M26 Pershing
   HOME

TheInfoList



OR:

The M26 Pershing was a
heavy tank Heavy tank is a term used to define a class of tanks produced from World War I through the end of the Cold War. These tanks generally sacrificed mobility and maneuverability for better armour protection and equal or greater firepower than tanks ...
/
medium tank A medium tank is a classification of tanks, particularly prevalent during World War II which represented a compromise between the mobility oriented light tanks and the armour and armament oriented heavy tanks. A medium tank's classification is ...
of the
United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, ...
. It was used in the last months of World War II during the Invasion of Germany and extensively during the
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
. The tank was named after
General of the Armies General of the Armies of the United States, more commonly referred to as General of the Armies, is the highest military rank in the United States Army. The rank has been conferred three times: to John J. Pershing in 1919, as a personal accola ...
John J. Pershing, who led the
American Expeditionary Force The American Expeditionary Forces (A. E. F.) was a formation of the United States Army on the Western Front of World War I. The A. E. F. was established on July 5, 1917, in France under the command of General John J. Pershing. It fought along ...
in Europe in
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
. The M26 was intended as a replacement of the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
, but a prolonged development period meant that only a small number saw combat in Europe. Based on the criteria of firepower, mobility, and protection, US historian R. P. Hunnicutt ranked the Pershing behind the German
Tiger II The Tiger II is a German heavy tank of the Second World War. The final official German designation was ''Panzerkampfwagen'' Tiger ''Ausf''. B,''Panzerkampfwagen'' – abbr: ''Pz.'' or ''Pz.Kfw.'' (English: " armoured fighting vehicle"), ''Ausf.' ...
heavy tank, but ahead of the
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
heavy and
Panther Panther may refer to: Large cats * Pantherinae, the cat subfamily that contains the genera ''Panthera'' and ''Neofelis'' **'' Panthera'', the cat genus that contains tigers, lions, jaguars and leopards. *** Jaguar (''Panthera onca''), found in S ...
medium tanks. It was withdrawn in 1951 in favor of its improved derivative, the
M46 Patton The M46 Patton is an American medium tank designed to replace the M26 Pershing and M4 Sherman. It was one of the U.S Army's principal medium tanks of the early Cold War, with models in service from 1949 until the mid-1950s. It was not widely ...
, which had a more powerful and reliable engine and advanced suspension. The lineage of the M26 continued with the
M47 Patton The M47 Patton was an American main battle tank, a development of the M46 Patton mounting an updated turret, and was in turn further developed as the M48 Patton. It was the second American tank to be named after General George S. Patton, comm ...
, and was reflected in the new designs of the later
M48 Patton The M48 Patton is an American first-generation main battle tank (MBT) introduced in February 1952, being designated as the 90mm Gun Tank: M48. It was designed as a replacement for the M26 Pershing, M4 Sherman, M46 and M47 Patton tanks, and w ...
and
M60 Patton The M60 is an American second-generation main battle tank (MBT). It was officially standardized as the Tank, Combat, Full Tracked: 105-mm Gun, M60 in March 1959. Although developed from the M48 Patton, the M60 tank series was never officially ...
.


Production history


Development

The M26 was the culmination of a series of medium tank prototypes that began with the T20 in 1942, and it was a significant design departure from the previous line of U.S. Army tanks that had ended with the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
. Several design features were tested in the prototypes. Some of these were experimental dead-ends, but many become permanent characteristics of subsequent U.S. Army tanks.Hunnicutt 1996, p.49–121. This series of prototype vehicles began as medium tank project that was similar to, but more modern than the recently-introduced M4 Sherman, and ended several years later as the U.S. Army's first operational "heavy" tank.


Improving on the M4

The U.S. Army's first lineage of tanks evolved from the M1 Combat Car and progressed to the M2 Light Tank, M2 Medium Tank,
M3 Lee The M3 Lee, officially Medium Tank, M3, was an American medium tank used during World War II. The turret was produced in two forms, one for US needs and one modified to British requirements to place the radio next to the commander. In British C ...
, and finally the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
. These tanks all had rear-mounted Continental air-cooled radial
aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years ma ...
s and a front
sprocket A sprocket, sprocket-wheel or chainwheel is a profiled wheel with teeth that mesh with a chain, track or other perforated or indented material. The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain pas ...
drive. This layout required a driveshaft to pass under the turret, which increased the overall height of the tank, a characteristic shared with German tanks of World War II that also used this layout.Foss 2002, pp. 232–246.Jentz 1995, pp. 14–18. In the case of designs for the
Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with Sonderkraftfahrzeug, ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern Front (World War ...
, the rear engine and rear sprocket driven Daimler-Benz VK 30.01 proposal was about lower overall than the rear engine/front sprocket MAN VK 30.02 proposal.
The large diameter of the radial engines in M4 tanks added to the hull height. These features accounted for the high silhouette and large side sponsons that were characteristic of the M4 lineage.Foss 2002, pp. 24–32.Zaloga 2008, ''Armored Thunderbolt'' pp. 16–42. In the spring of 1942, as the M4 Sherman was entering production, U.S. Army Ordnance began work on a follow-up tank. The T20 tank reached a mock-up stage in May 1942, and was intended as an improved medium tank to follow the M4.Hunnicutt 1996, p.49–50. An earlier heavy tank, the M6, had been standardized in February 1942, but proved to be a failure. The U.S. Army had no doctrinal use for a heavy tank at the time.Zaloga 2008, ''Armored Thunderbolt'' pp. 80–83, 130.Foss 2002, pp. 33–34.


