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A-20

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A-20

AnnoR12_A-20.png
Battle Tier
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Overview
Mouse over "
Well, the ones further down, of course.
" for more information
[Client Values; Actual values in
Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.
]
134,000  Credits Cost
310340 HP Hit Points
17.53/19.517.61/19.95 t Weight Limit
Crew
  1. Commander (Loader)
  2. Radio Operator
  3. Driver
  4. Gunner
Mobility
480500 hp Engine Power
72/20 km/h Speed Limit
4446 deg/s Traverse
27.3828.39 hp/t Power/Wt Ratio
NoNo Pivot
Armor
20/20/16 mm Hull Armor
25/25/2537/37/25 mm Turret Armor
Armament







{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/APCR/HE







{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/APCR/HE
Shells




















14/800/14




















35/800/10
Shell Cost
47/47/6240/40/50 HP Damage
51/88/2346/62/19 mm Penetration



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26.09 r/m 

Standard Gun

Reload Times
Nominal: 2.3 s
50% Crew: 2.93 s
75% Crew: 2.58 s
100% Crew: 2.3 s
Rammer: 2.07 s
Vents: 2.25 s
Both: 2.02 s
Both and BiA: 1.98 s
Both and Max Crew %: 1.9 s

See Crew, Consumables, or Equipment for more information.



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54.35 r/m 

Magazine-fed Gun

Burst Length: 3 rounds
Magazine Size: 5 rounds
Cycle Time: 0.33 s
Magazine Reload Times
Nominal: 4.2 s
50% Crew: 5.35 s
75% Crew: 4.7 s
100% Crew: 4.2 s
With Vents: 4.1 s
With Vents and BiA: 4.03 s

Click here for more information.
Rate of Fire






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1233.75

Standard Gun

Using Shell Type 1 (47 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1233.75
50% Crew: 969.14
75% Crew: 1101.68
100% Crew: 1233.75
100% Crew
Vents: 1262.42
Rammer: 1370.99
Both: 1402.95
Both and BiA: 1429.74
Both and Max Crew %: 1491.31

Advantageous Damage Per Minute
First-shot DPM: 1280.75
50% Crew: 1016.14
75% Crew: 1148.68
100% Crew: 1280.75
100% Crew
Rammer: 1417.99
Vents: 1309.42
Both: 1449.95
Both and BiA: 1476.74
Both and Max Crew %: 1538.31

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (47 Damage):


Theoretical Damage Per Minute
Nominal DPM: 1233.75
50% Crew: 969.14
75% Crew: 1101.68
100% Crew: 1233.75
100% Crew
Vents: 1262.42
Rammer: 1370.99
Both: 1402.95
Both and BiA: 1429.74
Both and Max Crew %: 1491.31

Advantageous Damage Per Minute
First-shot DPM: 1280.75
50% Crew: 1016.14
75% Crew: 1148.68
100% Crew: 1280.75
100% Crew
Rammer: 1417.99
Vents: 1309.42
Both: 1449.95
Both and BiA: 1476.74
Both and Max Crew %: 1538.31

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (62 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1627.5
50% Crew: 1278.44
75% Crew: 1453.28
100% Crew: 1627.5
100% Crew
Vents: 1665.32
Rammer: 1808.54
Both: 1850.7
Both and BiA: 1886.04
Both and Max Crew %: 1967.26

Advantageous Damage Per Minute
First-shot DPM: 1689.5
50% Crew: 1340.44
75% Crew: 1515.28
100% Crew: 1689.5
100% Crew
Rammer: 1870.54
Vents: 1727.32
Both: 1912.7
Both and BiA: 1948.04
Both and Max Crew %: 2029.26

See here, here, or here for more information.






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276

Magazine-fed Gun

Using Shell Type 1 (40 Damage):


Theoretical Damage Per Minute
Nominal: 276
50% Crew: 224
75% Crew: 250.4
100% Crew: 276
With Vents: 281.6
With Vents and BiA: 286

Advantageous Damage Per Minute
Loaded-mag DPM: 446.4
50% Crew: 400
75% Crew: 423.6
100% Crew: 446.4
With Vents: 451.2
With Vents and BiA: 455.2

Click here for more information.

