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M12

AnnoA32_M12.png
Battle Tier
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Overview
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Well, the ones further down, of course.
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[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.
]
1,400,000  Credits Cost
35070 HP Hit Points
26.84/2716.59/29.5 t Weight Limit
Crew
  1. Commander
  2. Gunner
  3. Driver
  4. Radio Operator
  5. Loader
  6. Loader
Mobility
400500 hp Engine Power
38.6/10 km/h Speed Limit
1820 deg/s Traverse
14.930.14 hp/t Power/Wt Ratio
YesYes Pivot
Armor
// mm Hull Armor
Armament







{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||



{{#ifeq:ARMOR_PIERCING|ARMOR_PIERCING||


HE/HE







{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||



{{#ifeq:ARMOR_PIERCING|ARMOR_PIERCING||


HE/HE
Shells




















990/1180/1140




















1120/1320/1290
Shell Cost
600/750/420600/750/420 HP Damage
39/49/20639/49/218 mm Penetration



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2.11 r/m 

Standard Gun

Reload Times
Nominal: 28.5 s
50% Crew: 35.31 s
75% Crew: 30.83 s
100% Crew: 27.33 s
Rammer: 24.6 s
Vents: 26.73 s
Both: 24.06 s
Both and BiA: 23.53 s
Both and Max Crew %: 22.56 s

See Crew, Consumables, or Equipment for more information.



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2.17 r/m 

Standard Gun

Reload Times
Nominal: 27.7 s
50% Crew: 34.31 s
75% Crew: 29.96 s
100% Crew: 26.56 s
Rammer: 23.9 s
Vents: 25.97 s
Both: 23.38 s
Both and BiA: 22.87 s
Both and Max Crew %: 21.92 s

See Crew, Consumables, or Equipment for more information.
Rate of Fire






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1266

Standard Gun

Using Shell Type 1 (600 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1266
50% Crew: 1020
75% Crew: 1170
100% Crew: 1320
100% Crew
Vents: 1350
Rammer: 1464
Both: 1500
Both and BiA: 1536
Both and Max Crew %: 1602

Advantageous Damage Per Minute
First-shot DPM: 1866
50% Crew: 1620
75% Crew: 1770
100% Crew: 1920
100% Crew
Rammer: 2064
Vents: 1950
Both: 2100
Both and BiA: 2136
Both and Max Crew %: 2202

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (750 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1582.5
50% Crew: 1275
75% Crew: 1462.5
100% Crew: 1650
100% Crew
Vents: 1687.5
Rammer: 1830
Both: 1875
Both and BiA: 1920
Both and Max Crew %: 2002.5

Advantageous Damage Per Minute
First-shot DPM: 2332.5
50% Crew: 2025
75% Crew: 2212.5
100% Crew: 2400
100% Crew
Rammer: 2580
Vents: 2437.5
Both: 2625
Both and BiA: 2670
Both and Max Crew %: 2752.5

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (420 Damage):


Theoretical Damage Per Minute
Nominal DPM: 886.2
50% Crew: 714
75% Crew: 819
100% Crew: 924
100% Crew
Vents: 945
Rammer: 1024.8
Both: 1050
Both and BiA: 1075.2
Both and Max Crew %: 1121.4

Advantageous Damage Per Minute
First-shot DPM: 1306.2
50% Crew: 1134
75% Crew: 1239
100% Crew: 1344
100% Crew
Rammer: 1444.8
Vents: 1365
Both: 1470
Both and BiA: 1495.2
Both and Max Crew %: 1541.4

See here, here, or here for more information.






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1302

Standard Gun

Using Shell Type 1 (600 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1302
50% Crew: 1050
75% Crew: 1206
100% Crew: 1356
100% Crew
Vents: 1386
Rammer: 1506
Both: 1542
Both and BiA: 1572
Both and Max Crew %: 1644

Advantageous Damage Per Minute
First-shot DPM: 1902
50% Crew: 1650
75% Crew: 1806
100% Crew: 1956
100% Crew
Rammer: 2106
Vents: 1986
Both: 2142
Both and BiA: 2172
Both and Max Crew %: 2244

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (750 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1627.5
50% Crew: 1312.5
75% Crew: 1507.5
100% Crew: 1695
100% Crew
Vents: 1732.5
Rammer: 1882.5
Both: 1927.5
Both and BiA: 1965
Both and Max Crew %: 2055

