Difference between revisions of "M4 (WT Mobile)"
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== History == | == History == | ||
<!-- ''Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --> | <!-- ''Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --> | ||
− | + | ||
+ | The Battle of France in 1940 proved to America that their current tank arsenal would not be able to withstand a German assault. The only tanks in their inventory at that time was the [[M2A4|M2 light tank]] and the [[M2|M2 medium tank]], both are inadequate against the German [[Pz.III F|Panzer IIIs]] and the [[Pz.IV F1|Panzer IVs]]. The US Army, in response, ordered for a tank armed with a 75 mm gun. While a 75 mm gun was available for use, a turret able to mount the gun was not. So while the turret and tank design underwent development, the 75 mm would be mounted on the stopgap [[M3 Lee|M3 Lee]] tank in a sponson mount. This interim design put the 75 mm on a lower and limited traverse mount that restricted its firing angle, but it did give the Western Allies a tank with the gun, so it was issued by the thousands until a better design could be produced. | ||
+ | |||
+ | During the M3 medium's development, the designs of the 75 mm armed vehicle were being drawn up and submitted by the Ordnance Department. Specifications on the tank design were strict in order to maximize logistical support. Restrictions were made on the tank's height, width, and weight in order to make it able to be transported over bridges, roads, railroads, and on naval ships. These specifications would help the Army by making the tank be very flexible on strategic, logistical, and tactical grounds. On April 1941, the Armored Force Board chose the simplest of the designs, which was a redesigned M3 hull and chassis with a turret mounting the 75 mm gun designated the ''T6'', completed in September 1941. This tank would then designated the '''Medium Tank M4''' in American service. The tank would eventually become the most used Allied tank during World War II as it was lent out by the thousands in the Lend-Lease program to the Allied countries. The British designated the M4 the "[[Sherman II|Sherman]]", which coined into the tank's name '''M4 Sherman''' that it would be known as in history. The production for the Shermans began on October 1941 and would continue to be produced until the end of the war in 1945 with around 50,000 units produced, making it the second most-produced tank in World War II before the [[T-34 (1942)|T-34 tank]]. | ||
+ | |||
+ | === Design === | ||
+ | Many variants of the Shermans were produced, but they all followed a similar layout. The driver and bow gunner sat in the front driving compartment, the fighting compartment in the middle housed the turret its three crew member, and in the back was the engine compartment. The Sherman used many features present in previous American tank designs, the vertical volute suspension system (VVSS) and radial engine from the [[M2A4|M2 Light Tanks]], and the sloping armour of the [[M2|M2 Medium Tanks]]. This became a contributing factor on the Sherman's reliability on the field, as most of the design flaws were ironed out with the previous tank designs. The tank-mounted the 75 mm M3 gun, giving the tank very good AP and HE capabilities. The Sherman's turret traverse speed was very fast, able to traverse a full 360 degrees in only 15 seconds, which is considerably faster than the traverse speed on most German tanks. Another unique feature on the Sherman was the installation of a gyroscopic stabilizer on the gun and sight, making the Sherman one of the first produced tanks to incorporate those features. While the stabilization was only done for the vertical plane, it kept the gun stable enough to be able to shoot on the move effectively, with a study showing a 70 % hit probability on an enemy 300 to 1,200 yards away when moving at a speed of 15 mph. However, this feature was controversial among the crew and experiences with it vary. | ||
+ | |||
+ | The '''M4 Sherman''' model ran on a gasoline Continental R975 radial engine and was one of the first models of the Sherman developed. The early M4 Sherman featured the M38 telescopic sight in the M4 periscope with no zoom, but experience in North Africa and recommendations from the British changed the sight into the M55 telescopic sight integrated into the gun mantlet.<ref name="ZalogaArmorT1">Zaloga Steven. ''Armored Thunderbolt: The U.S. Army Sherman in World War II'' Stackpole Books, 2008, "Baptism Of Fire"</ref> This change in optics required appliqué armour to be added at the turret area in front of the gunner since the modification left the area weaker than the overall turret. This problem would be fixed in later-production models of the M4 Sherman. The tank's hull was welded, with the front armour plate placed on a 56-degree sloping angle. An early design defect with the design was the protruding armoured hatches for the driver and assistant driver. These protrusions create "shot traps" as they were in a near vertical position that gave less protection on the front armour than the sloping areas. This was fixed on later models as well. Up to 6,748 M4A1s were produced from July 1942 to January 1944, out of the 49,234 total Sherman units produced in the war. | ||
