M1A1

M1A1

M1 Abrams

IPM1

M1A1

M1 Abrams

IPM1

USA

VII Rank

Battle rating:

AB	RB	SB
11.3	11.3	11.3

Class:

Medium tank

Research:300 000

Purchase:830 000

This page is about the medium tank M1A1. For other uses, see M1 (Disambiguation).

Description

The Tank, Combat, Full Tracked, 120-mm Gun M1A1 (shortened to M1A1) is a rank VII American medium tank with a battle rating of 11.3 (AB/RB/SB). It was introduced in Update 1.87 "Locked On".

General info

Survivability and armour

The M1A1 is essentially an IPM1 armed with a 120 mm M256 gun, meaning the armour is almost identical to its tech-tree predecessor. The tank features composite armour in gun mantlet, turret cheeks, sides and lower front plate, with composite side skirts affording some protection along the frontal half of the vehicle's hull. The M1A1 retains the Abrams series' exceptional protection against chemical energy projectiles, with the turret cheeks affording some 1,200 mm RHAe against shaped charges and the hull providing around 600 mm. However, the kinetic energy protection of the tank is quite lacklustre compared to its top tier compatriots, especially against the best rounds fielded by other nations' main battle tanks; all of which can easily penetrate the Abrams frontally in practically any location. This makes the tank quite vulnerable to enemy fire. However, the M1A1 also retains the excellent survivability of the Abrams series, with a spread out crew, separate ammunition compartment and shielding for fuel tanks and the engine compartment that make the tank unlikely to die in a single shot.

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	76	43	57.2	2058	2,898	35.98	50.66
Realistic	69	39		1343	1,519	23.48	26.56

The M1A1 features the same 1,500 horsepower AGT-1500 gas turbine equipped on the other Abrams tank, though the tank has gotten several tons heavier. When stock, the vehicle accelerates quite sluggishly and features a horrendously slow hull traverse. Fully upgraded however, the M1A1 is quite nimble with decent power-to-weight ratio and traverse capability. At 68 km/h of top speed and 40 km/h in reverse, the tank is comparable to its counterparts.

Armaments

Main armament

The M1A1's gun handles very well, with a very efficient stabiliser that allows accurate fire at any speed and a very fast 40 degrees per second turret traverse. The gun has good depression and elevation angles; negative 10 and positive 20 degrees respectively. An aced crew can reload the gun in just six seconds, which is comparable to the Leopard 2A5, Leclerc and T-80U, although slower than the Type 90 and Challenger 2.

120 mm M256					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	42	-10°/+20°	±180°	Two-plane	38.08	52.71	64.00	70.80	75.29	7.80	6.90	6.36	6.00
Realistic					23.80	28.00	34.00	37.60	40.00

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration in mm @ 0° Angle of Attack
		10m	100m	500m	1000m	1500m	2000m
M830	HEATFS	650	650	650	650	650	650
M829	APFSDS	491	488	481	473	464	454

Shell details
Ammunition	Type of warhead	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%
M830	HEATFS	1,140	13.1	0.0	0.1	2,360	+0°	65°	72°	77°
M829	APFSDS	1,670	4.3	N/A	N/A	N/A	+1.5°	78°	80°	81°

Ammo racks

Ammo racks of the M1A1

Full ammo	1st rack empty	2nd rack empty	3rd rack empty	Visual discrepancy
40	35 (+5)	18 (+22)	1 (+39)	No

Machine guns

12.7 mm M2HB
Mount	Capacity (Belt)	Fire rate	Vertical	Horizontal
Pintle (Commander)	1,000 (200)	576	-9°/+65°	±180°

7.62 mm M240
Mount	Capacity (Belt)	Fire rate	Vertical	Horizontal
Coaxial	10,000 (200)	750	N/A	N/A
Pintle (Loader)	1,400 (200)	750	-9°/+65°	-77°/+135°

Usage in battles

Stock Gameplay:

As with any vehicle, the M1A1 finds itself at a serious disadvantage while stock. Without access to thermal imaging or the powerful M829 APFSDS round, users will need to play more carefully. While the M830 HEAT-FS round is powerful, it struggles against composite armor and ERA, as well as having lackluster post-penetration effects. Generally stock M1A1 tank commanders should avoid areas with lots of foliage, as here the lack of thermals will be especially detrimental. Additionally players will have to aim more carefully to deal effective damage with the M830 HEAT round.

