M4A3 (105)

M4A3 (105)

M10 GMC

M4A3 (105)

M10 GMC

USA

II Rank

Battle rating:

AB	RB	SB
3.0	3.0	3.0

Class:

Medium tank

Research:9 200

Purchase:16 000

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This page is about the American medium tank M4A3 (105). For similar vehicles, see M4A3 (76) W and M4A3 (76) W (Japan).

Description

The Medium Tank M4A3 (105) HVSS Sherman is a rank II American medium tank with a battle rating of 3.0 (AB/RB/SB). It was one of the first American tanks to be released with the American ground tree in Update 1.45 "Steel Generals". Armed with a 105 mm howitzer instead of the standard 75 mm cannon, the howitzer grants the Sherman a much more powerful high-explosive shell to use against lightly-armoured enemies. When the HEAT round is unlocked for the cannon, its firepower against more heavily armoured vehicle increases substantially.

General info

Survivability and armour

Armour type:

• Rolled homogeneous armour (Hull, Turret roof)
• Cast homogeneous armour (Turret, Transmission area)

Armour	Front (Slope angle)	Sides	Rear	Roof
Hull	63.5 mm (47°) Front glacis 63.5-107.9 mm (5-56°) Transmission area	38.1 mm	38.1 mm (22°) Top 38.1 mm (13-44°) Bottom	19.5 mm
Turret	76.2 mm (3-67°) Turret front 88.9 mm (3-86°) Gun mantlet	50.8 mm (2-69°)	50.8 mm (2-66°)	25.4 mm
Armour	Sides	Roof
Cupola	63.5 mm	25.4 mm

Notes:

• Suspension wheels are 15 mm thick, bogies are 10 mm thick, and tracks are 20 mm thick.
• Lower part of the hull ("beak") is 107.9 mm thick
• A small patch on the turret front right side is thinner (50.8 mm) than the rest (76.2 mm).

The M4A3 (105) has certain flaws that can be exploited quite well. First of all, the howitzer armament means that the shell travels in a low-velocity, meaning the M4A3 (105) will be unlikely to engage at a long distance. Another is the fact that the M4A3 (105)'s gun has a long reload and a slow traverse speed, meaning it is also not very good in a close-range encounter. Despite these flaws, the M4A3 (105) is a formidable foe with its armament. The HE and HEAT shell the 105 mm can dish out has a real possibility to knock out friendly crew and teammates, if not absolutely destroying light tanks. These high-explosives can also break tracks easily, causing the player tank to be immobilized and exposed not only to the M4A3 (105), but to the other enemies as well, and the M4A3 (105) will most likely not be alone.

To engage the M4A3 (105), try not to engage its frontal armour if in a tank with BR lower than 3.7. It's frontal armour, despite what most will say about the Sherman's armour, is quite formidable and can deflect most incoming enemy round from light and medium tanks. This is why it is recommended to bring high-velocity guns like the 3-inch on the M10 or the long 75 mm on the later Panzer IV. If it can't be engaged from the front, manoeuvre to its side and rear armour, as these armour plates are extremely vulnerable to even 37 mm guns. When manoeuvring around the M4A3 (105), try not to expose the tank for a prolonged time and move faster than the M4A3 (105)'s slow turret traverse rate (though beware that the M4A3 can compensate this slow turn by turning the entire body). If fast enough, a tank could also move past the 105 mm low-velocity shell and mess up the enemy's lead. This will eventually lead to a good shot on the M4A3's weak points. Another simpler and less mobile way is to lie in wait in a tank destroyer such as the StuG III for the M4A3 to move right into the TD's line of fire, giving a clean shot to a vulnerable armour part. A good shot on a general part of the hull can ignite one of the many ammo racks strewn around the interior.

Mobility

Game Mode	Max Speed (km/h)		Weight (tons)	Engine power (horsepower)		Power-to-weight ratio (hp/ton)
	Forward	Reverse		Stock	Upgraded	Stock	Upgraded
Arcade	47	7	31.7	775	954	24.45	30.09
Realistic	42	6		442	500	13.94	15.77

Armaments

Main armament

105 mm M4					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	66	-10°/+35°	±180°	N/A	5.71	7.91	9.60	10.62	11.29	13.0	11.5	10.6	10.0
Realistic					3.57	4.20	5.10	5.64	6.00

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration in mm @ 90°
		10m	100m	500m	1000m	1500m	2000m
M1 shell	HE	26	26	26	26	26	26
M67 shot	HEAT	130	130	130	130	130	130