T20

The T20 was designed to have a more compact hull than the M4. The Ford GAN V-8, a lower silhouette version of the GAA engine used in later variants of the M4, had become available. The engine had originally been an effort by Ford to produce a V-12 liquid-cooled aircraft engine patterned after the
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
, but failed to earn any aircraft orders and so was adapted as a V-8 for use in tanks; use of this lower profile engine together with the choice of a rear transmission and rear sprocket drive layout made it possible to lower the hull silhouette and eliminate the side sponsons. The T20 was fitted with the new 76 mm M1A1 gun, the 3-inch M7 was considered too heavy at about . New stronger steels were used to create a weapon weighing about 1,200 lb (540 kg). The 3 inch front hull armor was thicker than the front armor of the M4. The
glacis A glacis (; ) in military engineering is an artificial slope as part of a medieval castle or in early modern fortresses. They may be constructed of earth as a temporary structure or of stone in more permanent structure. More generally, a glacis ...
plate slope was similar at 46°. The T20's overall weight was approximately the same as the M4.Hunnicutt 1996, pp.50 & 104.Zaloga 2008, ''Panther vs. Sherman'' p.22. The T20 used an early version of the
horizontal volute spring suspension The vertical volute spring suspension system is a type of vehicle suspension system. This type of the suspension system was mainly fitted on US and Italian tanks and armored fighting vehicles starting from throughout the 1930s up until after the e ...
(HVSS), another improvement compared to the less robust vertical volute spring suspension (VVSS) of the early versions of the M4.Hunnicutt 1996, p.50. Later prototypes of the M26 tested a torsion bar suspension, which became the standard for future U.S. tank suspension systems.


T22 and T23

The T22 series reverted to the M4 transmission because of problems with the early Torqmatic
transmission Transmission may refer to: Medicine, science and technology * Power transmission ** Electric power transmission ** Propulsion transmission, technology allowing controlled application of power *** Automatic transmission *** Manual transmission ** ...
used in the T20. The T22E1 tested an autoloader for the main gun, and eliminated the loader's position with a small two-man turret. Through much of 1943, there was little perceived need within the U.S. Army for a better tank than the 75 mm M4 Sherman, and so, lacking any insights from the rest of the Army as to what was needed, the Ordnance Department then took a developmental detour into electrical transmissions with the T23 series. The electrical transmission was built by
General Electric General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable ene ...
, and had the engine driving a generator that powered two
traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles ( electric multip ...
s. The concept was similar to the drive system of the German "Porsche Tiger". It had performance advantages in rough or hilly terrain, where the system could better handle the rapid changes in torque requirements.Hunnicutt 1996, p. 72. The electrical transmission T23 was championed by the Ordnance Department during this phase of development. After the initial prototypes were built in early 1943, an additional 250 T23 tanks were produced from January to December 1944. These were the first tanks in the U.S. Army with the 76 mm M1A1 gun to go into production.Hunnicutt 1996, p. 81. However, the T23 would have required that the army adopt an entirely separate line of training, repair, and maintenance, and so was rejected for combat operations.Hunnicutt 1996, p. 82. The primary legacy of the T23 would thus be its production cast turret, which was designed from the outset to be interchangeable with the turret ring of the M4 Sherman. The T23 turret was used on all production versions of the 76 mm M4 Sherman as the original M4 75 mm turret was found to be too small to easily mount the 76 mm M1A1 gun. The first production 76 mm M4 with the T23 turret, the M4E6, was built in the summer of 1943.Zaloga 2008, ''Armored Thunderbolt'' pp. 115–131.


T25 and T26

The T25 and T26 lines of tanks came into being in the midst of a heated internal debate within the U.S. Army from mid-1943 to early 1944 over the need for tanks with greater firepower and armor. A 90 mm gun mounted in a massive new turret was installed in both series. The T26 series were given additional frontal hull armor, with the glacis plate increased to . This increased the weight of the T26 series to over and decreased their mobility and durability as the engine and powertrain were not improved to compensate for the weight gain. The T26E3 was the production version of the T26E1 with a number of minor modifications made as the result of field testing. In February 1945, the T26 was fielded in the European Theater, where its performance received early praise from Army Ordnance officials. The Army named the tank after Army General John J. Pershing when it was redesignated the M26 in March.Hunnicutt 1996, p. 94–121.


After the war

After World War II, some 800 M26 tanks were upgraded with improved engines, transmissions, and the improved 90mm gun M3A1. These were designated as the M26E1 and later redesignated as
M46 Patton The M46 Patton is an American medium tank designed to replace the M26 Pershing and M4 Sherman. It was one of the U.S Army's principal medium tanks of the early Cold War, with models in service from 1949 until the mid-1950s. It was not widely ...
.


