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M6A2E1

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Premium  M6A2E1

M6A2E1_render_1.jpg
Battle Tier
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Overview
Mouse over "
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.
]
7,500  Gold Cost
1550Expression error: Unrecognized word "unable". HP Hit Points
66.96/70.5Expression error: Unexpected < operator./Expression error: Unrecognized word "unable". t Weight Limit
Crew
  1. Commander
  2. Gunner
  3. Driver
  4. Radio Operator
  5. Loader
Mobility
960960 hp Engine Power
29/14 km/h Speed Limit
28Unable to match configuration for query: chassis:a45_m6a2e1::top|traversespeed deg/s Traverse
14.34Expression error: Unexpected < operator. hp/t Power/Wt Ratio
NoNo Pivot
Armor
191/66/51 mm Hull Armor
229/89/208Unable to match configuration for query: turret:a45_m6a2e1::top|armorturretfront/Unable to match configuration for query: turret:a45_m6a2e1::top|armorturretside/Unable to match configuration for query: turret:a45_m6a2e1::top|armorturretback mm Turret Armor
Armament







{{#ifeq:Unable to match configuration for query: gun:a45_m6a2e1::stock|shellkind2|ARMOR_PIERCING||



{{#ifeq:Unable to match configuration for query: gun:a45_m6a2e1::stock|shellkind3|ARMOR_PIERCING||








{{#ifeq:Unable to match configuration for query: gun:a45_m6a2e1::top|shellkind2|ARMOR_PIERCING||



{{#ifeq:Unable to match configuration for query: gun:a45_m6a2e1::top|shellkind3|ARMOR_PIERCING||


Shells




















0/0/0




















0/0/0
Shell Cost
320/320/420Unable to match configuration for query: gun:a45_m6a2e1::top|damage1/Unable to match configuration for query: gun:a45_m6a2e1::top|damage2/Unable to match configuration for query: gun:a45_m6a2e1::top|damage3 HP Damage
204/245/53Unable to match configuration for query: gun:a45_m6a2e1::top|penetration1/Unable to match configuration for query: gun:a45_m6a2e1::top|penetration2/Unable to match configuration for query: gun:a45_m6a2e1::top|penetration3 mm Penetration



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Expression error: Unrecognized word "unable". r/m 

Magazine-fed Gun

Burst Length: Unable to match configuration for query: gun:a45_m6a2e1::stock|burstcount rounds
Magazine Size: Unable to match configuration for query: gun:a45_m6a2e1::stock|clipcount roundExpression error: Unrecognized word "unable".
Cycle Time: Expression error: Unexpected < operator. s
Magazine Reload Times
Nominal: Unable to match configuration for query: gun:a45_m6a2e1::stock|reloadtime s
50% Crew: Expression error: Unexpected < operator. s
75% Crew: Expression error: Unexpected < operator. s
100% Crew: Expression error: Unexpected < operator. s
With Vents: Expression error: Unexpected < operator. s
With Vents and BiA: Expression error: Unexpected < operator. s

Click here for more information.



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Expression error: Unrecognized word "unable". r/m 

Magazine-fed Gun

Burst Length: Unable to match configuration for query: gun:a45_m6a2e1::top|burstcount rounds
Magazine Size: Unable to match configuration for query: gun:a45_m6a2e1::top|clipcount roundExpression error: Unrecognized word "unable".
Cycle Time: Expression error: Unexpected < operator. s
Magazine Reload Times
Nominal: Unable to match configuration for query: gun:a45_m6a2e1::top|reloadtime s
50% Crew: Expression error: Unexpected < operator. s
75% Crew: Expression error: Unexpected < operator. s
100% Crew: Expression error: Unexpected < operator. s
With Vents: Expression error: Unexpected < operator. s
With Vents and BiA: Expression error: Unexpected < operator. s

Click here for more information.
Rate of Fire






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Expression error: Unrecognized word "unable".

Magazine-fed Gun

Using Shell Type 1 (Unable to match configuration for query: gun:a45_m6a2e1::stock|damage1 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.

Magazine-fed Gun

Using Shell Type 2 (Unable to match configuration for query: gun:a45_m6a2e1::stock|damage2 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.

Magazine-fed Gun

Using Shell Type 3 (Unable to match configuration for query: gun:a45_m6a2e1::stock|damage3 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.






