''' || 25&nbsp;''(+5)'' || 19&nbsp;''(+11)'' || 1&nbsp;''(+29)'' || No
 
|-
 
|-
 
|}
 
|}
 +
'''Notes''':
  
Right side empty: 19&nbsp;''(+11)''
+
* Racks disappear after you've fired all shells in the rack.
 +
* Right side empty: 19&nbsp;''(+11)'' shells.
 +
{{Clear}}
  
 
== Usage in battles ==
 
== Usage in battles ==
<!--''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).'' -->
 +
 
 +
One of the smallest tracked vehicles in the game, weighing only 3.3 tons, the ASU-57's complete lack of armour makes it extremely vulnerable. Its only defense is its small size, making it extremely difficult to notice, let alone hit. It accelerates quickly and is very nimble for a turretless tank destroyer.
 +
 
 +
The ASU-57 is very difficult but can be very rewarding and fun to play. It is not recommended for arcade battles, as its primary advantage, stealth, is lost. The ASU-57 is a master of stealth, famed and beloved by the community for its ability to sneak up on tanks using its extremely small size. When using the ASU-57, objects that other tanks would ignore or simply drive over are capable of completely hiding the vehicle, making ambushes and surprise attacks the specialty of the ASU-57. This size comes at a cost, however, as the ASU-57 is extremely vulnerable to almost anything that can shoot at it. Aircraft are especially dangerous due to the open crew compartment.
 +
 
 +
The ASU-57 is best used as an ambusher/flanker, executing surprise attacks from unexpected locations other vehicles would struggle or be unable to reach. The ASU-57 is incredibly short, and by driving up next to an enemy it can render the enemy tank completely helpless, as almost no vehicle has enough gun depression to reach it. For this reason, it is recommended to only go after isolated vehicles, as an enemy teammate will be able to assist their ally by destroying the ASU-57. For the maximum efficiency of this tactic, knock out the driver of the enemy vehicle, then rush up to their side before they can bring their gun to bear.
 +
 
 +
Sniping can also be a very good tactic, thanks to the amazing velocity of BR-271M (over 1,000 m/s) and consequently penetration, also thanks to your very low profile you are very hard to spot/hit at far range. Be careful though when engaging American vehicles as they can just spray their .50 cals at you, knocking your crew out even at long range.
 +
 
 +
Note that the ASU-57 is the lowest ranked vehicle in the game with access to night vision devices, a useful feature in night battles.
 +
 
 +
;Enemies worth noting:
  
The ASU-57 is best used as an ambusher/flanker, executing surprise attacks from unexpected locations other vehicles would struggle or be unable to reach. The ASU-57 is incredibly short, and by driving up next to an enemy can render the vehicle completely safe, as almost no vehicle has enough gun depression to reach it. For this reason it is recommended to only go after isolated vehicles, as an enemy teammate will be able to assist their ally by destroying the ASU-57. For the maximum efficiency of this tactic, knock out the driver of the enemy vehicle, then rush up to their side before they can bring their gun to bear. Once this is done, try to ammo rack or pick off their crew before they can recover. with the addition of NVD's to the ASU, you can be quite the foe in a night battle if the situation ever arises.
+
As the ASU-57 can be easily knocked out by most enemies, it does not makes sense to list all opponents. However, some foes are more dangerous than others as they may survive your shots.
  
Literally any vehicle, be it ground or air, can destroy the ASU-57 within seconds if allowed to get it in their sights.  
+
* [[Panther D]], [[Tiger H1]]: in uptiers you can see those two big cats. The Panther's UFP is immune to all your rounds, so better aim for the left side (right when facing it) of the gun mantlet, this will usually knock out gunner, commander and with some luck the gun breech. For the Tiger, aim for the front hull if it is not angled as you can punch right through. If it is angled, in this situation it is better to just retreat and relocate. The best is still to get a side shot on both of them.  An important note is that with their enormous size and your rounds small explosive mass, you can and will struggle to destroy them; actually a shot to the middle of the Tiger's UFP wont take out a single crew member, only damage them.
 +
* KV-1B/C (germany). Those can be really tricky even side shots can non-pen, treat similarly as a Tiger, the armour layout is very similar, especially on the hull.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
<!--''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''-->
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<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
 +
 