Delayed production

The M26 was introduced late into World War II and saw only a limited amount of combat. Tank historians, such as Richard P. Hunnicutt, George Forty and
Steven Zaloga Steven J. Zaloga (born February 1, 1952) is an American author and defense consultant. He received a bachelor's degree ''cum laude'' at Union College and a master's degree at Columbia University, both in history. He has published many books d ...
, have generally agreed that the main cause of the delay in production of the M26 was opposition to the tank from the
Army Ground Forces The Army Ground Forces were one of the three autonomous components of the Army of the United States during World War II, the others being the Army Air Forces and Army Service Forces. Throughout their existence, Army Ground Forces were the large ...
, headed by General Lesley McNair. Zaloga in particular has identified several specific factors that led both to the delay of the M26 program and limited improvements in the firepower of the M4: ; 1. : McNair, who was an
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during si ...
officer, had promulgated the "
tank destroyer A tank destroyer, tank hunter, tank killer, or self-propelled anti-tank gun is a type of armoured fighting vehicle, armed with a direct fire artillery gun or missile launcher, designed specifically to engage and destroy enemy tanks, often ...
doctrine" in the U.S. Army. In this doctrine, tanks were primarily for infantry support and exploitation of breakthroughs. Those tactics dictated that enemy tanks were to be engaged by tank destroyer forces, which were composed of lightly armored but relatively fast vehicles carrying more powerful anti-tank guns, as well as towed versions of these anti-tank guns. Under the tank destroyer doctrine, emphasis was placed only on improving the firepower of the tank destroyers, as there was a strong bias against developing a heavy tank to take on enemy tanks. This also limited improvements in the firepower of the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
. The US Army Ground Forces that supported this doctrine got the approval of new TD projects, one of them using the same 90 mm gun, while at the same time they were blocking tank projects. ; 2. : McNair established "battle need" criteria for acquisition of weapons in order to make best use of America's supply line to Europe by preventing the introduction of weapons that would prove unnecessary, extravagant or unreliable on the battlefield. In his view, the introduction of a new heavy tank had problems in terms of transportation, supply, service, and reliability, and was not necessary in 1943 or early 1944. Tank development took time, and so the sudden appearance of a new tank threat could not be met quickly enough under such criteria. ; 3. : A sense of complacency fell upon those in charge of developing tanks in the U.S. Army because the M4 Sherman, in 1942, was considered by the Americans to be superior to the most common German tanks: the
Panzer III The ''Panzerkampfwagen III'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Germany, and was used extensively in World War II. The official German ordnance designation was Sd.Kfz. 141. It was intended to fight ot ...
and early models of the
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
. Even through most of 1943, the 75 mm M4 Sherman was adequate against the majority of German armor, although the widespread appearance of the German
7.5 cm KwK 40 The 7.5 cm KwK 40 ''(7.5 cm Kampfwagenkanone 40)'' was a German 75 mm Second World War era vehicle-mounted gun, used as the primary armament of the German Panzer IV (F2 model onwards) medium tank and the Sturmgeschütz III (F model ...
tank gun during this time had led to a growing awareness that the M4 was becoming outgunned. There was insufficient Intelligence data processing and forward thinking to understand that there was an ongoing arms race in tanks and that the U.S. needed to anticipate future German tank threats. The
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
and
Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with Sonderkraftfahrzeug, ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern Front (World War ...
s that appeared in 1943 were seen in only very limited numbers by U.S. forces and hence were not considered as major threats. The end result was that, in 1943, the Ordnance Department lacking any guidance from the rest of the army, concentrated its efforts in tank development mainly on its major project, the electrical transmission T23. By contrast, the Russians and British were engaged in a continuous effort to improve tanks; in 1943, the British began development of what became the 51-ton
Centurion tank The Centurion was the primary British Army main battle tank of the post- World War II period. Introduced in 1945, it is widely considered to be one of the most successful post-war tank designs, remaining in production into the 1960s, and seei ...
(although this tank reached service just too late to see combat in World War II) and, on the Eastern Front, a full-blown tank arms race was underway, with the Soviets responding to the German heavy tanks by starting development work on the
T-34-85 The T-34 is a Soviet medium tank introduced in 1940. When introduced its 76.2 mm (3 in) tank gun was less powerful than its contemporaries while its 60-degree sloped armour provided good protection against anti-tank weapons. The Chri ...
and
IS-2 The IS-2 (russian: ИС-2, sometimes romanized as JS-2The series name is an abbreviation of the name Joseph Stalin (russian: Иосиф Сталин); IS-2 is a direct transliteration of the Russian abbreviation, while JS-2 is an abbreviation of ...
tanks. To see more IS tanks, see
IS tank family The IS tanks (russian: ИС) were a series of heavy tanks developed as a successor to the KV-series by the Soviet Union during World War II. The IS acronym is the anglicized initialism of Joseph Stalin (, '). The heavy tanks were designed as a ...
. From mid-1943 to mid-1944, development of the 90 mm up-armored T26 prototype continued to proceed slowly due to disagreements within the U.S. Army about its future tank needs. The accounts of what exactly happened during this time vary by historian, but all agree that Army Ground Forces was the main source of resistance that delayed production of the T26. In September–October 1943, a series of discussions occurred over the issue of beginning production of the T26E1, which was advocated by the head of the Armored Force, General
Jacob Devers Jacob Loucks Devers (; 8 September 1887 – 15 October 1979) was a general in the United States Army who commanded the 6th Army Group in the European Theater during World War II. He was involved in the development and adoption of numerous ...
. Ordnance favored the 76 mm gun, electrical transmission T23. Theater commanders generally favored a 76 mm gun medium tank such as the T23, and were against a heavy 90 mm gun tank. However, testing of the T23 at Fort Knox had demonstrated reliability problems in the electrical transmission of which most army commanders were unaware. The new 76 mm M1A1 gun approved for the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
seemed to address concerns about firepower against the German tanks. All participants in the debate were, however, unaware of the inadequacy of the 76 mm gun against the frontal armor of the
Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with Sonderkraftfahrzeug, ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern Front (World War ...
, as they had not researched the effectiveness of this gun against the new German tanks, which had already been encountered in combat.Zaloga 2008, ''Armored Thunderbolt'' p. 120–125. Gen. Lesley J. McNair had agreed to the production of the 76 mm M4 Sherman, and he strongly opposed the additional production of the T26E1. In the fall of 1943, he wrote this letter to Devers, responding to the latter's advocacy of the T26E1: General Devers pressed on with his advocacy for the T26, going over McNair's head to General George Marshall, and, on 16 December 1943, Marshall overruled McNair and authorized the production of 250 T26E1 tanks. Then, in late December 1943, Devers was transferred to the Mediterranean, where he eventually led the invasion of Southern France with the 6th Army Group. In his absence, further attempts were made to derail the T26 program, but continued support from Generals Marshall and Eisenhower kept the production order alive. Testing and production of the T26E1 proceeded slowly, however, and the T26E1 did not begin full production until November 1944. These production models were designated as the T26E3. A single prototype of a T26 turret mounted on an M4(105) chassis was built by Chrysler in the summer of 1944, but did not progress into production. Hunnicutt, researching Ordnance Department documents, asserts that Ordnance requested production of 500 each of the T23, T25E1, and T26E1 in October 1943. The AGF objected to the 90 mm gun of the tanks, whereas the Armored Force wanted the 90 mm gun mounted in a Sherman tank chassis. General Devers cabled from London a request for production of the T26E1. In January 1944, 250 T26E1s were authorized. General Barnes of Ordnance continued to press for production of 1,000 tanks. According to Forty, Ordnance recommended that 1,500 of the T26E1 be built. The Armored Force recommended only 500. The AGF rejected the 90 mm version of the tank, and wanted it to be built with the 76 mm gun instead. Somehow, Ordnance managed to get production of the T26E1 started in November 1944. Forty primarily quoted from a post-war report from the Ordnance Dept.


