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United States' M2A2 light tank

Design

Twin turrets. Nicknamed "Mae West."

Variants

  • M2A2E3: Had trailing idler. Some were used in Burma. The .50 cal had a muzzle velocity of 2,840'/sec when firing a 710 grain shell.

Specifications

  M2A2
Crew Commander, driver, co-driver, gunner.
4
Physical Characteristics  
Weight 19,100 lb
Length 13' 7"
Height 7' 4", 7' 9"
Width 8' 1.25", 7' 10"
Width over tracks  
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 37 mm
3: MG
Secondary  
MG .50 cal
Side arms  
Quantity  
Main  
Secondary  
MG 2,137
Side arms  
Armor Thickness (mm) 6, 16
0.5" - 5/8"
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) Continental W-670
E3: Guiberson T1020
Continental Radial
Bore / stroke  
Cooling Air
Cylinders  
Capacity  
Net HP 250
Power to weight ratio  
Compression ratio  
Transmission (Type) Manual
Steering  
Steering ratio  
Starter  
Electrical system  
Ignition  
Fuel (Type)  
Octane  
Quantity  
Road consumption  
Cross country consumption  
Performance  
Traverse 360°
Speed - Road 25-30 mph, 45 mph
Speed - Cross Country 18 mph, 20 mph
Range - Road 130 miles
Range - Cross Country  
Turning radius  
Elevation limits -10° to +20°
Fording depth 3' 8"
Trench crossing 6'
Vertical obstacle 2'
Climbing ability  
Suspension (Type) Vertical volute.
Wheels each side  
Return rollers each side  
Tracks (Type)  
Length  
Width 7 5/8"
Diameter  
Number of links  
Pitch  
Tire tread  
Track centers/tread 6' 1"
  M2A2E3
Crew 4
Physical Characteristics  
Weight 10.6 tons
Length 12.1'
Height 6.9'
Width 8.1'
Width over tracks  
Ground clearance 16"
Ground contact length 126.5"
Ground pressure 7.3 psi
Turret ring diameter  
Armament  
Main Left Turret: .50 cal M2 MG
Secondary Right Turret: .30 cal M1919A4 MG
MG .30 cal M1919A4 MG, hull
Side arms  
Quantity  
Main 2,137
Secondary 7,185
MG  
Side arms  
Armor Thickness (mm) Front: 1"
Side: 0.6"
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front 0.6"
Turret Sides 0.25"
Turret Rear  
Turret Top  
Engine (Make / Model) G.M.
Bore / stroke  
Cooling Water
Cylinders 6
Capacity  
Net HP 165@2,000 rpm
Power to weight ratio  
Compression ratio 16:1
Transmission (Type) Fully automatic
4 forward, 1 reverse
Steering Controlled differential
Steering ratio  
Starter  
Electrical system  
Ignition Injection
Fuel (Type)  
Octane  
Quantity 75 gallons
Road consumption 3.12 mpg
Cross country consumption  
Performance  
Traverse Hand
Speed - Road 30 mph
Speed - Cross Country 5-20 mph
Range - Road 234 miles
Range - Cross Country  
Turning radius  
Elevation limits  
Fording depth  
Trench crossing  
Vertical obstacle  
Climbing ability 22° (40%) slope
Suspension (Type) Vertical volute
Wheels each side 4
Return rollers each side 3
Tracks (Type) Rubber block, double pin shoe (T16E4)
Length  
Width 11.5"
Diameter  
Number of links 72
Pitch 5.5"
Tire tread  
Track centers/tread 6.4'

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. 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
  3. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  4. World War I and II Tanks, George Forty, 2012
  5. Tanks of World War II, Duncan Crow, 1979
  6. Tank Data, Aberdeen Proving Grounds Series, 1968?
  7. Tank Data 2, Aberdeen Proving Grounds Series, E. J. Hoffschmidt and W. H. Tantum IV, 1969
  8. Airfix Magazine Guide #26 American Tanks of World War 2, Terry Gander and Peter Chamberlain, 1977
20th Century American Military History Crucial Site