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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.7 They each were geared to a single prop shaft.7

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.1,7 The Russians didn't like the high silhouette, thin armor, and poorly angled armor.1 Called the Sherman II by the British.1

Specifications

  M4A2 medium tank2, Sherman III6
Crew 52,4,8
Radio SCR-5082
Radio - command tank SCR-5062
Physical Characteristics  
Weight 69,000 lb2,3,4,8
31,360 kg8
Length w/gun 19' 4"8, 19' 5"2,4
5.9 m8
Height 9'2,3,4,8
2.74 m8
Width 8' 7"2,3,4,8
2.6 m8
Width over tracks  
Ground clearance 17 1/8"2
Ground contact length 12' 3"2
Ground pressure 14.2 psi2
Turret ring diameter  
Armament  
Main 75 mm4,8
75 mm M33
Secondary  
MG 3: MG4
MG - coaxial 1: .30 cal Browning M1919A4 MG2
1: 7.62 mm MG8
MG - hull 1: .30 cal Browning M1919A4 MG2
MG - antiaircraft 1: .50 cal MG3
1: .50 cal M2 HB MG2
1: 12.7 mm MG8
Side arms 2" M3 Mortar2
.45 cal submachine gun2
Quantity  
Main 972,3
Secondary  
MG .30: 4,7502,3
.50: 3002
Side arms .45: 6002
Mortar: 122 (4: Fragmentation Mk III, 4: M8 Smoke, 2: M2 Offensive Mk III, 2: Thermite)2
Armor Thickness (mm) 1" - 2"4
123, 13 - 1055, 15 - 768
Hull Front, Upper 2"2
503
Hull Front, Lower 1.5" - 2"2
Hull Sides, Upper 1.5" - 2"2
Hull Sides, Lower 1.5" - 2"2
Hull Rear 1.5"2
Hull Top 1"2
Hull Bottom 0.5" - 1"2
Turret Front 3"2
753
Turret Sides 2"2
Turret Rear  
Turret Top 1"2
Engine (Make / Model) GM 6-71 6046, Twin General Motors 6-714,5,8, 2: General Motors 60467, General Motors 6-71 60462
Bore / stroke  
Cooling Water4
Cylinders 124
Capacity  
Net HP 375@2,100 rpm2, 4104, 4205, 5008
Power to weight ratio  
Compression ratio  
Transmission (Type) Mechanical syncromesh2
Steering  
Steering ratio 1.515:12
Starter  
Electrical system 24 volt2
Ignition  
Gear ratio - 1st gear 7.56:12
- 2nd gear 3.11:12
- 3rd gear 1.78:12
- 4th gear 1.11:12
- 5th gear 0.73:12
- Reverse 5.65:12
Fuel (Type) Diesel2,4,5,7,8
Cetane 502
Quantity 148 gallons2, 175 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°3
Speed - Road 29 mph2,4,8
46.4 km8
Speed - Cross Country  
Range - Road 100 miles8
161 km8
Range - Cross Country  
Turning radius  
Elevation limits -10° to +25°3
Fording depth 3'3,8, 3' 4"2
0.9 m8
Trench crossing 7' 5"2,3,8
2.26 m8
Vertical obstacle 2'2,3,8
0.61 m8
Climbing ability 60%2
Suspension (Type) Vertical volute.3
Wheels each side  
Wheel size 20" x 9"2
Wheel size - idler 28 1/8" x 9"2
Return rollers each side  
Tracks (Type) Rubber block2
Length  
Width 16.5"2,3
Number of links 792
Pitch 6"2
Tire tread  
Track centers/tread 6' 11"2,3
  M4A2 (76 mm), Sherman IIIA
Crew Commander, gunner, loader, driver, co-driver/hull gunner.3
53,4
Radio  
Physical Characteristics  
Weight 72,800 lb4
Length w/gun 20' 8"4, 24' 3"3, 24' 7"
Length w/o gun 20' 4"3, 20' 8"
Height 9' 9"3,4
Width 8' 9.5"4
Width over tracks  
Ground clearance  
Ground contact length  
Ground pressure 14.9 psi
Turret ring diameter  
Armament  
Main 76 mm3,4
Secondary  
MG 3: MG4
MG - coaxial  
MG - hull  
MG - antiaircraft  
Side arms  
Quantity  
Main 713
Secondary  
MG .30: 6,2503
Side arms  
Armor Thickness (mm) 123, 623
1.5" - 2"4
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 6-714
Bore / stroke  
Cooling Water4
Cylinders 124
Capacity  
Net HP 4104
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) Diesel4
Cetane  
Quantity 148 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°3
Speed - Road 29 mph4
Speed - Cross Country  
Range - Road 100 miles
Range - Cross Country  
Turning radius  
Elevation limits -10° to +25°3
Fording depth 3'3, 3' 4"
Trench crossing 7' 6"3
Vertical obstacle 2'3
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"3

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