M48 Patton
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The M48 Patton is an American first-generation
main battle tank A main battle tank (MBT), also known as a battle tank or universal tank, is a tank that fills the role of armor-protected direct fire and maneuver in many modern armies. Cold War-era development of more powerful engines, better suspension sys ...
(MBT) introduced in February 1952, being designated as the 90mm Gun Tank: M48. It was designed as a replacement for the
M26 Pershing The M26 Pershing was a heavy tank/ medium tank of the United States Army. It was used in the last months of World War II during the Invasion of Germany and extensively during the Korean War. The tank was named after General of the Armies John J ...
,
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the Military history of the United States during World War II, United States and Allies of World War II, Western Allies in World War II. The M4 Sherman prove ...
, M46 and
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, command ...
tanks, and was the main battle tank of the
U.S. 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, cl ...
and U.S. Marine Corps in the Vietnam War. Nearly 12,000 M48s were built, mainly by
Chrysler Stellantis North America (officially FCA US and formerly Chrysler ()) is one of the " Big Three" automobile manufacturers in the United States, headquartered in Auburn Hills, Michigan. It is the American subsidiary of the multinational automoti ...
and
American Locomotive Company The American Locomotive Company (often shortened to ALCO, ALCo or Alco) was an American manufacturer of locomotives, diesel generators, steel, and tanks that operated from 1901 to 1969. The company was formed by the merger of seven smaller locomo ...
, from 1952 to 1961. The M48 Patton was the first U.S. medium gun tank with a four man crew, which replaced the traditional 5 crewmen tanks, a centerline driver's compartment, and no bow machine gun. As with nearly all new armored vehicles it had a wide variety of suspension systems, cupola styles, power packs, fenders and other details among individual tanks. The early designs, up to the M48A2C, were powered by a gasoline engine. The M48A3 and A5 versions used a diesel engine, however, gasoline engine versions were still in use in the US Army National Guard through 1968 and through 1975 by many West German Army units. Numerous examples of the M48 saw combat use in various
Arab–Israeli conflict The Arab–Israeli conflict is an ongoing intercommunal phenomenon involving political tension, military conflicts, and other disputes between Arab countries and Israel, which escalated during the 20th century, but had mostly faded out by the ...
s and the
Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...
. Beginning in 1959, most American M48A1s and A2s were upgraded to the M48A3 model. The M48 Patton-series saw widespread service with the United States and
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...
, until it was superseded by the
M60 tank 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 ...
, and were widely exported. The tank's hull also developed a wide variety of prototypical, utility and support vehicles such as armored recovery vehicles and bridge layers. Some M48A5 models served into the mid-1980s with US Army National Guard units, and M48A3s were used as targets for weapons and radar testing into the mid-1990s. Many M48s remain in service in other countries, though most of these have been highly modified and had their firepower, mobility and protection upgraded to increase their combat effectiveness on the modern battlefield. As of 2015, Turkey is the largest operator with over 750 units in service, Taiwan is second with approximately 500 upgraded variants, and Greece is third with 390 in service.


History

After the conclusion of
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, the United States Ordnance Tank-Automotive Command (OTAC) drastically slowed or canceled many tank development and design programs. On 7 November 1950, the Ordnance Technical Committee mandated a change in the nomenclature for tanks in the US Military. It was decided that weight designations (Light, Medium, Heavy) were no longer applicable due to changes in the way tanks were developed and employed on the battlefield, and the varying calibers of main guns now available. Thus the caliber of the gun replaced its weight designation. For example, the M103 Heavy Tank was redesignated as the 120mm Gun Tank M103 and the Light Tank M41 Walker Bulldog as the 76mm Gun Tank M41 Walker Bulldog. The M47 Patton entered production in 1951 and was used by 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, cla ...
and
Marine Corps Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (refle ...
but ongoing technical and production problems kept it from serving in the
Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...
. This forced the US to field older tank models, such as the
M26 Pershing The M26 Pershing was a heavy tank/ medium tank of the United States Army. It was used in the last months of World War II during the Invasion of Germany and extensively during the Korean War. The tank was named after General of the Armies John J ...
and
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 us ...
. In response, the Army launched several design projects for a replacement of the M46 and M26. The United States entered a period of frenzied activity during the crisis atmosphere of the Korean War, when America seemed to lag behind the Soviet Union in terms of tank quality and quantity. Testing and development cycles occurred simultaneously with production to ensure speedy delivery of new tanks. Such rapid production caused problems but the importance given to rapidly equipping combat units with new tanks precluded detailed testing and evaluation prior to its quantity production. Notable among these were the T42, T69 and T48 projects as well as continuing to pursue further improvements to the M47. Compromise was inevitable, but not always welcomed, as General
Bruce C. Clarke Bruce Cooper Clarke (April 29, 1901 – March 17, 1988) was a United States Army general. He was a career officer who served in World War I, World War II, and the Korean War. He was the commander of Continental Army Command from 1958 to 1960, ...
ironically observed: "We know exactly what we want. We want a fast, highly mobile, fully armored, lightweight vehicle. It must be able to swim, cross any terrain, and climb 30 degree hills. It must be air-transportable. It must have a simple but powerful engine, requiring little or no maintenance. The operating range should be several hundred miles. We would also like it to be invisible".


T48 project

The T48 project was to focus on improving the turret of 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, command ...
and upgrading performance with a more powerful yet more efficient gasoline engine. 1/4 and 1/8 scale design
mockup In manufacturing and design, a mockup, or mock-up, is a scale or full-size model of a design or device, used for teaching, demonstration, design evaluation, promotion, and other purposes. A mockup may be a ''prototype'' if it provides at leas ...
s of the turret were constructed during May 1950 using the T119 90mm main gun of 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, command ...
. The design study was accepted by the Army in December and a contract for the advanced production design and engineering (APE) of a 90mm armed tank was awarded to the Chrysler Defense. Hull redesign included moving the driver's station to the front center and removal of the bow-mounted machine gun and its associated crew station, which was converted to safe container storage for additional main gun ammunition. The front glacis was sloped to offer much better ballistic protection than former welded and rather flat designs. An aircraft style steering wheel (a
yoke A yoke is a wooden beam sometimes used between a pair of oxen or other animals to enable them to pull together on a load when working in pairs, as oxen usually do; some yokes are fitted to individual animals. There are several types of yoke, us ...
) replaced lever steering. The power pack consisted of the Continental AV-1790-5B gasoline engine producing 704 brake horsepower coupled to an Allison CD-850-4A cross-drive transmission with 2 forward and 1 reverse ranges. The hull armor was increased to on the front glacis of rolled homogeneous steel. It had six roadwheel pairs per side and five return rollers, a torsion bar suspension system, and used T97E2 steel tracks. A new hemispherically shaped turret eliminated the M47s noted shot traps and lowered the vehicle's height. T48 pilot #1 was constructed by Chrysler Engineering to begin testing at the OTAC Detroit Arsenal Test Center in December 1951. Six prototypes were built in all. On 27 February 1951, shortly after the outbreak of the
Korean War , date = {{Ubl, 25 June 1950 – 27 July 1953 (''de facto'')({{Age in years, months, weeks and days, month1=6, day1=25, year1=1950, month2=7, day2=27, year2=1953), 25 June 1950 – present (''de jure'')({{Age in years, months, weeks a ...
, the Ordnance Technical Committee Minutes (OTCM) #33791 initiated the simultaneous production and design refinement of the new tank, designating the production tanks as the 90mm Gun Tank M48. The Army planned to produce some 9,000 M48s within three years of development. Chrysler Corporation became the principal producer of the tank. Expected production and teething troubles led to the creation of integrating committees to coordinate tank and component development. These Army Combat Vehicle (ARCOVE) committees included military and industrial representatives who provided early warning of defects and recommended remedies. Testing trials of the T48 tanks began in February 1952 and continued until the end of 1955. However the perceived immediate threat of Soviet aggression in Western Europe and the ongoing Korean War impelled Army senior leadership to rush the T48 tank into series production before the inevitable bugs could be worked out of the new tank design. Instead, it was decided that any needed design changes uncovered by the continued testing and evaluation of the T48 tanks at the OTAC Detroit Arsenal Test Center would be incorporated into the M48 series production vehicles as quickly as possible. T48 pilot #1 was designed and constructed by Chrysler Engineering to begin the APE design development at the OTAC Detroit Arsenal Test Center in December 1951. This tank was provisionally armed with the M36/T119 gun using a Y-shaped deflector and a muzzle brake.Standard Military Vehicle Characteristic Data Sheets. Center Line, MI: Army Tank and Automotive Command Research & Engineering Directorate, July 1960. This gun was not used for production M48 tanks. It used the Mod A hull and turret designs with smaller diameter crew hatches. The driver's hatch incorporated a mechanism that dropped his three periscope heads to provide clearance for the hatch door as it swung to the right, and the driver then had to reposition the periscopes by hand once the hatch was closed again. It had 5 return rollers, 6 roadwheel pairs per side with the drive sprocket at the rear and a torsion bar suspension system. Pilot #2 was built in February 1952 and also used the early Mod A design with small hatches. It was fitted with the T139/M41 90mm gun replacing the muzzle brake with a cylindrical blast deflector. A T-shaped deflector was used for production M48 tanks. This vehicle had two machine guns installed, a .30cal M1919E4 mounted coaxially to the left of the main gun and a .50cal M2HB mounted on the commander's cupola. The full image stereoscopic T46E1/M12 rangefinder was placed in the central section of the turret. Pilot #3 was constructed in November 1952 and used the Mod B hull and turret designs with a simplified, larger diameter hatch that was easier for the driver to operate. Also the front vision block was removable and allowed for the future use of IR vision blocks by the driver. It also had 5 return rollers, 6 roadwheel pairs per side with the drive sprocket at the rear and a torsion bar suspension system. The Mod B turret also had larger hatches for the commander and loader. An additional three hulls were constructed (T48 pilots 4 through 6) in 1953. These tanks were used into 1955 for the component development of the M48A2 production tanks including fire control systems, turret cupolas, suspension configurations and powerpacks. At least one of these hulls was fitted with experimental silica glass composite armor panels.


