US Heavy Tanks of WWII - Kitty Killers



Funding was allocated for 1,000~ of them, but by 1942, the Army no longer wanted it, with the Commanding General of the Armored Force saying:



"Due to its tremendous weight and limited tactical use, there is no requirement in the Armored Force for the heavy tank. The increase in the power of the armament of the heavy tank does not compensate for the heavier armor".



And so the program was terminated after 40 units had been produced.



Drawing of the M6 Heavy Tank





Top Down View of the M6.



Statistics for the M6:



6 Man Crew

322" Long with Gun Forward

123" Wide over Track armor

118" High to turret roof

63 tons combat weight

22 MPH Top Speed

3 inch M7 L53 Main Gun (75 rounds)

37mm M6 Coaxial (202 Rounds)

2 x .50 MGs in a mount in hull front (6900 rounds)

1 x .30 BMG (5500 rounds of .30 cal total)

1 x .30 cal AAMG

Stablizer: Elevation Only



HULL

Upper Front: 96mm effective

Lower Front: 102 to 70mm @ 0 to 60 degrees

Upper Sides: 47mm effective

Lower Sides: 70mm effective

Rear: 43mm effective

Top: 25mm effective

Floor: 25mm effective



TURRET

Gun Shield: 102mm effective

Front: 84mm effective

Sides: 83mm effective

Rear: 83mm effective

Top: 25mm effective



-------------------------



Later the Army replaced the 3" gun on a M6 pilot with the 90mm gun later used on the Pershing, due to a feeling that the 3" gun was soon to be inadequate in the anti-tank role. Tests showed it to be a stable platform, but by the time the reports on the tests had been written, the M6 program had been cancelled.



-------------



After D-Day, a need was felt for a limited number of tanks with thick armor to act as breakthrough units. They proposed taking existing T1E1s left over from the M6 program and modifying them, installing additional frontal armor and installing a new turret carrying a high velocity 105mm gun, and designating the modified tanks as M6A2E1s.



It was expected to have the first one delivered by 15 November 1944; but in August of 1944, Eisenhower stated that he didn't want them. Which was probably good, because when tests were carried out on a T1E1 loaded to the expected 77 ton weight, the tank could not climb a 40% slope, effectively limiting it to operating on extremely favorable terrain.



Drawing of M6A2E1





Top View of M6A2E1



Statistics for the M6A2E1:



5 Man Crew

440" Long with Gun Forward

123" Wide over Track armor

137" High to turret roof

77 tons combat weight

18 MPH Top Speed

105mm T5E1 Gun (60 rounds)

.30 Caliber Coaxial (4000 rounds)

1 x .50 cal AAMG (600 rounds)



HULL

Front: 191mm effective

Upper Sides: 47mm effective

Lower Sides: 70mm effective

Rear: 44mm effective

Top: 25mm effective

Floor: 25mm effective



TURRET

Gun Shield: 191mm effective

Front: 191mm effective

Sides: 89mm effective

Rear: 208mm effective

Top: 25mm effective



-----------------------



Statistics of 105mm T5E1 Gun:

65 calibers

6 rounds/minute with two loaders



T32 APBC-T Shot:

135mm @ 30 degrees @ 914m

119mm @ 30 degrees @ 1829m



-------------------



On 14 September 1944, OCM 25117 recommended the development and manufacture of four pilots for a new heavy tank. Two of these were designated as the heavy tank T29 and were to be armed with the 105mm gun T5E1.



The remaining two were designated as the heavy tank T30 and were to be armed with the 155mm gun T7.



Procurement of 1200 T29 tanks was recommended by OCM 26825 on 1 March 1945.



Drawing of T29 Heavy Tank







T29 Specs:



6 man crew

Combat Weight: 70.75 tons



HULL

Upper Front: 174mm effective

Lower Front: 132mm effective

Front Sides: 76mm effective

Rear Sides: 51mm effective

Upper Rear: 52mm effective

Lower Rear: 40mm effective

Top: 38mm effective

Front Floor: 25mm effective

Rear Floor: 13mm effective



TURRET

Gun Shield: 203-279mm effective

Front: 206mm effective

Sides: 127mm effective

Rear: 102mm effective

Top: 38mm effective



105mm Gun T5E2

Loading: Manual (6 rds/min with 2 loaders)

Stablizer: None



Vision:

T143E1 Telescope

M10E5 Periscope



1 x .50 Caliber M2 HB Flexible AA on commanders hatch

2 x .50 Caliber M2 HB Coaxial

1 x .30 Caliber M1919A4 Bow Mount



Ammo Load:

63 Rounds 105mm

2420 rounds .50 Caliber

2500 rounds .30 caliber



-----------------



The 8th T29 built was modified to provide for the installation of the range finder T31E1, and became the T29E3.