+ | |||
+ | ===Combat usage=== | ||
+ | ====European Theater==== | ||
+ | The Shermans first saw combat in the North African Campaign in the Second Battle of El Alamein on October 1942 in the hands of the British. It was much quicker to reinforce the British armoured divisions with the more than 300 Shermans sent to North Africa than it was to create new American ones. It proved much better than the German [[Pz.III F|Panzer IIIs]] and [[Pz.IV F1|Panzer IVs]], able to eliminate them at distances more than 2,000 yards away. The Americans received their first Shermans in the next month in Operation Torch. However better the Shermans were to the German tanks at the time, the Allied armoured units still suffered casualties against the German tanks and anti-tank guns, most notably in the Battle of Kasserine Pass. In Italy, the Shermans proved much more mobile than the German Panzers, able to travel cross-country on the hilly terrain with ease. However, it was at this stage that the Sherman's shortcoming began to take face in the advent of the newer German tanks, the [[Tiger H1|Tiger Is]] and [[Panther D|Panthers]]. These two tanks featured armour that proved impenetrable when fired at the front, and with guns that could take out the Shermans from farther than the Sherman's effective combat range. The Shermans have to hit the side of these tanks for penetration and at ranges that were considered suicidal. Although programs were initiated to [[M4A1 (76) W|up-gun the Sherman with a 76 mm gun]], American leaders determine that the Panther and Tigers would not be produced in large quantities and were not as great as a threat as these two vehicles could still be destroyed by the 75 mm gun and standard anti-tank equipment. | ||
+ | |||
+ | During the invasion of France, it was clear that the Sherman's current build with a 75 mm gun was no longer going to cut it against the German armoured forces. While the Sherman was adequate against what little Panzer III and IVs the Germans have left and against infantry and fortifications with the 75 mm gun, the Panthers and Tigers were in much large quantity than expected, and proved better in armour and firepower to the Shermans. Though in the bocage country of France, the Allies lost more tanks to hidden anti-tank guns and infantry weapons than to tanks. Despite these losses, the mass production of M4 Sherman back in the United States ensured that enough tanks were available for the Allied Forces as they spearhead through France, plus the lack of any other capable tanks meant they had to use the Shermans for the time being. The large quantities of Shermans produced during the war gave the Allied armoured units a major advantage of being fully equipped as the German panzer divisions were rarely in full strength, with some US infantry divisions having more tracked vehicles than some of the panzer divisions. Due to the high attrition rates, tank crews sometimes add [[Add-on Armor|improvised armour]] onto their Shermans in the form of sandbags and logs in hopes of increased survival, but these were determined to be ineffective from evaluations. A more effective method was to have metal armour welded on in improvisation, and an official project was made for such "assault tanks" that ended with the [[M4A3E2|M4A3E2 "Jumbos"]] with 254 made for the fighting in Europe. The Allies continued to use 75 mm Shermans until the Battle of the Bulge in Winter 1944, when the commanders request only 76 mm Shermans to be brought into Europe as the battle showed the intense armour disparity with the German's large numbers of [[Panther G|Panthers]] and [[Tiger II (H)|Tiger II tanks]]. While new units arriving in Europe were armed exclusively with 76 mm armed-Shermans, the veteran units kept the 75 mm Shermans, to which it continued to do well against softer targets with little threat from German armour due to their declining numbers. | ||
+ | |||
+ | ====Pacific Theater==== | ||
+ | The M4 Sherman's importance in the Pacific theatre was less than that of the European theatre due to the different tactical doctrine established from the amphibious nature of combat. Only about 20 tank battalions fielded by the US Army were sent to support the Pacific theatre of operations, compared to the total 16 armoured divisions and 70 tank battalions they have in service. The low priority in tanks was due to the following reasons. Firstly, the jungle terrain on most of the islands fought on was unsuitable for the deployment of large-scale armoured units, relegating armour support to light tanks such as the [[M3 Stuart|M3 Stuarts]]. Secondly, the Japanese forces' armoured units were rather inferior to the American tank forces by 1943. While the Japanese [[Ha-Go|Type 95 Ha-Go]] tank was comparable to the [[M2A4|M2A4 Light Tank]], the Shermans out gun these tanks by a large margin. Such a large margin that the tank crew prefer to use high-explosive shots against the Japanese tank than regular armour-piercing as the AP rounds would penetrate straight through without causing much damage in the interior of the tank. The Japanese developed the [[Chi-Nu|Type 3 Chi-Nu]] and the [[Chi-To|Type 4 Chi-To]] to fight back the Shermans, but these two never saw combat as they were kept at the Japanese homeland for the defence against the Allied invasion. | ||