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Expression error: Unrecognized word "unable".

Magazine-fed Gun

Using Shell Type 1 (Unable to match configuration for query: gun:a45_m6a2e1::top|damage1 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.

Magazine-fed Gun

Using Shell Type 2 (Unable to match configuration for query: gun:a45_m6a2e1::top|damage2 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.

Magazine-fed Gun

Using Shell Type 3 (Unable to match configuration for query: gun:a45_m6a2e1::top|damage3 Damage):


Theoretical Damage Per Minute
Nominal: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Advantageous Damage Per Minute
Loaded-mag DPM: Expression error: Unrecognized word "unable".
50% Crew: Expression error: Unrecognized word "unable".
75% Crew: Expression error: Unrecognized word "unable".
100% Crew: Expression error: Unrecognized word "unable".
With Vents: Expression error: Unrecognized word "unable".
With Vents and BiA: Expression error: Unrecognized word "unable".

Click here for more information.
Damage Per Minute


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Expression error: Unrecognized word "unable". m 

With 50% Crew: Expression error: Unexpected < operator. m
With 75% Crew: Expression error: Unexpected < operator. m
With 100% Crew: Expression error: Unexpected < operator. m
With BiA: Expression error: Unexpected < operator. m
With BiA and Vents: Expression error: Unexpected < operator. m
Maximum possible: Expression error: Unexpected < operator. m

For more details, see Crew


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Expression error: Unrecognized word "unable". m 

With 50% Crew: Expression error: Unexpected < operator. m
With 75% Crew: Expression error: Unexpected < operator. m
With 100% Crew: Expression error: Unexpected < operator. m
With BiA: Expression error: Unexpected < operator. m
With BiA and Vents: Expression error: Unexpected < operator. m
Maximum possible: Expression error: Unexpected < operator. m

For more details, see Crew
Accuracy


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Expression error: Unrecognized word "unable". s 

With 50% Crew: Expression error: Unexpected < operator. s
With 75% Crew: Expression error: Unexpected < operator. s
With 100% Crew: Expression error: Unexpected < operator. s
With GLD: Expression error: Unexpected < operator. s
With BiA: Expression error: Unexpected < operator. s
With BiA and Vents: Expression error: Unexpected < operator. s
With both and GLD: Expression error: Unexpected < operator. s
Maximum possible: Expression error: Unexpected < operator. s

For more details, see Crew or Equipment


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Expression error: Unrecognized word "unable". s 

With 50% Crew: Expression error: Unexpected < operator. s
With 75% Crew: Expression error: Unexpected < operator. s
With 100% Crew: Expression error: Unexpected < operator. s
With GLD: Expression error: Unexpected < operator. s
With BiA: Expression error: Unexpected < operator. s
With BiA and Vents: Expression error: Unexpected < operator. s
With both and GLD: Expression error: Unexpected < operator. s
Maximum possible: Expression error: Unexpected < operator. s

For more details, see Crew or Equipment
Aim time
Unable to match configuration for query: turret:a45_m6a2e1::stock|turrettraverseUnable to match configuration for query: turret:a45_m6a2e1::top|turrettraverse deg/s Turret Traverse
360° Gun Arc
-10°/+20°-Unable to match configuration for query: gun:a45_m6a2e1::top|depression°/+Unable to match configuration for query: gun:a45_m6a2e1::top|elevation° Elevation Arc
Unable to match configuration for query: gun:a45_m6a2e1::stock|maxammoUnable to match configuration for query: gun:a45_m6a2e1::top|maxammo rounds Ammo Capacity
General
2020 % Chance of Fire






Unable to match configuration for query: turret:a45_m6a2e1::stock|viewrange m 

With 50% Crew: Expression error: Unexpected < operator. m
With 75% Crew: Expression error: Unexpected < operator. m
With 100% Crew: Expression error: Unexpected < operator. m
With Recon and Situational Awareness: Expression error: Unexpected < operator. m
With Coated Optics: Expression error: Unexpected < operator. m
With Binocular Telescope: Expression error: Unexpected < operator. m
Maximum possible: Expression error: Unexpected < operator. m