Components


Armor

In conjunction with the development of the T48 project there was some discussion regarding armor. The weight of conventional armored steel needed to provide protection against the emerging large-caliber high-velocity main guns and improved APDS kinetic energy penetrators was making its continued use impractical. Composite applique armor panels made with
fused silica Fused quartz, fused silica or quartz glass is a glass consisting of almost pure silica (silicon dioxide, SiO2) in amorphous (non-crystalline) form. This differs from all other commercial glasses in which other ingredients are added which change ...
glass was envisioned to be fitted to the hull. It was also desired that a turret be constructed using this special armor. The OTAC and
Carnegie Institute of Technology Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania. One of its predecessors was established in 1900 by Andrew Carnegie as the Carnegie Technical Schools; it became the Carnegie Institute of Technology ...
began development of the armor in November 1952 at
Fort Belvoir Fort Belvoir is a United States Army installation and a census-designated place (CDP) in Fairfax County, Virginia, United States. It was developed on the site of the former Belvoir plantation, seat of the prominent Fairfax family for whom Fair ...
VA as Project TT2-782/51. This composite armor offered protection against HEAT, HEP, and HE rounds. Its overall slow development limited its use to the T48 and was dropped from consideration in the M48 by 1953, however its development was continued with the T95 Medium Tank until 1958. There were two different hulls used for the M48 series. The M48 hull had a wedge-shaped front glacis compared to the M46's rather flat design. Early Mod A hulls had smaller diameter driver's hatches. The suspension consisted of six roadwheel pairs per side with a torsion bar suspension system and five return rollers. The engine exhaust vents were located on the top of the rear deck. There was a dual compensating idler arm at the front, and dual auxiliary track tension wheels behind the last road wheels, using the T97E2 track assembly. The drive sprocket was located at the rear of the hull. Shock absorbers were mounted at the first two and last roadwheel arms. This hull design was manufactured for the original M48 and M48A1 versions of the M48 series. Many Mod B hull designs used for the M48A1 (T48 Pilot #3) were further upgraded to the A2 hull design standard but retained their original 5 return roller configuration. The M48A2 hull design saw several modifications including a reduction from five to three return rollers per side. The suspension system was simplified, a more compact powerpack compartment and additional fuel cells, with large louvered grill access doors replaced the complicated grill work of the rear engine decks of the M48/M48A1 hull designs. This hull was used on newly constructed M48A2 and M48A3 tanks of the M48 series. The turret used for the M48 series was hemispherical in shape and was made from cast homogeneous steel. It had a flat gun shield and a standard pop-up styled hatch for the commander and an additional hatch for the loader's station. Early production Mod A models of the turret had somewhat smaller diameter hatches. The gunner was provided with an M37 .30 cal machine gun with 5,900 rounds of ammunition.


Rangefinders and fire control systems

During WWII and the Korean War, most tanks used a direct sighting system where the gun sights and rangefinders were slaved directly to the gun's barrel but its long range accuracy depended upon the focusing abilities of the individual gunner. There are two basic types of optical
rangefinders A rangefinder (also rangefinding telemeter, depending on the context) is a device used to measure distances to remote objects. Originally optical devices used in surveying, they soon found applications in other fields, such as photography an ...
, stereoscopic and coincidence. With a stereoscopic model range determination occurred by measuring the distance from the observer to a target using the observer's capability of
binocular vision In biology, binocular vision is a type of vision in which an animal has two eyes capable of facing the same direction to perceive a single three-dimensional image of its surroundings. Binocular vision does not typically refer to vision where an ...
. The
coincidence rangefinder A coincidence rangefinder or coincidence telemeter is a type of rangefinder that uses mechanical and optical principles to allow an operator to determine the distance to a visible object. There are subtypes split-image telemeter, inverted image, ...
uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. The ARCOVE emphasis upon increased long range accuracy led to the incorporation of a
fire control system A fire-control system (FCS) is a number of components working together, usually a gun data computer, a director, and radar, which is designed to assist a ranged weapon system to target, track, and hit a target. It performs the same task as a ...
(FCS) in the M48. The fire control system included a rangefinder, mechanical ballistic computer, ballistic drive, and gunner's sight. Collectively, these mechanical devices resembled in miniature the fire control systems used in
naval gunnery Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firing weapons and excludes ...
. Only after the Second World War did such systems become small enough for use in combat vehicles. These mechanical fire control systems permitted tanks to engage effectively at much longer ranges than in
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
, a critical consideration for the Army, expecting to enter the European battlefield outnumbered. Instead of a gunner's sight being slaved to the gun tube, the ballistic computer and drive computed the range and elevated the gun. The gunner's primary responsibility lay in keeping the sight on the target. The mechanical ballistic computer made a more accurate computation of range possible by mathematically accounting for such factors as vehicle cant and ammunition type. Many developmental range finders based on pulses of IR light, such as the Optical Tracking, Acquisition and Ranging (OPTAR) rangefinder of the T95 continued into 1957.


Autoloader systems

Another requirement of the T48 project was to explore the use of
autoloader An autoloader or auto-loader is a mechanical aid or replacement for the personnel that load ordnance into crew-served weapons without being an integrated part of the gun itself. The term is generally only applied to larger weapons, such as nava ...
s for the main gun as they became available. Preliminary experiments with a loading system using the T48 turret were unsuccessful due to the limited space and the need to line up the breech with the loading system after each firing. It also was dropped from consideration for use on the M48 but was further developed on the T69 tank as the 90 mm T178 gun. It was fitted with an eight-round auto-loader system mounted in an oscillating turret.


90 mm main gun

ARCOVE also involved the Ordnance Department with the goal of improving the 90 mm gun and its ammunition. The Army expected difficulties in engagements with the Soviet
IS-3 heavy tank The IS-3 (also known as Object 703) is a Soviet heavy tank developed in late 1944. Its semi-hemispherical cast turret (resembling that of an upturned soup bowl), became the hallmark of post-war Soviet tanks. Its pike nose design would also be ...
, since the M47's M36/T119 90 mm rifled main gun could not consistently penetrate its frontal armor, even with special armor-piercing capped (APC) or HEAT ammunition. Work was performed to address this by developing the improved T300E53 HEAT ammunition and the T137 series of hypervelocity armor-piercing discarding-sabot (HVAP-DS or simply APDS) ammunition for the M36 gun. The new APDS round could penetrate of homogeneous steel armor, angled at 30 degrees, at a distance of , but was not accepted for service. Instead it was decided to use an improved version of the 90 mm gun, the T139 for the M48 production tanks. It allowed for easier barrel changing and weighed less than the preceding M36/T119 gun. It was later standardized as the 90mm Gun M41 in February 1951.


Turret cupolas

The T48 and M48(Mod A) tanks featured a remote controllable machine gun mount as the tank commander's weapon on a pedestal, which allowed him to fire the .50 caliber (12.7 mm) M2HB machine gun from within the vehicle's turret. It used a 100-round ammunition box and could also be employed manually by the commander. However, servicing and reloading of the weapon required the tank commander to open his roof hatch and expose his head and upper torso. This remote-controllable mount was designated as the .50 Caliber Machine Gun Mount, M1 and designed by Chrysler Defense Engineering. By October 1954, the Army decided to amend the design of the tank by installing a cupola. During the production of M48s it was modified several times resulting in a wide mix of cupola styles among individual tanks. Afterwards it was renamed as the Cupola, Tank Commander's Caliber .50 Machine Gun, M1. The new tank commander cupola would allow the tank commander to aim and fire his weapon while remaining under armor protection via a remote controlled M2HB machine gun, however the commander had to open the cupola hatch and expose his head to reload or service the machine gun due to the limited headroom. These cupolas had a small rearward opening hatch and a single, non-removable vision block. They were designed by
Aircraft Armaments Incorporated AAI Corporation is an aerospace and defense development and manufacturing firm, located in Hunt Valley, Maryland, US. Formerly a wholly owned subsidiary of United Industrial Corporation, AAI was acquired by Textron in 2007. It currently operates ...
. Because of its smaller turret roof hatch opening those M1 cupolas retro-fitted to early production M48 Mod A turrets used an adaptor ring. The M1E1 cupola design used a G305 cupola riser with 9 non-removable vision blocks installed (some versions had 7 with the 2 rear blocks deleted) between the turret roof and the cupola. It also came with a new bulged hatch cover to provide the tank commander with more headroom and allowed him to reload the weapon while remaining under armor protection. A major drawback of both these cupolas was their inability to mount either daylight or infrared vision devices. The receiver of the M2HB took up a great deal of space in the already cramped cupola's interior. Also due to restraints in the cupola, smaller 50 round ammunition boxes were used. Development of its eventual replacement, the T9/M19 cupola of the XM60 tank was continued into and some M19 cupolas were retro-fitted to M48A5s to allow for the use of IR and daylight periscopes by the commander.