Magazine-fed Gun

Using Shell Type 2 (40 Damage):


Theoretical Damage Per Minute
Nominal: 276
50% Crew: 224
75% Crew: 250.4
100% Crew: 276
With Vents: 281.6
With Vents and BiA: 286

Advantageous Damage Per Minute
Loaded-mag DPM: 446.4
50% Crew: 400
75% Crew: 423.6
100% Crew: 446.4
With Vents: 451.2
With Vents and BiA: 455.2

Click here for more information.

Magazine-fed Gun

Using Shell Type 3 (50 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal: 345
50% Crew: 280
75% Crew: 313
100% Crew: 345
With Vents: 352
With Vents and BiA: 357.5

Advantageous Damage Per Minute
Loaded-mag DPM: 558
50% Crew: 500
75% Crew: 529.5
100% Crew: 558
With Vents: 564
With Vents and BiA: 569

Click here for more information.
Damage Per Minute


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0.46 m 

With 50% Crew: 0.57 m
With 75% Crew: 0.498 m
With 100% Crew: 0.441 m
With BiA: 0.431 m
With BiA and Vents: 0.422 m
Maximum possible: 0.404 m

For more details, see Crew


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0.45 m 

With 50% Crew: 0.557 m
With 75% Crew: 0.487 m
With 100% Crew: 0.431 m
With BiA: 0.422 m
With BiA and Vents: 0.413 m
Maximum possible: 0.396 m

For more details, see Crew
Accuracy


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1.9 s 

With 50% Crew: 2.354 s
With 75% Crew: 2.055 s
With 100% Crew: 1.822 s
With GLD: 1.656 s
With BiA: 1.782 s
With BiA and Vents: 1.743 s
With both and GLD: 1.584 s
Maximum possible: 1.519 s

For more details, see Crew or Equipment


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2.3 s 

With 50% Crew: 2.849 s
With 75% Crew: 2.488 s
With 100% Crew: 2.205 s
With GLD: 2.005 s
With BiA: 2.157 s
With BiA and Vents: 2.11 s
With both and GLD: 1.918 s
Maximum possible: 1.839 s

For more details, see Crew or Equipment
Aim time
4550 deg/s Turret Traverse
360° Gun Arc
-7°/+25°-7°/+27° Elevation Arc
150140 rounds Ammo Capacity
General
1515 % Chance of Fire






300 m 

With 50% Crew: 235.7 m
With 75% Crew: 267.9 m
With 100% Crew: 300 m
With Recon and Situational Awareness: 315.2 m
With Coated Optics: 330 m
With Binocular Telescope: 375 m
Maximum possible: 429.5 m

For more details, see Skills or Equipment






330 m 

With 50% Crew: 259.3 m
With 75% Crew: 294.7 m
With 100% Crew: 330 m
With Recon and Situational Awareness: 346.7 m
With Coated Optics: 363 m
With Binocular Telescope: 412.5 m
Maximum possible: 472.4 m

For more details, see Skills or Equipment
View Range


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325 m 

With 50% Crew: 262.4 m
With 75% Crew: 300.5 m
With 100% Crew: 339 m
With 100% Signal Boost: 390 m
When affected by 100% Relaying: 357.5 m
Maximum possible: 487.9 m

For more details, see Skills or Equipment


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615 m 

With 50% Crew: 496.5 m
With 75% Crew: 568.6 m
With 100% Crew: 641.4 m
With 100% Signal Boost: 738 m
When affected by 100% Relaying: 676.5 m
Maximum possible: 923.2 m

For more details, see Skills or Equipment
Signal Range
Values are Stock - click for Top


IV

annoA-20.png

134000

The A-20 is a Soviet tier 4 light tank.

Development of the A-20 tank started at Kharkiv Factory No. 183 in December 1937. The project was a further development of the BT-7 tank and became a predecessor of the legendary T-34. Work on the vehicle was led by Mikhail Koshkin. On May 18, 1938, technical characteristics of the tank designated BT-20 were approved. Only a few experimental prototypes, with a wheeled caterpillar suspension, were built for training purposes.

The A-20 is a very fast tank with a high top speed, but suffers from poor maneuverability at high speed.

The A-20 leads to the T-34, and the T-50.