For more details, see Skills or Equipment






Unable to match configuration for query: turret:a45_m6a2e1::top|viewrange m 

With 50% Crew: Expression error: Unexpected < operator. m
With 75% Crew: Expression error: Unexpected < operator. m
With 100% Crew: Expression error: Unexpected < operator. m
With Recon and Situational Awareness: Expression error: Unexpected < operator. m
With Coated Optics: Expression error: Unexpected < operator. m
With Binocular Telescope: Expression error: Unexpected < operator. m
Maximum possible: Expression error: Unexpected < operator. m

For more details, see Skills or Equipment
View Range


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570 m 

With 50% Crew: 460.1 m
With 75% Crew: 527 m
With 100% Crew: 594.5 m
With 100% Signal Boost: 684 m
When affected by 100% Relaying: 627 m
Maximum possible: 855.7 m

For more details, see Skills or Equipment


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570 m 

With 50% Crew: 460.1 m
With 75% Crew: 527 m
With 100% Crew: 594.5 m
With 100% Signal Boost: 684 m
When affected by 100% Relaying: 627 m
Maximum possible: 855.7 m

For more details, see Skills or Equipment
Signal Range
Values are Stock - click for Top
M6A2E1

Additional Statistics
(Top Configuration)

Camouflage

  • Stationary: 1.1%
  • When Moving: 0.5%
  • When Firing: 0.2%


Terrain Resistance

  • On Hard Ground: 1.09
  • On Medium Ground: 1.43
  • On Soft Ground: 2.74


Dispersion Change Values

  • Turret Contribution
  • Rotation: 0.17
  • Shot Recoil: 3.84
  • Suspension Contribution
  • Acceleration: 0.21
  • Turning: 0.21


With 100% Crew

VIII

AnnoA45_M6A2E1.png

7500

The M6A2E1 is an American tier 8 premium heavy tank.

The M6A2E1 was a further development of the T1 and M6 heavy tanks. Developed in August 1944, the vehicle had a larger turret and the 105-mm gun. Never saw mass production.

Originally available as part of the game's Heavy Pre-Order Package, it has reappeared for sale on the 1st of April, 2017, causing considerable controversy because of past promises that it would never be offered for sale. It is an M6 hull with almost doubled front armor plus a prototype (weaker and larger) T29 turret. Thanks to the rather strange looking fusion, this tank has earned the nickname of "mutant".

The M6A2E1 has an imposing slab of armour on the front, measuring out to almost 240mm after including slope. Flanking this tank is a good idea since the side and rear armor are especially thin.

The same 105mm gun as the T29 and T32 is mounted on the M6A2E1 with a lower rate of fire. It has reasonable manoeuvrability for a heavy tank, but a speed cap of 29 km/h discourages major map travel.

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)

105 mm Gun T5E1E 204/245/53 320/320/420 5.05 0.4 2.1 118000

Ico_turret_alpha.png

Turrets

Tier Turret Turret Armor (front/sides/rear)
(mm)
Turret Traverse Speed
(deg/s)
View Range
(m)
Weight
(kg)
Price
( Credits)

M6A2E1D4 // 23 380 19200

Ico_engine_alpha.png

Engines

Tier Engine Engine Power
(hp)
Chance of Fire on Impact
(%)
Weight
(kg)
Price
( Credits)

X Wright G200 M781C9GC5 960 20 612 100000

Ico_suspension_alpha.png

Suspensions

Tier Suspension Load Limit
(т)
Traverse Speed
(gr/sec)
Rmin Weight
(kg)
Price
( Credits)

M6A2E1HVSS 0 0 15000

Ico_radio_alpha.png

Radios

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

VIII SCR 508/1 570 100 21600

Compatible Equipment

Low Noise Exhaust System Class 1 Vertical Stabilizer Class 1 Heavy Spall Liner Camouflage Net Class 2 Coated Optics Class 1 Stabilizing Equipment System Experimental Optics Wear-Resistant Gun Laying Drive Improved Configuration Venting System Innovative Loading System Enhanced Gun Laying Drive Class 1 Improved Hardening Class 1 Additional Grousers Class 1 Modified Configuration Class 1 Improved Rotation Mechanism Class 1 Improved Aiming Class 1 Improved Ventilation Class 1 Binocular Telescope Class 1 Gun Rammer Class 1 Turbocharger Class 1 