 
'''Pros:'''
 
'''Pros:'''
  
* Tiny size and very light weight
+
* Tiny size, can easily hide in unexpected places, making it difficult to spot and hit
* Difficult to target at long range
+
* Smallest of bushes are able to hide the tank
* Easy to conceal. The tank can proceed to the other side of the map and not be seen by anyone
+
* Armour is too thin to trigger APHE fuses
* Good speed and mobility
+
* Excellent mobility
* Although very vulnerable to strafing by enemy planes, the vehicle can be easily concealed from their view (RB and SB)
+
* Powerful 57 mm gun for its BR
* Very low profile makes it impossible to be hit by most enemy tank guns when right next to them
 
* Powerful 57 mm gun
 
* Access to APCR ammunition
 
 
* Access to NVDs
 
* Access to NVDs
* Lowest ranked vehicle that has access to NVDs
+
* Given the abilities of a light tank (scouting, help repair)
 +
* Very short profile, most tanks can't kill it with their main gun up close
  
 
'''Cons:'''
 
'''Cons:'''
  
* Virtually no armour
+
* Virtually no armour: can be destroyed by overpressure, 12.7 mm will chew right through it and even 7.62 mm machine guns can penetrate the armour at close range.
* High top speed + no armour means the ASU-57 can destroy itself upon hard collision
+
* Open-topped, extremely vulnerable to aircraft
* Lightweight and tiny size makes it easy to push around by enemy and friendly tanks
+
* Low ammunition capacity
* Low ammunition count
+
* 57 mm gun rarely destroys vehicles with one shot
* Crew can get knocked out easily by aircraft fire or artillery
+
* Zero stabilisation and extremely bouncy suspension, making quick shoot and scoots difficult
* 57 mm gun can struggle to deal with angled armour
+
* Poor gun depression and horizontal traverse
* 57 mm gun rarely can destroy vehicles with one shot
+
* Gun located at the bottom of the vehicle, meaning in order to fire the whole tank must be exposed
* Not suitable for AB players; this tank's main advantage is its small size, so having a big red marker does not play in the player's favour
+
* NVDs are only available in 3rd person or in the Commander's view
* No defensive machine guns. SPAA can be a real threat, even at long range
 
* Crew are packed into the ASU-57, any damage will result in one or more knocked out crew member
 
* Prone to hull break
 
* Can really struggle to penetrate certain tanks it will face, such as Jumbos and Churchills
 
* Poor horizontal and vertical traverse of the gun
 
* Unsuitable for long range engagements
 
* Tall grass can hinder clear vision through the sight
 
  
 
== History ==
 
== History ==
<!--''Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, 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></nowiki></code>, as well as adding them at the end of the article. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== Encyclopedia Info ===</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).'' -->
 
===Development===
 
===Development===
 
In mid-1940s, sometime either late in World War II or post-war, a proposal was made to develop a vehicle for the airborne troops. The vehicle was to be a lightweight assault gun able to support the paratroopers by being transportable by air. The task was given to two design bureaus, OKB-40 headed by Nikolaj Astrov in Mytischi and the other to Anatoly Karvtsev in Moscow. Astrov designed his vehicle as the ''ASU-76'', armed with a 76 mm D-56T gun. The design ended up being too heavy and its armour way too thin for adequate protection and was cancelled. Kartsev's project was the ''K-73'' which was amphibious and used a 57 mm Ch-51 anti-tank gun as its armament. This was even more thinly armoured than the ASU-76 and was also cancelled.
 