+ | |||
+ | The Shermans, when deployed, were superior to most of the Japanese anti-tank equipment and often were essential to some of the Marines advances on some of the island assaults. In 1945, the equipping of flamethrower Shermans known as ''M4A3R3'', nicknamed "Zippos", were a significant boost to the infantry's firepower in having a very long range of fire compared to the standard infantry-modelled flamethrowers with the benefit of being in an armoured vehicle. The Japanese solution against the Shermans, other than with their 47 mm anti-tank guns, were often suicidal tactics ranging from placing satchel charges right onto the tank, using pole-mounted anti-tank mines to reach and destroy the tank or even simply throwing oneself underneath a tank with mine or other explosive and triggering it manually. | ||
+ | |||
+ | ==== Lend-Lease ==== | ||
+ | The Sherman tank was given out in large numbers to American Allies during World War II under the Lend-Lease policy. While America retained about 20,361 Shermans in the Army and Marine Corps, 17,184 went to Britain (about 34% of Shermans produced and 78% of Shermans given out) and the Soviet Union obtained 4,102 Shermans.<ref name="ZalogaArmorT2">Zaloga Steven. ''Armored Thunderbolt: The U.S. Army Sherman in World War II'' Stackpole Books, 2008, "The British Sherman"</ref> China obtained 812 Shermans, Brazil with 53, and New Zealand and Australia for 153 Shermans total. Other countries using the Shermans were Poland, Free France, and Czechoslovakia. The British deployed the Sherman among their armoured squadrons in such a large number to become the standard tank of their armoured forces. The increased threat of German tanks in the European theatre also provoked the British to up-gun the M4 Sherman with a more capable gun, resulting in the [[Sherman Firefly|Firefly]]. | ||
+ | |||
+ | ==== Post-War ==== | ||
+ | After the war, the Shermans continued serving America and its allies as the [[M4A3 (76) W|M4A3E8]] with a new suspension and the 76 mm gun. The [[M26|M26 Pershing]] that was introduced late in World War II was phased out for the Shermans due to its unreliability, and the Sherman stayed until the [[M46|M46 Patton]] was introduced. After being phased out of American service, many other countries still used the Sherman as their main tank, mainly Israel where they up-gun the tank with the much powerful post-war French 75 mm and 105 mm gun as the M-50 and M-51 respectively (nicknamed "Super Shermans"). These proved successful as they were able to fight against the Soviet-supplied [[T-54 (1947)|T-54 tanks]] and [[T-34-85]]s in Middle East service, proving the Sherman as a successful and adaptable design for many years to come. | ||
+ | |||
+ | {{break}} | ||
+ | {{Navigation-Start|{{Annotation|Archive of the in-game description|An archive of the historical description of the vehicle that was presented in-game prior to Update 1.55 'Royal Armour'}}}} | ||
+ | {{Navigation-First-Simple-Line}} | ||
+ | The Americans did an excellent job recognizing the problems with the M3's main-calibre weaponry being mounted in a side sponson. Immediately after it began full-scale production, they began work on a new, more modern tank with a 75 mm cannon in a fully traversing turret. Its prototype, termed the T6, was ready for trials at the Aberdeen Proving Ground in September 1941. | ||
+ | |||
+ | The M4 was a medium tank boasting a welded hull, a cast turret, and the 350 hp Continental R-975, a gas-powered radial engine. Design of the M4 began in 1941, and by July 1942 it was ready for full-scale production. Between July 1942 and January 1944, 6,748 M4s rolled off the line. The tank's welded hull boosted its ammunition capacity in comparison with cast hulls by expanding its internal armoured capacity. The hull's front plate initially had viewing slits, though armour covers were welded over them and periscopes were added. The front part of the hull's gear compartment on older models consisted of three sections bolted together. Tanks had a narrow mantlet for the M34 artillery mount, while subsequent units employed a fully cast forward hull section and M34A1 artillery mount with a wide mantlet. The last batches, which were made beginning at the end of 1943, had the front of their hulls made from cast and rolled pieces. At the beginning of 1944 the frontal plate became one piece, moving the driver and gunner hatches to the top of the hull. The angled frontal armour went from 56° to 47° from vertical. | ||
+ | |||
+ | The Pressed Steel Car Company kicked off production of the first M4 tanks in July 1942. Four more companies were added later. | ||
+ | |||
+ | M4 tanks saw combat in Africa, Italy, the Western front, and the Pacific islands through 1945. | ||
+ | |||
+ | Shermans proved a strong option with good reliability and manoeuvrability in addition to armament and armour suiting its roll as a medium tank. | ||
+ | {{Navigation-End}} | ||
== Media == | == Media == |
Revision as of 03:24, 9 September 2023
Contents
Description
The Medium Tank M4 Sherman is a gift rank II American medium tank with a battle rating of 3.7 (AB/RB/SB). It was introduced during Update "La Royale" as a promotional reward for the release of War Thunder Mobile.