Compatible Consumables

Stabilizer Greasing Automatic Fire Extinguisher Natural Cover Optical Calibration Case of Cola Aim Tuning Experienced Firefighters 100-octane Gasoline 105-octane Gasoline Manual Fire Extinguisher Pre-Battle Maintenance Vent Purge 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 Combat Course 


Player Opinion

Pros and Cons

Pros:


  • Very tough frontal armor
  • Great gun depression
  • Very powerful engine, good acceleration
  • Preferential matchmaking
  • Slightly better AP penetration than its techtree counterpart T32


Cons:


  • Huge, tall target with abysmal camouflage, easily spotted
  • Low top speed
  • Very poor DPM
  • Poor accuracy
  • Very thin armor on the sides and rear hull


Performance

The playstyle of an M6A2E1 driver is to manoeuvre so that its weak sides are always covered by its frontal plate or hard cover then use that solid protection to smash down opponents with its decent 105mm gun. Through sheer armor thickness and difficult frontal weakspots this is brutal against lower tier tanks and challenging for equivalent tanks of its own tier. Against difficult opponents like T8-9 tank destroyers or T9 heavy/medium tanks with high penetration guns there isn't much chance of bouncing but the M6A2E1 still has a good health pool of 1500 to fight back with. Since both the upper and lower frontal plate sport the same nominal armour thickness of 191mm and similar angles, there is no need to go hulldown. In fact, deliberately showing your frontal hull is an advantageous strategy. The more shots you can bait into being fired at your hull instead of the commander's cupola, the better.

The tank is at its worst if exposed to threats on more than one side. No tank enjoys being flanked but the M6A2E1 is a massive target which will take full HE shell damage from very ordinary guns on the rear and sides and that is uniquely bad among heavy tanks at any level.

Strong tactics for this tank are nose-first corner peeking/shooting and leading pushes along roads or natural corridors where an enemy cannot easily bypass its strong front.

Sidescraping is not valid for the M6A2E1, travelling across open ground is extremely dangerous and hiding in bushes requires more bushes than you can see through.

Mobility is capped at 29kph which is easily reached except in rivers/swamp but the engine power shows its worth on hilly terrain where power/weight is more important. While not a map crosser it has good consistency in the speed it can reach. The speed limit does mean you need to consider that you are likely to be second or third to any distant choke points early in the game.


Early Research

None, this is a premium tank


Suggested Equipment


Improved VentilationTank Gun Rammer Vertical Stabilizer 


Gallery

Historical Info

The Heavy Tank M6 had the worst fate of all mass produced heavy tanks of WWII. A decent vehicle with competitive characteristics became another victim of work dragging on too long. The tank was accepted into service, but only 40 vehicles in 3 modifications were produced, and none of them saw combat. By 1943, the M6 was obsolete and its road to the front lines was closed. However, a heavily modified version of the tank was soon once again in demand, and urgently. This is the modernization covered by this article.

Urgent Measures

The Americans got lucky in Normandy. Unlike what Hollywood movies, where American soldiers fight off hordes of Tigers, the Yankees didn't meet any in the summer of 1944. Most of the fighting of the "big cats" fell to the British, Canadians, and Poles, but that didn't make the Americans' lives that much easier.

As unusual as it sounds, the British, whose main tank at the time was also the Sherman (mostly Sherman V and Sherman III) were much better prepared for fighting the Panthers and Tigers. By the start of the Normandy operation, the British had over 300 Sherman VC tanks, better known as the Firefly. Their 17-pounder (76 mm) guns could easily penetrate any German tank through the front. In addition to those, the British built Achilles tank destroyers, also equipped with 17-pounder guns, on the chassis of American M10 tank destroyers. In addition to all this, towed 17-pounder guns were available in ample quantities.

As for the Americans, they had the aforementioned M10 GMCs, lighter M18 GMCs, and M4A1(76)W tanks that just started to appear in armoured units. All these vehicles had 76 mm guns with the ballistics of the 3 inch M1917 AA gun. These guns were more powerful than 75 mm M3 guns on regular Shermans, but they weren't perfect for fighting new German tanks. Recall Belton Cooper's memoirs "Death Traps" which describes what an American tank officer thought of the tanks in which his comrades fought and died. Of course, this book distorts reality, like all memoirs, but the general theme is correct. Even the Panther was a serious problem for American tanks. The only vehicle in the American arsenal that could deal reliably with either Tigers or Panthers was the M36, which used a 90 mm gun, but they were in short supply.

