M3A2 Medium Tank
Aberdeen Tank Museum
All welded hull.1,8,12 Baldwin started production but after 12, a new engine was installed, became M3A3.
| M3A2, Lee III | |
|---|---|
| Crew | Commander, driver, loaders(2), gunners(2).4 64,5,6,10,12 |
| Physical Characteristics | |
| Weight | 60,000 lb5,10, 61,780 lb12 27,900 kg 27.24 tons6 |
| Length w/gun | 18' 6"4,5,6,10,12 5.64 m6 |
| Length w/o gun | |
| Height | 10' 3"4,5,6,10,12 3.12 m6 |
| Width | 8' 11"4,5,6,10,12 2.72 m6 |
| Ground clearance | 17 1/8"10,12 |
| Ground contact length | 147"10,12 |
| Ground pressure | 12.9 psi, 13.25 psi12, 13.36 psi10 |
| Turret ring diameter | 57"10 |
| Armament | |
| Main | 75 mm M2 or M34 75 mm5 75 mm M2, gyrostabilized12 |
| Secondary | 37 mm M5 or M64 37 mm 5 37 mm M612 |
| MG | 3-4: .30 cal Browning MGs4 3: MG5 4: .30 cal M1919A4 MG, coaxial, cuploa, fixed bow (2)12 |
| Side arms | Hand grendades12 |
| Quantity | |
| Main | 464,12 |
| Secondary | 1784,12 |
| MG | 9,2004,12 |
| Side arms | Grenades: 1212 |
| Armor Thickness (mm) | 124, 374 1.5" - 2"5 |
| Hull Front, Upper | 2"@0°12 |
| Hull Front, Lower | |
| Hull Sides, Upper | 1.5"@0°12 |
| Hull Sides, Lower | |
| Hull Rear | 1.5"@0°12 |
| Hull Top | |
| Hull Bottom | |
| Turret Front | 2.25"@0°12 |
| Turret Sides | 2.25"@0°12 |
| Turret Rear | |
| Turret Top | |
| Engine (Make / Model) | Continental R-975-EC26,10,12 Continental R-975-C110 Continental R-9755 |
| Cooling | Air10,12 |
| Cylinders | 95,10, R-912 |
| Net HP | 3405,6,12 340@2,40010 |
| Transmission (Type) | Synchromesh12 5 forward, 1 reverse12 |
| Steering | Controlled differential12 |
| Starter | |
| Electrical system | |
| Ignition | |
| Fuel (Type) | Gasoline6,10,12 |
| Octane | 8010, 9210 |
| Capacity | 175 gallons10,12 796 liters |
| Fuel consumption - Road | |
| Fuel consumption - Cross country | |
| Power to Weight Ratio | |
| Performance | |
| Traverse | 37 mm: 360°4,12, power or manual12 75 mm: 15° left, 15° right4,12 |
| Max Speed | 25 mph12, 26 mph4,5,6,10 34 kph, 42 kph6 |
| Cross Country speed | 16 mph4 |
| Road radius | 120 miles4,6,10,12 193 km6 |
| Cross country radius | |
| Turning Radius | 37'10 18.9 m |
| Elevation Limits | 75 mm: -9° to +20°4,12 37 mm: -7° to +60°4,12 |
| Fording depth | 3' 4"4,6,10,12 1.02 m6 |
| Trench crossing | 6' 2"10,12, 6' 3"4,6 1.91 m6 |
| Vertical Obstacle | 2'4,6,10,12 0.61 m6 |
| Climbing ability | 30° slope12 |
| Suspension (Type) | 3: Vertical Volute bogies8 Vertical volute springing12 |
| Wheels each side | 3 two wheeled bogies12 |
| Return rollers each side | 312 |
| Tracks (Type) | Steel blocks with rubber pads, rubber bushed track pins12 |
| Length | |
| Width | 16"12, 16.5"4 |
| Number of Links | 7912 |
| Pitch | 6"12 |
| Tire Tread | |
| Track centers/tread | 81"12, 6' 11"4,10 |
Sources:
- 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
- Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1933-1942, Thomas L. Jentz, 1996
- Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1943-1945, Thomas L. Jentz, 1996
- 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
- Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
- The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
- Jane's World War II Tanks and Fighting Vehicles The Complete Guide, Leland Ness, 2002
- Tanks of World War II, Duncan Crow, 1979
- Battle Winning Tanks, Aircraft & Warships of World War II, David Miller, 2000
- AFV 11: M3 Medium (Lee/Grant), Peter Chamberlain and Chris Ellis
- Tank Data, Aberdeen Proving Grounds Series, 1968?
- Tank Data 2, Aberdeen Proving Grounds Series, E. J. Hoffschmidt and W. H. Tantum IV, 1969
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