In mid-1940s, sometime either late in World War II or post-war, a proposal was made to develop a vehicle for the airborne troops. The vehicle was to be a lightweight assault gun able to support the paratroopers by being transportable by air. The task was given to two design bureaus, OKB-40 headed by Nikolaj Astrov in Mytischi and the other to Anatoly Karvtsev in Moscow. Astrov designed his vehicle as the ''ASU-76'', armed with a 76 mm D-56T gun. The design ended up being too heavy and its armour way too thin for adequate protection and was cancelled. Kartsev's project was the ''K-73'' which was amphibious and used a 57 mm Ch-51 anti-tank gun as its armament. This was even more thinly armoured than the ASU-76 and was also cancelled.
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== Media ==
 
== Media ==
<!--''Excellent additions to the article would be video guides, screenshots from the game, and photos.''-->
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
Skin and Camouflages for the [https://live.warthunder.com/feed/camouflages/?vehicleCountry=ussr&vehicleType=tank&vehicleClass=tank_destroyer&vehicle=ussr_asu_57 ASU-57] in Warthunder Live.
 
  
{{youtube|url = i-V5rB5UOgA|The ASU-57}}
+
;Skins
 +
 
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=ussr_asu_57 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
 +
 
 +
;Videos
 +
{{Youtube-gallery|YuBjyMQLRy0|'''Airmobile tanks''' discusses the {{PAGENAME}} at 1:18 - ''War Thunder Official Channel''|i-V5rB5UOgA|'''ASU-57 Soviet Airborne Tank Destroyer''' - ''yolkhere''}}
  
 
== See also ==
 
== See also ==
<!--''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+
<!-- ''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;''
* ''links to approximate analogues of other nations and research trees.''-->
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* ''links to approximate analogues of other nations and research trees.'' -->
 +
 
 +
;Other vehicles of similar configuration and role
  
* [http://warthunder.com/en/news/3724-development-asu-57-air-delivery-en/ [Devblog<nowiki>]</nowiki> ASU-57: Air Delivery]
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* [[SU-57B]]
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* [[ASU-85]]
  
 
== External links ==
 
== External links ==
<!--''Paste links to sources and external resources, such as:''
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<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
* ''encyclopedia page on the tank;''
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* ''other literature.'' -->
* ''other literature.''-->
 
  
* [[Wikipedia:ASU-57|[Wikipedia<nowiki>]</nowiki> ASU-57]]
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* [[wt:en/news/3724-development-asu-57-air-delivery-en/|[Devblog] ASU-57: Air Delivery]]
 +
* [[Wikipedia:ASU-57|[Wikipedia] ASU-57]]
  
 
{{USSR tank destroyers}}
 
{{USSR tank destroyers}}

Revision as of 09:22, 8 October 2023

Rank VI USSR | Premium | Golden Eagles
Su-25K Pack
ASU-57
ussr_asu_57.png
GarageImage ASU-57.jpg
ArtImage ASU-57.png
ASU-57
AB RB SB
3.7 4.3 4.3
Research:18 000 Specs-Card-Exp.png
Purchase:47 000 Specs-Card-Lion.png
Show in game

Description

The ASU-57 (Авиадесантная самоходная установка, АСУ-57) was a small, light Soviet assault gun designed for use primarily by Soviet airborne troops. The ASU-57 was intended to be a lightweight assault gun that could be airdropped from the An-12 transport plane, the Soviet military's main cargo plane at the time, and deployed alongside troops via rocket-assisted parachute. The ASU-57 was the first effective Soviet airborne tank, overcoming shortcomings in previous Soviet doctrine dating back to the 1930s. It was lightly armoured and armed with a 57 mm Ch-51 tank gun, a modified version of the 57 mm ZiS-2 anti-tank gun employed during World War II. Beginning in 1954, an improved 57 mm Ch-51M tank gun was mounted, with a somewhat shorter double-baffle muzzle brake. One significant disadvantage was the vehicle's welded aluminium structure, which provided insufficient protection for the crew. During its operational years, each airborne division would have received 54 such vehicles. Beginning in 1960, it was gradually phased out in favour of the ASU-85.

Introduced in Update 1.59 "Flaming Arrows", the ASU-57 is extremely vulnerable since it lacks armour and weighs only 3.3 tonnes. ASU-57 gameplay is exceedingly difficult, but it can also be extremely rewarding. Because of its small size, the ASU-57 can readily conceal itself behind low obstacles on the battlefield, making ambushes and surprise strikes its speciality. The ASU-57, on the other hand, is extremely susceptible to virtually any form of fire. Aircraft are extremely dangerous due to the exposed crew compartment. It is recommended that players only engage isolated enemies one at a time, as dealing with multiple opponents will be extremely difficult.