Advantageous Damage Per Minute
First-shot DPM: 2377.5
50% Crew: 2062.5
75% Crew: 2257.5
100% Crew: 2445
100% Crew
Rammer: 2632.5
Vents: 2482.5
Both: 2677.5
Both and BiA: 2715
Both and Max Crew %: 2805

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (420 Damage):


Theoretical Damage Per Minute
Nominal DPM: 911.4
50% Crew: 735
75% Crew: 844.2
100% Crew: 949.2
100% Crew
Vents: 970.2
Rammer: 1054.2
Both: 1079.4
Both and BiA: 1100.4
Both and Max Crew %: 1150.8

Advantageous Damage Per Minute
First-shot DPM: 1331.4
50% Crew: 1155
75% Crew: 1264.2
100% Crew: 1369.2
100% Crew
Rammer: 1474.2
Vents: 1390.2
Both: 1499.4
Both and BiA: 1520.4
Both and Max Crew %: 1570.8

See here, here, or here for more information.
Damage Per Minute


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0.69 m 

With 50% Crew: 0.855 m
With 75% Crew: 0.746 m
With 100% Crew: 0.662 m
With BiA: 0.647 m
With BiA and Vents: 0.633 m
Maximum possible: 0.607 m

For more details, see Crew


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0.67 m 

With 50% Crew: 0.83 m
With 75% Crew: 0.725 m
With 100% Crew: 0.642 m
With BiA: 0.628 m
With BiA and Vents: 0.615 m
Maximum possible: 0.589 m

For more details, see Crew
Accuracy


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5.7 s 

With 50% Crew: 7.061 s
With 75% Crew: 6.165 s
With 100% Crew: 5.465 s
With GLD: 4.969 s
With BiA: 5.345 s
With BiA and Vents: 5.229 s
With both and GLD: 4.753 s
Maximum possible: 4.556 s

For more details, see Crew or Equipment


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5.5 s 

With 50% Crew: 6.813 s
With 75% Crew: 5.949 s
With 100% Crew: 5.274 s
With GLD: 4.794 s
With BiA: 5.157 s
With BiA and Vents: 5.045 s
With both and GLD: 4.587 s
Maximum possible: 4.396 s

For more details, see Crew or Equipment
Aim time
1212 deg/s Gun Traverse Speed
28° Gun Arc
-5°/+45°-3°/+45° Elevation Arc
2020 rounds Ammo Capacity
General
2020 % Chance of Fire






270 m 

With 50% Crew: 212.1 m
With 75% Crew: 241.1 m
With 100% Crew: 270 m
With Recon and Situational Awareness: 283.7 m
With Coated Optics: 297 m
With Binocular Telescope: 337.5 m
Maximum possible: 386.5 m

For more details, see Skills or Equipment






270 m 

With 50% Crew: 212.1 m
With 75% Crew: 241.1 m
With 100% Crew: 270 m
With Recon and Situational Awareness: 283.7 m
With Coated Optics: 297 m
With Binocular Telescope: 337.5 m
Maximum possible: 386.5 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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750 m 

With 50% Crew: 605.4 m
With 75% Crew: 693.4 m
With 100% Crew: 782.2 m
With 100% Signal Boost: 900 m
When affected by 100% Relaying: 825 m
Maximum possible: 1125.9 m

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

Additional Statistics
(Top Configuration)

Camouflage

  • Stationary: 12%
  • When Moving: 6%
  • When Firing: 1.7%


Terrain Resistance

  • On Hard Ground: 1.25
  • On Medium Ground: 1.44
  • On Soft Ground: 2.4


Dispersion Change Values

  • Turret Contribution
  • Rotation: 0.58
  • Shot Recoil: 5.57
  • Suspension Contribution
  • Acceleration: 0.4
  • Turning: 0.4


With 100% Crew

VII

AnnoA32_M12.png

1400000

The M12 is an American tier 7 self-propelled gun.

Development of the SPG started in the second half of 1941. The prototype underwent trials on February 12, 1942 and saw service in July 1942. The Pressed Steel Car Company produced 100 vehicles. Baldwin Locomotive Works modified the SPGs and re-equipped some M30 carriers. The vehicle saw service in the field artillery battalions and was used by the U.S.A. forces in Western Europe.

This SPG gains increased alpha and a very fast shell travel time compared to the M44 but it has a narrower gun traverse and slower reload and aim time. As is par for the American SPGs it has a slow hull traverse speed, but a respectable top speed and acceleration.

The M12 leads to the M40/M43.