General info
Survivability and armour
Dedicated anti-tank guns such as the 75mm found on the Panzer IV Ausf. F2/G/H/J will easily go through the upper frontal plate. The two driver hatches provide weakspots as the armor is flat in these areas (enemies can easily exploit this weakness if presented with the full UFP).
Notable weakspots are the turret front/side/back, the double driver's hatches, and the entirety of the side armor. Avoid showing the side armor at all to enemies at all to improve the chances of surviving in battle.
Armour type:
Armour | Front (Slope angle) | Sides | Rear | Roof |
---|---|---|---|---|
Hull | 50.8 mm (56°) Front glacis
50.8 mm (12-56°) Transmission area 50.8 (13-20°) + 25.4 mm (35°) Protruding hatches |
38.1 mm | 38.1 mm (0-10°) Top
25.4 mm (33-64°) Bottom |
19.5 mm Sides
12.7 mm Engine deck and center |
Turret | 76.2-88.9 mm (4-67°) Turret front
50.8 + 88.9 mm Gun mantlet |
50.8 mm (0-68°) | 50.8 mm (2-66°) | 25.4 mm |
Cupola | 50.8 mm | 50.8 mm | 50.8 mm | 25.4 mm |
Notes:
- Suspension wheels are 15 mm thick, bogies are 10 mm thick, and tracks are 20 mm thick.
- Front armor has two protruding areas for driver and co-driver hatches. These are weak points as they present a flat armor surface.
- Belly armor is 12.7 mm thick.
Mobility
Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.
Game Mode | Max Speed (km/h) | Weight (tons) | Engine power (horsepower) | Power-to-weight ratio (hp/ton) | |||
---|---|---|---|---|---|---|---|
Forward | Reverse | Stock | Upgraded | Stock | Upgraded | ||
Arcade | 43 | 6 | 30.6 | 620 | 763 | 20.26 | 24.93 |
Realistic | 39 | 6 | 354 | 400 | 11.57 | 13.07 |
Modifications and economy
Armaments
Main armament
75 mm M3 | Turret rotation speed (°/s) | Reloading rate (seconds) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mode | Capacity | Vertical | Horizontal | Stabilizer | Stock | Upgraded | Full | Expert | Aced | Stock | Full | Expert | Aced |
Arcade | 97 | -10°/+25° | ±180° | Vertical | 22.8 | 31.6 | 38.4 | 42.5 | 45.2 | 6.50 | 5.75 | 5.30 | 5.00 |
Realistic | 14.3 | 16.8 | 20.4 | 22.6 | 24.0 |
The 75mm should suit all tankers well due to its good penetration at 3.7, high explosive filler on the M61 shot, and a quick reload. The gun is also equipped with a stabilizer which helps to assist with firing on the move and is well suited to close-quarters combat in urban maps.
Ammunition
Penetration statistics | |||||||
---|---|---|---|---|---|---|---|
Ammunition | Type of warhead |
Penetration @ 0° Angle of Attack (mm) | |||||
10 m | 100 m | 500 m | 1,000 m | 1,500 m | 2,000 m | ||
M72 shot | AP | 91 | 88 | 78 | 67 | 57 | 49 |
M48 shell | HE | 10 | 10 | 10 | 10 | 10 | 10 |
M61 shot | APCBC | 104 | 102 | 93 | 84 | 75 | 68 |
Shell details | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ammunition | Type of warhead |
Velocity (m/s) |
Projectile mass (kg) |
Fuse delay (m) |
Fuse sensitivity (mm) |
Explosive mass (TNT equivalent) (g) |
Ricochet | |||||
0% | 50% | 100% | ||||||||||
M72 shot | AP | 619 | 6.3 | - | - | - | 47° | 60° | 65° | |||
M48 shell | HE | 463 | 6.3 | 0.2 | 0.1 | 666 | 79° | 80° | 81° | |||
M61 shot | APCBC | 618 | 6.79 | 1.2 | 14 | 63.7 | 48° | 63° | 71° |
Smoke shell characteristics | ||||||
---|---|---|---|---|---|---|
Ammunition | Velocity (m/s) |
Projectile mass (kg) |
Screen radius (m) |
Screen deploy time (s) |
Screen hold time (s) |
Explosive mass (TNT equivalent) (g) |
M89 | 259 | 3 | 9 | 5 | 20 | 50 |
Ammo racks
Full ammo |
1st rack empty |
2nd rack empty |
3rd rack empty |
4th rack empty |
5th rack empty |
6th rack empty |
Visual discrepancy |
---|---|---|---|---|---|---|---|
97 | 91 (+6) | 88 (+9) | 86 (+11) | 78 (+19) | 63 (+34) | 46 (+51) | None |
Machine guns
12.7 mm M2HB | ||||
---|---|---|---|---|
Mount | Capacity (Belt) | Fire rate | Vertical | Horizontal |
Pintle | 600 (200) | 575 | -10°/+25° | ±60° |
The 12.7 M2 Browning is good at destroying lightly armored vehicles. Notable examples are the early Panzer II/III/IV models from the side, the Puma, and open top TDs or anti-air vehicles.