Meanwhile, on July 18th, 1944, the British met a new threat. Near Cagny, tankers from the Irish Guards encountered the newest German Tiger II tank from the 503rd Heavy Tank Battalion. John Gorman's tank rammed the German tank in the side and managed to disable it with a good shot. The ferocity of the battle can be seen from the fact that the Guards had 15 tanks burned and 45 were disabled.


Information about new German tanks immediately became known to Allied command. The British were ready for the Tiger II. The 17-pounder could penetrate the King Tiger in the front, although from a smaller distance than a regular Tiger or a Panther. For the Americans, the new tank was a huge problem. There was nothing they could use to penetrate its front. Even the 90 mm AA gun that could be used as an anti-tank weapon was not enough. It's no wonder that, immediately after receiving this information, General Eisenhower requested a new tank, preferably a heavy one, with a gun that could deal with this new threat.

A gun to fight the Tiger II was quickly found. This was the 105 mm T5E1 tank gun which was being developed for the T28 tank destroyer. From 917 meters, its T32 shell could penetrate 135 mm of armour at an angle of 30 degrees. This gun could confidently penetrate a Tiger II from the front from a few hundred meters. There was one small problem: finding a tank for this gun. The T28 was not an option, as the drafts were not yet completed. The obvious choice was the M6. These forgotten tanks were once again in demand.


Victim of its Own Chassis

On July 28th, 1944, a little more than a week after the battle at Cagny, General Electric proposed a design project for the conversion of the M6 Heavy Tank to accept a larger gun. The initial concept was significantly different from what was built in metal. This mostly applies to the turret, which initially resembled a modified T25 medium tank turret. The turret received a larger bustle which also served as a counterweight. The 105 mm T5E1 gun required a 2032 mm wide turret ring.


It was not enough to modernize the turret and install a bigger gun. The hull was also seriously altered. The Bureau of Ordnance was full of realists who realized that the size of the M6 made it a good target and that 80 mm of front armour was not enough.

To solve this problem, the hull machinegun and driver's observation port were removed. An additional armoured plate was planned, which would bring up the tank's total armour to 182 mm. The driver's visibility drastically decreased, but tankers would certainly be willing to deal with that limitation for such armour. The side observation devices were also removed.


On July 31st, Major General Gladeon M. Barnes, the head of the technical department at the Bureau of Ordnance, sanctioned the transfer of work on modernization of the M6 Heavy Tank to General Electric. The project due date was "ASAP". On the next day, the tank received an index: M6A2E1. The choice was simple: the M6A2, also known as T1E1, was the most common of the M6 Heavy Tank family. In total, 20 of these tanks were built. A conversion of 15 tanks was planned, with the rest serving as spare parts. Wellman Engineering Company was chosen as a contractor for the turrets. 15 turrets in total would be built.


August 1st was a difficult day for Major General Barnes. Even though the due date was "ASAP", 60 days were allotted for this project. Even a simple inspection of the tanks that would be converted extended that time to 90 days, which included the conversion of 10 tanks. On that day, a subcontractor for the turrets was chosen, Continental Foundry & Machine Company in Chicago. Barnes' next day was also a rough one. Front-line general Lucius Clay spoke out against converting the M6 Heavy Tank. It is very likely that Eisenhower listened to Clay's comments. They definitely had an effect on the further development of the situation.


Work on the M6A2E1 continued. On August 5th, General Electric demonstrated a slightly modified draft. Some of its characteristics caused a disturbance. For instance, calculations showed that the weight of the enlarged turret, new gun, and additional armour would push the mass from 57 tons (M6A2) to 77 tons.

The Bureau of Ordnance was eager to accelerate work on the M6A2E1, but Barnes first mentioned new T29 and T30 Heavy Tank projects on August 14th. The general had some experience in tank design and knew that an increase of 20 tons would have a significant effect on the tank's agility. Nevertheless, work continued, and General Electric actively collected subcontractors in the middle of August.


Both M6A2E1 prototypes lost their hull machineguns, but did not receive additional armour.