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)

VI 155 mm Gun M1918M1 39/49/206 600/750/420 2.11 0.69 5.7 3953 61200
VII 155 mm Gun M1A1 39/49/218 600/750/420 2.17 0.67 5.5 4352 96500

Ico_engine_alpha.png

Engines

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

IV Wright Continental R-975C1 400 20 516 11000
V Wright Continental R-975C4 460 20 550 13900
VI Ford GAA early 500 20 708 29000

Ico_suspension_alpha.png

Suspensions

Tier Suspension Load Limit
(т)
Traverse Speed
(gr/sec)
Rmin Weight
(kg)
Price
(Credits)

VI M12T48 27 18 0 11000 14600
VII M12T51 29.5 20 0 11000 19700

Ico_radio_alpha.png

Radios

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

IV SCR 510 325 80 1980
VI SCR 610 420 100 24600
X SCR 619 750 80 54000

Compatible Equipment

Low Noise Exhaust System Class 2 Medium Spall Liner Camouflage Net Class 2 Coated Optics Class 2 Experimental Optics Wear-Resistant Gun Laying Drive Improved Configuration Innovative Loading System Enhanced Gun Laying Drive Class 2 Modified Configuration Class 2 Improved Rotation Mechanism Class 2 Binocular Telescope Class 2 Gun Rammer Class 2 Turbocharger Class 2 

Compatible Consumables

Automatic Fire Extinguisher Natural Cover Optical Calibration Case of Cola Aim Tuning Experienced Firefighters 100-octane Gasoline 105-octane Gasoline Manual Fire Extinguisher Pre-Battle Maintenance Large First Aid Kit Large Repair Kit Duty Comes First Shell Organizer Orderly Ammo Rack Focus on Target Increased Focus Small First Aid Kit Small Repair Kit Gearbox Intricacy Steady Hand Combat Course 


Player Opinion

Pros and Cons

Pros:


  • Gun range: stock: 1350 m, top: 1400 m
  • Decent damage for a tier 7 artillery
  • Decent accuracy and gun arc
  • Best aim time for its tier


Cons:


  • Horrible traverse speed
  • Low vertical shell arc
  • Can only hold 20 shells, likely to run out of any shell types before end of game


Performance

This tank is quite a change from the M44. The reload and aim time are much slower and due to the narrow gun traverse you will be forced to move the hull more often than you would like. Considered a lackluster artillery piece before the nerf of 8.6, the M12 received further nerfs. Considered one of the worst artillery pieces in a tier full of bad artillery pieces, the M12 does not have much going for it. It is merely average in most important stats: Average accuracy, average damage, average reload, average mobility. It's only real advantage is its decent horizontal gun arc, but this is surpassed by the G.W. Panther and the Lorraine 155 50. However, it is worth noting that it has the best aiming time in its tier, making it truly shine when it can dedicate to counter-battery enemy artillery.


Early Research

  • Install Radio from previous SPG (M44)
  • Install Engine researched by T40 or M3 Lee
  • Research suspension first
  • Research gun next


Suggested Equipment


Artillery Shell Rammer Enhanced Gun Laying Drive Camouflage Net 


Gallery

Historical Info

M12 155mm self-propelled gun firing across the Moselle River in France, 1944.

The 155 mm Gun Motor Carriage M12 was a U.S. self-propelled gun developed during the Second World War. Only 100 were built; 60 in 1942 and a further 40 in 1943. It mounted a 155 mm gun M1917, M1917A1, or M1918 M1, depending upon availability: a weapon derived from the nearly identical French 155 mm GPF gun of World War I vintage. The M12 was built on the chassis of the M3 Lee tank (some sources claim that later M12 used the M4 Sherman chassis, but this might be a confusion with the M12's use of "Sherman-style" bogie trucks with trailing idlers). It had an armored driver's compartment, but the gun crew were located in an open topped area at the back of the vehicle. An earth spade (similar to a bulldozer blade) at the rear was employed to absorb recoil. This layout, a large gun mounted in an open mount at the rear with a spade, was the pattern adopted for many years by other heavy self-propelled artillery. This tank was also used to destroy small fortifications and pill boxes, and it was highly successful.

During 1943, the vehicles were used for training or put into storage. Before the invasion of France, 74 M12s were upgraded in preparation for combat operations. They were employed successfully throughout the campaign in NW-Europe. Although designed primarily for indirect fire, during assaults on heavy fortifications, the M12s were sometimes employed in a direct-fire role.