7.62 mm M1919A4 | ||||
---|---|---|---|---|
Mount | Capacity (Belt) | Fire rate | Vertical | Horizontal |
Coaxial | 3,000 (250) | 500 | - | - |
The 7.62mm doesn't suit much purpose as it is very poor for penetrating armor. Tankers can use it to ping enemies and destroy light obstacles (fences, bushes, etc.)
Usage in battles
Common enemy tanks:
KV-1s: Shoot the front part of the turret face with M61 and it should result in a kill. If this doesn't work, disable the gun breech by shooting the armor right above the gun barrel, destroy both tracks (12.7mm machine gun is capable of doing this), flank around and finish with a shot to the side armor. Beware of the KV-1E and the KV-1 ZiS-5 which have additional applique armor on the turret and hull.
KV-2s: Shoot the flat part on the front of the turret. You can also flank around and put a round in the side armor for an easy kill.
T-34 (1941/1942/1943): Shoot the turret face on either side of the gun, preferably with M61 for a one-shot kill. Avoid shooting the UFP as the round is likely to bounce/ricochet. The turret is the weakest area on a T-34 along with the sides. Be careful when engaging as T-34s with the 76mm F-34 or the long 57mm can easily penetrate you, even at surprising angles.
Panzer IVs (F2/G/H/J): Beware of the 75mm which can easily end the M4 due to its superb penetration. Aim for the turret or anywhere on the hull and you should get a kill. There may be applique armor on the turret faces and the UFP which you can shoot but avoid hitting the tracks at an angle. In this case aim for the sloped armor right below the UFP and above the LFP/transmission.
StuG IIIs: Aim for the protruding driver's hatches on the left and right of the hull or flank and destroy from the side. The StuG mounts the same punchy gun on the Panzer IV G/H/J which can destroy you easily. Keep in mind that this is an tank without a turret (SPG) and you can easily disable it by destroying the transmission.
Dicker Max: This German SPG mounts a nasty 105mm that can easily send you back to the respawn screen. Shoot the gunner (aim for right side of the casemate) and then proceed to destroy rest of crew. If you load a HE round, shoot anywhere to kill as the Dicker Max is an open top vehicle.
Churchill I/III: A famous British heavy tank, this can prove even tougher than the KV-1 to kill because of the complex armor layout. Aim for the flat turret face only as you will be unable to consistently penetrate anywhere else. Make sure to shoot from very close ranges only.
The M4 Sherman is a good "do-it-all" medium tank with adequate armor, good firepower, and excellent mobility. At 3.7 it is able to take a few hits here and there but do not rely on the armor to save you in battle.
In combat, you can make use of the excellent -10° gun depression and position yourself in hull-down positions to take minimal damage from the enemy. For sniping, the gun should be adequate for most tanks but do not expect it to consistently penetrate an enemy frontally from over 500m unless the side is presented to you. Remember that you also have a vertical stabilizer that allows some flexibility with shots. However, at long range it is better to stop in place and then shoot for max accuracy.
You can also use the good top speed to flank around enemies and get easy kills. The explosive on the M61 shell will assist with clean snipes and with proper aim and ranging you should be getting kills relatively easily.
Brawling is doable but the armor will not stand up to precise shots from the enemy. Your stabilizer will assist with CQC and you usually will be able to get the first and more accurate shot off on the enemy tank. USSR rounds such as the BR-350A/B will easily end you if the round penetrates due to the high explosive filler. Remember to never expose your side armor.
Pros and cons
Pros:
- Excellent gun depression of -10°
- Gun is equipped a stabilizer; comes in useful for close combat and for firing on the move
- M61 shell has excellent explosive filler, if it penetrates anything its very likely to be a one-shot-kill.
