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M40/M43

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M40/M43

AnnoA37_M40M43.png
Battle Tier
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Overview
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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.
]
2,700,000  Credits Cost
400400 HP Hit Points
36.69/3737.17/39.5 t Weight Limit
Crew
  1. Commander
  2. Driver
  3. Gunner
  4. Radio Operator
  5. Loader
  6. Loader
Mobility
400500 hp Engine Power
38.6/10 km/h Speed Limit
2022 deg/s Traverse
10.913.45 hp/t Power/Wt Ratio
YesYes Pivot
Armor
108/12.7/12.7 mm Hull Armor
Armament







{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||



{{#ifeq:|ARMOR_PIERCING||


HE/HE







{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||



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HE/HE
Shells




















1120/5200




















1870/8000
Shell Cost
700/700/1050/1050/ HP Damage
39/39/52/52/ mm Penetration



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1.94 r/m 

Standard Gun

Reload Times
Nominal: 31 s
50% Crew: 38.4 s
75% Crew: 33.53 s
100% Crew: 29.72 s
Rammer: 26.75 s
Vents: 29.07 s
Both: 26.16 s
Both and BiA: 25.59 s
Both and Max Crew %: 24.53 s

See Crew, Consumables, or Equipment for more information.



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1.3 r/m 

Standard Gun

Reload Times
Nominal: 46 s
50% Crew: 56.98 s
75% Crew: 49.76 s
100% Crew: 44.11 s
Rammer: 39.7 s
Vents: 43.14 s
Both: 38.82 s
Both and BiA: 37.98 s
Both and Max Crew %: 36.41 s

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






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2359

Standard Gun

Using Shell Type 1 (700 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 2359
50% Crew: 1904
75% Crew: 2184
100% Crew: 2457
100% Crew
Vents: 2513
Rammer: 2730
Both: 2793
Both and BiA: 2856
Both and Max Crew %: 2975

Advantageous Damage Per Minute
First-shot DPM: 3059
50% Crew: 2604
75% Crew: 2884
100% Crew: 3157
100% Crew
Rammer: 3430
Vents: 3213
Both: 3493
Both and BiA: 3556
Both and Max Crew %: 3675

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (700 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 2359
50% Crew: 1904
75% Crew: 2184
100% Crew: 2457
100% Crew
Vents: 2513
Rammer: 2730
Both: 2793
Both and BiA: 2856
Both and Max Crew %: 2975

Advantageous Damage Per Minute
First-shot DPM: 3059
50% Crew: 2604
75% Crew: 2884
100% Crew: 3157
100% Crew
Rammer: 3430
Vents: 3213
Both: 3493
Both and BiA: 3556
Both and Max Crew %: 3675

See here, here, or here for more information.






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1365

Standard Gun

Using Shell Type 1 (1050 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1365
50% Crew: 1102.5
75% Crew: 1260
100% Crew: 1428
100% Crew
Vents: 1459.5
Rammer: 1585.5
Both: 1627.5
Both and BiA: 1659
Both and Max Crew %: 1732.5

Advantageous Damage Per Minute
First-shot DPM: 2415
50% Crew: 2152.5
75% Crew: 2310
100% Crew: 2478
100% Crew
Rammer: 2635.5
Vents: 2509.5
Both: 2677.5
Both and BiA: 2709
Both and Max Crew %: 2782.5

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (1050 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 1365
50% Crew: 1102.5
75% Crew: 1260
100% Crew: 1428
100% Crew
Vents: 1459.5
Rammer: 1585.5
Both: 1627.5
Both and BiA: 1659
Both and Max Crew %: 1732.5

Advantageous Damage Per Minute
First-shot DPM: 2415
50% Crew: 2152.5
75% Crew: 2310
100% Crew: 2478
100% Crew
Rammer: 2635.5
Vents: 2509.5
Both: 2677.5
Both and BiA: 2709
Both and Max Crew %: 2782.5

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


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0.65 m 

With 50% Crew: 0.805 m
With 75% Crew: 0.703 m
With 100% Crew: 0.623 m
With BiA: 0.61 m
With BiA and Vents: 0.596 m
Maximum possible: 0.572 m