Suddenly, a letter came from London on August 18th, 1944, bearing Eisenhower's signature. This letter cancelled the order for 15 M6A2E1 tanks. This didn't happen without Clay's influence, but it's hard to say that he was wrong. When an M6A2 tank was loaded to 77 tons at Aberdeen, it could not climb up a 40% grade (about 22 degrees). Considering that while even relatively flat Normandy had plenty of hills, the Ardennes and their much more severe terrain came right after, Clay's caution was understandable. On August 22nd, 1944, the M6A2 conversion program was permanently shut down.

Test Bench

The closure of the program did not mean that the M6A2E1 wouldn't be built at all. Barnes mentioned the T29 and T30 tanks. To speed up work, it was decided on August 22nd, 1944, to continue the modernization program, but limit it to two tanks. On December 16th, Continental Foundry & Machine Company received an order for two turrets to be installed on tanks and one to be used for gunnery trials.


By then, work on the T29 began, which reflected on the M6A2E1's turret design. As mentioned above, the turret was initially an evolution of the Medium Tank T25 design. In the fall of 1944, it changed radically.

First, due to its excessive mass, the sides were thinned out to 100 mm. Later, the overall design changed, making the roof welded. In February of 1945, that design was discarded. The tank got a new 4-man turret, as the round was separated into two pieces. This changed the layout of the turret and increased its size. In May of 1945, the turrets were finally made by Continental Foundry & Machine Company, having nothing in common with the original proposal.


Rumours about the installation of a T29 tank's turret on the M6A2E1 chassis in May of 1945 have no basis in reality. The installed turrets were planned for the M6A2E1 all along. The T29 Heavy Tank received a completely new turret, even though it was an evolution of this design.

According to documents, the tanks started their first trials in May of 1945. These tanks differed from the initial design not only in the turret, but in the hull. Since they would never see combat, the extra armour was not installed. The driver's observation device remained, but the hull machinegun was removed. Nevertheless, the tank's mass still grew to almost 70 tons. Even though initially the T5E1 was not meant to have a muzzle brake, trials showed that one was necessary.


Trials continued in June. On June 7th, the first prototype arrived at Aberdeen for mobility trials. The second prototype was used to test the gun and ammunition. As for the turret, it started trials in May of 1945. In documents, it was called T29 (M6A2E1) Cast Turret, which likely confused several researchers.

Turret #2 was fired at with machineguns, with interesting results. It turned out that there were cases of bullets ricocheting off the front of the turret, then the gun mantlet, and ended up inside the turret. The gun mantlet needed changes, which were implemented on the Heavy Tank T29.

The side of the turret was shot at with the 90 mm M3 gun. Cracks were discovered near the nonpenetrating hits, and one penetration was recorded. Firing at the gun mantlet also caused cracks, but no penetration. The mantlet was also fired at with the 105 mm T8 gun, also with no penetration. The final stage of the trials was fire from the 155 mm M1 Long Tom gun with the M112 AP shell.

The gunnery trials that the second prototype participated in were the most important ones. Their results introduced some changes into the T5E1. For instance, the recoil mechanism was changed, and a muzzle brake was added. In August of 1945, the idea of installing a 155 mm gun from the T30 tank into the M6A2E1 surfaced, but never reached the practical stage.

Both vehicles took part in various trials until 1946. After trials were finished, the first M6A2E1 prototype was sent to the Aberdeen tank museum. Sadly, in the early 1950s, it was scrapped along with many other tanks and SPGs. The second vehicle suffered the same fate.