Production

Production finally began in November 1944. Ten T26E3 tanks were produced that month at the Fisher Tank Arsenal, 30 in December, 70 in January 1945, and 132 in February. The Detroit Tank Arsenal also started production in March 1945, and the combined output was 194 tanks for that month. Production continued through the end of the war, and over 2,000 were produced by the end of 1945.


Super Pershing

The 90 mm M3 gun of the Pershing was similar to the German 88 mm KwK 36 used on the Tiger I. In an effort to match the firepower of the King Tiger's more powerful 88 mm KwK 43, the T15E1 90 mm gun was developed and mounted in a T26E1 in January 1945. This tank was designated T26E1-1. The T15E1 gun was 73
caliber In guns, particularly firearms, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel bore – regardless of how or where the bore is measured and whether the finished bore matc ...
s in length and had a much longer high-capacity chamber allowing it to penetrate up to 330mm of armor. This gave it a muzzle velocity of with the T30E16 APCR shot and could penetrate the Tiger's frontal armor beyond . The model shown used single-piece ammunition and was the only Super Pershing sent to Europe. Firing trials with the T15E1 revealed that the length and weight of the single-piece ammunition made it difficult to stow inside the tank and load into the gun. A second pilot tank was converted from a T26E3 and used a modified T15E2 gun that had two-piece ammunition. Twenty-five production models of the tank, designated T26E4, were built. An improved mounting removed the need for stabilizer springs. Post-war, two M26 tanks had the T54 gun installed, which had the same long gun barrel, but the ammunition cartridge was designed to be shorter and fatter, while still retaining the propellant force of the original round. The tanks were designated as the M26E1 tank, but lack of funds cut off further production.


Post-World War II

In May 1946, due to changing conceptions of the U.S. Army's tank needs, the M26 was reclassified as a
medium tank A medium tank is a classification of tanks, particularly prevalent during World War II which represented a compromise between the mobility oriented light tanks and the armour and armament oriented heavy tanks. A medium tank's classification is ...
. Designed as a
heavy tank Heavy tank is a term used to define a class of tanks produced from World War I through the end of the Cold War. These tanks generally sacrificed mobility and maneuverability for better armour protection and equal or greater firepower than tanks ...
, the Pershing was a significant upgrade from the M4 Sherman in terms of firepower, protection, and mobility. On the other hand, it was unsatisfactory for a medium tank (because it used the same engine that powered the M4A3, which was some ten tons lighter) and its transmission was somewhat unreliable. In 1948, the M26E2 version was developed with a new powerplant. Eventually, the new version was redesignated the M46 General Patton and 1,160 M26s were rebuilt to this new standard. Thus the M26 became a base of the Patton tank series, which replaced it in early 1950s. The
M47 Patton The M47 Patton was an American main battle tank, a development of the M46 Patton mounting an updated turret, and was in turn further developed as the M48 Patton. It was the second American tank to be named after General George S. Patton, comm ...
was an M46 Patton with a new turret. The later
M48 Patton The M48 Patton is an American first-generation main battle tank (MBT) introduced in February 1952, being designated as the 90mm Gun Tank: M48. It was designed as a replacement for the M26 Pershing, M4 Sherman, M46 and M47 Patton tanks, and w ...
and M60, which saw service later on in Vietnam and the various conflicts in the Middle East and still serve in active duty in many nations today, were evolutionary redesigns of the original layout set down by the Pershing.


