M46 Patton

M46 Patton. The M46 Patton was an American medium tank designed to address the shortcomings of the M26 Pershing in the immediate post-World War II period. It became the first tank to bear the name of the influential United States Army General George S. Patton. Primarily seeing combat during the Korean War, it served as a crucial stopgap before the introduction of the more advanced M47 Patton.

Development and design

The development of the vehicle stemmed from the recognized need to improve the mobility of the M26 Pershing, which utilized a modified powerplant from the M4 Sherman. Engineers at the Detroit Arsenal Tank Plant focused on integrating a new powerpack, mating the more powerful Continental Motors AV-1790 engine with an Allison Division CD-850 cross-drive transmission. This combination significantly improved the tank's power-to-weight ratio and reliability over its predecessor. Other key design changes included a new muffler system, a redesigned engine deck, and the adoption of the M3A1 variant of the 90 mm gun, which featured a bore evacuator. The tank's designation was changed to honor the late George S. Patton following approval by the Department of the Army.

Service history

The primary combat service of the M46 occurred during the Korean War, where it was deployed to counter the T-34-85 tanks fielded by the Korean People's Army and the People's Volunteer Army. It first saw action with units like the 6th Tank Battalion in the summer of 1950, providing crucial fire support during the Battle of Pusan Perimeter. The tank's 90 mm gun proved effective against enemy armor, and its improved mobility was advantageous in the rugged terrain of the Korean Peninsula. However, it faced challenges from more numerous enemy forces and the harsh winter conditions. The M46 was gradually replaced in frontline U.S. service by the M47 Patton and M48 Patton during the mid-1950s, though it remained in use with other nations for several more years.

Variants

* M46: The standard production model. * M46A1: A product-improved version featuring the upgraded CD-850-4 transmission and other minor modifications for enhanced reliability. * M46 (Mine Exploder T4): A limited number fitted with a mine roller device for combat engineering roles. * Several vehicles were used as testbeds for new components, contributing directly to the development of the M47 Patton and future Patton tank series.

Operators

The primary operator was the United States Army, which fielded it in Korea and with stateside units. Through Military Assistance Program agreements, it was also supplied to several allied nations. These included Belgium, which integrated them into its forces as part of NATO; France, which used them during the latter stages of the First Indochina War; and Italy. Other recipients were Japan, under the early formation of the Japan Ground Self-Defense Force, and South Korea, which received them as aid to build its armored capabilities after the Korean War Armistice Agreement.

Specifications

The M46 Patton had a combat weight of approximately 48.5 tons and was operated by a crew of five. Its main armament was the 90 mm M3A1 gun, capable of firing a variety of armor-piercing and high-explosive rounds. Secondary armament consisted of two .30 caliber M1919 Browning machine guns and a .50 caliber M2 Browning machine gun for anti-aircraft defense. The Continental Motors AV-1790-5B gasoline engine produced 810 horsepower, propelling the tank to a top road speed of 30 mph. Its torsion bar suspension provided a stable firing platform, and maximum armor thickness was 102 mm on the gun mantlet.

Category:Medium tanks of the United States Category:Patton tanks Category:Cold War tanks of the United States Category:Korean War tanks Category:Vehicles introduced in 1949