M48

Chrysler began building the Newark Tank Plant in Newark, Delaware, in March 1951 to produce the M48 while Chrysler Defense Engineering and ARCOVE continued advanced production engineering (APE) to evolve the design using the T48 prototypes at the OTAC Detroit Arsenal. In May 1952 Chrysler agreed to take control of a Government-Owned and Contractor Operated (GOCO) basis of the Newark Tank plant production facility with the US Government and continue production design refinement of the T48 at the OTAC Detroit Arsenal. To meet the urgent need for tanks, production contracts were also awarded to
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Division (Grand Blanc Tank Plant) and
Ford Motor Company Ford Motor Company (commonly known as Ford) is an American multinational automobile manufacturer headquartered in Dearborn, Michigan, United States. It was founded by Henry Ford and incorporated on June 16, 1903. The company sells automobi ...
(Livonia Tank Plant) to produce the tank in Michigan starting in April 1952. Also in July 1952 the Army awarded
American Locomotive Company The American Locomotive Company (often shortened to ALCO, ALCo or Alco) was an American manufacturer of locomotives, diesel generators, steel, and tanks that operated from 1901 to 1969. The company was formed by the merger of seven smaller locomo ...
a $200 million contract to start producing the tank in 1953 at the Schenectady Tank Plant in New York. All four companies were given initial production contracts in that same year for around 400 tanks each. The first Chrysler production tank was unveiled on 1 July 1952 as the 90mm Gun Tank M48 and christened the M48 Patton by Mrs. Beatrice Ayer Patton, widow of the late General
George S Patton George Smith Patton Jr. (November 11, 1885 – December 21, 1945) was a General (United States), general in the United States Army who commanded the Seventh United States Army in the Mediterranean Theater of Operations, Mediterranean Theater ...
. The M48 featured a gasoline-powered engine, different models were used depending on availability and manufacturer. Originally the M48(Mod A) that was built by Chrysler Defense at the OTAC Test Center (T48 Pilot #1) in 1951 used the Continental AV-1790-5B coupled to a General Motors CD-850-4A cross-drive transmission as used for the M47. The M48s built by American Locomotive used a Continental AV-1790-5C gasoline engine and either an Allison CD-850-4A or 4B cross-drive transmission. Additionally a two-cylinder, gasoline, air-cooled engine (sometimes referred to as the "Little Joe" by tank crews) was provided to power a 28 volt, 300 ampere generator when the main engine was not needed. Fuel capacity was providing a cruising range of about . The suspension consisted of six roadwheel pairs with a torsion bar suspension system and five return rollers. There was a dual compensating idler arm at the front, and dual auxiliary track tension wheels behind the last road wheels, using the T97E2 track assembly as were the previous M46 and M47 tanks. It had hydraulic shock absorbers mounted on the first, second and sixth roadwheel pairs (opposite of the M46 and M47). The bow mounted machine gun and its related crew station was eliminated thus providing more ammunition storage for the main gun. The driver's station was moved to the front center of the hull. The steering controls were redesigned. A large aircraft-styled steering wheel (replacing the wobble stick control of the M46 and M47) and placing the transmission range selector on the floor to the driver's right. Mod A hulls had a small oval overhead hatch for the driver. T48 Pilots #1 & 2 incorporated a mechanism that dropped the three periscope heads to provide clearance for the hatch door as it swung to the right, and the driver then had to reposition the periscopes by hand once the hatch was closed again. The vehicle did not have an
NBC protection Chemical, biological, radiological and nuclear defence (CBRN defence) are protective measures taken in situations in which chemical, biological, radiological or nuclear warfare (including terrorism) hazards may be present. CBRN defence consis ...
system for the crew and a fording depth of approximately . It had a crew of 4; the commander, gunner and loader were positioned in the turret and the driver stationed in the front center of the hull. The M48's turret consisted of a redesigned flat gun shield and standard pop-up hatch for the commander's station. The M48 Mod A turret design had smaller roof hatches for both the commander and loader. A .50 cal M2HB using a M1 remote control mount on a pedestal was available for the commander. When not in use, the machine gun mount could be stowed on a bracket welded to the turret roof in front of the loader. The M48's direct fire control system consisted of an M12/T41 stereoscopic rangefinder with a field of view of 5 degrees and magnification of x7.5, an azimuth indicator, an M20 gunner's periscope and a T13 super elevation actuator. Two main bearings are bolted to the mounting plate on the roof of the tank turret to support the range finder on steel radial ball bearings. A parallel gun linkage between the gun trunnion and the range finder assures that the line of sight of the range finder reproduces the exact motion of the gun in elevation. A .30 caliber M1919E4 machine gun was coaxially mounted to the main gun's left and was operated by the gunner. An M12 full field optical range finder was used, the same as the M47. The tank was not fitted with any night fighting or computerized fire control systems. Some early production M48s used a Y-shaped blast deflector on the barrel and carried 53 rounds. Eight ready rounds were stored in the left side of the turret bustle for the loader, the rest were stored inside safe containers in the hull. Tank crews complained that the Y-shaped fume extractor was found to be prone to snagging brush. It was replaced with a T-shaped model early in production. These early M48 tanks suffered from engine, transmission, track, and suspension problems. The first production vehicles suffered from excessive oil consumption and engine failures after only 1,000 mi (1,600 km). The gasoline engine managed only 0.33 mpg US (0.14 km/L), limiting range to 75 miles (121 km). The M12/T41 rangefinder was too fragile and often broke. Army Field Forces (AFF) found these tanks to be unsuitable for combat use in Europe and was regulated to limited use by US Army CONUS units until numerous shortcomings were corrected. Furthermore, some 120 hulls were found to have insufficient hull armor protection. These were denoted as the M48C and relegated by the
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(CONARC) for non-ballistic training use by the Armor School 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 res ...
to train crewmembers and maintenance personnel.


M48A1

The Army concluded in January 1952 that the T42 had failed as a tank capable of combat in Europe against Soviet tanks and reached the same conclusion in November 1953 for the M48 Mod A versions. The M48A1 focused on improving the engine and the vehicle's operational range and fixing numerous mechanical problems. To cope with the lack of range, an add-on modification allowed the use of 4 external jettisonable fuel drums of MOGAS (motor gasoline) that was mounted to the rear deck, extending the range to . This proved very unpopular with tank crews and operational range remained unsatisfactory. Further ARCOVE changes included a desire for the commander to observe and operate his weapons station while remaining under armor protection. At this same time the US Army Field Forces (AFF) declared the T42 medium tank unfit for production in November 1952, mainly due to serious shortcomings of its hull design. Ford's production of the M48 ended in August 1953 after a fire destroyed most of the Livonia Tank Plant. Testing and feedback from ARCOVE had uncovered the fact that the original driver's hatch design of the M48 Mod A hull's design (T48 pilots #1 and 2) tanks proved to be too small and made for an uncomfortable seating position for the driver when operating the tank with his hatch in the open position. To rectify this problem a new larger driver hatch was devised that was introduced into series production vehicles as early as possible. Also the driver's front vision block was removable and could be replaced with an infrared IR vision block. A redesigned power pack featured an AV-1790-7B gasoline engine and CD-850-4B transmission. The turret was fitted with the M1 cupola that enclosed the M2HB machine gun. Cupolas fitted on those tanks with early production Mod A turrets used an adapter ring. In April 1953, the Army standardized this configuration as the 90mm Gun Tank M48A1 Patton and originally applied this designation to both the early Mod A hull design and the Mod B hulls currently in series production. Between April 1952 and December 1954, nearly 7,000 M48s and M48A1s were produced, with production contracts for an additional 2,500 tanks to be built through 1956. Army units in Europe immediately received 2,120 of these early M48A1 tanks, but correction of ARCOVE defects discovered after production delayed the fielding of the remaining tanks. The Marines Corps however continued to use 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, command ...
. The M48A1's width proved too wide for many European tunnels, complicating rail transport. Operational readiness rates of M48-equipped units tended to be low. The tanks continued experiencing engine, transmission, track, and suspension problems, and the M12 stereoscopic rangefinder was uncomfortable to operate. However, the M48A1 was considered an even match for its Soviet counterpart, the T-54 and fielded to combat units in Europe. On 25 October 1954, the Army decided to amend its designation of the M48 tank. Thereafter, the tanks with the original Mod A hull design and the Chrysler-designed M1 remote-control machine gun mount attached to the tank commander's pop-up hatch would remain the 90mm gun tank M48. However, all those tanks with the Mod B hull (some production M48A1 tanks had the Mod B turret) and fitted with the new small turreted M1 cupola armed with a .50 caliber M2HB machine gun would be designated as the 90mm gun tank M48A1. M48A1 tanks with 5 return rollers and the ModB driver's hatch were modified to the M48A2 hull configuration. The hull's armor framing for the engine compartment was modified. In addition detachable headlights, armored boxes around the taillights, newly redesigned mudguards, an updated fuel delivery system and a tank infantry phone were added.