- Applique armor plate protecting the gunner
- Adequate armor for 3.7 with good frontal armor, armor effectiveness increases over distance
- Good mobility, a trait shared with the Sherman tank family
- 12.7mm M2HB machine gun is good for eliminating lightly armored targets or open-tops and has good degree of traverse
Cons:
- Very tall profile, easily recognizable in battle and usually targeted because of weak armor
- Two driver's hatches provide easy weakspots for enemies to destroy the M4 from the front
- M61 shell struggles to penetrate angled armor (ex. T-34, angled KV-1s/Churchills, even another M4)
- Side armor is useless if presented at a flat angle to the enemy (flank); most vehicles in-game can kill the M4 with one shot from the side
- Gun can be slightly hard to aim over distance due to curved shell trajectory and low muzzle velocity
History
The Battle of France in 1940 proved to America that their current tank arsenal would not be able to withstand a German assault. The only tanks in their inventory at that time was the M2 light tank and the M2 medium tank, both are inadequate against the German Panzer IIIs and the Panzer IVs. The US Army, in response, ordered for a tank armed with a 75 mm gun. While a 75 mm gun was available for use, a turret able to mount the gun was not. So while the turret and tank design underwent development, the 75 mm would be mounted on the stopgap M3 Lee tank in a sponson mount. This interim design put the 75 mm on a lower and limited traverse mount that restricted its firing angle, but it did give the Western Allies a tank with the gun, so it was issued by the thousands until a better design could be produced.
During the M3 medium's development, the designs of the 75 mm armed vehicle were being drawn up and submitted by the Ordnance Department. Specifications on the tank design were strict in order to maximize logistical support. Restrictions were made on the tank's height, width, and weight in order to make it able to be transported over bridges, roads, railroads, and on naval ships. These specifications would help the Army by making the tank be very flexible on strategic, logistical, and tactical grounds. On April 1941, the Armored Force Board chose the simplest of the designs, which was a redesigned M3 hull and chassis with a turret mounting the 75 mm gun designated the T6, completed in September 1941. This tank would then designated the Medium Tank M4 in American service. The tank would eventually become the most used Allied tank during World War II as it was lent out by the thousands in the Lend-Lease program to the Allied countries. The British designated the M4 the "Sherman", which coined into the tank's name M4 Sherman that it would be known as in history. The production for the Shermans began on October 1941 and would continue to be produced until the end of the war in 1945 with around 50,000 units produced, making it the second most-produced tank in World War II before the T-34 tank.
Design
Many variants of the Shermans were produced, but they all followed a similar layout. The driver and bow gunner sat in the front driving compartment, the fighting compartment in the middle housed the turret its three crew member, and in the back was the engine compartment. The Sherman used many features present in previous American tank designs, the vertical volute suspension system (VVSS) and radial engine from the M2 Light Tanks, and the sloping armour of the M2 Medium Tanks. This became a contributing factor on the Sherman's reliability on the field, as most of the design flaws were ironed out with the previous tank designs. The tank-mounted the 75 mm M3 gun, giving the tank very good AP and HE capabilities. The Sherman's turret traverse speed was very fast, able to traverse a full 360 degrees in only 15 seconds, which is considerably faster than the traverse speed on most German tanks. Another unique feature on the Sherman was the installation of a gyroscopic stabilizer on the gun and sight, making the Sherman one of the first produced tanks to incorporate those features. While the stabilization was only done for the vertical plane, it kept the gun stable enough to be able to shoot on the move effectively, with a study showing a 70 % hit probability on an enemy 300 to 1,200 yards away when moving at a speed of 15 mph. However, this feature was controversial among the crew and experiences with it vary.
The M4 Sherman model ran on a gasoline Continental R975 radial engine and was one of the first models of the Sherman developed. The early M4 Sherman featured the M38 telescopic sight in the M4 periscope with no zoom, but experience in North Africa and recommendations from the British changed the sight into the M55 telescopic sight integrated into the gun mantlet.[1] This change in optics required appliqué armour to be added at the turret area in front of the gunner since the modification left the area weaker than the overall turret. This problem would be fixed in later-production models of the M4 Sherman. The tank's hull was welded, with the front armour plate placed on a 56-degree sloping angle. An early design defect with the design was the protruding armoured hatches for the driver and assistant driver. These protrusions create "shot traps" as they were in a near vertical position that gave less protection on the front armour than the sloping areas. This was fixed on later models as well. Up to 6,748 M4A1s were produced from July 1942 to January 1944, out of the 49,234 total Sherman units produced in the war.