Modules / Available Equipment and Consumables

Modules

Ico_gun_alpha.png

Guns

Tier Gun Penetration
(mm)
Damage
(HP)
Rate of fire
(rounds/minute)
Dispersion
(m/100m)
Aiming time
(s)
Weight
(kg)
Price
(Credits)

IV 76 mm L-11 68/75/38 110/110/156 10 0.51 2.9 660 25990
IV 45 mm VT-42 75/110/23 55/55/65 26.09 0.37 1.9 312 20540
III 37 mm ZiS-19 58/92/19 40/40/50 26.09 0.39 1.9 200 4250
II 45 mm 20K 51/88/23 47/47/62 26.09 0.46 1.9 250 2530
V 37 mm Automatic SH-37 46/62/19 40/40/50 54.22 0.45 2.3 200 26980

Ico_turret_alpha.png

Turrets

Tier Turret Turret Armor (front/sides/rear)
(mm)
Turret Traverse Speed
(deg/s)
View Range
(m)
Weight
(kg)
Price
(Credits)

III A-20 mod. 1938 25/25/25 45 300 1200 1880
IV SP-3 37/37/25 50 330 1300 5170

Ico_engine_alpha.png

Engines

Tier Engine Engine Power
(hp)
Chance of Fire on Impact
(%)
Weight
(kg)
Price
(Credits)

V V-2 480 15 750 18750
VI V-2-34 500 15 750 27860

Ico_suspension_alpha.png

Suspensions

Tier Suspension Load Limit
(т)
Traverse Speed
(гр/сек)
Rmin Weight
(kg)
Price
(Credits)

III A-20 mod. 1938 19.5 44 B/2 5000 1420
IV A-20 mod. 1941 19.95 46 B/2 5000 3580

Ico_radio_alpha.png

Radios

Tier Radio Signal Range
(м)
Weight
(kg)
Price
(Credits)

IV 9R 325 80 1980
IX 12LL 615 110 33600


Compatible Equipment

Light Spall Liner Camouflage Net Coated Optics Enhanced Gun Laying Drive Enhanced Christie Suspension Cyclone Filter Improved Ventilation Class 1 Medium-Caliber Tank Gun Rammer Binocular Telescope Toolbox "Wet" Ammo Rack Class 1 

Compatible Consumables

Automatic Fire Extinguisher Manual Fire Extinguisher Large First Aid Kit Large Repair Kit Lend-Lease Oil Extra Combat Rations Removed Speed Governor Small First Aid Kit Small Repair Kit 


Player Opinion

Pros and Cons

Pros:


  • Above average engine power, top speed, and traverse speed.
  • Good rate of fire and penetration, with better aim time and dispersion than the T-50
  • Above average signal range.
  • Well-sloped armor can provide some protection.
  • No scout matchmaking


Cons:


  • Below average view range.
  • Poor agility at high speeds.
  • Somewhat large for a light tank.


Performance

On paper, the A-20 seems to be a perfectly fine Tier 4 light tank. It has a decent gun selection for Tier 4 (although the T-46 receives the same weapons one tier earlier), and it seems to have a very high top speed and good hull traverse. Unfortunately, the A-20 has issues which are not immediately obvious from just looking at the ingame statistics.

At one point of its history the A-20 received so-called "scout matchmaking". This meant that the A-20 saw up to Tier 8 battles, which was be incredibly frustrating to new players who have no experience scouting, to say the least. Thankfully, with patch 9.1, this was rectified somewhat, and now the tank sees the same sort of tier spread other tier 4 tanks share.

This isn't to say that the A-20 doesn't have its share of issues. The A-20's mobility statistics are a lie, for one. It has a tendency to bleed an incredible amount of speed on turns, and its acceleration and maneuverability are nowhere near as good as other lights. Active scouting (running about and dashing from cover to cover, spotting enemy tanks for your team) is very dangerous, and requires a lot of skill and forethought. However, the turning radius and speed are surprisingly tight, much like the BT-7. The A-20's view range is disappointingly bad for passive scouting as well. While the Pz.Kpfw. 38 (t) n.A. at least has an excellent 370 m view range, the A-20 only has a view range of 330 m. Despite the A-20's camouflage bonuses as a light tank, significant investment in the Camouflage skill is required in order to negate this weakness.