M48A2

The concurrent testing of the T48 and production of the M48 was the source of widespread debate among Congressional Budget Oversight committees. The Bureau of the Budget believed that the Army was not progressing with sufficient speed in its tank modernization program and recommended the immediate replacement of the M48A2 as well as better quality control. Under the ARCOVE's "single, efficient producer" model, Defense Secretary
Charles Erwin Wilson Charles Erwin Wilson (July 18, 1890 – September 26, 1961) was an American engineer and businessman who served as United States Secretary of Defense from 1953 to 1957 under President Dwight D. Eisenhower. Known as "Engine Charlie", he was prev ...
directed the Army to reduce the number of contractors producing each model of tank. In a new round of production bids for the M48A2,
General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...
underbid Chrysler, and in September 1953
Army Secretary The secretary of the Army (SA or SECARMY) is a senior civilian official within the United States Department of Defense, with statutory responsibility for all matters relating to the United States Army: manpower, personnel, reserve affairs, insta ...
Robert T. Stevens awarded GM's
Fisher Body Fisher Body was an automobile coachbuilder founded by the Fisher brothers in 1908 in Detroit, Michigan. A division of General Motors for many years, in 1984 it was dissolved to form other General Motors divisions. Fisher & Company (originally Allo ...
division a $200 million contract to become the sole producer of the M48A2 and started production at its
Grand Blanc Tank Plant The Grand Blanc Metal Center, also known as the Fisher Body Tank Plant, was a General Motors automotive body metal fabricating facility in Grand Blanc, Michigan. It was built to produce tanks, which it did in large numbers during World War II and ...
in Michigan in April 1953. The decision raised skepticism among lawmakers. Senator
Estes Kefauver Carey Estes Kefauver (; July 26, 1903 – August 10, 1963) was an American politician from Tennessee. A member of the Democratic Party, he served in the U.S. House of Representatives from 1939 to 1949 and in the Senate from 1949 until his d ...
noted the move would effectively leave GM as the only producer of light (the
M41 Walker Bulldog The M41 Walker Bulldog, officially 76-mm Gun Tank, M41, was an American light tank developed for armed reconnaissance purposes. It was produced by Cadillac between 1951 and 1954 and marketed successfully to the United States Army as a replaceme ...
) and medium tanks when the Chrysler production contract for M48A1 production was set to expire in April 1956. Months later Chrysler underbid GM in the new round of bidding. In September 1954 the Army awarded Chrysler an exclusive $160.6 million contract to restart production. In November 1955 the Army awarded
American Locomotive Company The American Locomotive Company (often shortened to ALCO, ALCo or Alco) was an American manufacturer of locomotives, diesel generators, steel, and tanks that operated from 1901 to 1969. The company was formed by the merger of seven smaller locomo ...
a $73 million contract to begin producing 600 M48A2s the next year at the Schenectady Tank Plant, New York. However Alco opted to wrap up its tank business when its contract ended in July 1956. In May the Army awarded Chrysler, the only bidder, a $119 million contract to continue production of the M48A2 at the Delaware Tank Plant. In December 1955 Chrysler took on orders initially intended for the American Locomotive after Alco opted production cutbacks to its tank program and became the only manufacturer of the tank by the end of 1956. During the ARCOVE Questionmark III conference in June 1957 it was predicted that the Congress would not approve the procurement of the M48A2 after the fiscal year 1959. However the ongoing T95 Tank Program was progressing slowly as its new technologies were being developed. Several ideas were proposed to replace the M48A2. General
Bruce C. Clarke Bruce Cooper Clarke (April 29, 1901 – March 17, 1988) was a United States Army general. He was a career officer who served in World War I, World War II, and the Korean War. He was the commander of Continental Army Command from 1958 to 1960, ...
wrapped competing and even conflicting desires in irony, observing that "We know exactly what we want. We want a fast, highly mobile, fully armored, lightweight vehicle. It must be able to swim, cross any terrain, and climb 30-degree hills. It must be air-transportable. It must have a simple but powerful engine, requiring little or no maintenance. The operating range should be several hundred miles. We would also like it to be invisible". Some ideas proposed were to utilize a
nuclear fission Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radio ...
power plant in the R-32 or a vapor-cycled power plant fueled by hydrocarbons in the Chrysler TV-8 tank. In response to these findings an eventual replacement for the M48A2 was recommended. ARCOVE and the Deputy Chief of Staff, Logistics (DCSLOG) submitted a proposal for a tank based on the M48A2 featuring improved firepower and a
compression ignition The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-calle ...
engine and started the design development of the XM60 in September 1957. The engine deck was redesigned with two large louvered doors that replaced the complicated grill work of the rear engine decks of the M48/M48A1 hull designs. This new rear hull arrangement on the M48A2 tank helped in cooling the engine and minimizing the infrared (heat) signature of the vehicle. The suspension system was simplified. The track tensioner arm was eliminated, modifications to the idler arm, the addition of bumper springs and friction snubbers, and a relocation of the air cleaner assembly. The number of return rollers was reduced to 3 per side. With the more compact AVI-1790-8 engine, additional fuel tanks were installed in the engine compartment, increasing fuel capacity to 335 gallons. Many older model M48A1s were rebuilt to this production configuration but retained their original 5 return rollers per side. The M48A2C saw improvements for the turret implementing the Mod B turret design with larger hatches for the commander and loader. The M12 rangefinder was replaced with a full-field coincidence model along with an improved turret control system. The M13 Fire Control System (FCS) consists of the M5A2 ballistic drive and mechanical M13A3 gun data computer which integrated barrel temperature data with an M17 coincidence range finder. The rangefinder is a double image coincidence image instrument used as the ranging device of the gunner's primary direct sighting and fire control system. The gunner is provided with an M20 day periscope with a magnification of x8 and an M105D day telescopic sight with a magnification of x8 and a field of view of 7.5 degrees. Range information from the rangefinder is fed into the ballistic computer through a shaft. The ballistic computer is a mechanically driven unit that permits ammunition selection, range correction, and superelevation correction by the gunner. The ballistic drive receives the range input and, through the use of cams and gears, provides superelevation information to the superelevation actuator. The superelevation actuator adds sufficient hydraulic fluid to the elevating mechanism to correctly position the gun. M48A2s were widely deployed to both the US Army and
US Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ...
fully replacing 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, command ...
in combat units as well as being exported to NATO allies and foreign governments. In 1967 M48A2 tanks still in service with National Guard units were upgraded to the A3 configuration. The M48A2 hull received modified armored boxing around the taillights, an updated fuel delivery system and a tank infantry phone (TIP). The gasoline engine was replaced with the AVDS-1790-2A.They remained in
CONUS ''Conus'' is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae.Bouchet, P.; Gofas, S. (2015). Conus Linnaeus, 1758. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...
training use with the
Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
through 1979.


M48A3

Citing high fuel consumption, poor low-end torque, and the extreme fuel flammability of gasoline engines, ARCOVE industrial representatives had expressed desires for a diesel engine for the M48 since 1953. Continental Motors and OTAC began to develop an experimental X-shaped vapour-cycled engine design powered by hydrocarbons in 1954 for the T95 tank but it remained unreliable. In June 1955, OTAC adopted the recommendations and allowed a
diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...
to be used if it significantly improved fuel economy. By August 1956 the diesel powered AVDS-1790 was recommended as meeting this requirement, and the Army requested the initial retrofitting of approximately 1,020 older M48A1s and A2s with the new engine in December. By February 1957, the Army had around 600 converted M48A3 Patton tanks and the Marine Corps had received 419. Because many M48A3 tanks were conversions from earlier models many details varied among individual examples of this type. M48A3 tanks could have either three or five support rollers on each side and might have either the early or later type headlight assemblies, some retained their earlier Mod A turrets and different cupola styles. During the
Hungarian Revolution of 1956 The Hungarian Revolution of 1956 (23 October – 10 November 1956; hu, 1956-os forradalom), also known as the Hungarian Uprising, was a countrywide revolution against the government of the Hungarian People's Republic (1949–1989) and the Hunga ...
, a Soviet
T-54A The T-54 and T-55 tanks are a series of Soviet main battle tanks introduced in the years following the Second World War. The first T-54 prototype was completed at Nizhny Tagil by the end of 1945.Steven Zaloga, T-54 and T-55 Main Battle Tanks ...
medium tank was driven onto the grounds of the UK's embassy in Budapest by the Hungarians. After a brief examination of this tank's armor and 100 mm gun by a British military attaché, the UK decided that their 20 pounder (84mm L/66.7) was apparently incapable of defeating it. There were also rumors of an even larger 115 mm gun in the works. In response to this the US Army started development of the XM60 to replace the M48 tank series and incorporating the ARCOVE recommendation of a more powerful main gun, the
Royal Ordnance L7 The Royal Ordnance L7, officially designated Gun, 105 mm, Tank, L7, is the basic model of the United Kingdom's most successful tank gun. The L7 is a 105 mm L/52 rifled design by the Royal Ordnance Factories intended for use in armoured fighting ve ...
(105mm T254). Instead of immediately getting a 105mm main gun, large stockpiles of 90 mm main gun ammunition and funding shortfalls that made it impossible to supply enough 105mm main gun rounds for all the planned tank conversions left the M48A3s with their M41 90mm guns. In addition to the conversion of older model M48s, Chrysler continued to build new vehicles. These used the M48A2 hull design (with 3 return rollers) and had redesigned fenders and mudguards, armored boxes around the taillights among other minor details. They were fitted with another re-designed commander's cupola, the M1E1. It had a modified hatch to allow more room in comparison to the previous M1 cupola and the two rear vision blocks were eliminated. The driver's steering wheel was replaced with a T-bar control and received a padded seat. M48 procurement for the Army ceased and M48A2 hull production ended in May 1961. The Newark Tank plant was closed in October. This newest version of the M48 series received the designation Tank, Combat, Full-Tracked; 90mm Gun, M48A3 on 19 March 1958. The M48A3 was withdrawn from Europe by October 1961, being replaced by the
M60 tank 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 ...
. As US armored and cavalry units rotated out of combat deployments to
South Vietnam South Vietnam, officially the Republic of Vietnam ( vi, Việt Nam Cộng hòa), was a state in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of th ...
most of their M48A3s were either directly transferred to the
South Vietnamese Army The Army of the Republic of Vietnam (ARVN; ; french: Armée de la république du Viêt Nam) composed the ground forces of the South Vietnamese military from its inception in 1955 to the Fall of Saigon in April 1975. It is estimated to have suffe ...
or to
Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...
.
FORSCOM United States Army Forces Command (FORSCOM) is the largest United States Army command. It provides expeditionary, regionally engaged, campaign-capable land forces to combatant commanders. Headquartered at Fort Bragg, North Carolina, FORSCOM cons ...
withdrew the M48A3 from combat service with both the
US 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, cla ...
and
US Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ...
in 1973, replacing them with the M60A1. Some M48A3s continued in service with National Guard units until 1979. Some were repurposed as
Armoured vehicle-launched bridge An armoured vehicle-launched bridge (AVLB) is a combat support vehicle, sometimes regarded as a subtype of military engineering vehicle, designed to assist militaries in rapidly deploying tanks and other armoured fighting vehicles across gap-t ...
s (AVLBs). Afterwards they were relegated to target use for the testing of radar and weapons systems until the mid 1990s. They were replaced in this role by the QM60.


M48A5

The last major US upgrade of the M48 tank series was the M48A5. This conversion upgrade was applied to M48A3 versions still in service with
Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
units in order to maintain the training levels of Guard units as well as using a commonality in ammunition amongst tanks. The upgrade featured the mounting of the M68 105mm gun carried in the M116 mount and the all-metric measurement M16 fire control system. The hull was upgraded by applying the M60A1 RISE Hull PIP Update Kit and incorporated as many of the components as possible.Rolf Hilmes, Main Battle Tanks: Developments in Design since 1945 (McLean, Va.: Pergamon-Brassey's International Defense Publishers, 1987), pp. 11–18; Zaloga and Loop, Modern American Armor Some of these included the retrofit of the AVDS-1790-2C RISE diesel engine incorporating TLAC engine panels coupled to with a CD-850-6 cross-drive transmission, a 300-gallon fuel capacity and the T142 track assembly, M13A1
NBC protection system Chemical, biological, radiological and nuclear defence (CBRN defence) are protective measures taken in situations in which chemical, biological, radiological or nuclear warfare (including terrorism) hazards may be present. CBRN defence consis ...
for the crew and the replacement of the .30 caliber M37 coaxial machine gun with the 7.62mm NATO M219/T175 machine gun. Because all M48A5 tanks were conversions from earlier models, many characteristics varied among individual examples of this type. M48A5 tanks could have either three or five support rollers on each side and might have either the early or later type headlight assemblies, some retained their earlier cupola styles. Starting in 1975 M48A3 tanks that were still in service with the
Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
were converted to the M48A5 standard. These tanks were initially converted from former M48A3 tanks using the M48A1 hull design (with 5 return rollers) and given the designation M48A5PI. But, after August 1976 these early hull conversions were further upgraded, the Product Improvement (PI) designation was removed, and these tanks were redesignated as the M48A5. By March 1978, 708 M48A5 tanks had been converted from the M48A1 hull model.:242 In conjunction with the conversion of M48A1 tank hulls, the conversion of M48A3s mated to M48A2 hulls (with 3 return rollers) to the M48A5 standard was also implemented in 1976. The conversion program ran from October 1975 to December 1979 with a total of 2,069 M48A3s converted to the A5 standard.:242 They were used by Guard units in
CONUS ''Conus'' is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae.Bouchet, P.; Gofas, S. (2015). Conus Linnaeus, 1758. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...
to maintain their training levels and proficiency. In May 1987, at Fort McCoy, 1st Battalion, 632nd Armor Regiment of the
Wisconsin Army National Guard The Wisconsin Army National Guard ("Guard") has dual state and federal roles, and is jointly funded and maintained by both governments. Its federal mission is to provide trained units to the United States Army in time of war or national emergenc ...
retired the last M48 tanks in the US military. The tanks were parked in a holding pen at the WI ARNG Mobilization and Training Equipment Site (MATES) and later transferred to the
Moroccan Army zgh, ⵜⴰⵙⵔⴷⴰⵙⵜ ⵜⴰⴳⵍⴷⴰⵏⵜ , image = , caption = Flag of the Royal Moroccan Army , start_date = active since: 1088 CE current form: 14 May 1956 , ...
. They were replaced in National Guard service by the M60A3. However many other countries continue to use these M48 models. Israel's wartime experiences with their M48/E48C
Magach Magach (, "battering-ram") is the designation of a series of tanks in Israeli service. The tanks are based on the American M48 and M60 Patton tanks. The name continued to be used for all Patton tanks, including the M60. Magach 1, 2, 3, 4 and 5 are ...
tanks spurred the
IDF IDF or idf may refer to: Defence forces * Irish Defence Forces * Israel Defense Forces *Iceland Defense Force, of the US Armed Forces, 1951-2006 * Indian Defence Force, a part-time force, 1917 Organizations * Israeli Diving Federation * Interac ...
to implement its own changes. These included replacing the M1 cupola with a low-profile "Urdan" type that mounted an
M60D The M60, officially the Machine Gun, Caliber 7.62 mm, M60, is a family of American general-purpose machine guns firing 7.62×51mm NATO cartridges from a disintegrating belt of M13 links. There are several types of ammunition approved for ...
machine gun for use by the tank commander. A second M60 machine gun was mounted on the turret roof for use by the loader. Internal ammunition stowage for the 105mm main gun was also increased to 54 rounds. Many of them were fitted with Blazer
ERA An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. Comp ...
panels.