Drawing of T29E3 Heavy Tank





Top of T29E3 Heavy Tank



This tank probably has a significantly better rangefinder rating than anything except probably laser rangefinder equipped tanks in game terms, because of the shear size of the rangefinder; the wider the base of the rangefinder, the better and more accurate it is; the T29E3 had a 274.32 cm rangefinder ; while the Panther F had a 132 cm rangefinder, and the Tiger II a 160 cm one.



T29E3 Specs:



6 man crew

Combat Weight: 72 tons

Speed: 22 MPH



HULL

Upper Front: 174mm effective

Lower Front: 132mm effective

Front Sides: 76mm effective

Rear Sides: 51mm effective

Upper Rear: 52mm effective

Lower Rear: 40mm effective

Top: 38mm effective

Front Floor: 25mm effective

Rear Floor: 13mm effective



TURRET

Gun Shield: 203-279mm effective

Front: 206mm effective

Sides: 127mm effective

Rear: 102mm effective

Top: 38mm effective



105mm Gun T5E1

Loading: Manual (6 rds/min with 2 loaders)

Stablizer: None



Vision:

T31E1 Range Finder

T93E2 Telescope

M10E5 Periscope



1 x .50 Caliber M2 HB Flexible AA on commanders hatch

2 x .50 Caliber M2 HB Coaxial

1 x .30 Caliber M1919A4 Bow Mount



Ammo Load:

63 Rounds 105mm

2420 rounds .50 Caliber

2500 rounds .30 caliber



------------------------------------------------------------



The T30 hull was essentially the same as that of the T29 except for the changes to the engine compartment necessary to accommodate a different engine. The turret also was similar to that on the T29.



Drawing of T30 Heavy Tank





Top of T30 Tank



T30 Specs

6 man crew

Combat Weight: 71.3 tons

Speed: 22 MPH



HULL

Upper Front: 174mm effective

Lower Front: 132mm effective

Front Sides: 76mm effective

Rear Sides: 51mm effective

Upper Rear: 52mm effective

Lower Rear: 40mm effective

Top: 38mm effective

Front Floor: 25mm effective

Rear Floor: 13mm effective



TURRET

Gun Shield: 203-279mm effective

Front: 206mm effective

Sides: 127mm effective

Rear: 102mm effective

Top: 38mm effective



155mm Gun T7

Loading: Manual with hoist and spring rammer (2 rds/min with 2 loaders)

Stablizer: None



Vision:

T143E1 Telescope

M10E9 Periscope



1 x .50 Caliber M2 HB Flexible AA on commanders hatch

1 x .50 Caliber M2 HB Coaxial

1 x .30 Caliber M1919A4 Bow Mount



Ammo Load:

34 Rounds 155mm

2200 rounds .50 Caliber

2500 rounds .30 caliber



---------------



Statistics of 155mm T7 Gun:

40 calibers

2 rounds/minute with two loaders



It was never provided with an AP shot as far as I can tell; but I would imagine a 95 pound HE shell would mess up any tank's day; and given the calibre of the gun, a HEAT round from it would be truly terrifying.



-----------------------



Early in 1945, Ordnance undertook design studies to modify the 120mm antiaircraft gun for tank use.



On 17 May 1945, OCM 27662 recommended that two of the T30 pilot tanks be armed with the 120mm gun and redesignated as the heavy tank T34. This action was approved on 31 May.



The T34 pilots were similar in appearance to the T29 and T30 tanks except for the longer barrel of the 120mm gun.