Spaded Gameplay:

The M1A1 is a powerful 10.3 tank. The M829 APFSDS round has plenty of penetration, and it should be easy to destroy enemy vehicles. The gun, ammo, and reload rate are comparable to other 10.3 vehicles. The M1A1 does however struggle in some regards compared to top of the line 10.3 tanks such as the Leopard 2A5. The turret protection on the M1A1 is not capable of stopping several of the best APFSDS rounds at it's tier at close range. Rounds like 3BM42 Mango are able to penetrate at ranges up to 3500 meters! With this in mind, players should not rely on their armor.

Close Range Engagements:

The M1A1 is very capable at close range. It has impressive acceleration and gun handling, giving it an edge over other vehicles. The Hull armor gives the M1A1 a fighting chance against less powerful rounds, and the reload rate is comparable to it's adversaries. Brawling is one of the Abrams tanks strong suits.

Long Range Engagements:

The M1A1 is capable at long range, but is outclassed by many other vehicles. The cannon is powerful, but not especially so compared to it's adversaries. The biggest issues the M1A1 will face in regards to long range engagements are the turret armor and lack of commanders thermals. While the M829 APFSDS round will fail to penetrate the turret cheeks of vehicles like T80U and Leopard 2A5, their rounds will have no such trouble with the M1A1. The lack of commanders thermals makes it difficult to scout for enemies while in full hull down, although players can bind a button to switch to the machine gun as their main weapon. This will allow them to see through the machine gun sight with a thermal imager, giving them an elevated vantage point through the thermals.

Gameplay summary:

Although the M1A1 is somewhat weak when stock, it is an adequate frontline tank while spaded. The powerful round and gun give it a strong position in the U.S. top tier lineup. However M1A1 tank commanders should remember that their turret cheeks can be penetrated by some rounds. This means it does best in close to medium range fights.

Modules

Tier	Mobility		Protection	Firepower
I	Tracks		Parts	Horizontal Drive
II	Suspension	Brake System	FPE	Adjustment of Fire	Smoke grenade
III	Filters		Crew Replenishment	Elevation Mechanism	M829
IV	Transmission	Engine	ESS	Artillery Support	Laser rangefinder	NVD

Pros and cons

Pros:

• 120 mm gun with access to good rounds, including one of the best APFSDS rounds in the game
• Turret exceptionally well protected against chemical rounds
• Decent mobility when upgraded
• Ammunition in the turret, when detonated, generally will not spread to the crew compartment
• The fuel tanks and engine compartment are separated from the crew compartment by steel plates, increasing the time it takes for a fire to destroy the vehicle
• Reload speed of the 120 mm is decent; 6 seconds with an aced crew level

Cons:

• Stock vehicle is sluggish
• Stock rounds are quite inadequate against many of the main battle tanks the vehicle faces
• Ammunition variety is limited to two choices, a HEAT-FS and APFSDS round
• Reload time slower than 105 mm armed predecessors
• Hull and turret armour less effective against kinetic rounds, plus are lacking in protection against the armaments of current Rank VII vehicles
• Weak turret ring armor and upper hull plate ricochets will often/sometimes lead to fatal shot traps and ammo racks.

History

Almost as soon as the first production M1 Abrams MBTs began rolling off the assembly line, did American engineers begin working on an up-gunned version of the Abrams. They succeeded in this endeavour in 1981, after a prototype Abrams, designated M1E1, was successfully fitted with a 120mm Rheinmetall smoothbore cannon.

Showing promising performance, work on the vehicle continued. At the same time, an upgraded version of the original Abrams, the IPM1, which featured improved protection and a larger turret was briefly produced between 1984 - 1986. The resulting M1A1 Abrams inherited the upgrades from the IPM1 and combined them with the M256 120 mm smoothbore cannon, a licence-built version of the German original.

The M1A1 was adopted for service in 1984 and was produced alongside the IPM1 for a short while since 1985 until the older modification was phased out of production.

The M1A1 saw its first use during the U.S. deployment in the Gulf War in 1991. Faced against arguably inferior Soviet-era tanks, the M1A1 had successfully proven its worth in tank-on-tank engagements but exposed new problems concerning its performance and vulnerability in urban environments. This led to further upgrades for the vehicle being developed later on.

Production of the M1A1 seized in 1992, with over 5,800 units being produced, including Egyptian and Australian export models. The original M1A1 chassis still serves today, albeit as upgraded variants which have undergone several modernization efforts.

- From Devblog

Media

Images

M1A1 Abrams on the move in Alaska.

Videos

The Shooting Range #140 - Metal Beasts section at 00:32 discusses the M1A1 Abrams.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

• reference to the series of the vehicles;
• links to approximate analogues of other nations and research trees.

External links

• [Devblog] M1A1 Abrams: Leaping Forward