World War II Vehicles, Tanks and Airplanes, picture of P-51 Mustang
World War II Vehicles, Tanks and Airplanes, picture of T-34/85
World War II Vehicles, Tanks and Airplanes, picture of Fw-190
World War II Vehicles, Tanks and Airplanes, picture of Churchill
wwiivehicles.com ©2016
Search:
United States' flag

United States' M2A3 light tank

Photos

M2A3 Light Tank:
United States' M2A3 Light Tank
Aberdeen Tank Museum
M2A3 Light Tank:
United States' M2A3 Light Tank
Aberdeen Tank Museum

Design

Twin turrets.1,8 Improved suspension, thicker armor, increased gear ratios, better engine cooling. The .50 cal had a muzzle velocity of 2,840'/sec when firing a 710 grain shell.6 It could fire 400-500 rounds/minute.6 The .30 cal could fire 500 rounds/minute.6

The suspension was improved by adding a trailing idler.8

Specifications

  M2A3
Crew Commander, driver, co-driver, gunner.2
42,3,6,7
Physical Characteristics  
Weight 19,460 lb7, 20,000 lb2
9.5 tons3, 10 tons6
Length 14' 6"2,6, 14' 6.5"3, 14' 7"7
Height 6' 6"7, 7.4'6, 7' 4"2, 7' 5"3
Width 7' 9.25"3, 8' 1.25"2, 8.2'6, 8' 4"7
Width over tracks  
Ground clearance 14.5"6
Ground contact length 97"6,7
Ground pressure 9 psi6, 13.75 psi7
Turret ring diameter  
Armament  
Main 37 mm
3: MG3
Left turret: .50 cal MG6
Left turret: .50 cal HB M5 MG7
Secondary Right turret: .30 cal M1919A4 MG6,7
MG .30 cal M1919A4 MG, hull6,7
Side arms  
Quantity  
Main .1,5796
Secondary 2,3806
MG 7,1852
Side arms  
Armor Thickness (mm) 62, 162
5/8" - 7/8"3
Front: 0.9"6
Side: 0.6"6
Hull Front, Upper 0.875"@0°7
Hull Front, Lower  
Hull Sides, Upper 0.625"@0°7
Hull Sides, Lower  
Hull Rear 0.375"@0°7
Hull Top  
Hull Bottom  
Turret Front 0.9"6, 0.875"@0°7
Turret Sides 0.625"@0°7
Turret Rear  
Turret Top  
Engine (Make / Model) Continental W-6702
Continental Radial3
Continental WG706,7
Bore / stroke  
Cooling Air3,6,7
Cylinders R-76,7
Capacity  
Net HP 2503,7, 250@2,400 rpm6
Power to weight ratio  
Compression ratio 6:16
Transmission (Type) Manual
Synchromesh6,7
5 forward, 1 reverse6,7
Steering Controlled differential6,7
Steering ratio  
Starter Hand electric inertia, direct electric, and cartridge starter6
Electrical system 12-volt6
Ignition Magneto6
Fuel (Type) Gasoline6,7
Octane  
Quantity 54 gallons6,7
Road consumption 1.5 mpg7, 2.4 mpg6
Cross country consumption  
Performance  
Traverse 360°2
Each turret 180°6
Hand6
Speed - Road 25-30 mph2, 38 mph3,6,7
Speed - Cross Country 18 mph2, 25 mph3, 25.7 mph6
Range - Road 125 miles7, 130 miles2,6
Range - Cross Country  
Turning radius  
Elevation limits -10° to +20°2
Fording depth 3' 6"7, 3' 8"2
Trench crossing 6'2
Vertical obstacle 2'2
Climbing ability 25° slope7
26° (50%) slope6
Suspension (Type) Vertical volute2, Volute spring6, Vertical volute spring7
Wheels each side 46 , 2 double wheel bogies7
Return rollers each side 26,7
Tracks (Type) Dry pin, double pin per shoe, rubber cleat6
Steel rubber bushed pins, rubber pads7
Length  
Width 7 5/8"2, 11.6"6, 11 5/8"7
Diameter  
Number of links 666,7
Pitch 5.5"6,7
Tire tread Rubber7
Track centers/tread 6.1'6, 6' 1"2,7

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. -
  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