E48 series

M48s for use in foreign military service were designated as the E48 series by the US Foreign Military Sales (FMS). These were essentially M48s with minor modifications requested by approved foreign purchasers. Some of the modifications included removal of the M1 cupola, different models of machine guns, electronics, fire control systems or radios, external armor plates, smoke launchers and power packs. Israel purchased many of these tanks forming the genesis of the
Magach Magach (, "battering-ram") is the designation of a series of tanks in Israeli service. The tanks are based on the American M48 and M60 Patton tanks. The name continued to be used for all Patton tanks, including the M60. Magach 1, 2, 3, 4 and 5 are ...
series. This series included the following designations: *E48: modified M48/M48A1 variant for non-US service *E48A: modified M48A2 variant for non-US service *E48B: modified M48A3 variant for non-US service *E48C: modified M48A5 variant for non-US service *E48 AVLB: modified M48 AVLB variant for non-US service


Combat service


Vietnam War

The M48 saw extensive action with the US military during the Vietnam War. Over 600 Pattons would be deployed with US forces during that war. The initial M48s first landed with the US Marine 1st and 3rd Tank Battalions in 1965, with the 5th Marine Tank Battalion later becoming a back-up/reinforcement unit. The remaining Pattons deployed to South Vietnam were in three US Army battalions, namely the 1-77th Armor near the
DMZ A demilitarized zone (DMZ or DZ) is an area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities, or personnel. A DZ often lies along an established frontier or bounda ...
(67 M48A2C (23 tanks supplied from US Army Training Center 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 res ...
, and 44 tanks from
Letterkenny Army Depot Letterkenny Army Depot (originally Letterkenny Ordnance Depot), the Center of Industrial and Technical Excellence (CITE) for Air Defense and Tactical Missile Systems, was established in 1942. The Depot is under the command structure of the U.S. A ...
) tanks were used by the 77th Armor from August 1968 to January 1969. These were later replaced with M48A3s), the 1-69th Armor in the Central Highlands of central South Vietnam and the 2-34th Armor positioned near the
Mekong Delta The Mekong Delta ( vi, Đồng bằng Sông Cửu Long, lit=Nine Dragon River Delta or simply vi, Đồng Bằng Sông Mê Kông, lit=Mekong River Delta, label=none), also known as the Western Region ( vi, Miền Tây, links=no) or South-weste ...
. Each battalion consisted of approximately 57 tanks. M48s were also used by Armored Cavalry Squadrons in Vietnam until replaced by
M551 Sheridan The M551 "Sheridan" AR/AAV ( Armored Reconnaissance/Airborne Assault Vehicle) was a light tank developed by the United States and named after General Philip Sheridan, of American Civil War fame. It was designed to be landed by parachute and to sw ...
Armored Reconnaissance Airborne Assault Vehicles (ARAAV) in the Divisional Cavalry Squadrons. M48A3 tanks remained in service with the
11th Armored Cavalry Regiment The 11th Armored Cavalry Regiment ("Blackhorse Regiment") is a unit of the United States Army garrisoned at the Fort Irwin National Training Center in California. Although termed an armored cavalry regiment, it is being re-organized as a multi ...
until the unit was withdrawn from the conflict. Some M48 variants, nicknamed "Zippos", or M67A1
Flame tank A flame tank is a type of tank equipped with a flamethrower, most commonly used to supplement combined arms attacks against fortifications, confined spaces, or other obstacles. The type only reached significant use in the Second World War, dur ...
s were used by some U.S Marine Corps units, but the U.S. Army no longer used them. From 1965 to 1968, 120 US M48A3 tanks were written off. The M48 Patton has the distinction of playing a unique role in an event that was destined to radically alter the conduct of armored warfare. When US forces commenced redeployment operations, many of the M48A3 Pattons were turned over to the
Army of the Republic of Vietnam The Army of the Republic of Vietnam (ARVN; ; french: Armée de la république du Viêt Nam) composed the ground forces of the Republic of Vietnam Military Forces, South Vietnamese military from its inception in 1955 to the Fall of Saigon in April ...
(ARVN) forces, in particular creating the battalion-sized ARVN 20th Tank Regiment; which supplemented their
M41 Walker Bulldog The M41 Walker Bulldog, officially 76-mm Gun Tank, M41, was an American light tank developed for armed reconnaissance purposes. It was produced by Cadillac between 1951 and 1954 and marketed successfully to the United States Army as a replaceme ...
units. During the
North Vietnam North Vietnam, officially the Democratic Republic of Vietnam (DRV; vi, Việt Nam Dân chủ Cộng hòa), was a socialist state supported by the Soviet Union (USSR) and the People's Republic of China (PRC) in Southeast Asia that existed f ...
ese
People's Army of Vietnam The People's Army of Vietnam (PAVN; vi, Quân đội nhân dân Việt Nam, QĐNDVN), also recognized as the Vietnam People's Army (VPA) or the Vietnamese Army (), is the military force of the Vietnam, Socialist Republic of Vietnam and the ...
(PAVN)
Easter Offensive The Easter Offensive, also known as the 1972 spring–summer offensive ('' vi, Chiến dịch Xuân–Hè 1972'') by North Vietnam, or the red fiery summer (') as romanticized in South Vietnamese literature, was a military campaign conducted b ...
in 1972, tank clashes between PAVN
T-54 The T-54 and T-55 tanks are a series of Soviet main battle tanks introduced in the years following the World War II, Second World War. The first T-54 prototype was completed at Nizhny Tagil by the end of 1945.Steven Zaloga, T-54 and T-55 Mai ...
/
PT-76 The PT-76 is a Soviet amphibious light tank that was introduced in the early 1950s and soon became the standard reconnaissance tank of the Soviet Army and the other Warsaw Pact armed forces. It was widely exported to other friendly states, like ...
and ARVN M48/M41 units became commonplace. On 23 April 1972, tankers of the 20th Tank Regiment were attacked by a PAVN infantry-tank team, which was equipped with the new '' 9M14M Malyutka'' (NATO designation: Sagger) wire-guided
anti-tank missile An anti-tank guided missile (ATGM), anti-tank missile, anti-tank guided weapon (ATGW) or anti-armor guided weapon is a Missile guidance, guided missile primarily designed to hit and destroy Armoured fighting vehicle, heavily armored military v ...
. During this battle, one M48A3 Patton tank and one M113 Armored Cavalry Assault Vehicle (ACAV) were destroyed, becoming the first losses to the Sagger missile; losses that would echo on an even larger scale a year later during the
Yom Kippur War The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was an armed conflict fought from October 6 to 25, 1973 between Israel and a coalition of Arab states led by Egy ...
in the Middle East in 1973. By 2 May, the 20th Tank Regiment had lost all of their tanks to enemy fire. During the first month of the
First Battle of Quảng Trị The First Battle of Quảng Trị ( vi, Chiến dịch Trị Thiên) resulted in the first major victory for the People's Army of Vietnam (PAVN) during the Easter Offensive of 1972. Quảng Trị Province was a major battleground for the opposin ...
, all ARVN M48 Pattons (100 tanks) were lost. The M48s performed admirably in South Vietnam in the infantry-support role. However, there were few actual tank versus tank battles. One was between the US 1-69th Armor and PT-76 light amphibious tanks of the PAVN 202nd Armored Regiment at
Ben Het Camp Ben Het Camp (also known as Ben Het Special Forces Camp, Ben Het Ranger Camp and FSB Ben Het) is a former U.S. Army and Army of the Republic of Vietnam (ARVN) base northwest of Kon Tum in the Central Highlands of Vietnam. The camp was notable ...
in March 1969. The M48s provided adequate protection for its crew from small arms, mines, and
rocket-propelled grenade A rocket-propelled grenade (RPG) is a shoulder-fired missile weapon that launches rockets equipped with an explosive warhead. Most RPGs can be carried by an individual soldier, and are frequently used as anti-tank weapons. These warheads are a ...
s. South Vietnamese M48s and M41s fought in the
1975 Spring Offensive The 1975 spring offensive ( vi, chiến dịch mùa Xuân 1975), officially known as the general offensive and uprising of spring 1975 ( vi, Tổng tiến công và nổi dậy mùa Xuân 1975) was the final North Vietnamese campaign in the Vie ...
. In several incidents, the ARVN successfully defeated PAVN
T-34 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 warfare, anti-tan ...
and
T-55 The T-54 and T-55 tanks are a series of Soviet main battle tanks introduced in the years following the Second World War. The first T-54 prototype was completed at Nizhny Tagil by the end of 1945.Steven Zaloga, T-54 and T-55 Main Battle Tanks ...
tanks and even slowed the North's offensive. However, due to shortages of fuel and munitions faced by the South Vietnamese military because of the US Congress-placed ban on the further funding and supply of military equipment and logistics to the country, the American-made tanks soon ran out of ammunition and fuel and were quickly abandoned to the PAVN, which then put them in their service after the war ended in May 1975. In total, 250 of the ARVN's M48A3s were destroyed and captured and those captured (at least 30) were only used briefly before being phased out and turned into war-memorial displays all over Vietnam. M48s, along with Australian 20 pounder (84mm)-gunned Centurions of the 1st Armoured Regiment, were the only vehicles in use by the anti-communist side in the Vietnam War that could reasonably protect their crews from
land mine A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automati ...
s. They were often used for minesweeping operations along Highway 19 in the Central Highlands, a two-lane paved road between
An Khe An, AN, aN, or an may refer to: Businesses and organizations * Airlinair (IATA airline code AN) * Alleanza Nazionale, a former political party in Italy * AnimeNEXT, an annual anime convention located in New Jersey * Anime North, a Canadian an ...
and
Pleiku Pleiku is a city in central Vietnam, located in the Central Highlands region. It is the capital of the Gia Lai Province. Many years ago, it was inhabited primarily by the Bahnar and Jarai ethnic groups, sometimes known as the Montagnards or De ...
. Daily convoys moved both ways along Highway 19. These convoys were held up each morning while the road was swept for mines. At that time, minesweeping was done by soldiers walking slowly over the dirt shoulders of the highway with hand-held mine detectors. During this slow process, convoys would build up into a dangerously-inviting target for the enemy, especially their guerillas and partisans. As a result, a faster method was improvised, the ''"Thunder Run"'', in which one M48 lined up on each side of the road, with one track on the dirt shoulder and the other track on the asphalt, and then with all guns firing, they raced to a designated position miles away. If the M48s made it without striking a mine, the road was clear and the convoys could proceed. In most cases, an M48 that struck a land mine in these operations only lost a road wheel or two in the explosion; seldom was there any hull damage that would be considered a
catastrophic kill A catastrophic kill, K-Kill or complete kill is damage inflicted on an armored vehicle that renders it permanently non-functional (most commonly via fire and/or an explosion). Among tank crewmen it is also commonly known as a ''brew up'', coined ...
. Supply of M48A3 tanks to South Vietnam: * 1971: 54. * May 1972: 120. * October 1972: 72. * November 1972: 59. * January 1973 - July 1974: 16. * Total: at least 321 M48 tanks. According to official US data 343 M48s were delivered to the ARVN up to March 1975., all of which were destroyed or captured. The United States lost at least 123 M48 tanks (non-repairable) during the war. As a result, the United States with South Vietnam lost about 500 M48 tanks.