Combat usage
European Theater
The Shermans first saw combat in the North African Campaign in the Second Battle of El Alamein on October 1942 in the hands of the British. It was much quicker to reinforce the British armoured divisions with the more than 300 Shermans sent to North Africa than it was to create new American ones. It proved much better than the German Panzer IIIs and Panzer IVs, able to eliminate them at distances more than 2,000 yards away. The Americans received their first Shermans in the next month in Operation Torch. However better the Shermans were to the German tanks at the time, the Allied armoured units still suffered casualties against the German tanks and anti-tank guns, most notably in the Battle of Kasserine Pass. In Italy, the Shermans proved much more mobile than the German Panzers, able to travel cross-country on the hilly terrain with ease. However, it was at this stage that the Sherman's shortcoming began to take face in the advent of the newer German tanks, the Tiger Is and Panthers. These two tanks featured armour that proved impenetrable when fired at the front, and with guns that could take out the Shermans from farther than the Sherman's effective combat range. The Shermans have to hit the side of these tanks for penetration and at ranges that were considered suicidal. Although programs were initiated to up-gun the Sherman with a 76 mm gun, American leaders determine that the Panther and Tigers would not be produced in large quantities and were not as great as a threat as these two vehicles could still be destroyed by the 75 mm gun and standard anti-tank equipment.
During the invasion of France, it was clear that the Sherman's current build with a 75 mm gun was no longer going to cut it against the German armoured forces. While the Sherman was adequate against what little Panzer III and IVs the Germans have left and against infantry and fortifications with the 75 mm gun, the Panthers and Tigers were in much large quantity than expected, and proved better in armour and firepower to the Shermans. Though in the bocage country of France, the Allies lost more tanks to hidden anti-tank guns and infantry weapons than to tanks. Despite these losses, the mass production of M4 Sherman back in the United States ensured that enough tanks were available for the Allied Forces as they spearhead through France, plus the lack of any other capable tanks meant they had to use the Shermans for the time being. The large quantities of Shermans produced during the war gave the Allied armoured units a major advantage of being fully equipped as the German panzer divisions were rarely in full strength, with some US infantry divisions having more tracked vehicles than some of the panzer divisions. Due to the high attrition rates, tank crews sometimes add improvised armour onto their Shermans in the form of sandbags and logs in hopes of increased survival, but these were determined to be ineffective from evaluations. A more effective method was to have metal armour welded on in improvisation, and an official project was made for such "assault tanks" that ended with the M4A3E2 "Jumbos" with 254 made for the fighting in Europe. The Allies continued to use 75 mm Shermans until the Battle of the Bulge in Winter 1944, when the commanders request only 76 mm Shermans to be brought into Europe as the battle showed the intense armour disparity with the German's large numbers of Panthers and Tiger II tanks. While new units arriving in Europe were armed exclusively with 76 mm armed-Shermans, the veteran units kept the 75 mm Shermans, to which it continued to do well against softer targets with little threat from German armour due to their declining numbers.
Pacific Theater
The M4 Sherman's importance in the Pacific theatre was less than that of the European theatre due to the different tactical doctrine established from the amphibious nature of combat. Only about 20 tank battalions fielded by the US Army were sent to support the Pacific theatre of operations, compared to the total 16 armoured divisions and 70 tank battalions they have in service. The low priority in tanks was due to the following reasons. Firstly, the jungle terrain on most of the islands fought on was unsuitable for the deployment of large-scale armoured units, relegating armour support to light tanks such as the M3 Stuarts. Secondly, the Japanese forces' armoured units were rather inferior to the American tank forces by 1943. While the Japanese Type 95 Ha-Go tank was comparable to the M2A4 Light Tank, the Shermans out gun these tanks by a large margin. Such a large margin that the tank crew prefer to use high-explosive shots against the Japanese tank than regular armour-piercing as the AP rounds would penetrate straight through without causing much damage in the interior of the tank. The Japanese developed the Type 3 Chi-Nu and the Type 4 Chi-To to fight back the Shermans, but these two never saw combat as they were kept at the Japanese homeland for the defence against the Allied invasion.
The Shermans, when deployed, were superior to most of the Japanese anti-tank equipment and often were essential to some of the Marines advances on some of the island assaults. In 1945, the equipping of flamethrower Shermans known as M4A3R3, nicknamed "Zippos", were a significant boost to the infantry's firepower in having a very long range of fire compared to the standard infantry-modelled flamethrowers with the benefit of being in an armoured vehicle. The Japanese solution against the Shermans, other than with their 47 mm anti-tank guns, were often suicidal tactics ranging from placing satchel charges right onto the tank, using pole-mounted anti-tank mines to reach and destroy the tank or even simply throwing oneself underneath a tank with mine or other explosive and triggering it manually.
