Arsenal | Patton M-48A3 | HistoryNet

Arsenal | Patton M-48A3

By Carl O. Schuster
11/18/2011 • Vietnam Magazine

Many believed armor had little utility in Vietnam, but Marine and Army combat experience proved that there was no substitute for the shock and firepower tanks brought to the battlefield. Used primarily in the infantry support role, the M48A3 tank was America’s main battle tank in Vietnam from the earliest combat action, and in South Vietnamese service almost to its last.

The M48 was the final version of the Patton series, named after General George S. Patton. The first M48s were produced from 1952 to 1959, but the Vietnam-era A3 was a modernized and refurbished variant that first rolled out in February 1963. It had a supercharged diesel instead of a gasoline engine and an enhanced fire control system. The turret and hull were made from cast homogenous steel and enjoyed a 60-degree frontal slope. The turret had 4.5 inches of frontal armor, 3 inches of side armor and 2 inches in the rear. The hull’s front armor was 4.3 inches, and side armor was 3 inches forward and 2 inches at the rear. Inch-thick floor plating gave good protection against enemy mines.

The M48’s 90mm M41 cannon fired a 24.16-pound shell with a muzzle velocity of 2,800 feet per second out to a maximum range of 4,500 meters, but the fire control system had a 2,500-meter limit. The gunner used an M17A1 coincidence rangefinder, and the fire control system included a repeater that displayed the gunner’s sight picture to the commander. A coaxial .30-caliber machine gun and a .50-caliber gun in, or mounted on, the commander’s cupola rounded out the tank’s armament.

The M48A3’s wide tracks gave it good off-road mobility, but Vietnam’s exceptionally soft, deep mud frequently bogged it down. Its shallow fording depth (4 feet) and weight could limit its employment. A kit was available that enabled the tank to ford rivers up to 14 feet deep, but it was rarely used.

Patton tanks were in most of the war’s major actions, serving with the Marines and three U.S. Army tank battalions and with Army armored cavalry squadrons until replaced by M551 Sheridan light tanks. As U.S. forces began to depart in 1970, they turned their M48s over to the South Vietnamese.

Although designed to combat massed Soviet armored formations, the Patton was an invaluable weapon for infantry support and defending firebases. It is generally considered superior to the T-54/55 and T-59 tanks the NVA deployed south in 1972 and later. The newer M60 replaced the Patton in regular U.S. Army and Marine units after the war, but the M48 remained in service with most American allies and its reserve units well into the 1990s.

Patton M48A3 Main Battle Tank

Crew:  Four

Height:  10 ft. 9.3 in

Weight:  53.3 tons

Engine:  700 shp/diesel

Fuel capacity: 385 gal.

Max range: 300 miles

Main gun:  90mm M-41 cannon

Machine guns: One .50 cal M2 Browning machine gun; one .30 cal M73 machine gun


Originally from the February 2011 issue of Vietnam magazine. Subscribe here!

6 Responses to Arsenal | Patton M-48A3

  1. butch71 says:

    This is a good article on M-48A3 Patton tank I have a model of M60A1 Patton tank used during Desert storm.

  2. Howlingmad says:

    The listed muzzle velocity of 2800fps, is LAUGHABLE . . . as our HVAP round, had a listed velocity of 1325mps . . . just a detail.

  3. Joseph Marshall says:

    Great Weapon. I drove one in Vietnam in 1968. 3/4 Cav.

  4. Paul G. Horton, Chief Armor MTT says:

    I took 54 M48 A5’s to Beirut Lebanon in 1983. The tanks arrived about the time our embassy was bombed. I took about a dozen hand picked enlisted men and one captain as my executive officer. We were out of the army system and worked for the ambassador. Our tanks arrived at the port of Beirut next to a Russian ship unloading who knows what. After the tanks were off loaded the 2 Lebanese battalions that I was to train moved the tanks to an area just north of the city. I tried to get a few sites closer to the heart of Beirut, but the militia felt they could not get along with the one Christian Battalion and one Moslem Battalion (I could see this could be an issue, considering my battalions were engaged with the other when they finished training.
    The M48 A5 was a great tank at the time and nearly as good as the M60’s found at Fort Knox. The only short coming was how they were deployed. The Lebanese, Christian or Moslem did not use them for maneuver. They would get next to or behind a building or large rock, etc. and fire the main gun. It is hard to beat a foe without maneuver and attack. I was upset about that, but I was also convinced that the Lebanese discovered the Chinese Fire Drill.
    After the rest of the political staff had been evacuated we were picked up by helicopter and taken to the flag ship (6th Fleet).

    • Chad Jessup says:

      Mr. Horton, I thought I heard that the later version of the M48 was outfitted with a 105 mm main gun. Is that true?

      Also, I can’t recall how the spent shell casings were removed from the tank, so how did that happen?

      I was a M48A3 tank mechanic fifty years ago, and memory fails me at the moment.

  5. GruntDoc68 says:

    Spent a year with 3rd Tanks in Viet Nam….she was a sweet machine for the time…we all loved her….

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