Indo-Pakistani wars

M47s and M48s were used in tank warfare by the
Pakistan Army The Pakistan Army (, ) is the Army, land service branch of the Pakistan Armed Forces. The roots of its modern existence trace back to the British Indian Army that ceased to exist following the partition of India, Partition of British India, wh ...
against the
Indian Army The Indian Army is the land-based branch and the largest component of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Army, and its professional head is the Chief of Army Staff (COAS), who is a four- ...
's Soviet T-55s, British Centurions and US M4 Sherman tanks in both the
Indo-Pakistani War of 1965 The Indo-Pakistani War of 1965 or the Second Kashmir War was a culmination of skirmishes that took place between April 1965 and September 1965 between Pakistan and India. The conflict began following Pakistan's Operation Gibraltar, which was d ...
as well as the following war in 1971 with at least some good results. During
Operation Grand Slam Operation Grand Slam was a key military operation of the Indo-Pakistani War of 1965. It refers to a plan drawn up by the Pakistan Army in May 1965 that consisted of an attack on the vital Akhnoor Bridge in Indian-administered Jammu and Kashm ...
, Pakistani tank forces, composed mainly of M47 and M48 Patton tanks, thrust through the Indian defence-lines very quickly and swiftly defeated back Indian Army armoured counter-attacks. The Pakistanis used approximately a division's worth of tanks in the operation, although not all were Pattons, with upgraded Shermans included as well. In contrast, Pakistan's Patton tank failed to live up to its high expectations in the
Battle of Asal Uttar The Battle of Asal Uttar (Hindi : आसल उत्ताड़ , Punjabi: ਆਸਲ ਉਤਾੜ) was one of the largest tank battles fought during the Indo-Pakistani War of 1965. It was fought from 8 to 10 September 1965, when the Pakist ...
in September 1965, where about 97 Pakistani tanks were lost, the majority of them being Pattons (M47s and M48s). Later, the Patton tank was the main Pakistani tank at the
Battle of Chawinda {{Infobox military conflict , width = 380px , image = File:Sculpture showing Indo-Pak war.jpg , image_size = 300px , caption = Sculpture showing the Indo-Pakistani War {{clear {{OSM Location map , co ...
and its performance at that battle was deemed satisfactory against Indian armour. The Patton was later used by Pakistan again, this time, in the
Indo-Pakistani War of 1971 The Indo-Pakistani War of 1971 was a military confrontation between India and Pakistan that occurred during the Bangladesh Liberation War in East Pakistan from 3 December 1971 until the Pakistani capitulation in Dhaka on 16 Decem ...
. A counter-attack led by the 13th Lancers and the 31st Cavalry army units was defeated by the Indian 54th Division around Battle of Barapind in December 1971. The Pakistan Army Patton tanks could not stop an assault by Indian T-55 Soviet-supplied tanks of the 2nd Armored Brigade. At least 9 of the Pattons were destroyed by T-55 tanks during the battle of Nainakot. It total, more than 80 Pakistani Pattons were knocked out during battle, mainly by Centurion and T-55 fire. India later set up a temporary war-memorial so named "''Patton Nagar''" (or "Patton City") in
Khemkaran Khem Karan is a town and a nagar panchayat, just 56km from Tarn Taran Sahib in Tarn Taran district of Patti tehsil of the Majha region of Indian state of Punjab. It was the site of a major tank battle in 1965. The Battle of Asal Uttar was the ...
District in Punjab, where the captured Pakistani Patton tanks were displayed for a short period of time before being scrapped or sent all across India for use as war monuments and military memorials. Analysing their overall performance in their wars with India, the Pakistani military held that the Patton was held in reasonably-high esteem by both sides and that combat-tactics were to blame for their utter defeat and the following debacle at Asal Uttar. However, a post-war US study of the tank battles in South Asia concluded that the Patton's armor could, in fact, be penetrated by the 20-pounder tank gun (84 mm) of the Centurion (later replaced by the even-more successful L7 105mm gun on the Mk. 7 version which India also possessed) as well as the 75 mm tank gun of the
AMX-13 The AMX-13 is a French light tank produced from 1952 to 1987. It served with the French Army, as the Char 13t-75 Modèle 51, and was exported to more than 26 other nations. Named after its initial weight of 13 tonnes, and featuring a tough and r ...
light tank.


