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[Client Values; Actual values in
|400400 HP Hit Points|
|36.69/3737.17/39.5 t Weight Limit|
- Radio Operator
|400500 hp Engine Power|
|38.6/10 km/h Speed Limit|
|2022 deg/s Traverse|
|10.913.45 hp/t Power/Wt Ratio|
|108/12.7/12.7 mm Hull Armor|
|700/700/1050/1050/ HP Damage|
|39/39/52/52/ mm Penetration|
|r/m 1.94 r/m 1.3 Rate of Fire|
▼1365 Damage Per Minute
With 50% Crew: 0.805 m
With 50% Crew: 0.954 m
|s 4.6 s 5.3 Aim time|
|1010 deg/s Gun Traverse Speed|
|36° Gun Arc|
|-5°/+55°-5°/+55° Elevation Arc|
|3016 rounds Ammo Capacity|
|2020 % Chance of Fire|
|m 290 m 290 View Range|
|m 325 m 750 Signal Range|
- Stationary: 10.57%
- When Moving: 5.43%
- When Firing: 0.91%
- 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
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
|Rate of fire
|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|
|Chance of Fire on Impact
|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|
Pros and Cons
- Gun range: stock: 1400 m, top: 1330 m
- Relatively fast and mobile
- Good horizontal gun arc
- Good damage for its tier
- 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
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.
- 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.
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. 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.
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.
Sources and External Links
- M40 Gun Motor Carriage and M43 Howitzer Motor Carriage Photos & history.
|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|