Combat history


World War II in Europe

Development of the M26 during World War II was prolonged by a number of factors, the most important being opposition to the tank from
Army Ground Forces The Army Ground Forces were one of the three autonomous components of the Army of the United States during World War II, the others being the Army Air Forces and Army Service Forces. Throughout their existence, Army Ground Forces were the large ...
. However, the tank losses experienced in the
Battle of the Bulge The Battle of the Bulge, also known as the Ardennes Offensive, was the last major German offensive campaign on the Western Front during World War II. The battle lasted from 16 December 1944 to 28 January 1945, towards the end of the war in ...
against a concentrated German tank force composed of some 400
Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with Sonderkraftfahrzeug, ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern Front (World War ...
s, as well as Tiger II tanks and other German armored fighting vehicles, revealed the deficiencies in the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
s and
tank destroyer A tank destroyer, tank hunter, tank killer, or self-propelled anti-tank gun is a type of armoured fighting vehicle, armed with a direct fire artillery gun or missile launcher, designed specifically to engage and destroy enemy tanks, often ...
s in the American units. This deficiency motivated the military to ship the tanks to Europe, and on 22 December 1944, the T26E3 tanks were ordered to be deployed to Europe. Due to the repeated design and production delays, only 20 Pershing tanks were introduced into the European theater of operations before the
Battle of the Bulge The Battle of the Bulge, also known as the Ardennes Offensive, was the last major German offensive campaign on the Western Front during World War II. The battle lasted from 16 December 1944 to 28 January 1945, towards the end of the war in ...
showed the serious mismatch between Allied and German armor. This first shipment of Pershings arrived in
Antwerp Antwerp (; nl, Antwerpen ; french: Anvers ; es, Amberes) is the largest city in Belgium by area at and the capital of Antwerp Province in the Flemish Region. With a population of 520,504,
in January 1945. They were given to the 1st Army, which split them between the
3rd Third or 3rd may refer to: Numbers * 3rd, the ordinal form of the cardinal number 3 * , a fraction of one third * 1⁄60 of a ''second'', or 1⁄3600 of a ''minute'' Places * 3rd Street (disambiguation) * Third Avenue (disambiguation) * H ...
and 9th Armored Divisions.Zaloga 2008, ''Armored Thunderbolt'' p. 287. A total of 310 T26E3 tanks were eventually sent to Europe before
VE Day Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945, marking the official end of World War II in Europe in the Easter ...
, with 200 being issued to the troops. The actual number that engaged in combat is unknown. In February 1945, Major General
Gladeon M. Barnes Gladeon Marcus Barnes (15 June 1887 – 15 November 1961) was a United States Army major general who, as Chief of Research and Engineering in the Ordnance Department, was responsible for the development of 1,600 different weapons. He is best kn ...
, chief of the Research and Development Section of Army Ordnance, personally led a special team to the European Theater, called the Zebra Mission. Its purpose was to support the T26E3 tanks, which still had teething problems, as well as to test other new weapons. In March, the T26E3 tanks were redesignated as the M26. The 3rd Armored first used the M26 to engage the enemy on 25 February near the
Roer River The Rur or Roer (german: Rur ; Dutch and li, Roer, , ; french: Rour) is a major river that flows through portions of Belgium, Germany and the Netherlands. It is a right (eastern) tributary to the Meuse ( nl, links=no, Maas). About 90 perc ...
. On 26 February, a T26E3 named ''Fireball'' was knocked out in an ambush at Elsdorf while overwatching a roadblock. Silhouetted by a nearby fire, the Pershing was in a disadvantageous position. A concealed Tiger tank fired three shots from about . The first penetrated the turret through the machine gun port in the mantlet, killing both the gunner and the loader. The second shot hit the gun barrel, causing the round that was in the chamber to fire with the effect of distorting the barrel. The last shot glanced off the turret side, taking off the upper cupola hatch. While backing up to escape, the Tiger became entangled in debris and was abandoned by the crew. ''Fireball'' was quickly repaired and returned to service on 7 March. Shortly afterwards, also at Elsdorf, another T26E3 knocked out a
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
and two
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
s. The Tiger was knocked out at with the 90-mm HVAP T30E16 ammunition. Photographs of this knocked out Tiger I in Hunnicutt's book showed a penetration through the lower gun shield. On 6 March, just after the 3rd Armored Division had entered the city of
Cologne Cologne ( ; german: Köln ; ksh, Kölle ) is the largest city of the German western state of North Rhine-Westphalia (NRW) and the fourth-most populous city of Germany with 1.1 million inhabitants in the city proper and 3.6 millio ...
, a famous tank duel took place. A
Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with Sonderkraftfahrzeug, ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern Front (World War ...
on the street in the front of
Cologne Cathedral Cologne Cathedral (german: Kölner Dom, officially ', English: Cathedral Church of Saint Peter) is a Catholic cathedral in Cologne, North Rhine-Westphalia. It is the seat of the Archbishop of Cologne and of the administration of the Archdiocese ...
was lying in wait for enemy tanks. Two
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
s were supporting infantry and came up on the same street as the Panther. They ended up stopping just before the Cathedral because of rubble in the street and didn't see the enemy Panther. The lead Sherman was knocked out, killing three of the five crew. A T26E3 was in the next street over and was called over to engage the Panther. What happened next was described by the T26E3 gunner Cpl. Clarence Smoyer: Four of the Panther's crew were able to successfully bail out of the stricken tank before it was destroyed. The action was recorded by a Signal Corps cameraman T/Sgt. Jim Bates. On the same day, another T26E3 was knocked out in the town of Niehl near Cologne, by a rarely-seen ''Nashorn'' 88 mm tank destroyer, at a range of under . There were two other tank engagements involving the T26E3, with one
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
knocked out during the fighting around Cologne, and one
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
knocked out at Mannheim. The T26E3s with the 9th Armored Division saw action in fighting around the Roer River with one Pershing disabled by two hits from a German 150 mm field gun. A platoon of five M26s, less one that was being serviced, played a key role in helping Combat Command B of the 9th Armored capture the Ludendorff Bridge during the
Battle of Remagen The Battle of Remagen was an 18-day battle during the Allied invasion of Germany in World War II from 7 to 25 March 1945 when American forces unexpectedly captured the Ludendorff Bridge over the Rhine intact. They were able to hold it against ...
on 7–8 March 1945, providing fire support to the infantry in order to take the bridgehead before the Germans could blow it up. In encounters with Tigers and Panthers, the M26 performed well. Some of the division's other tanks were able to cross the bridge, but the T26E3s were too large and heavy to cross the damaged bridge and had to wait five days before getting across the river by barge. Europe's bridges were in general not designed for heavy loads, which had been one of the original objections to sending a heavy tank to Europe.