Middle East

M48s were also used with mixed results during the
Six-Day War The Six-Day War (, ; ar, النكسة, , or ) or June War, also known as the 1967 Arab–Israeli War or Third Arab–Israeli War, was fought between Israel and a coalition of Arab world, Arab states (primarily United Arab Republic, Egypt, S ...
of 1967. On the
Sinai Sinai commonly refers to: * Sinai Peninsula, Egypt * Mount Sinai, a mountain in the Sinai Peninsula, Egypt * Biblical Mount Sinai, the site in the Bible where Moses received the Law of God Sinai may also refer to: * Sinai, South Dakota, a place ...
battlefront,
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
i M48s upgunned with the then-advanced 105 mm L7 rifled tank gun were used with considerable success against
Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...
ian IS-3s, T-54s/T-55s, T-34/85s and
SU-100 The SU-100 ('' Samokhodnaya Ustanovka'' 100) was a Soviet tank destroyer armed with the D-10S 100 mm anti-tank gun in a casemate superstructure. It was used extensively during the last year of World War II and saw service for many years af ...
s supplied by the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
during the 1950s and the 1960s (such as during the Second Battle of Abu-Ageila. On the Sinai front, Israel lost 50 M48 tanks of 117: 39 M48A2C and 11 M48A3. However, on the
West Bank The West Bank ( ar, الضفة الغربية, translit=aḍ-Ḍiffah al-Ġarbiyyah; he, הגדה המערבית, translit=HaGadah HaMaʽaravit, also referred to by some Israelis as ) is a landlocked territory near the coast of the Mediter ...
war-front,
Jordan Jordan ( ar, الأردن; tr. ' ), officially the Hashemite Kingdom of Jordan,; tr. ' is a country in Western Asia. It is situated at the crossroads of Asia, Africa, and Europe, within the Levant region, on the East Bank of the Jordan Rive ...
ian M48s (Jordan was also a user of the M48 Patton as was Israel at the same time-period) were often defeated by Israeli 105mm-armed Centurions and WWII-era upgraded M4 Shermans - M-51s upgunned with French-built 105 mm tank guns, not to be confused with the British L7 105mm tank gun. In purely-technical terms, the Pattons were far superior to the much-older Shermans, with shots at more than 1,000 meters simply glancing off the M48's armor. However, the 105 mm main gun of the Israeli Shermans fired a
HEAT In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is al ...
round designed to defeat the Soviet
T-62 tank The T-62 is a Soviet main battle tank that was first introduced in 1961. As a further development of the T-55 series, the T-62 retained many similar design elements of its predecessor including low profile and thick turret armour. In contras ...
, which was the USSR's response to the M48's successor in US service, the
M60 tank 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 ...
. The Jordanian Pattons' general failure on the West Bank could also be attributed to excellent Israeli
air superiority Aerial supremacy (also air superiority) is the degree to which a side in a conflict holds control of air power over opposing forces. There are levels of control of the air in aerial warfare. Control of the air is the aerial equivalent of c ...
. The Israeli Army captured about 100 Jordanian M48 and M48A1 tanks and pressed them into service in their own units after the war, as were the Jordanian M113 APCs they seized during the war. Israel used 445 M48 tanks in 1973 during the
Yom Kippur War The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was an armed conflict fought from October 6 to 25, 1973 between Israel and a coalition of Arab states led by Egy ...
. From 15 to 18 October, M48 tanks participated in the largest tank battle of the war -
Battle of the Chinese Farm A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force ...
. The battle involved the Egyptian 21st Armored Division (136 T-55s), 25th Armored Brigade (75 T-62s), tank battalion (21 T-55s) from 24th Armored Brigade (in the total 232 Egyptian tanks) and the Israeli 143rd and 162nd Armored Divisions (about 440 tanks). The battle ended with an Israeli victory, but both sides lost a huge number of tanks in this battle (each side lost about two hundred tanks). On the night of 15/16 October, the Israeli 14th Brigade of the 143rd Division lost 70 tanks out of 97. Between the 16th at 0900 and the 17th at 1400, the Israeli 143rd and 162nd Divisions have lost 96 tanks. As of 18 October the Egyptian 21st Armored Division had no more than 40 tanks remaining of an original 136 tanks available at the start of the battle, 25th Armored Brigade had only 10 tanks of an original 75 T-62s. Aside from the
Israel Defense Forces The Israel Defense Forces (IDF; he, צְבָא הַהֲגָנָה לְיִשְׂרָאֵל , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the Israel, State of Israel. It consists of three servic ...
(IDF), the M48 was also operated by the
Lebanese Army ) , founded = 1 August 1945 , current_form = 1991 , disbanded = , branches = Lebanese Ground ForcesLebanese Air Force Lebanese Navy , headquarters = Yarze, Lebanon , flying_hours = , websit ...
, the Christian
Lebanese Forces The Lebanese Forces ( ar, القوات اللبنانية '')'' is a Lebanese Christian-based political party and former militia during the Lebanese Civil War. It currently holds 19 of the 128 seats in Lebanon's parliament and is therefore th ...
militia, the
Druze The Druze (; ar, دَرْزِيٌّ, ' or ', , ') are an Arabic-speaking esoteric ethnoreligious group from Western Asia who adhere to the Druze faith, an Abrahamic, monotheistic, syncretic, and ethnic religion based on the teachings of ...
Progressive Socialist Party The Progressive Socialist Party ( ar, الحزب التقدمي الاشتراكي, translit=al-Hizb al-Taqadummi al-Ishtiraki) is a Lebanese political party. Its confessional base is in the Druze sect and its regional base is in Mount Lebanon ...
's
People's Liberation Army The People's Liberation Army (PLA) is the principal military force of the People's Republic of China and the armed wing of the Chinese Communist Party (CCP). The PLA consists of five service branches: the Ground Force, Navy, Air Force, ...
militia, the Shia
Amal militia The Lebanese Resistance Regiments ( ar, أفواج المقاومة اللبنانية , ''ʾAfwāj al-Muqāwama al-Lubnāniyya'', ʾAMAL), also designated Lebanese Resistance Battalions, Lebanese Resistance Detachments, Lebanese Resistance Leg ...
and the
South Lebanon Army The South Lebanon Army or South Lebanese Army (SLA; ar, جيش لبنان الجنوبي, Jayš Lubnān al-Janūbiyy), also known as the Lahad Army ( ar, جيش لحد, label=none) and referred to as the De Facto Forces (DFF) by the United Nat ...
. All the tanks seized by the militias were captured from the Army's mostly Druze 4th Infantry Brigade which collapsed due to sectarian divisions in 1983. On 10 June 1982, eight Israeli M48A3s, two M60A1s and at least three M113 APCs were lost in a successful ambush by Syrian T-55 tanks and
BMP-1 The BMP-1 is a Soviet amphibious tracked infantry fighting vehicle, in service 1966–present. BMP stands for ''Boyevaya Mashina Pyekhoty 1'' (russian: link=no, Боевая Машина Пехоты 1; БМП-1), meaning "infantry fighting ...
infantry fighting vehicles (IFVs) during the Battle of Sultan Yacoub in 1982. The Lebanese Army still operates about 100 M48s. In 2007, during the 2007 North Lebanon conflict, Lebanese Army M48s shelled militant outposts located in a refugee camp. Together with the M47, M48 tanks were used by the
Turkish Armed Forces The Turkish Armed Forces (TAF; tr, Türk Silahlı Kuvvetleri, TSK) are the military forces of the Republic of Turkey. Turkish Armed Forces consist of the General Staff, the Land Forces, the Naval Forces and the Air Forces. The current Chi ...
during the Turkish invasion of Cyprus in 1974. The
Turkish Armed Forces in Northern Cyprus The Cyprus Turkish Peace Force Command ( tr, Kıbrıs Türk Barış Kuvvetleri Komutanlığı) is the Turkish garrison in Cyprus. In 1974 Turkish troops Turkish invasion of Cyprus, invaded Cyprus following a 1974 Cypriot coup d'état, Greek Cy ...
continue to use M48 tanks today. When the
Kurdish–Turkish conflict Kurdish nationalism, Kurdish nationalist uprisings have periodically occurred in Turkey, beginning with the Turkish War of Independence and the consequent transition from the Ottoman Empire to the modern Turkish state and continuing to the prese ...
began, the Turkish Armed Forces had a number of M48s. These were used throughout the 1980s and the 1990s as static artillery and was used in defending military-base perimeters from enemy attacks. Iranian M48 tanks were used widely in the
Iran–Iraq War The Iran–Iraq War was an armed conflict between Iran and Iraq that lasted from September 1980 to August 1988. It began with the Iraqi invasion of Iran and lasted for almost eight years, until the acceptance of United Nations Security Council ...
from 1980 to 1988, where they faced Iraqi T-55s, T-62s and T-72s, alongside M60 Pattons, in fierce and harsh combat with their Iraqi foes, with mixed results. M48s of the 37th Armored Brigade were used in the Battle of Abadan. About 150 of M48s were lost in this tank battle alone.


Africa

In 1973, Morocco took delivery of its first M48A3s. By the end of the 1970s, further deliveries of M48A5 had occurred and the upgrade to M48A5 was achieved locally with the aid of US consultants. In 1987, a final shipment of 100 M48A5 tanks from the Wisconsin National Guard was delivered to the Moroccan army. There are unconfirmed reports of deliveries of Israeli M48A5s during the 1980s. The tanks were used in the Western Sahara desert against Polisario guerrillas. Pakistan used M48 Pattons while reinforcing American troops during the Battle of Mogadishu (1993), Battle of Mogadishu in 1993.


Variants

*T48: Developmental prototypes designed in 1950 and used between 1951 and 1955. *M48: Initial production variant with Mod A hull & turret designs featuring M41 90mm gun, M1 remote-controllable machine gun mount and AV-1790-5 or -7 gasoline engine. Deemed not fit for combat use in Europe, relegated to
CONUS ''Conus'' is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae.Bouchet, P.; Gofas, S. (2015). Conus Linnaeus, 1758. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...
use only. **M48C: M48 with incorrect hull ballistic protection. Relegated by CONARC to the United States Army Armor School, Armored Forces School 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 res ...
for non-ballistic training of crewmembers and maintenance personnel. *M48A1: First variant to have M1 cupola and Mod B hull design. Fitted with external fuel drums to extend its range. *M48A2: Redesigned hull with simplified suspension system and louvered engine access doors, AVI-1790-8 fuel-injected gasoline engine and Mod B turret design. **M48A2C: M48A2 fitted with M13 fire control system *M48A3: Featured AVDS-1790-2A diesel engine and M1E1 cupola. Withdrawn from combat use in 1973, replaced by M60A1. *M48A4: Proof of concept prototype mating the T95 Medium Tank, T95E4 turret to the M48A2 hull. *M48A5PI: Early conversions of M48A1 hulls to the M48A5 standard. Retained the AVDS-1790-2A engine, CD-850-5A transmission and T97 track. All were further upgraded in 1976 with components from the M60A1 RISE Hull PIP Update Kit and redesignated M48A5. *M48A5: Featured M68 105mm gun, all metric-measurement M16 FCS, coax machine gun upgraded to M219 and a crew NBC protection system. Hull component upgrades included AVDS-1790-2C RISE engine, TLAC engine panels and T142 track. Some were fitted with the M19 cupola. All were relegated to the
Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
for CONUS training use. Replaced by the M60A3. *QM48: M48A3 designation for target vehicles. Withdrawn from use by 1994 and replaced in role by QM60.


Specialized

*M48 AVLB: armored vehicle-launched bridge Former M48A3 with 60-foot (18 meters) scissors bridge mated to the M48A1/M48A2 hull. Most were upgraded with the M60 Hull PIP Update Kit. *M60 AVLB#Israel, M48 Tagash AVLB: Israeli variant of the M48 AVLB. Former Jordanian M48A2s. Upgraded with Merkava-based track and suspension, upgraded engine and two ''Tzmed'' tandem bridge sections. *M67 Flame Thrower Tank "Zippo": An M48 tank armed with a flame thrower and a mock barrel and deflector. Named after a popular Zippo, cigarette lighter. *Keiler (mine flail), M48 ''Minenräumpanzer Keiler'': German mine flail variant based on the M48A2 hull with upgraded 986 hp German MTU 871 Ka501 diesel engine and Renk HSWL 284 M transmission. As of 2007 they were still in service. *M48 Marksman SPAAG (Self-Propelled Anti-Aircraft Gun): British short range Marksman anti-aircraft system designed by GEC-Marconi. Armed with two Oerlikon GDF, Oerlikon 35mm cannon mated to M48A2 hull. Not accepted for US service. *M247 Sergeant York, M247 Sergeant York DIVAD (Division Air Defense): A short range air defense system designed by Ford Aerospace armed with 2 Bofors 40 mm gun, Bofors 40mm cannons mounted on the M48A1 hull incorporating component upgrades from the M60A1 Hull PIP Kit. Canceled by 1985. *M48T5 Tamay: Turkish combat support vehicles based on the M48A2 hull designed by TLFC Kayseri and introduced at the IDEF Show at Ankara, Turkey in December 2005. **M48T5 ARV (armored recovery vehicle): The turret has been replaced with a welded armored superstructure that provides protection from shell fragments and small arms fire and a front-mounted stabilizer/dozer blade. It is fitted with a hydraulically operated winch with a maximum rated capacity of 70 tons and an auxiliary winch with a capacity of two tons. Both winches are located at the front of the vehicle. **M48T5 CEV (Combat Engineer Vehicle): Visually similar to the ARV and has the same two winches and a front-mounted stabilizer/dozer blade. The boom is mounted on the right side of the hull at the front but has an extendable jib that can be fitted with various attachments to meet specific engineer requirements, when used as a crane it has a lift capacity of seven tons. The boom can be traversed through 195 degrees. ''Additional equipment'' *List of U.S. military vehicles by model number#Tankdozer kits, M8 Bulldozer Kit for the M48 tank series (SNL G278): The M8 bulldozer installed on the M48 series tank will increase the vehicle's weight by 4.45 tons (4.04 metric tons). It is controlled by the driver.