Firepower-wise, the A-20 doesn't really have much to complain about. The stock gun, the 45 mm 20K, and the 37 mm ZiS-19, which were previously used on the Tier 2 BT-2 and Tier 3 BT-7, are excellent and mediocre on those tanks, respectively. At Tier 4, they are completely useless, and should be gotten rid of as quickly as possible. There are three viable weapons. The 37 mm Automatic SH-37 is, as the name suggests, a magazine-fed autocannon. It is good enough to kill lightly armoured artillery and tank destroyers and light tanks, but little else. The 45 mm VT-42 offers good accuracy, rate-of-fire, and aim time, as well as fairly good penetration (for Tier 4) in exchange for low alpha damage, making it an ideal sniper weapon. The 76 mm L-11 is the complete opposite, with terrible accuracy and aim time, low rate-of-fire, but good alpha damage. It works better at close ranges. Against Tier 4, 5, and even 6 tanks, the A-20 can still do some damage.

Unsurprisingly, since it is a light tank, the A-20 has no armor to speak of, and despite the good sloping, it should never rely on its armor to save it from enemy fire.


Early Research

  • The 37 mm ZiS-19 and 12LL radio carry over from the BT-7, and should be installed immediately.
  • The A-20 bis turret is absolutely necessary for the all-important increase in view range, and is also needed to mount the more advanced guns.
  • Depending on playstyle, the 76 mm L-11 or 45 mm VT-42 should be researched next.
  • The V-2-34 engine provides a small, but not very significant, increase in horsepower, and is also used on the T-34.
  • The 37 mm Automatic SH-37 can be researched next, or may be skipped entirely if there is no intention to use it.
  • Finally, the A-20 mod. 1941 suspension should be researched last. It allegedly provides a 2 d/s increase in hull traverse, but practically has no noticeable benefits to the A-20's agility.


Suggested Equipment


Improved Ventilation Class 1Medium-Caliber Tank Gun Rammer Cyclone Filter Coated Optics Binocular Telescope 


Gallery

Historical Info

Origin
A-20 during trials

Once it was realized that the BT tanks didn't have sufficient armor or armament, a new design was developed for a fast medium tank. In 1937, the Kharkov factory was ordered to design a new tank, and the design work started in November 1937. The chief designer was Mikhail Koshkin and his deputy, Alexsandr Morozov.

Design features The A-20 had sloping sides and a small angular turret with 25mm of armor. The tracks could be removed and could be run on just the wheels. The chassis itself was based on the BT-7M. The hull had a V-shaped glacis plate and was angled at 60°. The A-20's hull also overhung the tracks with the sides angled at 25°. In 1939, a 76.2 mm gun was installed and the vehicle was designated as the A-30. This was the same gun that was installed in the BT-7. There was an attempt to place a short barrelled 76.2 mm gun in the A-20's turret, but it just didn't work, as the turret ring couldn't absorb the recoil.

Prototype In May 1938, a wooden model of the A-20 was shown to the Defense Council of the Soviet People's Commissars (Soviet Narodnykh Komissarov, or SNAKE). Some didn't like the wheel / tracks feature carried over from the BT series, and Koshkin said it added weight that just wasn't necessary. The design had a 45 mm gun, which Koshkin said should be replaced by a 76.2 mm gun, as it was inadequate. Stalin was at this presentation and ordered that the Kharkov factory build not only a full-size prototype of the A-20, but also make the requested design changes and build a prototype that would be designated the A-30. In August 1938, the High War Council, let by the People's Commissar for Defense, K. J. Voroshilov, discussed the A-20 and T-32. Many on the Council disliked the T-32. In July 1939, the Kharkov Locomotive Factory had completed the prototypes for the A-20 and T-32. They were both then tested and it was decided to go with the T-32. On December 19, 1939, the People's Commissariat for Defense released the T-32 to the Red Army. It was soon designated the T-34.

In 1939, tests were conducted with the T-32 and A-20: the T-32 was selected as it had better fire power and armor.