Super Pershing

A single Super Pershing was shipped to Europe and given additional armor to the gun mantlet and front hull by the maintenance unit before being assigned to one of the tank crews of the 3rd Armored Division. The new gun on the Super Pershing could pierce of armor at . The front hull was given two 38 mm steel boiler plates, bringing the front up to 38+38+102 mm of armor. The plates were applied at a greater slope than the underlying original hull plate. The turret had 80 mm thick rolled homogeneous armor (RHA) from a Panther upper glacis welded to the mantlet, covering the front. This added about five tonnes to the tank weight, requiring extra armor added to the turret for balance. An account of the combat actions of this tank appeared in the war memoir ''Another River, Another Town'', by John P. Irwin, who was the tank gunner. Zaloga described three actions in his book. On 4 April, between Weser and Nordheim, the Super Pershing engaged and destroyed a German tank, or something resembling a tank, at a range of . According to Zaloga, it is possible this vehicle was a Jagdpanther from the 507th Heavy Panzer Battalion. On 12 April, the Super Pershing claimed a German tank of unknown type. On 21 April, the Super Pershing was involved in a short-range tank duel with a German tank, which it knocked out with a shot to the belly. Irwin described this German tank as a Tiger, but Zaloga was skeptical of this claim. The tank was likely a Panzer IV. After the war, the single Super Pershing in Europe was last photographed in a vehicle dump in Kassel, Germany, and was most likely scrapped.


Use in Okinawa

In May 1945, as fierce fighting continued on the island of
Okinawa is a Prefectures of Japan, prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 Square kilometre, km2 (880 sq mi). ...
, and M4 tank losses mounted, plans were made to ship the M26 Pershing tanks to that battle. On 31 May 1945, a shipment of 12 M26 Pershing tanks were dispatched to the Pacific for use in the Battle of Okinawa. Due to a variety of delays, the tanks were not completely offloaded on the beach at Naha, Okinawa until 4 August. By then, fighting on Okinawa had come to an end, and VJ Day followed on 2 September 1945.