International

*E48 series: Foreign Military Sales designation for the M48 series **E48: modified M48/M48A1 variant for non-US service **E48A: modified M48A2 variant for non-US service **E48B: modified M48A3 variant for non-US service **E48C: modified M48A5 variant for non-US service **E48 AVLB: modified M48 AVLB variant for non-US service *Israeli variants: Many of the Israeli M48s have been upgraded with additional reactive or passive armor. These up-armored versions are referred to as the
Magach Magach (, "battering-ram") is the designation of a series of tanks in Israeli service. The tanks are based on the American M48 and M60 Patton tanks. The name continued to be used for all Patton tanks, including the M60. Magach 1, 2, 3, 4 and 5 are ...
series. **Magach 1: Israeli M48A1/E48 variant armed with M41 90mm main gun. Different configurations exist. **Magach 2: Israeli M48A2/E48A variant armed with M41 main gun Some fitted with ERA and Urdan cupola. Different configurations exist. **Magach 3: Modernized Israeli M48A1/A2/A3. Armed with British 105mm L7A1 cannon, Urdan low profile commander's cupola, new communication suite and a AVDS-1790-2A 750 hp diesel engine. Most were eventually fitted with Blazer ERA. Different configurations exist. **Magach 5: Generally similar to the Magach 3, but with upgraded AVDS-1790-2D engine and CD-850-6A transmission. Most were fitted with Blazer ERA and Urdan cupola. Different configurations exist. *Spanish variants: **M48A3E: M48A3/E48B variant with M68E1 105mm main gun, M17B1C rangefinder, M13A4 ballistic computer and AN/VSS-1(V)1 IR searchlight. **M48A5E1: M48A5E with upgraded engine **M48A5E2: Hughes Mk7 fire control system with laser rangefinder & solid state ballistic computer and passive night vision equipment. **M48A5E3: Prototype vehicle. M48A5E2 fitted with gunner's IR thermal sight and a new gun stabilization system *South Korean variants: **M48A3K: South Korean modified M48A3/E48C fitted with Laser Tank Fire Control System (LTFCS) **M48A5K1: 105mm KM68A1 main gun, digital fire control system, M1 cupola and steel side skirts **M48A5K2: Same as K1 but fitted with Urdan low profile cupola. **M48A5KW: Same as K2 but without side skirt armor *Taiwanese variants: **M48A3 (Taiwan variant): M48/E48B variant with lower fuel capacity, Operational range lowered to 194 miles (312 km) **CM-11 Brave Tiger, M48H/CM-11 Brave Tiger: M48/M60 hybrid variant mating the M48A3 turret to the M60A1 RISE hull. Included improved gun stabilization and new fire control system. **CM-12 Tank, CM-12: M48A3/E48B variant upgraded with CM-11 FCS and weapons systems. Lower fuel capacity, range 126 miles (203 km). *Turkish variants: **M48A5T1: Turkish M48A5/E48C variant. Modifications include M68E1 105mm gun, M19 FCS, a passive night vision system and AVDS-1790-2C RISE diesel engine. Some fitted with M19 cupola. **M48A5T2: upgraded to M21 FCS, laser range finder and TTS thermal sight for the gunner. *West German variants: As a member of NATO, West Germany acquired a large fleet of M48 tanks. **Kampfpanzer M48A2CGA1: West German M48A2/E48A armed with 90mm M41 main gun with a cylindrical blast deflector. Some were fitted with the M8 Bulldozer kit. **Kampfpanzer M48A2GA2: West German upgrade mounting Royal Ordnance L7, L7A3 105mm cannon with new cast gun mantlet and MG3 machine gun ring mounted on new circular cast commander's cupola, along with the MTU 871 diesel engine. **M48 G Export: West German upgrade for export, similar to the M48A2GA2 and equipped with MTU Friedrichshafen, MTU MB-837 Ea-500 diesel engine. Turkey had its five M48A1 tanks upgraded in Germany and bought another 165 upgrade kits. **Super M48: West German modular upgrade offered in 1994 by Krauss Maffei and Wegmann and other partners for the M48A2/A3. Upgrades included Applique armor panels for the turret, NBC protection system, MOLF 48 fire control system, thermal sight, laser rangefinder, MTU MB-837 Ka-501 diesel engine and Renk RK304 automatic transmission. Armed with L7A3 105mm gun. Only 5 prototypes built. *M48A5 MOLF: (MOdular Laser Fire) Greek M48A5/E48C variant fitted with EMES-18 fire control system. *Zulfiqar (tank)#Zulfiqar-1, Zulfiqar-1: Iranian modernized M48A3/A5 variant developed in the mid 1990s, armed with a Russian 2A46 125 mm gun, 2A46 125mm smoothbore main gun.


Operators


Current operators

* : 390 M48A5 MOLF. * : 20 Keiler (mine flail), Minenräumpanzer Keiler in service as of 2007 * : 180 M48A5. * : 104 M48A5. * : 225 M48A5. * : 4 Minenräumpanzer Keiler, transferred from Germany. * : Around 300 M48A3K and 500 M48A5K1/K2 are in service. M48A3K are expected to be replaced by the K2 Black Panther in the distant future. Most of the M48A3K are used in reserve, but the South Korean military continues to use a few tanks in active service. However, the South Korean M48A3Ks are being replaced with K-1 tanks. * : 450 CM-11, 100 CM-12 * : 105 M48A5PI. * : 758 M48A5T2 in service. All other variants, 2,250 pieces including the 1,389 M48A5T1 are phased out of active service.


Former operators

* : Only M48 AVLBs. *: Limited ad hoc use of captured Iranian tanks during
Iran–Iraq War The Iran–Iraq War was an armed conflict between Iran and Iraq that lasted from September 1980 to August 1988. It began with the Iraqi invasion of Iran and lasted for almost eight years, until the acceptance of United Nations Security Council ...
. Any remaining tanks scrapped after the war. It was never officially in Iraqi service. * : 561 Magach, Magach 5 Golan. * : 200 M48A1. * : 38 M48, upgraded to M48A5 between 1982-86. Additional 17 acquired in 1986. The M48 was phased out in 1993. * : 300 M48A5's in active service till , Currently in Reserve. * : 86 M48A5 received supplied by West Germany from 1977. Replaced by 93 U.S. Supplied M60A3 TTS from 1993 and 37 Leopard-2A6 in the 2000s. * : Limited ad hoc use of captured US and ARVN tanks during the Vietnam War. It was never officially in service with the Socialist Republic of Vietnam. Many are displayed as war memorials. * : Few hundred. * : 164 M48A5E. * : 28. * : active service through . * : retired from combat in 1973,
Army National Guard The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
in 1987 and target use by 1994.


Non-state former operators

*
Lebanese Forces The Lebanese Forces ( ar, القوات اللبنانية '')'' is a Lebanese Christian-based political party and former militia during the Lebanese Civil War. It currently holds 19 of the 128 seats in Lebanon's parliament and is therefore th ...
: 7 M48A5s captured in 1984 from the
Lebanese Army ) , founded = 1 August 1945 , current_form = 1991 , disbanded = , branches = Lebanese Ground ForcesLebanese Air Force Lebanese Navy , headquarters = Yarze, Lebanon , flying_hours = , websit ...
and returned in 1994. *
People's Liberation Army The People's Liberation Army (PLA) is the principal military force of the People's Republic of China and the armed wing of the Chinese Communist Party (CCP). The PLA consists of five service branches: the Ground Force, Navy, Air Force, ...
: 7 M48A5s captured in 1984 from the
Lebanese Army ) , founded = 1 August 1945 , current_form = 1991 , disbanded = , branches = Lebanese Ground ForcesLebanese Air Force Lebanese Navy , headquarters = Yarze, Lebanon , flying_hours = , websit ...
and returned in 1993. *
South Lebanon Army The South Lebanon Army or South Lebanese Army (SLA; ar, جيش لبنان الجنوبي, Jayš Lubnān al-Janūbiyy), also known as the Lahad Army ( ar, جيش لحد, label=none) and referred to as the De Facto Forces (DFF) by the United Nat ...
: 7 M48A5s captured in 1984 from the
Lebanese Army ) , founded = 1 August 1945 , current_form = 1991 , disbanded = , branches = Lebanese Ground ForcesLebanese Air Force Lebanese Navy , headquarters = Yarze, Lebanon , flying_hours = , websit ...
and returned in 2000. * Lebanese Resistance Regiments, Amal Movement: unknown number of M48A5 tanks loaned by the Shia 6th Infantry Brigade (Lebanon), 6th Infantry Brigade in 1988.


See also

*
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 us ...
*
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, command ...
*
M60 tank 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 ...
* M88 Recovery Vehicle – armored recovery variant based on the M48 Patton/M60 Series tanks chassis and part of the automotive component. * M103 heavy tank * List of armoured fighting vehicles * G-numbers – SNL G254


Tanks of comparable role, performance and era

*
T-55 The T-54 and T-55 tanks are a series of Soviet main battle tanks introduced in the years following the Second World War. The first T-54 prototype was completed at Nizhny Tagil by the end of 1945.Steven Zaloga, T-54 and T-55 Main Battle Tanks ...
– a contemporary Soviet design * Centurion tank, Centurion – a contemporary British design * Type 59 tank, Type 59 - a contemporary Chinese design * Type 61 (tank), Type 61 – a similarly armed Japanese design


Notes


References


Bibliography

*Department of the Army. ''FM 17-79, Field Manual, Tank 90-mm Gun M48.'' October 1955. * * * * * *Donn A. Starry, Starry, Donn, A., General. ''Mounted Combat In Vietnam'', Vietnam Studies. Department of the Army, Washington, D.C. 1978. * *


External links


GlobalSecurity.org: M48 PattonM48 Patton
at U.S. Veterans Memorial Museum * {{Cold War tanks, style=wide Cold War tanks of the United States Medium tanks of the Cold War Medium tanks of the United States Military vehicles introduced in the 1950s