Shell details
Ammunition	Velocity in m/s	Projectile Mass in kg	Fuse delay in m:	Fuse sensitivity in mm:	Explosive Mass in g (TNT equivalent):	Normalization At 30° from horizontal:	Ricochet:
							0%	50%	100%
M1 shell	472	15	0.1	0.1	2,180	+0°	79°	80°	81°
M67 shot	381	13	0.0	0.1	1,610	+0°	62°	69°	73°

Smoke characteristic
Ammunition	Velocity in m/s	Projectile Mass in kg	Screen radius in m	Screen time in s	Screen hold time in s:	Explosive Mass in g (TNT equivalent):
M84	457	15	20	5	25	50

Ammo racks

Ammo racks layout of the M4A3 (105).

Full ammo	1st rack empty	2nd rack empty	3rd rack empty	4th rack empty	5th rack empty	Visual discrepancy
66	53 (+13)	40 (+26)	27 (+39)	14 (+52)	1 (+65)	yes

Machine guns

12.7 mm M2HB
Pintle mount
Capacity (Belt capacity)				Fire rate (shots/minute)	Vertical guidance	Horizontal guidance
600 (200)				576	-10°/+30°	±60°

7.62 mm M1919A4
Coaxial mount
Capacity (Belt capacity)				Fire rate (shots/minute)	Vertical guidance	Horizontal guidance
3,000 (250)				500	N/A	N/A

Usage in the battles

This tank plays best as a support tank, stay with other tanks that have better side armour while using the relatively thick front armour to soak a few shots. Use the HEAT rounds to penetrate most armour of the M4A3 (105)'s rank and above, and remember that the M4A3 (105) is no brawler, so staying in the front line too close to hostiles will most likely spell a K.O. by ammo or crew. This tank gun has a very low velocity, so make sure to compensate for a large amount of drop

Having in mind the large calibre of this tank's main weapon, one can conclude that the HE shell (M1 shell) is big enough to dispatch some tanks. However, any armour larger than 28 mm won't let the explosion result in penetration. So for firing at strong armour plates, the HEAT shell (M67 shot) is required. It should be a top priority to research it. The HE shell will, however, be the most effective option whenever this Sherman's controller can find a suitably soft spot in the enemy vehicle's armour. Against soft vehicles, like most SPAA, the choice of ammunition for the main gun is fairly irrelevant, since a single shot should be enough to dispatch one of these, and remaining crew members can be taken down with one of the tank's Browning machine guns, although HE is certainly the most effective at dishing out damage when armour is absent.

The HEAT round, unlike the HE one, has a tracer charge, which facilitates aiming. This is not critical, however, since the HE shell's sheer size allows for it to be seen without too much effort.

Tactics

The M4A3 (105) HVSS Sherman is a support tank, not a front-line brawler. Its adequate armour protection and a powerful gun put it on about the level of the M10 Tank Destroyer, but it has certain flaws and qualities that make it different than the usual Sherman tanks. Due to the 105 mm howitzer, knocking out the enemy crew in lightly armoured vehicles is a piece of cake. Aim for the enemy tank's lower turret to cause the most damage possible with the HE shells, as the HE shrapnel can be deflected down onto the hull roof and mess up the enemy crew. The 105 mm HE could also be aimed at the enemy tracks to blow it off, immobilizing the enemy. If none of the HE shells does damage to the target (which shouldn't happen most of the time), a well-placed HEAT shell, once unlocked, can easily set a tank aflame or blow up ammo stores. Don't get to close to enemy vehicles unless it is a limited traverse gun tank destroyer, in which case blow up its tracks with a HE that should do the trick.

A downfall(s) of the M4A3 (105) HVSS Sherman is its average mobility, slow turret traverse, and slow reload. Therefore, it is recommended to stick to allied tanks like glue or rely on hit-and-run tactics. The low velocity makes long-range shots relatively difficult. Never stay in the sights of tanks such as the long-barrel 75 mm Panzer IV F2/G, StuG III F/G or T-34/KV-1. These tanks can penetrate the M4A3 (105) HVSS Sherman's front armour, some more easily than others. Try not to get hit in the rear area as it will set the tank on fire and immobilize it, putting it in an extremely disadvantageous situation.