General info

Survivability and armour

Armourfront / side / back
Hull6 / 4 / 6
Turret0 / 0 / 0
Crew3 people
Visibility55 %

Due to the weight restrictions necessary for air portability, the ASU-57 has nearly no armour to speak of, and the side armour can be penetrated by even rifle-calibre machine guns. It has no armoured roof, and is thus extremely vulnerable to strafing runs by aircraft.

Armour type:

  • Rolled homogeneous armour
Armour Front (Slope angle) Sides Rear (Slope angle) Roof Belly
Body 6 mm (21-65°) Front Plate
6 mm (38°) Lower glacis
4 mm 6 mm (9°) 5 mm 6 mm

Notes:

  • Suspension wheels are 10 mm thick, tracks are 15 mm thick

Mobility

Speedforward / back
AB50 / 6 km/h
RB and SB46 / 6 km/h
Number of gears4 forward
1 back
Weight3.4 t
Engine power
AB105 hp
RB and SB55 hp
Power-to-weight ratio
AB30.9 hp/t
RB and SB16.2 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 50 6 3.4 78 105 22.94 30.88
Realistic 46 6 49 55 14.41 16.18

While the ASU-57 has a top speed below 50 km/h, it has an excellent power/weight ratio that allows the vehicle to accelerate very quickly to reach its top speed. It is thus very mobile and turns very quickly. However, it has a poor reverse speed of only 5 km/h, which makes it hard to back up into cover or away from a threat.

Modifications and economy

Repair costBasic → Reference
AB889 → 1 250 Sl icon.png
RB1 120 → 1 575 Sl icon.png
SB1 459 → 2 052 Sl icon.png
Total cost of modifications19 940 Rp icon.png
32 400 Sl icon.png
Talisman cost980 Ge icon.png
Crew training13 000 Sl icon.png
Experts47 000 Sl icon.png
Aces330 Ge icon.png
Research Aces280 000 Rp icon.png
Reward for battleAB / RB / SB
70 / 100 / 140 % Sl icon.png
136 / 136 / 136 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods new tank break.png
Brake System
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods new tank filter.png
Filters
Research:
1 700 Rp icon.png
Cost:
2 800 Sl icon.png
180 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods new tank engine.png
Engine
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods tank reinforcement ussr.png
Crew Replenishment
Research:
1 700 Rp icon.png
Cost:
2 800 Sl icon.png
180 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods airstrike.png
Airstrike
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods tank ammo.png
57mm_AP_ammo_pack
Research:
740 Rp icon.png
Cost:
1 200 Sl icon.png
80 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
1 700 Rp icon.png
Cost:
2 800 Sl icon.png
180 Ge icon.png
Mods scouting.png
Improved optics
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods tank ammo.png
57mm_APCR_ammo_pack
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png
Mods night vision device.png
NVD
Research:
1 300 Rp icon.png
Cost:
2 100 Sl icon.png
140 Ge icon.png

Armaments

Night vision device
Improves visibility by enhancing natural light or active illumination.

Main armament

Ammunition30 rounds
Reloadbasic crew → aces
6.5 → 5.0 s
Vertical guidance-5° / 12°
Horizontal guidance-8° / 8°
Main article: Ch-51M (57 mm)

The ASU-57 is armed with the 57 mm Ch-51M, a derivative of the 57 mm ZiS-2 anti-tank gun encountered previously on the ZiS-30. The mounting has a very limited amount of gun depression and traverse due to the small size of the ASU-57. The gun itself has a fairly fast reload, which is a good thing since it is not uncommon for the first penetrating hit to not completely destroy the target.

