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United States' M4A2 medium tank, Sherman

Photos

60331:
Dragon Armor 1/72 Diecast Armor 60331, United States' M2A2
60360:
Dragon Armor 1/72 Diecast Armor, 60360, Soviet M4A2(76)W

Design

Standardized in December 1941.

Welded hull. Some early vehicles had spoke wheels. Used only by USMC and Lend Lease. Had the General Motors 6-71 6046 motor. The engine was two GM truck engines, each mounted on each side of the engine compartment. They each were geared to a single prop shaft.

Production

  • M4A2:
    • Manufacturers: Federal Machine and Welding Co., Fisher Tank Division, General Motors Corp., and Pullman Standard Car Manufacturing Co.

Variants

  • M4A2 (76mm): Welded hull. GM diesel 6-71.
    76 mm gun replaced 75 mm in turret. It had better velocity and thus armor penetration. 2,600 ft/sec, range of 16,100 yards, penetrate 4 inches at 1,000 yards. Gun can also be used in indirect fire mode as an azimuth indicator and elevation quadrant was also available. Water protected ammo racks installed.
    The commander had a vision cupola mounted above the turret hatch. It had 6 prismatic vision blocks of 3" laminated bullet-resistant glass.
    The ammunition racks were water protected and there was a traveling lock for the main armament in the front to hold it while traveling in non-combat areas.
  • Tank Recovery Vehicle M32B2: Based on M4A2.

Usage

Sent to Russia and used by US Marine Corps. The Russians didn't like the high silhouette, thin armor, and poorly angled armor. Called the Sherman II by the British.

Specifications

  M4A2 medium tank, Sherman III
Crew 5
Radio SCR-508
Radio - command tank SCR-506
Physical Characteristics  
Weight 69,000 lb
31,360 kg
Length w/gun 19' 4", 19' 5"
5.9 m
Height 9'
2.74 m
Width 8' 7"
2.6 m
Width over tracks  
Ground clearance 17 1/8"
Ground contact length 12' 3"
Ground pressure 14.2 psi
Turret ring diameter  
Armament  
Main 75 mm
75 mm M3
Secondary  
MG 3: MG
MG - coaxial 1: .30 cal Browning M1919A4 MG
1: 7.62 mm MG
MG - hull 1: .30 cal Browning M1919A4 MG
MG - antiaircraft 1: .50 cal MG
1: .50 cal M2 HB MG
1: 12.7 mm MG
Side arms 2" M3 Mortar
.45 cal submachine gun
Quantity  
Main 97
Secondary  
MG .30: 4,750
.50: 300
Side arms .45: 600
Mortar: 12 (4: Fragmentation Mk III, 4: M8 Smoke, 2: M2 Offensive Mk III, 2: Thermite)
Armor Thickness (mm) 1" - 2"
12, 13 - 105, 15 - 76
Hull Front, Upper 2"
50
Hull Front, Lower 1.5" - 2"
Hull Sides, Upper 1.5" - 2"
Hull Sides, Lower 1.5" - 2"
Hull Rear 1.5"
Hull Top 1"
Hull Bottom 0.5" - 1"
Turret Front 3"
75
Turret Sides 2"
Turret Rear  
Turret Top 1"
Engine (Make / Model) GM 6-71 6046, Twin General Motors 6-71, 2: General Motors 6046, General Motors 6-71 6046
Bore / stroke  
Cooling Water
Cylinders 12
Capacity  
Net HP 375@2,100 rpm, 410, 420, 500
Power to weight ratio  
Compression ratio  
Transmission (Type) Mechanical syncromesh
Steering  
Steering ratio 1.515:1
Starter  
Electrical system 24 volt
Ignition  
Gear ratio - 1st gear 7.56:1
- 2nd gear 3.11:1
- 3rd gear 1.78:1
- 4th gear 1.11:1
- 5th gear 0.73:1
- Reverse 5.65:1
Fuel (Type) Diesel
Cetane 50
Quantity 148 gallons, 175 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°
Speed - Road 29 mph
46.4 km
Speed - Cross Country  
Range - Road 100 miles
161 km
Range - Cross Country  
Turning radius  
Elevation limits -10° to +25°
Fording depth 3', 3' 4"
0.9 m
Trench crossing 7' 5"
2.26 m
Vertical obstacle 2'
0.61 m
Climbing ability 60%
Suspension (Type) Vertical volute.
Wheels each side  
Wheel size 20" x 9"
Wheel size - idler 28 1/8" x 9"
Return rollers each side  
Tracks (Type) Rubber block
Length  
Width 16.5"
Number of links 79
Pitch 6"
Tire tread  
Track centers/tread 6' 11"
  M4A2 (76 mm), Sherman IIIA
Crew Commander, gunner, loader, driver, co-driver/hull gunner.
5
Radio  
Physical Characteristics  
Weight 72,800 lb
Length w/gun 20' 8", 24' 3", 24' 7"
Length w/o gun 20' 4", 20' 8"
Height 9' 9"
Width 8' 9.5"
Width over tracks  
Ground clearance  
Ground contact length  
Ground pressure 14.9 psi
Turret ring diameter  
Armament  
Main 76 mm
Secondary  
MG 3: MG
MG - coaxial  
MG - hull  
MG - antiaircraft  
Side arms  
Quantity  
Main 71
Secondary  
MG .30: 6,250
Side arms  
Armor Thickness (mm) 12, 62
1.5" - 2"
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) GM 6-71 6046, GM Twin 6-71
Bore / stroke  
Cooling Water
Cylinders 12
Capacity  
Net HP 410
Power to weight ratio  
Compression ratio  
Transmission (Type)  
Steering  
Steering ratio  
Starter  
Electrical system  
Ignition  
Gear ratio - 1st gear  
- 2nd gear  
- 3rd gear  
- 4th gear  
- 5th gear  
- Reverse  
Fuel (Type) Diesel
Cetane  
Quantity 148 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°
Speed - Road 29 mph
Speed - Cross Country  
Range - Road 100 miles
Range - Cross Country  
Turning radius  
Elevation limits -10° to +25°
Fording depth 3', 3' 4"
Trench crossing 7' 6"
Vertical obstacle 2'
Climbing ability  
Suspension (Type)  
Wheels each side  
Wheel size  
Wheel size - idler  
Return rollers each side  
Tracks (Type)  
Length  
Width  
Number of links  
Pitch  
Tire tread  
Track centers/tread 6' 11"

Sources:

  1. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  2. The American Arsenal, 1996
  3. British and American Tanks of World War Two, The Complete Illustrated History of British, American, and Commonwealth Tanks 1933-1945, Peter Chamberlain and Chris Ellis, 1969
  4. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  5. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
  6. Airfix Magazine Guide #26 American Tanks of World War 2, Terry Gander and Peter Chamberlain, 1977
  7. Tanks of World War II, Duncan Crow, 1979
  8. Armored Fighting Vehicles, 300 of the World's Greatest Military Vehicles, Philip Trewhitt, 1999
20th Century American Military History Crucial Site