Use in the Korean War

At the outbreak of the
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
, only four tank companies equipped with the
M24 Chaffee The M24 Chaffee (officially Light Tank, M24) was an American light tank used during the later part of World War II; it was also used in post–World War II conflicts including the Korean War, and by the French in the War in Algeria and the Firs ...
were operational under the U.S. Far East Command. In July 1950, when the M24 was revealed ineffective against North Korean tanks such as the T-34-85, the U.S. military hurriedly began to mobilize medium-sized tanks to deal with them. The Far East Command urgently maintained three M26 tanks, which were left unattended at the
Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.46 ...
ordnance depot, and organized into a provisional tank platoon, commanded by Lieutenant Samuel Fowler, and deployed them to the Korean Peninsula. However, while defending
Jinju Jinju () is a city in South Gyeongsang Province, South Korea. It was the location of the first (1592) and second (1593) Sieges of Jinju by Japanese forces during the Imjin War. The Republic of Korea Air Force Education and Training Command is ...
on July 31, all of these tanks experienced engine overheating and became immobilized due to insufficient maintenance on belts and cooling fans, and eventually all of them were self-destructed. Around the same time, various tank battalions of the Army and a tank company from the 1st Marine Provisional Brigade, which were all fully organized armored training units, were dispatched to the Korean Peninsula along with the M26 Pershing tank. The 70th Tank Battalion at
Fort Knox Fort Knox is a United States Army installation in Kentucky, south of Louisville and north of Elizabethtown. It is adjacent to the United States Bullion Depository, which is used to house a large portion of the United States' official gold re ...
Kentucky had pulled World War II memorial M26s off of pedestals and reconditioned them for use, but had to fill out two companies with M4A3s. The 72nd Tank Battalion at Fort Lewis Washington and the 73rd Tank Battalion at
Fort Benning Fort Benning is a United States Army post near Columbus, Georgia, adjacent to the Alabama– Georgia border. Fort Benning supports more than 120,000 active-duty military, family members, reserve component soldiers, retirees and civilian employee ...
Georgia were fully equipped with M26s. The 89th Medium Tank Battalion was constituted in Japan with three companies of reconditioned M4A3s and one of M26s from various bases in the Pacific; due to the shortage of M26s, most regimental tank companies had M4A3 Shermans instead. Two battalions detached from the 2nd Armored Division at
Fort Hood Fort Hood is a United States Army post located near Killeen, Texas. Named after Confederate General John Bell Hood, it is located halfway between Austin and Waco, about from each, within the U.S. state of Texas. The post is the headquarter ...
Texas, the 6th Medium and 64th Heavy Tank Battalions, were fully equipped with M46 Patton tanks. The 1st Marine Division at
Camp Pendleton Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and is one of the largest Marine Corps bases in the United States. It is on the Southern California coast in San Diego County and is bordered by O ...
California had all M4A3 howitzer tanks, which were replaced with M26s just days before boarding ships for Korea. On August 17, one M26 of the U.S. Marine Tank Company destroyed three T-34-85s of the 109th Tank Regiment of the North Korean Army in a few minutes during their first contact at Obong-ri,
Changnyeong Changnyeong County (''Changnyeong-gun'' 창녕군) is a county in South Gyeongsang Province, South Korea. In the early Three Kingdoms period, Changnyeong was the seat of Bihwa Gaya, a member of the Gaya confederacy which was later conquered by S ...
. Then, during the
Battle of the Bowling Alley In the Battle of the Bowling Alley (August 21, 1950), United Nations Command (UN) forces defeated North Korean forces early in the Korean War near the city of Taegu, South Korea. The battle took place in a narrow valley, dubbed the "Bowling A ...
, M26s of the 73rd Tank Battalion, which supported the ROK 1st Infantry Division during the Battle of Tabu-dong, destroyed 13 T-34-85 tanks and five SU-76M self-propelled guns. A total of 309 M26 tanks were fielded on the Korean Peninsula by the end of 1950, and 29 North Korean tanks were defeated by them during the same period. In particular, thanks to the 90 mm main gun, the M26 was evaluated to be more effective in tank combat than the M4A3E8. However, the M26 tank was gradually replaced by the new M46 tank in 1951 due to its chronic lack of mobility as the war evolved into battles between mountains. A 1954 survey concluded that there were in all 119, mostly small scale, tank vs. tank actions involving U.S. Army and Marine units during the Korean War, with 97 T-34-85 tanks knocked out and another 18 probables. The M4A3E8 was involved in 50% of the tank actions, the M26 in 32%, and the M46 in 10%. The M26/M46 proved to be an overmatch for the T-34-85 as its 90 mm HVAP round could – at point blank range – punch all the way through the T-34 from the front glacis armor to the back, whereas the T-34-85 had difficulty penetrating the armor of the M26 or M46.Zaloga 2010:74 The M4A3E8, firing 76 mm HVAP rounds that were widely available during the Korean War (unlike World War II), was a closer match to the T-34-85 as both tanks could destroy each other at normal combat ranges. After November 1950, North Korean armor was rarely encountered. China entered the conflict in February 1951 with four regiments of tanks (a mix of mostly T-34-85 tanks, with a few
IS-2 The IS-2 (russian: ИС-2, sometimes romanized as JS-2The series name is an abbreviation of the name Joseph Stalin (russian: Иосиф Сталин); IS-2 is a direct transliteration of the Russian abbreviation, while JS-2 is an abbreviation of ...
tanks, and some other AFVs). However, because these Chinese tanks were dispersed with the infantry, tank to tank battles with UN forces were uncommon. With the marked decrease in tank to tank actions, the automotive deficiencies of the M26 in the mountainous Korean terrain became more of a liability, so some M26s were withdrawn from Korea during 1951 and replaced with M4A3 Shermans and M46 Pattons. The M45 howitzer tank variant was only used by the assault gun platoon of the 6th Medium Tank Battalion, and these six vehicles were withdrawn by January 1951.


Europe

After the end of World War II, U.S. Army units on occupation duty in Germany were converted into constabulary units, a quasi-police force designed to control the flow of refugees and black marketing; combat units were converted to light motorized units and spread throughout the U.S. occupation zone. By the summer of 1947, the army required a combat reserve to back up the thinly spread constabulary; in the following year, the 1st Infantry Division was reconstituted and consolidated, containing three regimental tank companies and a divisional tank battalion. The 1948 tables of organization and equipment for an infantry division included 123 M26 Pershing tanks and 12 M45 howitzer tanks. In the summer of 1951, three more infantry divisions and the 2nd Armored Division were sent to West Germany as a part of the NATO Augmentation Program. While M26 Pershings disappeared from Korea during 1951, tank units deploying to West Germany were equipped with them, until replaced with M47 Pattons during 1952–53. The 1952–53 tables of organization and equipment for an infantry division included 135 M47 Patton tanks replacing M26s and M46s. In 1952, the
Belgian Army The Land Component ( nl, Landcomponent, french: Composante terre) is the land branch of the Belgian Armed Forces. The King of the Belgians is the commander in chief. The current chief of staff of the Land Component is Major-General Pierre Gérard. ...
received 423 M26 and M26A1 Pershings, leased free of charge as part of a
Mutual Defense Assistance Program The Mutual Defense Assistance Act was a United States Act of Congress signed by President Harry S. Truman on 6 October 1949. For US Foreign policy, it was the first U.S. military foreign aid legislation of the Cold War era, and initially to Euro ...
, then the official designation of U.S. military aid to its allies. The tanks were mostly used to equip mobilizable reserve units of battalion strength: 2nd, 3rd and 4th ''Régiments de Guides''/''Regiment Gidsen'' (Belgian units have official names in both French and Dutch); 7th, 9th and 10th ''Régiments de Lanciers''/''Regiment Lansiers'' and finally the 2nd, 3rd and 5th ''Bataillon de Tanks Lourds''/''Bataljon Zware Tanks''. However, in the spring of 1953, M26s for three months equipped the 1st Heavy Tank Battalion of the 1st Infantry Division, an active unit, before they were replaced by M47s. In 1961, the number of reserve units was reduced and the reserve system reorganized, with the M26s equipping the 1st and 3rd ''Escadron de Tanks''/''Tank Escadron'' as a general reserve of the infantry arm. In 1969, all M26s were phased out. As the U.S. Army units in West Germany reequipped with M47s in 1952–1953, France and Italy also received M26 Pershings; while France quickly replaced them with M47 Pattons, Italy continued to use them operationally through 1963.