57 mm Ch-51M Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 30 -5°/+12° ±8° N/A 10.57 14.63 17.76 19.64 20.89 6.50 5.75 5.30 5.00
Realistic 7.14 8.40 10.20 11.28 12.00

Ammunition

  • BR-271SP: APBC; a solid shot with a good penetration but no explosive filler. It is your stock shell, use it until you unlock BR-271M.
  • BR-271M: APCBC; an armour-piercing round with ballistic cap and explosive filler. It will punch through most targets frontally and its explosive filler will take out most targets in a single shot. This should be your main shell once you unlock it.
  • BR-271N: APCR; a composite round with a slightly increased penetration but no explosive filler and will only penetrate flat vertical surfaces. The small added penetration (a few mm) does not make a viable ammo choice to deal with heavily armoured targets.
  • O-271: HE; a slow round with a high explosive mass useful for taking out the crew of open-topped vehicles. As it won't consistently kill SPAAGs due to the small calibre and low explosive mass, don't try to hunt these vehicles as they will kill you much faster than you will.

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
BR-271SP APBC 142 139 125 109 96 84
BR-271M APCBC 155 151 135 118 102 89
O-271 HE 12 12 10 8 6 5
BR-271N APCR 159 155 140 123 108 94
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%
BR-271SP APBC 975 3.14 - - - 48° 63° 71°
BR-271M APCBC 1,020 2.8 1.2 9 20.02 48° 63° 71°
O-271 HE 695 3.72 0.4 0.1 220 79° 80° 81°
BR-271N APCR 1,125 2.4 - - - 66° 70° 72°

Ammo racks

Ammo racks of the ASU-57
Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
Visual
discrepancy
30 25 (+5) 19 (+11) (+29) No

Notes:

  • Racks disappear after you've fired all shells in the rack.
  • Right side empty: 19 (+11) shells.

Usage in battles

One of the smallest tracked vehicles in the game, weighing only 3.3 tons, the ASU-57's complete lack of armour makes it extremely vulnerable. Its only defense is its small size, making it extremely difficult to notice, let alone hit. It accelerates quickly and is very nimble for a turretless tank destroyer.

The ASU-57 is very difficult but can be very rewarding and fun to play. It is not recommended for arcade battles, as its primary advantage, stealth, is lost. The ASU-57 is a master of stealth, famed and beloved by the community for its ability to sneak up on tanks using its extremely small size. When using the ASU-57, objects that other tanks would ignore or simply drive over are capable of completely hiding the vehicle, making ambushes and surprise attacks the specialty of the ASU-57. This size comes at a cost, however, as the ASU-57 is extremely vulnerable to almost anything that can shoot at it. Aircraft are especially dangerous due to the open crew compartment.

The ASU-57 is best used as an ambusher/flanker, executing surprise attacks from unexpected locations other vehicles would struggle or be unable to reach. The ASU-57 is incredibly short, and by driving up next to an enemy it can render the enemy tank completely helpless, as almost no vehicle has enough gun depression to reach it. For this reason, it is recommended to only go after isolated vehicles, as an enemy teammate will be able to assist their ally by destroying the ASU-57. For the maximum efficiency of this tactic, knock out the driver of the enemy vehicle, then rush up to their side before they can bring their gun to bear.

Sniping can also be a very good tactic, thanks to the amazing velocity of BR-271M (over 1,000 m/s) and consequently penetration, also thanks to your very low profile you are very hard to spot/hit at far range. Be careful though when engaging American vehicles as they can just spray their .50 cals at you, knocking your crew out even at long range.

Note that the ASU-57 is the lowest ranked vehicle in the game with access to night vision devices, a useful feature in night battles.

Enemies worth noting

As the ASU-57 can be easily knocked out by most enemies, it does not makes sense to list all opponents. However, some foes are more dangerous than others as they may survive your shots.

  • Panther D, Tiger H1: in uptiers you can see those two big cats. The Panther's UFP is immune to all your rounds, so better aim for the left side (right when facing it) of the gun mantlet, this will usually knock out gunner, commander and with some luck the gun breech. For the Tiger, aim for the front hull if it is not angled as you can punch right through. If it is angled, in this situation it is better to just retreat and relocate. The best is still to get a side shot on both of them. An important note is that with their enormous size and your rounds small explosive mass, you can and will struggle to destroy them; actually a shot to the middle of the Tiger's UFP wont take out a single crew member, only damage them.
  • KV-1B/C (germany). Those can be really tricky even side shots can non-pen, treat similarly as a Tiger, the armour layout is very similar, especially on the hull.