For more details, see Crew


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0.77 m 

With 50% Crew: 0.954 m
With 75% Crew: 0.833 m
With 100% Crew: 0.738 m
With BiA: 0.722 m
With BiA and Vents: 0.706 m
Maximum possible: 0.677 m

For more details, see Crew
Accuracy


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4.6 s 

With 50% Crew: 5.698 s
With 75% Crew: 4.976 s
With 100% Crew: 4.411 s
With GLD: 4.01 s
With BiA: 4.313 s
With BiA and Vents: 4.22 s
With both and GLD: 3.836 s
Maximum possible: 3.677 s

For more details, see Crew or Equipment


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5.3 s 

With 50% Crew: 6.566 s
With 75% Crew: 5.733 s
With 100% Crew: 5.082 s
With GLD: 4.62 s
With BiA: 4.97 s
With BiA and Vents: 4.862 s
With both and GLD: 4.42 s
Maximum possible: 4.237 s

For more details, see Crew or Equipment
Aim time
1010 deg/s Gun Traverse Speed
36° Gun Arc
-5°/+55°-5°/+55° Elevation Arc
3016 rounds Ammo Capacity
General
2020 % Chance of Fire






290 m 

With 50% Crew: 227.8 m
With 75% Crew: 259 m
With 100% Crew: 290 m
With Recon and Situational Awareness: 304.7 m
With Coated Optics: 319 m
With Binocular Telescope: 362.5 m
Maximum possible: 415.2 m

For more details, see Skills or Equipment






290 m 

With 50% Crew: 227.8 m
With 75% Crew: 259 m
With 100% Crew: 290 m
With Recon and Situational Awareness: 304.7 m
With Coated Optics: 319 m
With Binocular Telescope: 362.5 m
Maximum possible: 415.2 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
M40/M43

Additional Statistics
(Top Configuration)

Camouflage

  • Stationary: 10.57%
  • When Moving: 5.43%
  • When Firing: 0.91%


Terrain Resistance

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


Dispersion Change Values

  • Turret Contribution
  • Rotation: 0.61
  • Shot Recoil: 5.75
  • Suspension Contribution
  • Acceleration: 0.36
  • Turning: 0.36


With 100% Crew

VIII

AnnoA37_M40M43.png

2700000

The M40/M43 is an American tier 8 self-propelled gun.

Development started in the spring of 1944 due to a shortage of M1918 guns for the M12. The vehicle was based on the M4 Sherman and featured a HVSS-type suspension. The design allowed the 155-mm M1 gun and 203-mm M1 howitzer to be interchangeable (an SPG with the latter was designated the M43). The vehicle first saw service during Operation Zebra. A total of 418 M40 and 48 M43 vehicles were manufactured (another 24 M40s were reequipped).

The M40/M43 SPG was built on a widened and lengthened M4A3 medium tank chassis. The vehicle is designated as the M40 Gun Motor Carriage in a version that mounts the 155mm M1A1 "Long Tom" gun. The version that mounts the 8-inch (203mm) Howitzer is designated the M43 Howitzer Motor Carriage.

The M40/M43 leads to the M53/M55.

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)

VII 155 mm Gun M1A1 39/39 700/700 1.94 0.65 4.6 4352 96500
VIII 8-inch Howitzer M1 52/52 1050/1050 1.3 0.77 5.3 4645 150000

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
(гр/сек)
Rmin Weight
(kg)
Price
(Credits)

VII M40 37 20 0 15000 19070
VIII M43 39.5 22 0 15000 32000

Ico_radio_alpha.png

Radios

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

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


Compatible Equipment

Medium Spall Liner Camouflage Net Fill Tanks with CO2 Coated Optics Experimental Optics Wear-Resistant Gun Laying Drive Innovative Loading System Extended Spare Parts Kit Enhanced Gun Laying Drive Enhanced Coil Springs Class 3 Large-Caliber Artillery-Shell Rammer Binocular Telescope Toolbox "Wet" Ammo Rack 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 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 Pre-Battle Maintenance Combat Course 


Player Opinion

Pros and Cons

Pros:


  • Gun range: stock: 1400 m, top: 1330 m
  • Relatively fast and mobile
  • Good horizontal gun arc
  • Good damage for its tier


Cons:


  • Mediocre accuracy and slow aim time (can be mitigated with a strong crew and premium food consumable)
  • Slow RoF
  • Low Camouflage Rating
  • Unreliable AP round on upgraded gun
  • Low vertical shell arc


Performance

The M40/M43 has excellent mobility compared to the other hard hitters in tier 8, G.W. Tiger P. and SU-14-2. It is on the higher end for shell damage in its tier, with higher shell damage than the Lorraine 155 51 and FV207, tied with the SU-14-2 and only outclassed by the G.W. Tiger P. However, it has lower mobility than the Lorraine 155 51 and FV207. Due to its high damage combined with adequate accuracy, reload, and good mobility when fully kitted out, the M40/43 is arguably the best tier 8 artillery piece, and thus sees Clan Wars use during events with a tier 8 cap. Brothers in Arms and Snap Shot are highly recommended crew skills to train. Also worth mentioning is the lowish 241mm penetration of the AP round, making it unreliable at best, and only worthwhile to use if you intend to troll people, though if you choose to use it, expect to miss many shots and bounce even more.


Early Research

  • Both upgrade engines and both upgrade radios carry over from the M12 if researched there.
  • The suspension upgrade is necessary to handle the weight of the top engine and gun.
  • Research the 8 in howitzer ASAP
  • Not necessarily tank research, but train "Brothers in Arms" and "Snap Shot" on your crew. these skills greatly help this artillery piece.


Suggested Equipment


Tank Gun Rammer Enhanced Gun Laying Drive Camouflage Net 


Gallery

Historical Info

M40 in the US Army Ordnance Museum

The 155 mm Gun Motor Carriage M40 was a US self-propelled artillery vehicle built on a widened and lengthened Medium Tank M4A3 chassis, but with a Continental engine and HVSS (Horizontal Volute Spring Suspension) that was introduced at the end of the Second World War. Equipped with a 155 mm M2 gun, it was designed to replace the earlier M12 Gun Motor Carriage. Its prototype designation was the T83, but this was changed to the M40 in March 1945.

A single pilot vehicle was used in the European Theatre in 1945 by the 991st Field Artillery Battalion, along with a related 8-inch Howitzer Motor Carriage T89, which was sometimes also equipped with a 155 mm barrel.[1] From there, it was deployed during the Korean War.

After World War II, the M40 was used by the British Army, who designated it the 155mm SP M40.


A version on the same chassis mounted an 8-inch (203 mm) howitzer and was designated the M43 Howitzer Motor Carriage. It was standardized in August 1945, 48 were built. The M43 saw action in the Korean War.

Variants

The Army planned to use the same T38 chassis for a family of SP artillery:

  • Cargo Carrier T30- a few built before cancellation in December 1944 to make more chassis' available for GMCs.
  • 8 inch Howitzer Motor Carriage M43- 8 in (203 mm) HMC, standardized August 1945, 48 were built.


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 IVM5 Stuart VM24 Chaffee VM7 VIT21 VIT37 VIIT71 CMCD VIIT71 DA VIIIM41 Walker Bulldog IXT49 XXM551 Sheridan
Medium Tanks IIT2 Medium Tank IIIM2 Medium Tank IVM3 Lee VM4 Improved VM4A2E4 Sherman VM4 Sherman VRam II VIM4A3E8 Fury VIM4A3E8 Thunderbolt VII VIM4A3E8 Sherman VIM4A3E2 Sherman Jumbo VIIT20 VIIT23E3 VIIIT25 Pilot Number 1 VIIIM46 Patton KR VIIIM26 Pershing VIIIT26E4 SuperPershing VIIIT69 VIIIT95E2 IXM46 Patton IXT54E1 XM48A5 Patton XM60 XT95E6
Heavy Tanks VT14 VT1 Heavy Tank VIM6 VIIT29 VIIIT26E5 VIIIM6A2E1 VIIIT32 VIIIT34 VIIIT34 B IXM103 XT110E5 XT57 Heavy Tank
Tank Destroyers IIT3 HMC IIIT56 GMC IVM8A1 IVT40 VM10 Wolverine VT67 VIM18 Hellcat VIM36 Jackson VIIM56 Scorpion VIIT28 Concept VIIT25/2 VIIT25 AT 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
Poland


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