Drawing of T34 Heavy Tank





Frontal view of T34



T34 Specs

6 man crew

Combat Weight: 71.8 tons

Speed: 22 MPH



HULL

Upper Front: 174mm effective

Lower Front: 132mm effective

Front Sides: 76mm effective

Rear Sides: 51mm effective

Upper Rear: 52mm effective

Lower Rear: 40mm effective

Top: 38mm effective

Front Floor: 25mm effective

Rear Floor: 13mm effective



TURRET

Gun Shield: 203 to 279mm effective

Front: 184mm effective

Sides: 127mm effective

Rear: 203mm effective

Top: 38mm effective



120mm Gun T53

Loading: Manual (5 RPM with 2 loaders)

Stablizer: None



1 x .50 Caliber M2 HB Flexible AA on commanders hatch

1 x .50 Caliber M2 HB Coaxial

1 x .30 Caliber M1919A4 Bow Mount



Vision:

T143E2 Telescope

M10E10 Periscope



Ammo Load:

34 Rounds 120mm

2090 rounds .50 Caliber

2500 rounds .30 caliber



----------------------



120mm Gun T53 Specs:

60 Calibers

5 RPM, two loaders



AP Shot:

198mm @ 30 degrees @ 914m

173mm @ 30 deg @ 1829m



HVAP Shot:

381mm @ 30 deg @ 914m

318mm @ 30 deg @ 1829 m



------------------------------



The successful employment of the heavily armored assault tank M4A3E2 in Europe during the Fall of 1944 emphasized the need for greater armor protection. On 7 December 1944, the Army Ground Forces recommended that the Ordnance Department develop a modification of the new Pershing tank with heavier armor and the Army Services Forces directed that immediate action be taken to comply with this request. Two approaches were followed to solve the problem. The first produced essentially a standard Pershing with thicker armor and a lower final drive gear ratio to maintain a reasonable level of mobility.



This vehicle was designated as the heavy (later medium) tank T26E5. A longer range solution was to develop a new tank utilizing as many Pershing components as possible.



OCM 26606, dated 8 February 1945, recommended the construction of four pilots of such a vehicle and designated it as the heavy tank T32. Formal approval of this project was recorded in March.



The design of the new tank proceeded on a high priority basis and by 10 April 1945, a mock-up was almost complete and approximately 80 per cent of the drawings for the first two pilots had been released.



Drawing of T32 Heavy Tank





Top of T32.



T32 Specs

5 man crew

Combat Weight: 60 tons

Speed: 22 MPH



HULL

Upper Front: 216mm effective

Lower Front: 184mm effective

Sides: 76mm effective

Rear: 52mm effective

Top: 38mm effective

Front Floor: 25mm effective

Rear Floor: 13mm effective



TURRET

Gun Shield: 298mm effective

Front: 309mm effective

Sides: 199 to 154mm effective

Rear: 152mm effective

Top: 25mm effective



90mm Gun T15E2

Loading: Manual (4 RPM)

Stablizer: None



1 x .50 Caliber M2 HB Flexible AA on commanders hatch

1 x .30 Caliber M1919A4 Coaxial

1 x .30 Caliber M1919A4 Bow Mount



Ammo Load:

54 Rounds 90mm

550 rounds .50 Caliber

4000 rounds .30 caliber



Vision:

M77E1 or M71E4 Telescope

M10E4 Periscope



--------------------------



90mm T15E1/2 Gun Data:

70 Calibers



Penetration:



T43 AP Shot (APBC-T; 3,200 ft/sec)

132mm @ 30 degree angle @ 500 yds

127mm @ 30 degree angle @ 1000 yds

124mm @ 30 degree angle @ 1500 yds

122mm @ 30 degree angle @ 2000 yds



T44 HVAP Shot (APCR-T; 3,750 ft/sec)

244mm @ 30 degree angle @ 500 yds

221mm @ 30 degree angle @ 1000 yds

196mm @ 30 degree angle @ 1500 yds

173mm @ 30 degree angle @ 2000 yds



------------------



Drawing of T28 Assault Gun





T28/T95 Assault Gun Top View





T28/T95 Assault Gun Top View



Superheavy Tank T28 (105mm GMC T95)

4 man crew

Speed: 4

Combat Weight: 95 tons



HULL

Gun Shield: 292mm effective

Upper Front: 305mm effective

Lower Front: 266mm effective

Upper Sides: 118mm effective

Lower Sides: 152mm effective

Rear: 52mm effective

Top: 38mm effective

Floor: 25mm effective



105mm Gun T5E1

1 x .50 Caliber in AA Mount



Loading: Manual (4 RPM)

Stablizer: None



Ammo Load:

62 Rounds 105mm

660 rounds .50 Caliber



------------------------------------







T26E4 "Super" Pershing

90mm T15E2 (54 rounds)

48 tons combat weight

20 MPH Top Speed



140mm Effective Hull Front

80mm Effective Hull Sides

50mm Effective Hull Rear



120mm Effective Turret Front

80mm Effective Turret Sides

80mm Effective Turret Rear

20mm Top Armor



--------------







T26E5 "Jumbo" Pershing

90mm M3 L52 (70 rounds)