Variants

* M26 (T26E3). M3 gun with double-baffle
muzzle brake A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted ...
. Main production model. * M26A1. M3A1 gun with bore evacuator and single-baffle muzzle brake. * T26E1-1 (T26E4-1 or M26A1E2). Version armed with a T15E1 large exterior stabilizer springs and single piece ammo (used in combat). * T26E4. Experimental version armed with a long T15E2 gun two-part ammunition, improved mounting removed the need for springs. * M26E1. Longer gun, single-part ammunition T54 gun. (post war) * M26E2. New engine and transmission and M3A1 gun. Reclassified as the
M46 Patton The M46 Patton is an American medium tank designed to replace the M26 Pershing and M4 Sherman. It was one of the U.S Army's principal medium tanks of the early Cold War, with models in service from 1949 until the mid-1950s. It was not widely ...
. (post war) * T26E2, eventually standardized for use as the Medium Tank M45—a close support vehicle with a 105 mm howitzer (74 rounds). * T26E5. Prototype with thicker armor—a maximum of 279 mm— based on the experience of the heavily armored assault tank M4A3E2.


Operators

* * * * : An unspecified number of M26s were transferred from withdrawing U.S. troops after the Korean War. * (received one through the Lend-Lease program; this was a T26 model) * (received twelve through the
Lend-Lease Lend-Lease, formally the Lend-Lease Act and introduced as An Act to Promote the Defense of the United States (), was a policy under which the United States supplied the United Kingdom, the Soviet Union and other Allied nations with food, oil, ...
program, Presumably six T26 and six T26E3) *


See also

*
Tanks of the United States The United States has produced tanks since their inception in World War I, up until the present day. While there were several American experiments in tank design, the first American tanks to see service were copies of French light tanks and a ...
* Tanks of the U.S. in the World Wars * Tanks of the U.S. in the Cold War * 240 mm T92 Howitzer Motor Carriage * List of "M" series military vehicles


Comparable tanks

* German
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
and
Panther Panther may refer to: Large cats * Pantherinae, the cat subfamily that contains the genera ''Panthera'' and ''Neofelis'' **'' Panthera'', the cat genus that contains tigers, lions, jaguars and leopards. *** Jaguar (''Panthera onca''), found in S ...
* German
Tiger II The Tiger II is a German heavy tank of the Second World War. The final official German designation was ''Panzerkampfwagen'' Tiger ''Ausf''. B,''Panzerkampfwagen'' – abbr: ''Pz.'' or ''Pz.Kfw.'' (English: " armoured fighting vehicle"), ''Ausf.' ...
– comparable to T26E4 "Super Pershing" * Soviet IS-85 and IS-1 * Soviet
T-44 The T-44 is a medium tank first developed and produced near the end of World War II by the Soviet Union. It was the successor to the T-34, offering an improved ride and cross-country performance, along with much greater armor. Designed to be eq ...
* British
Centurion tank The Centurion was the primary British Army main battle tank of the post- World War II period. Introduced in 1945, it is widely considered to be one of the most successful post-war tank designs, remaining in production into the 1960s, and seei ...


Notes


References

* Coox, A. D. Staff Memorandum ''US armor in the antitank role, Korea, 1950'' ORO-S-45. * D'Este, Carlo. ''Patton: A Genius for War'', 1995, Harper Collins Publishers, * Forty, George. ''United States Tanks of World War II'', 1983, Blandford Press, * Foss, Christopher F., editor. ''The Encyclopedia of Tanks and Armored Fighting Vehicles'', 2002, Thunder Bay Press, . * Hunnicutt, R. P. ''Pershing, A History of the Medium Tank T20 Series'', 1996, Feist Publications, . * Irwin, John P. ''Another River, Another Town'', 2002, J.K. Lambert, . * Jentz, Thomas. ''Germany's Panther Tank'', 1995, Schiffer Publishing, . * * Zaloga, Steven J. ''Armored Thunderbolt'', 2008, Stackpole Books, . * . * .


External links


T26E4 Heavy Tank Walkaround by Armor Journal magazine. First Division Museum at Cantigny, Wheaton, IL.


* ttp://www.popsci.com/archive-viewer?id=PiEDAAAAMBAJ&pg=71&query=pershing ''Pershing Tank Packs 90-mm. Punch'' July 1945
Popular Science ''Popular Science'' (also known as ''PopSci'') is an American digital magazine carrying popular science content, which refers to articles for the general reader on science and technology subjects. ''Popular Science'' has won over 58 awards, incl ...
article
AFV Database
* {{DEFAULTSORT:Pershing, M26 Cold War tanks of the United States Heavy tanks of the United States World War II tanks of the United States Military vehicles introduced from 1940 to 1944 History of the tank Medium tanks of the United States World War II heavy tanks Medium tanks of the Cold War