Historical Gallery

Sources and External Links

USSR
Light Tanks IMS-1 IIBT-2 IIT-45 IIT-26 IIT-60 IITetrarch IIIBT-7 IIIBT-SV IIILTP IIIM3 Light IIIBT-7 artillery IIIT-127 IIIT-46 IIIT-70 IVA-20 IVT-80 IVValentine II VT-50 VIMT-25 VIILTG VIIILTTB IXT-54 ltwt. XT-100 LT
Medium Tanks IVA-32 IVT-28E with F-30 IVT-28 VMatilda IV VT-34 VIA-43 VIT-34-85M VIT-34-85 Rudy VIT-34-85 VIIA-44 VIIKV-13 VIIT-43 VIIT-44-122 VIIIObject 416 VIIIT-54 first prototype VIIIT-44-100 (R) VIIIT-44 IXObject 430 Version II IXT-54 XObject 140 XObject 430 XObject 907 XT-22 medium XT-62A
Heavy Tanks VChurchill III VKV-1S VKV-220-2 VKV-220-2 Beta Test VKV-1 VIKV-2 VIKV-85 VIT-150 VIIIS VIIKV-3 VIIKV-122 VIIIS-2 VIIIIS-3 VIIIIS-6 VIIIKV-5 VIIIKV-4 VIIIIS-5 (Object 730) VIIIIS-3A VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U IXT-10 IXST-I XIS-4 XIS-7 XObject 260
Tank Destroyers IIAT-1 IIISU-76M IIISU-76I IVSU-85B VSU-85 VSU-85I VISU-100 VISU-100Y VIIISU-122S VIISU-152 VIISU-100M1 VIISU-122-44 VIIIISU-152 VIIIISU-130 VIIISU-101 IXObject 704 IXSU-122-54 XObject 263 XObject 268
Self-Propelled Artillery IISU-18 IIISU-26 IVSU-5 VSU-122A VISU-8 VIIS-51 VIISU-14-1 VIIISU-14-2 IX212A XObject 261
Light Tanks
USA IT1 Cunningham IIM2 Light Tank IIT1E6 IIT2 Light Tank IIT7 Combat Car IIIM22 Locust IIIM3 Stuart IVM5 Stuart VM24 Chaffee VM7 VIT21 VIT37 VIIT71 VIIIM41 Walker Bulldog IXT49 XXM551 Sheridan
UK IICruiser Mk. I IIM2 IICruiser Mk. III IILight Mk. VIC IIIStuart I-IV IIICruiser Mk. IV IIICruiser Mk. II IVValentine IVCovenanter
Germany ILeichttraktor IIPz.Kpfw. II Ausf. D IIPz.Kpfw. 38H 735 (f) IIPz.Kpfw. 35 (t) IIPz.Kpfw. I IIPz.Kpfw. II III43 M. Toldi III IIIPz.Kpfw. 38 (t) IIIPz.Kpfw. III Ausf. E IIIPz.Kpfw. II Ausf. J IIIPz.Kpfw. I Ausf. C IIIPz.Kpfw. II Ausf. G IIIPz.Kpfw. T 15 IVPz.Kpfw. 38 (t) n.A. IVPz.Kpfw. II Luchs VVK 16.02 Leopard VIVK 28.01 VIIAufklärungspanzer Panther VIISpähpanzer SP I C VIIIleKpz M 41 90 mm GF VIIIHWK 12 IXSpähpanzer Ru 251 XRheinmetall Panzerwagen
France IRenault FT IID1 IIFCM 36 IIRenault R35 IIHotchkiss H35 IIIAMX 38 IVAMX 40 VAMX ELC bis VIAMX 12 t VIIAMX 13 75 VIIAMX 13 57 GF VIIIBat.-Châtillon 12 t IXAMX 13 90 XAMX 13 105
USSR IMS-1 IIBT-2 IIT-45 IIT-26 IIT-60 IITetrarch IIIBT-7 IIIBT-SV IIILTP IIIM3 Light IIIBT-7 artillery IIIT-127 IIIT-46 IIIT-70 IVA-20 IVT-80 IVValentine II VT-50 VIMT-25 VIILTG VIIILTTB IXT-54 ltwt. XT-100 LT
China IRenault NC-31 IIVickers Mk. E Type B IIIType 2597 Chi-Ha IVM5A1 Stuart VI59-16 VIType 64 VIIType 62 VIIWZ-131 VIIIWZ-132 IXWZ-132A XWZ-132-1
Japan IRenault Otsu IIType 95 Ha-Go IIType 97 Te-Ke IIIType 98 Ke-Ni IVType 5 Ke-Ho
Czechoslovakia IKolohousenka IILT vz. 35 IIILT vz. 38
Sweden IStrv fm/21 IIStrv m/38 IIL-60 IIIStrv m/40L