51.15 tons combat weight

20 MPH Top Speed



210mm Effective Hull Front

80mm Effective Hull Sides

50mm Effective Hull Rear



280mm Effective Turret Front

90mm Effective Turret Sides

130mm Effective Turret Rear

30mm Top Armor Our first heavy tank was the M6 series; which was developed in accordance with a requirement from the US Army's Chief of Infantry in 1940 that a 50 or 80 ton heavy tank be built, in light of the German success in France.Funding was allocated for 1,000~ of them, but by 1942, the Army no longer wanted it, with the Commanding General of the Armored Force saying:And so the program was terminated after 40 units had been produced.Top Down View of the M6.Statistics for the M6:6 Man Crew322" Long with Gun Forward123" Wide over Track armor118" High to turret roof63 tons combat weight22 MPH Top Speed3 inch M7 L53 Main Gun (75 rounds)37mm M6 Coaxial (202 Rounds)2 x .50 MGs in a mount in hull front (6900 rounds)1 x .30 BMG (5500 rounds of .30 cal total)1 x .30 cal AAMGStablizer: Elevation OnlyHULLUpper Front: 96mm effectiveLower Front: 102 to 70mm @ 0 to 60 degreesUpper Sides: 47mm effectiveLower Sides: 70mm effectiveRear: 43mm effectiveTop: 25mm effectiveFloor: 25mm effectiveTURRETGun Shield: 102mm effectiveFront: 84mm effectiveSides: 83mm effectiveRear: 83mm effectiveTop: 25mm effective-------------------------Later the Army replaced the 3" gun on a M6 pilot with the 90mm gun later used on the Pershing, due to a feeling that the 3" gun was soon to be inadequate in the anti-tank role. Tests showed it to be a stable platform, but by the time the reports on the tests had been written, the M6 program had been cancelled.-------------After D-Day, a need was felt for a limited number of tanks with thick armor to act as breakthrough units. They proposed taking existing T1E1s left over from the M6 program and modifying them, installing additional frontal armor and installing a new turret carrying a high velocity 105mm gun, and designating the modified tanks as M6A2E1s.It was expected to have the first one delivered by 15 November 1944; but in August of 1944, Eisenhower stated that he didn't want them. Which was probably good, because when tests were carried out on a T1E1 loaded to the expected 77 ton weight, the tank could not climb a 40% slope, effectively limiting it to operating on extremely favorable terrain.Top View of M6A2E1Statistics for the M6A2E1:5 Man Crew440" Long with Gun Forward123" Wide over Track armor137" High to turret roof77 tons combat weight18 MPH Top Speed105mm T5E1 Gun (60 rounds).30 Caliber Coaxial (4000 rounds)1 x .50 cal AAMG (600 rounds)HULLFront: 191mm effectiveUpper Sides: 47mm effectiveLower Sides: 70mm effectiveRear: 44mm effectiveTop: 25mm effectiveFloor: 25mm effectiveTURRETGun Shield: 191mm effectiveFront: 191mm effectiveSides: 89mm effectiveRear: 208mm effectiveTop: 25mm effective-----------------------Statistics of 105mm T5E1 Gun:65 calibers6 rounds/minute with two loadersT32 APBC-T Shot:135mm @ 30 degrees @ 914m119mm @ 30 degrees @ 1829m-------------------On 14 September 1944, OCM 25117 recommended the development and manufacture of four pilots for a new heavy tank. Two of these were designated as the heavy tank T29 and were to be armed with the 105mm gun T5E1.The remaining two were designated as the heavy tank T30 and were to be armed with the 155mm gun T7.Procurement of 1200 T29 tanks was recommended by OCM 26825 on 1 March 1945.T29 Specs:6 man crewCombat Weight: 70.75 tonsHULLUpper Front: 174mm effectiveLower Front: 132mm effectiveFront Sides: 76mm effectiveRear Sides: 51mm effectiveUpper Rear: 52mm effectiveLower Rear: 40mm effectiveTop: 38mm effectiveFront Floor: 25mm effectiveRear Floor: 13mm effectiveTURRETGun Shield: 203-279mm effectiveFront: 