American Heavy tank comparision
Mk.VII M6 T28 T29 T30 T32 T34 M103A2
Crew 8 6 4 6 6 5 6 5
Lenght 10,43m 8,43m 11,12m 11,56m 10,9m 10,83m 11,77m 11,23m
Width 3,66m 3,12m 4,54m 3,8m 3,8m 3,76m 3,8m 3,63m
Height 3,12m 3,00m 2,86m 3,22m 3,22m 2,81m 3,22m 3,56m
Weight 39,5t 57,4t 86,3t 64,25t 64,74t 54,5t 65,2t 58,1t
Engine
power
Liberty
338hp
G-200
960hp
GAF
500hp
GAC
770hp
AV1790
810hp
GAC
770hp
AV1790
810hp
AV1790
750hp
Max. speed 8,8km/h 35km/h 12,8km/h 35km/h 35km/h 35km/h 35km/h 37km/h
hull armour
(angle)
12mm
(28)
83mm
(30)
305mm 102mm
(54)
102mm
(54)
127mm
(54)
102mm
(54)
127mm
(60)
side armour 12mm 70mm 152mm 76mm 76mm 76mm 76mm 51mm
Turret armour
(mantlet)
16mm 83mm
(102mm)
- 178mm
(279mm)
178mm
(279mm)
298mm
(298mm)
178mm
(279mm)
127mm
(254mm)
top armour 6-10mm 25mm 38mm 38mm 38mm 38mm 38mm 38mm
bottom armour 6-8mm 25mm 25mm 25mm 25mm 25mm 25mm 38mm
Gun 2x57mm
Hotchkiss
75mm M7
37mm MB
105mm
T5E1
105mm
T5E2
155mm
T7
90mm
T15E2
120mm
T53
120mm
M58
Secondary
armament
5x7,62mm
Hotchkiss
2x12,7mm
HB M2
2x7,62mm
M1919A4
12,7mm
HB M2
3x12,7mm
HB M2
7.62mm
M1919M4
2x12,7mm
HB M2
7.62mm
M1919M4
12,7mm
HB M2
2x7.62mm
M1919M4
3x12,7mm
HB M2
7.62mm
M1919M4
3x12,7mm
HB M2
7.62mm
M37