Pros and cons

Pros:

  • Tiny size, can easily hide in unexpected places, making it difficult to spot and hit
  • Smallest of bushes are able to hide the tank
  • Armour is too thin to trigger APHE fuses
  • Excellent mobility
  • Powerful 57 mm gun for its BR
  • Access to NVDs
  • Given the abilities of a light tank (scouting, help repair)
  • Very short profile, most tanks can't kill it with their main gun up close

Cons:

  • Virtually no armour: can be destroyed by overpressure, 12.7 mm will chew right through it and even 7.62 mm machine guns can penetrate the armour at close range.
  • Open-topped, extremely vulnerable to aircraft
  • Low ammunition capacity
  • 57 mm gun rarely destroys vehicles with one shot
  • Zero stabilisation and extremely bouncy suspension, making quick shoot and scoots difficult
  • Poor gun depression and horizontal traverse
  • Gun located at the bottom of the vehicle, meaning in order to fire the whole tank must be exposed
  • NVDs are only available in 3rd person or in the Commander's view

History

Development

In mid-1940s, sometime either late in World War II or post-war, a proposal was made to develop a vehicle for the airborne troops. The vehicle was to be a lightweight assault gun able to support the paratroopers by being transportable by air. The task was given to two design bureaus, OKB-40 headed by Nikolaj Astrov in Mytischi and the other to Anatoly Karvtsev in Moscow. Astrov designed his vehicle as the ASU-76, armed with a 76 mm D-56T gun. The design ended up being too heavy and its armour way too thin for adequate protection and was cancelled. Kartsev's project was the K-73 which was amphibious and used a 57 mm Ch-51 anti-tank gun as its armament. This was even more thinly armoured than the ASU-76 and was also cancelled.

In 1949, Astrov was able to continue work on his design, but with specifications that the vehicle be made lighter and use the 57 mm Ch-51 gun instead due to its anti-tank performances. The redesigned vehicle was labeled Object 572 and passed the test phases in 1949. It was formally accepted for service as the ASU-57 in 1951 and production lasted from 1950 to 1952 with amounts produced up to a thousand.

Usage

The ASU-57, as an airborne vehicle, was made to be air-dropped from planes and land via a rocket-assisted parachute. It was then crewed by its airborne crew and support the airborne troops in their operation. Each airborne division had 54 vehicles at its disposal. It proved successful despite its weak armour and small caliber as this type of vehicle was invaluable in the hands of airborne troops, able to use a mobile artillery vehicle behind enemy lines. The ASU-57 stayed in service in the Soviet Airborne Forces for around 20 years before being replaced by the ASU-85.

The ASU-57 was also given out to the Soviet Union's allies from 1960s to 70s. Such included Egypt, East Germany, North Korea, Poland, Sahrawi Republic, Vietnam, Yugoslavia, and Ethiopia.

Media

Skins
Videos

See also

Other vehicles of similar configuration and role

External links


USSR tank destroyers
SU-76M  SU-76M · SU-76M (5th Gv.Kav.Corps) · SU-85A
SU-57B  SU-57B · SU-76D
T-34 Derivatives  SU-122 · SU-85 · SU-85M · SU-100 · SU-122P
Heavy Tank Derivatives  SU-100Y · ISU-122 · ISU-122S · SU-152 · ISU-152 · Object 268
SU-100P and Derivatives  SU-100P · Object 120
Wheeled  YaG-10 (29-K)
Airborne  ASU-57 · ASU-85
Rocket  BM-8-24 · BM-13N · BM-31-12
ATGM  IT-1 · Shturm-S · Object 775 · Khrizantema-S
Artillery  2S1 · 2S3M
Other  SU-5-1 · ZiS-30 · SU-122-54
USA  SU-57