206mm effectiveSides: 127mm effectiveRear: 102mm effectiveTop: 38mm effective105mm Gun T5E2Loading: Manual (6 rds/min with 2 loaders)Stablizer: NoneVision:T143E1 TelescopeM10E5 Periscope1 x .50 Caliber M2 HB Flexible AA on commanders hatch2 x .50 Caliber M2 HB Coaxial1 x .30 Caliber M1919A4 Bow MountAmmo Load:63 Rounds 105mm2420 rounds .50 Caliber2500 rounds .30 caliber-----------------The 8th T29 built was modified to provide for the installation of the range finder T31E1, and became the T29E3.Top of T29E3 Heavy TankThis tank probably has a significantly better rangefinder rating than anything except probably laser rangefinder equipped tanks in game terms, because of the shear size of the rangefinder; the wider the base of the rangefinder, the better and more accurate it is; the T29E3 had a 274.32 cm rangefinder ; while the Panther F had a 132 cm rangefinder, and the Tiger II a 160 cm one.T29E3 Specs:6 man crewCombat Weight: 72 tonsSpeed: 22 MPHHULLUpper Front: 174mm effectiveLower Front: 132mm effectiveFront Sides: 76mm effectiveRear Sides: 51mm effectiveUpper Rear: 52mm effectiveLower Rear: 40mm effectiveTop: 38mm effectiveFront Floor: 25mm effectiveRear Floor: 13mm effectiveTURRETGun Shield: 203-279mm effectiveFront: 206mm effectiveSides: 127mm effectiveRear: 102mm effectiveTop: 38mm effective105mm Gun T5E1Loading: Manual (6 rds/min with 2 loaders)Stablizer: NoneVision:T31E1 Range FinderT93E2 TelescopeM10E5 Periscope1 x .50 Caliber M2 HB Flexible AA on commanders hatch2 x .50 Caliber M2 HB Coaxial1 x .30 Caliber M1919A4 Bow MountAmmo Load:63 Rounds 105mm2420 rounds .50 Caliber2500 rounds .30 caliber------------------------------------------------------------The T30 hull was essentially the same as that of the T29 except for the changes to the engine compartment necessary to accommodate a different engine. The turret also was similar to that on the T29.Top of T30 TankT30 Specs6 man crewCombat Weight: 71.3 tonsSpeed: 22 MPHHULLUpper Front: 174mm effectiveLower Front: 132mm effectiveFront Sides: 76mm effectiveRear Sides: 51mm effectiveUpper Rear: 52mm effectiveLower Rear: 40mm effectiveTop: 38mm effectiveFront Floor: 25mm effectiveRear Floor: 13mm effectiveTURRETGun Shield: 203-279mm effectiveFront: 206mm effectiveSides: 127mm effectiveRear: 102mm effectiveTop: 38mm effective155mm Gun T7Loading: Manual with hoist and spring rammer (2 rds/min with 2 loaders)Stablizer: NoneVision:T143E1 TelescopeM10E9 Periscope1 x .50 Caliber M2 HB Flexible AA on commanders hatch1 x .50 Caliber M2 HB Coaxial1 x .30 Caliber M1919A4 Bow MountAmmo Load:34 Rounds 155mm2200 rounds .50 Caliber2500 rounds .30 caliber---------------Statistics of 155mm T7 Gun:40 calibers2 rounds/minute with two loadersIt was never provided with an AP shot as far as I can tell; but I would imagine a 95 pound HE shell would mess up any tank's day; and given the calibre of the gun, a HEAT round from it would be truly terrifying.-----------------------Early in 1945, Ordnance undertook design studies to modify the 120mm antiaircraft gun for tank use.On 17 May 1945, OCM 27662 recommended that two of the T30 pilot tanks be armed with the 120mm gun and redesignated as the heavy tank T34. This action was approved on 31 May.The T34 pilots were similar in appearance to the T29 and T30 tanks except for the longer barrel of the 120mm gun.Frontal view of T34T34 Specs6 man crewCombat Weight: 71.8 tonsSpeed: 22 MPHHULLUpper Front: 174mm effectiveLower Front: 132mm effectiveFront Sides: 76mm effectiveRear Sides: 51mm effectiveUpper Rear: 52mm effectiveLower Rear: 40mm effectiveTop: 38mm effectiveFront Floor: 25mm effectiveRear Floor: 13mm effectiveTURRETGun Shield: 203 to 279mm effectiveFront: 184mm effectiveSides: 127mm effectiveRear: 203mm effectiveTop: 38mm