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Sources and External Links

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Germany IVPz.Kpfw. B2 740 (f) IVDurchbruchswagen 2 VITiger 131 VIVK 30.01 (P) VIVK 36.01 (H) VIIVK 45.03 VIITiger I VIITiger (P) VIIIVK 100.01 (P) VIIIVK 168.01 (P) VIIIVK 168.01 Mauerbrecher VIIIVK 75.01 (K) VIIIE 75 TS VIIILöwe VIIITiger II VIIIVK 45.02 (P) Ausf. A IXE 75 IXMäuschen IXVK 45.02 (P) Ausf. B XE 100 XPz.Kpfw. VII XMaus XVK 72.01 (K)
France IVB1 VBDR G1 B VIARL 44 VIIAMX M4 mle. 45 VIIIAMX 50 100 VIIIAMX M4 mle. 49 VIIIAMX M4 mle. 49 Liberté VIIIAMX 65 t VIIISomua SM VIIIFCM 50 t IXAMX 50 120 IXAMX M4 mle. 51 XAMX 50 B XAMX M4 mle. 54
USSR VChurchill III VKV-220-2 VKV-220-2 Beta Test VKV-1 VIKV-1S VIKV-2 VIKV-2 (R) VIKV-85 VIObject 244 VIT-150 VIIIS VIIKV-3 VIIKV-122 VIIIS-2M VIIIS-2 shielded VIIIS-2 VIIIIS-3 VIIIIS-6 VIIIIS-6 B VIIIKV-5 VIIIKV-4 VIIIIS-5 (Object 730) VIIIIS-3A VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U VIIIIS-M VIIIObject 703 Version II VIIIIS-2-II IXT-10 IXObject 777 Version II IXObject 257 IXObject 705 IXIS-3-II IXST-I XIS-4 XIS-7 XObject 260 XObject 705A XObject 277 XObject 279 early XST-II
China VIIIS-2 VIIIWZ-111 VIIIWZ-111 Alpine Tiger VIII110 VIII112 IXWZ-111 model 1-4 X113 XWZ-111 model 5A
Japan IIIType 91 Heavy IVType 95 Heavy VO-I Experimental VIHeavy Tank No. VI VIO-I VIIO-Ni VIIIO-Ho IXType 4 Heavy XType 5 Heavy
Czechoslovakia
Sweden VIIIEmil I VIIIEMIL 1951 IXEmil II XKranvagn
Italy
Poland VII45TP Habicha VIII50TP prototyp VIII53TP Markowskiego IX50TP Tyszkiewicza X60TP Lewandowskiego
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UK IILight Mk. VIC IIISexton I IVAC 1 Sentinel VExcelsior VMatilda Black Prince VIAC 4 Experimental VITOG II* VICromwell B VISherman VC Firefly VIExcalibur VIIFV201 (A45) VIIAT 15A VIIIFV1066 Senlac VIIIFV4202 VIIIChieftain/T95 VIIICaernarvon Action X VIIICenturion Mk. 5/1 RAAC VIIIChimera VIIITurtle Mk. I XFV215b XFV215b (183) XT95/FV4201 Chieftain
Germany IIPz.Kpfw. II Ausf. D IIMKA IIPz.Kpfw. 38H 735 (f) IIIGroßtraktor - Krupp III43 M. Toldi III IIIPz.Kpfw. II Ausf. J IIIPz.Kpfw. S35 739 (f) IIIPz.Kpfw. T 15 IVPz.Kpfw. B2 740 (f) VStuG IV VPz.Kpfw. III Ausf. K VTurán III prototípus VPz.Kpfw. IV hydrostat. VPz.Kpfw. V/IV VPz.Kpfw. V/IV Alpha VPz.Kpfw. T 25 VIDicker Max VITiger 131 VIPz.Kpfw. IV Schmalturm VIIE 25 VIIKrupp-Steyr Waffenträger VIIVK 45.03 VIIPanther/M10 VIIIPanther mit 8,8 cm L/71 VIIIKanonenjagdpanzer 105 VIIIRheinmetall Skorpion G VIIIRheinmetall Skorpion VIIIPanzer 58 VIIISchwarzpanzer 58 VIIIPanzer 58 Mutz VIIIleKpz M 41 90 mm VIIIleKpz M 41 90 mm GF VIIIVK 168.01 (P) VIIIVK 168.01 Mauerbrecher VIIIHWK 30 VIIIVK 75.01 (K) VIIIM48A2 Räumpanzer VIIIE 75 TS VIII8,8 cm Pak 43 Jagdtiger VIIILöwe IXT 55A IXKampfpanzer 50 t XVK 72.01 (K)
France IIAM 39 Gendron-Somua IIAMR 35 IIIFCM 36 Pak 40 VM10 RBFM V105 leFH18B2 VIBretagne Panther VIIAMX 13 57 VIIAMX 13 57 GF VIIIPanhard EBR 75 (FL 10) VIIIBat.-Châtillon Bourrasque VIIILorraine 40 t VIIIAMX Chasseur de chars VIIIM4A1 Revalorisé VIIIAMX M4 mle. 49 VIIIAMX M4 mle. 49 Liberté VIIISomua SM VIIIAMX Canon d'assaut 105 VIIIELC EVEN 90 VIIIFCM 50 t IXChar Futur 4 XAMX 50 Foch (155)
USSR IIT-45 IITetrarch IIIBT-SV IIILTP IIIM3 Light IIIBT-7 artillery IIIT-29 IIIT-116 IIISU-76I IIIT-127 IVA-32 IVT-28E with F-30 IVValentine II VChurchill III VKV-220-2 VKV-220-2 Beta Test VMatilda IV VT-34 shielded VSU-85I VIKV-2 (R) VIT-34-85M VIObject 244 VIT-34-85 Rudy VILoza's M4-A2 Sherman VIT-50-2 VISU-100Y VIIISU-122S VIIKV-122 VIIIS-2M VIIIS-2 shielded VIIIS-2 VIISU-122-44 VIIIIS-6 VIIIIS-6 B VIIIKV-5 VIIIISU-130 VIIIT-54 first prototype VIIIIS-5 (Object 730) VIIIIS-3A VIIIT-44-100 (B) VIIIT-44-100 (K) VIIIT-44-100 (R) VIIIT-44-100 (U) VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U VIIIT-103 VIIISTG VIIISTG Guard VIIILT-432 VIIISU-130PM VIIIObject 703 Version II IXObject 777 Version II XObject 907 XObject 260 XT-22 medium XObject 279 early
China VIType 64 VIIType 62 VIIIType 59 VIIIWZ-111 VIIIWZ-111 Alpine Tiger VIIIT-34-3 VIII112 VIII59-Patton VIIIWZ-120-1G FT VIIIM41D X121B
Japan IIType 97 Te-Ke VType 3 Chi-Nu Kai VIHeavy Tank No. VI VIIISTA-2
Czechoslovakia VIŠkoda T 40 VIIIŠkoda T 27
Sweden IIL-60 VIStrv m/42-57 Alt A.2 VIIIStrv S1 VIIIStrv 81 VIIIPrimo Victoria VIIIEMIL 1951 VIIILansen C
Italy VIIIProgetto M35 mod. 46
Poland IITKS z n.k.m. 20 mm VIPudel VIT-34-85 Rudy VIII50TP prototyp
ja:Tank:A45 M6A2E1