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| Sherman tank (M4) | |
|---|---|
| Name | Sherman tank (M4) |
| Origin | United States |
| Type | Medium tank |
| Service | 1942–1957 (US), longer in other states |
| Wars | World War II, Korean War, Arab–Israeli conflicts, First Indochina War |
| Designer | United States Army Ordnance Department |
| Manufacturer | Ford Motor Company, General Motors, Chrysler Corporation, American Locomotive Company |
| Produced | 1942–1945 |
| Number | ~49,234 (all variants) |
| Weight | 30–36 short tons |
| Length | ~19 ft (hull) |
| Width | ~8.7 ft |
| Height | ~9 ft |
| Primary armament | 75 mm or 76 mm gun, 105 mm howitzer (various) |
| Secondary armament | .30-06 Browning M1919, .50 cal Browning M2 |
| Engine | Continental R975 radial gasoline, Ford GAA V8 (selected models) |
| Suspension | Vertical Volute Spring Suspension (VVSS) or Horizontal Volute Spring Suspension (HVSS) |
| Speed | up to 30–35 mph (road) |
Sherman tank (M4) The Sherman tank (M4) was the primary medium tank fielded by the United States Army and United States Marine Corps during World War II and served widely with Allied and postwar states. Designed for mass production, mechanical reliability, and ease of maintenance, the Sherman balanced American manufacturing with expeditionary logistics and inter-Allied interoperability. Its widespread use influenced tactics in theaters including North African Campaign, Italian Campaign, and Normandy.
Development began under the auspices of the United States Army Ordnance Department and was accelerated by requirements emerging from Fall of France and early Eastern Front reports. Influences included prewar studies at Rock Island Arsenal, design work by Marmon-Herrington, and experience from armored doctrines promoted by figures such as Adna R. Chaffee Jr. and George S. Patton. The design emphasized a balance among firepower, protection, and mobility acceptable to the War Department, while incorporating industrial practices from Ford Motor Company, General Motors, and Chrysler Corporation to meet production targets set by Arthur W. Radford-era planners and wartime procurement offices. Early design decisions—hull layout, three-man turret concept, and use of a radial aircraft engine—reflected compromises between tactical requirements voiced by Combined Chiefs of Staff members and engineering constraints from suppliers like Continental Motors Company.
Production programs were coordinated by the United States War Production Board and executed across multiple plants including Fisher Body, American Locomotive Company, and Marmon-Herrington. High-volume assembly lines exploited techniques developed by Henry Ford and adapted for armored vehicles, producing approximately 49,000 Shermans across versions such as the M4, M4A1, M4A2, M4A3, and M4A4. Lend-Lease deliveries extended use to Soviet Union, United Kingdom, Free French Forces, and China. Variant families included differences in hull casting, engines (Continental R975, General Motors 6046, Ford GAA), and armament packages later standardized under agencies like the Army Ground Forces. Specialized versions—dugout-clearing, mine-clearing, bridgelayer, and flamethrower tanks—were produced to meet challenges encountered in campaigns from Tunisia Campaign to Operation Overlord.
Shermans entered frontline service with British Eighth Army in North Africa and with United States Fifth Army in Sicily. In the European Theater, Shermans participated in operations from Operation Torch through Battle of the Bulge, supporting infantry from formations including 101st Airborne and 2nd Canadian Infantry Division. On the Eastern Front, Lend-Lease Shermans served with Red Army units during late-war offensives. Postwar, Shermans fought in the Korean War, First Indochina War, and Arab–Israeli conflicts where versions upgraded by Israel Defense Forces saw extensive action. Operational experience shaped Allied combined arms doctrine alongside units like British Armoured Corps and U.S. Armored Corps.
Primary armament evolved from the 75 mm M3 gun to the higher-velocity 76 mm M1 and the 105 mm M4 howitzer in assault variants, reflecting threat assessments influenced by encounters with Panzer IV, Panzer V Panther, and Tiger I armor in engagements such as Battle of Kursk and Battle of Normandy. Secondary armament typically included the .30-06 Browning M1919 and the .50 cal Browning M2 for anti-air and anti-personnel defense; commanders often mounted additional machine guns to counter entrenchments encountered in operations like Operation Cobra. Armor thickness varied across models and was augmented by appliqué plates and field modifications during actions in Sicily and Italy; sloped glacis and cast turrets on certain variants affected ballistic performance against German anti-tank guns such as the Pak 40.
Mobility derived from choices of powerplants—Continental R975 radial engine, General Motors twin-diesel arrangements, and Ford GAA V8—coupled with suspension changes from VVSS to HVSS to improve ride and track life. Transmission designs, final drives, and cooling systems were standardized to maintain logistics compatibility across supply chains influenced by United States Transportation Corps planning. Road speeds enabled rapid exploitation in advances like Operation Cobra, while cross-country performance was leveraged in terrain from Sicily to Korean Peninsula. Maintenance practices developed by units such as Red Ball Express-supported formations emphasized field-replaceable components and recovery tactics using vehicles like the M31 Tank Recovery Vehicle.
Combat experience drove field improvisations and factory upgrades. British workshops at Bicester and Faversham fitted Shermans with the 17-pounder to create the Sherman Firefly equivalent modifications, while American crews improvised additional applique armor, over-turned tracks for belly protection, and added sandbags or concrete for urban defense as seen in Battle of Ortona. Allied ordnance sections authorized kits to fit HVSS bogies, 76 mm guns, and flamethrower systems produced by companies linked to Crosley and CWS (Chemical Warfare Service). National programs in Israel and India later re-engined, up-gunned, and reconfigured electronics for postwar roles.
The Sherman influenced postwar armored thought in organizations like North Atlantic Treaty Organization planners and affected tank development in countries including United Kingdom, France, Israel, and Soviet Union observers. Museums and memorials preserving Shermans include collections at Imperial War Museum, National Infantry Museum, and numerous battlefield parks at Normandy American Cemetery and Memorial and Overloon War Museum. Surviving Shermans appear at commemorations, private collections, and in film productions depicting World War II; veterans’ groups and historical trusts continue restoration efforts to maintain units for education about campaigns such as Operation Overlord and Battle of the Bulge.
Category:Tanks of the United States Category:World War II tanks Category:Armoured fighting vehicles of the Cold War