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M12

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M12 (Stock)

AnnoM12.png
Totals
1400000 Price
350 Hit Points
26.76 / 27 kgWeight
Crew
  1. Commander
Armor
50.8/19.1/19.1Hull Armor(front/sides/rear, mm)
19.1/0/0Turret Armor(front/sides/rear, mm)
Maneuver
400 h.p.Engine Power
38.6 km/hSpeed Limit
18 deg/secTraverse Speed
Firepower
950 Standard Shell Damage
85 mmStandard Shell Penetration
19 Time for Complete Loading
12 deg/secTurret Traverse Speed
Communication
370 mView Range
325 mSignal Range
VII
M12
1400000
The M12 was developed by the Rock Island Arsenal, with a total of 100 vehicles manufactured. American soldiers dubbed the vehicle King Kong. The M12 fought well in battles on the Siegfried Line.

It is not all that different from the M41. As is par for the American SPGs it has a slow hull traverse speed, but a respectable top speed and acceleration.

M12

Stock

Level Gun Weight (t) Average Penetration (mm) Rate of Fire Dispersion at 100 m Aiming Time
gun VI 155 mm Gun M1918M1 3953 85/90 950/950 3.16 0.76 7
Level Engine Weight (t) Engine Power (h.p.) Chance of Fire on Impact
engine IV Wright Continental R-975C1 516 400 20
Level Suspension Weight (t) Load Limit Traverse Speed (deg/s)
chassis VI M12T48 11000 27 18
Level Radio Weight (t) Signal Range (m)
radio IV SCR 510 0 325

M12A1

Speed

Level Gun Weight (t) Average Penetration (mm) Rate of Fire Dispersion at 100 m Aiming Time
gun VI 155 mm Gun M1918M1 3953 85/90 950/950 3.16 0.76 7
Level Engine Weight (t) Engine Power (h.p.) Chance of Fire on Impact
engine V Wright Continental R-975C4 550 460 20
Level Suspension Weight (t) Load Limit Traverse Speed (deg/s)
chassis VII M12T51 11000 29.5 20
Level Radio Weight (t) Signal Range (m)
radio VI SCR 610 0 420

M12A2

Attack

Level Gun Weight (t) Average Penetration (mm) Rate of Fire Dispersion at 100 m Aiming Time
gun VII 155 mm Gun M1A1 4352 88/90 1250/1250 2.47 0.72 7.5
Level Engine Weight (t) Engine Power (h.p.) Chance of Fire on Impact
engine VI Ford GAA early 708 500 20
Level Suspension Weight (t) Load Limit Traverse Speed (deg/s)
chassis VII M12T51 11000 29.5 20
Level Radio Weight (t) Signal Range (m)
radio X SCR 619 0 750

Compatible Equipment

Medium Spall Liner
Camouflage Net
Fill Tanks with CO2
Coated Optics
Enhanced Gun Laying Drive
Enhanced Vertical Coil Springs 2 Class
Medium-Caliber Artillery Shell Rammer
Binocular Telescope
Toolbox
"Wet" Ammo Rack Class 1

Compatible Consumables

Automatic Fire Extinguisher
Case of Cola
100-octane Gasoline
105-octane Gasoline
Manual Fire Extinguisher
Large First Aid Kit
Large Repair Kit
Small First Aid Kit
Small Repair Kit

Player Opinion

Pros and Cons

Pros:


  • Gun range: stock: 1350 m, top: 1400 m
  • Good damage
  • Good accuracy
  • Good gun arc


Cons:


  • Horrible traverse speed


Performance

After firing 500 shots with the tank's M1A1, you'll get the feeling that most of its damage comes from splash and so called 'lucky shots', and not so much from clean hits. Add low penetration value to the mix, and it becomes a rarity that you'll hit for more than 1.000 damage. Expect to do around half that (500ish). When aiming, the lack of traverse speed is compensated by the good horizontal gun arc, reducing your need to turn before shooting.


Early Research

  • install Radio from previous SPG (M41)
  • install Engine researched by T40 or M3 Lee
  • research suspension first
  • research gun next


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.

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-X IIT1E6-X1 IIT2 Light Tank IIT7 Combat Car IIIM22 Locust IIIM3 Stuart IIIMTLS-1G14 IVM5 Stuart VM24 Chaffee VIT21 VIT37 VIIM41 Walker Bulldog VIIT71 VIIIM41B Brazilian Bulldog VIIIT49
Medium Tanks IIT2 Medium Tank IIIM2 Medium Tank IVM3 Lee VM4A2E4 Sherman VM4A2E4 Ripper VM4 Sherman VM7 VRam II VIM4A3E8 Sherman VISherman Fury VIM4A3E2 Sherman Jumbo VIIT20 VIIT23E3 VIIIM26 Pershing VIIIT26E4 Super Pershing VIIIT26E4 Freedom VIIIT69 VIIIT95E2 IXM46 Patton IXT54E1 XM48A1 Patton
Heavy Tanks VT14 VT1 Heavy Tank VIM6 VIIT29 VIIIM6A2E1 VIIIT32 VIIIT34 IXM103 XT110E5 XT57 Heavy Tank
Tank Destroyers IIT18 IIIT82 IVM8A1 IVT40 VM10 Wolverine VT67 VIM18 Hellcat VIM36 Jackson VIIT25/2 VIIT25 AT VIIIT28 VIIIT28 Prototype IXT30 IXT95 XT110E3 XT110E4
Self-Propelled Artillery IIT57 IIIM7 Priest IIISexton I IVM37 VM41 VIM44 VIIM12 VIIIM40/M43 IXM53/M55 XT92
Self-Propelled Guns
USA IIT57 IIIM7 Priest IIISexton I IVM37 VM41 VIM44 VIIM12 VIIIM40/M43 IXM53/M55 XT92
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
ko:XBOX:M12