effective120mm Gun T53Loading: Manual (5 RPM with 2 loaders)Stablizer: None1 x .50 Caliber M2 HB Flexible AA on commanders hatch1 x .50 Caliber M2 HB Coaxial1 x .30 Caliber M1919A4 Bow MountVision:T143E2 TelescopeM10E10 PeriscopeAmmo Load:34 Rounds 120mm2090 rounds .50 Caliber2500 rounds .30 caliber----------------------120mm Gun T53 Specs:60 Calibers5 RPM, two loadersAP Shot:198mm @ 30 degrees @ 914m173mm @ 30 deg @ 1829mHVAP Shot:381mm @ 30 deg @ 914m318mm @ 30 deg @ 1829 m------------------------------The successful employment of the heavily armored assault tank M4A3E2 in Europe during the Fall of 1944 emphasized the need for greater armor protection. On 7 December 1944, the Army Ground Forces recommended that the Ordnance Department develop a modification of the new Pershing tank with heavier armor and the Army Services Forces directed that immediate action be taken to comply with this request. Two approaches were followed to solve the problem. The first produced essentially a standard Pershing with thicker armor and a lower final drive gear ratio to maintain a reasonable level of mobility.This vehicle was designated as the heavy (later medium) tank T26E5. A longer range solution was to develop a new tank utilizing as many Pershing components as possible.OCM 26606, dated 8 February 1945, recommended the construction of four pilots of such a vehicle and designated it as the heavy tank T32. Formal approval of this project was recorded in March.The design of the new tank proceeded on a high priority basis and by 10 April 1945, a mock-up was almost complete and approximately 80 per cent of the drawings for the first two pilots had been released.Top of T32.T32 Specs5 man crewCombat Weight: 60 tonsSpeed: 22 MPHHULLUpper Front: 216mm effectiveLower Front: 184mm effectiveSides: 76mm effectiveRear: 52mm effectiveTop: 38mm effectiveFront Floor: 25mm effectiveRear Floor: 13mm effectiveTURRETGun Shield: 298mm effectiveFront: 309mm effectiveSides: 199 to 154mm effectiveRear: 152mm effectiveTop: 25mm effective90mm Gun T15E2Loading: Manual (4 RPM)Stablizer: None1 x .50 Caliber M2 HB Flexible AA on commanders hatch1 x .30 Caliber M1919A4 Coaxial1 x .30 Caliber M1919A4 Bow MountAmmo Load:54 Rounds 90mm550 rounds .50 Caliber4000 rounds .30 caliberVision:M77E1 or M71E4 TelescopeM10E4 Periscope--------------------------90mm T15E1/2 Gun Data:70 CalibersPenetration:T43 AP Shot (APBC-T; 3,200 ft/sec)132mm @ 30 degree angle @ 500 yds127mm @ 30 degree angle @ 1000 yds124mm @ 30 degree angle @ 1500 yds122mm @ 30 degree angle @ 2000 ydsT44 HVAP Shot (APCR-T; 3,750 ft/sec)244mm @ 30 degree angle @ 500 yds221mm @ 30 degree angle @ 1000 yds196mm @ 30 degree angle @ 1500 yds173mm @ 30 degree angle @ 2000 yds------------------T28/T95 Assault Gun Top ViewT28/T95 Assault Gun Top ViewSuperheavy Tank T28 (105mm GMC T95)4 man crewSpeed: 4Combat Weight: 95 tonsHULLGun Shield: 292mm effectiveUpper Front: 305mm effectiveLower Front: 266mm effectiveUpper Sides: 118mm effectiveLower Sides: 152mm effectiveRear: 52mm effectiveTop: 38mm effectiveFloor: 25mm effective105mm Gun T5E11 x .50 Caliber in AA MountLoading: Manual (4 RPM)Stablizer: NoneAmmo Load:62 Rounds 105mm660 rounds .50 Caliber------------------------------------T26E4 "Super" Pershing90mm T15E2 (54 rounds)48 tons combat weight20 MPH Top Speed140mm Effective Hull Front80mm Effective Hull Sides50mm Effective Hull Rear120mm Effective Turret Front80mm Effective Turret Sides80mm Effective Turret Rear20mm Top Armor--------------T26E5 "Jumbo" Pershing90mm M3 L52 (70 rounds)51.15 tons combat weight20 MPH Top Speed210mm Effective Hull Front80mm Effective Hull Sides50mm Effective Hull Rear280mm Effective Turret Front90mm Effective Turret Sides130mm Effective Turret Rear30mm Top Armor