Modules

Tier	Mobility		Protection	Firepower
I	Tracks		Parts	Horizontal Drive	M67 shot
II	Suspension	Brake System	FPE	Adjustment of Fire
III	Filters		Crew Replenishment	Elevation Mechanism
IV	Transmission	Engine		Artillery Support	M84	Smoke grenade

Parts, M67 shot and Fire system are key! Followed by all accuracy improvements, everything else is optional, but Artillery and all mobility upgrades are welcomed.

Pros and cons

Pros:

• Devastating against lightly armoured tanks
• HE shells can cause serious damages even with a non-penetrating hit
• HEAT shell option with approximately 130 mm of penetration at any range, making it able to take on even the KV-1 from the front
• Both HE and HEAT shells have a high chance of causing hull breaks on lightly armoured foes
• .50 cal machine gun on top can provide AA defence
• Good mobility, best hp/weight ratio of any Sherman
• HVSS suspension gives good cross-country mobility
• Wide tracks makes it easier to brake at high speeds and climb steep mountains
• Better sloped frontal armour that can withstand lots of punishment
• Smoke grenades (only USA Sherman equipped with them) and smoke shells are very useful for team support and self-protection

Cons:

• Poor ballistics, especially with HEAT shells, long-range fighting is not recommended, due to its extremely low shell velocity
• Slow reverse speed, retreating from dangerous situations may be a hassle
• Stock HE ineffective against even moderately armoured tanks
• HEAT shell post-penetration damage is somewhat punctual, follow up shots may be required at times
• Often targeted due to the large 105 mm gun
• Side and rear armour are very weak in comparison to the front
• Very slow turret traverse rate, relies on turning hull to get gun onto targets away from turret front
• Poor stationary turning ability combined with slow turret traverse makes flanking enemies a dangerous foe
• Long reload of more than 10 seconds

History

The M4 Sherman were originally equipped with the 75mm M3 cannon. Though the 75mm was thought to be an overall effective gun, certain situations called for more destructive power. Enter the 105mm M4 Howitzer, a mountable artillery piece for a tank. The army decided to arm the Shermans with these artillery pieces for a radical increase in explosive power. The first of its model was a M4A2 Sherman with its turret mounting the formidable cannon in the M52 mount, these Shermans were designated M4(105) and were accepted into service in February 1944. Later, M4A3 Shermans were also being converted into 105mm with the name M4A3(105) When the HVSS was developed for the M4 Shermans by mean of the M4A3E8, the same was applied to the M4s with the 105mm because of its increased weight, so an improved suspension would increase mobility. These Shermans were then designated to M4(105) HVSS or M4A3(105) HVSS and remained that way to the end of the war. The 105 mm Shermans were produced by Chrysler Corporation at the Detroit Tank Arsenal. 800 M4(105) and 841 M4(105) HVSS were produced from February 1944 to March 1945, and 500 M4A3(105) and 2539 M4A3(105) HVSS were produced in May 1944 to June 1945. This brings a total of 4680 Shermans with the 105mm howitzer as its main armament during its production time.

After World War II ended, the M4A3E8 with the 76mm cannon and 105mm howitzer became the mainstay of the United States armoured forces as they were the most advanced version of the Shermans at the time. The M4 (105) are also quite good tank killers. Documents show that the HEAT rounds fired from the 105mm has penetrated through a Panther's frontal armour, which could kill the crew. Even then, the sufficiently powerful high-explosive rounds could cause massive spalling inside tanks, harming the crew inside.

In-game description

"In May 1944 the Detroit Tank Arsenal launched production of M4A3s equipped with 105 mm M4 howitzers. The modification happened similarly to the M4 (105) modernization, one of the most serious alterations of the tank's armament to be made. The upgraded turret boasted a 105 mm howitzer in place of the 76 mm cannon, making the tank capable of taking on many German models.

Shermans with the 105 mm cannon did not have wet stowage. Instead, their ammunition was kept in dry stowages, meaning that the storage bins were kept in the center of the battle compartment. The Detroit Tank Arsenal produced 800 M4A3(105)s between February 1943 and September 1943, though the earlier models did not have a cupola.

M4A3(105)s saw combat on the Western Front and in Italy between 1944 and 1945."

Media

Skins

• Skins and camouflages for the M4A3 (105) from live.warthunder.com.

Videos

Best Combo #1 discusses the M4A3 (105) at 0:55 - War Thunder Official Channel

Read also

[Manual] FM 17-76 - Crew Drill and Service of the Piece Medium Tank, M4 Series (105-mm Howitzer)

Sources

Paste links to sources and external resources, such as:

• topic on the official game forum;
• other literature.