Limited storage space meant that only 10 projectiles and propellant charges could be carried on the vehicle. Given this, a similar vehicle, but without the gun, was produced as the Cargo Carrier M30. This was designed to transport the gun crew and additional ammunition. In operational conditions, the M12 and M30 would serve in pairs. The M30 was armed with a .50-caliber Browning M2 machine gun. It could carry 40 rounds of 155 mm ammunition.

The sole surviving M12 GMC is displayed at the Fort Sill museum [1]. It was stored at the United States Army Ordnance Museum in Aberdeen, Maryland, USA, before being transferred to Fort Sill in November 2010.


Historical Gallery

Sources and External Links

USA
Light Tanks IT1 Cunningham IIM2 Light Tank IIT1E6 IIT2 Light Tank IIT7 Combat Car IIIM22 Locust IIIM3 Stuart IIIMTLS-1G14 IVM5 Stuart VM24 Chaffee VM7 VIM24E2 Super Chaffee VIT21 VIT37 VIIT71 CMCD VIIT71 DA VIIIT92 VIIIM41 Walker Bulldog IXT49 XXM551 Sheridan
Medium Tanks IIT2 Medium Tank IIIConvert. Medium Tank T3 IIIM2 Medium Tank IVT6 Medium IVM3 Lee VM4 Improved VM4A2E4 Sherman VM4A1 Sherman VRam II VIM4A3E8 Fury VIM4A3E8 Thunderbolt VII VIM4A3E8 Sherman VIM4A3E2 Sherman Jumbo VIIT26E3 Eagle 7 VIIT20 VIIT23E3 VIIIT25 Pilot Number 1 VIIITL-1 LPC VIIIT42 VIIIASTRON Rex 105 mm VIIIAMBT VIIIM46 Patton KR VIIIM26 Pershing VIIIT26E4 SuperPershing VIIIT69 VIIIT95E2 IXM46 Patton XM48A5 Patton XM60 XT95E6
Heavy Tanks VT14 VT1 Heavy Tank VIPawlack Tank VIM6 VIIKing Tiger (Captured) VIIM-II-Y VIIT29 VIIIChrysler K VIIIChrysler K GF VIIIT26E5 VIIIT26E5 Patriot VIIIM54 Renegade VIIIT77 VIIIM-III-Y VIIIM-IV-Y VIIIM6A2E1 VIIIT32 VIIIT34 VIIIT34 B IXAE Phase I IXConcept 1B IXM-VI-Y IXM103 IXT54E1 XM-V-Y XT110E5 XT57 Heavy Tank
Tank Destroyers IIT3 HMC IIIT56 GMC IVM8A1 IVT40 VM10 Wolverine VT67 VIT78 VIM18 Hellcat VIM36 Jackson VIIM56 Scorpion VIIT28 Concept VIISuper Hellcat VIIT25/2 VIIT25 AT VIIITS-5 VIIIT28 VIIIT28 Prototype IXT30 IXT95 XT110E3 XT110E4
Self-Propelled Artillery IIT1 HMC IIIT18 HMC IIIM7 Priest IVT82 HMC IVM37 VM41 HMC VIM44 VIIM12 VIIIM40/M43 IXM53/M55 XT92 HMC
Self-Propelled Guns
USA IIT1 HMC IIIT18 HMC IIIM7 Priest IVT82 HMC IVM37 VM41 HMC VIM44 VIIM12 VIIIM40/M43 IXM53/M55 XT92 HMC
UK IILoyd Gun Carriage IIISexton II IIISexton I IVBirch Gun VBishop VIFV304 VIICrusader 5.5-in. SP VIIIFV207 IXFV3805 XConqueror Gun Carriage
Germany IIG.Pz. Mk. VI (e) IIISturmpanzer I Bison IIIWespe IVPz.Sfl. IVb IVSturmpanzer II VGrille VIHummel VIIG.W. Panther VIIIG.W. Tiger (P) IXG.W. Tiger XG.W. E 100
France IIRenault FT 75 BS IIILorraine 39L AM IVAMX 105 AM mle. 47 VAMX 13 105 AM mle. 50 V105 leFH18B2 VIAMX 13 F3 AM VIILorraine 155 mle. 50 VIIILorraine 155 mle. 51 IXBat.-Châtillon 155 55 XBat.-Châtillon 155 58
USSR IISU-18 IIISU-26 IVSU-5 VSU-122A VISU-8 VIIS-51 VIISU-14-1 VIIISU-14-2 IX212A XObject 261
China
Japan
Czechoslovakia
Sweden
Italy
Poland
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