Lend-Lease
The Sherman tank was given out in large numbers to American Allies during World War II under the Lend-Lease policy. While America retained about 20,361 Shermans in the Army and Marine Corps, 17,184 went to Britain (about 34% of Shermans produced and 78% of Shermans given out) and the Soviet Union obtained 4,102 Shermans.[2] China obtained 812 Shermans, Brazil with 53, and New Zealand and Australia for 153 Shermans total. Other countries using the Shermans were Poland, Free France, and Czechoslovakia. The British deployed the Sherman among their armoured squadrons in such a large number to become the standard tank of their armoured forces. The increased threat of German tanks in the European theatre also provoked the British to up-gun the M4 Sherman with a more capable gun, resulting in the Firefly.
Post-War
After the war, the Shermans continued serving America and its allies as the M4A3E8 with a new suspension and the 76 mm gun. The M26 Pershing that was introduced late in World War II was phased out for the Shermans due to its unreliability, and the Sherman stayed until the M46 Patton was introduced. After being phased out of American service, many other countries still used the Sherman as their main tank, mainly Israel where they up-gun the tank with the much powerful post-war French 75 mm and 105 mm gun as the M-50 and M-51 respectively (nicknamed "Super Shermans"). These proved successful as they were able to fight against the Soviet-supplied T-54 tanks and T-34-85s in Middle East service, proving the Sherman as a successful and adaptable design for many years to come.
Archive of the in-game description | |
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The Americans did an excellent job recognizing the problems with the M3's main-calibre weaponry being mounted in a side sponson. Immediately after it began full-scale production, they began work on a new, more modern tank with a 75 mm cannon in a fully traversing turret. Its prototype, termed the T6, was ready for trials at the Aberdeen Proving Ground in September 1941. The M4 was a medium tank boasting a welded hull, a cast turret, and the 350 hp Continental R-975, a gas-powered radial engine. Design of the M4 began in 1941, and by July 1942 it was ready for full-scale production. Between July 1942 and January 1944, 6,748 M4s rolled off the line. The tank's welded hull boosted its ammunition capacity in comparison with cast hulls by expanding its internal armoured capacity. The hull's front plate initially had viewing slits, though armour covers were welded over them and periscopes were added. The front part of the hull's gear compartment on older models consisted of three sections bolted together. Tanks had a narrow mantlet for the M34 artillery mount, while subsequent units employed a fully cast forward hull section and M34A1 artillery mount with a wide mantlet. The last batches, which were made beginning at the end of 1943, had the front of their hulls made from cast and rolled pieces. At the beginning of 1944 the frontal plate became one piece, moving the driver and gunner hatches to the top of the hull. The angled frontal armour went from 56° to 47° from vertical. The Pressed Steel Car Company kicked off production of the first M4 tanks in July 1942. Four more companies were added later. M4 tanks saw combat in Africa, Italy, the Western front, and the Pacific islands through 1945. Shermans proved a strong option with good reliability and manoeuvrability in addition to armament and armour suiting its roll as a medium tank. |
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USA medium tanks | |
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M2 | M2 |
M3 | M3 Lee · ▃Grant I |
M4 | M4 · Calliope · M4A1 · M4A1 (76) W · M4A2 · M4A2 (76) W · M4A3 (105) · M4A3 (76) W · M4/T26 |
M26 Pershing | T20 · T25 · M26 · M26 T99 · M26E1 |
M46/47/48 Patton | M46 · M46 "Tiger" · M47 · M48A1 · T54E1 · T54E2 |
M60 | M60 · M60A1 (AOS) · M60A1 RISE (P) · M60A2 · M60A3 TTS · M728 CEV · 120S |
MBT-70 | MBT-70 · XM803 |
M1 Abrams | XM1 (Chrysler) · XM1 (GM) |
M1 Abrams · M1 KVT · IPM1 | |
M1A1 · M1A1 HC · M1A1 Click-Bait | |
M1A2 Abrams · M1A2 SEP · M1A2 SEP V2 | |
Other | T95E1 |
Australia | M1A1 AIM |
Canada | M4A5 |
Israel | ▃Magach 3 (ERA) · ▃Merkava Mk.1 · ▃Merkava Mk.2B · ▃Merkava Mk.3D |
Turkey | M60 AMBT |