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For the M1 Abrams base model, military historian Steven Zaloga estimates the frontal armor at 350 mm vs APFSDS and 700 mm vs HEAT warhead in the book, M1 Abrams Main Battle Tank 1982–1992 (1993). [144] In M1 Abrams vs T-72 Ural (2009), he uses Soviet estimates of 470 mm (19 in) vs APFSDS and 650 mm (26 in) vs HEAT for the base model Abrams ...
To improve the lethality of the M1A2 main battle tank, the US Army funded the Advanced Tank Armament System (ATAS) research project to integrate a longer gun tube. [10] The long tube is based on the German Rh-120 L55 tube, made by Rheinmetall, and is 1.3 m longer than the conventional M256 120 mm gun tube.
This variant is unofficially referred to by Abrams tank crews as the "super sabot". [4] Although the M829A3 fired from the 44-caliber M256 gun has a lower muzzle velocity than 120 mm shells fired from the Rheinmetall 55-caliber gun barrel or Russian 2A46 125 mm gun ammunition, it uses a larger penetrator with increased mass to increase imparted ...
The M830 is an American 120×570mm NATO high explosive anti-tank multi purpose (HEAT MP-T) cartridge which has anti-armor and anti-personnel capabilities. [1] This round is meant for the 120 mm M256 main gun of the M1A1 and M1A2 Abrams.
In December 1988 GDLS was awarded a full-scale development contract for the M1A2 Abrams. [81] About 6,000 M1A1 Abrams were produced from 1986 to 1992 and featured the M256 120 mm smoothbore cannon developed by Rheinmetall AG of Germany for the Leopard 2, improved armor, and a CBRN protection system.
Despite all these advances, the Abrams still retained the 4-man crew of the M60 tank as the autoloader was considered unproven and risky. Over 3,200 M1 Abrams were produced and first entered US Army service in 1980. About 6,000 upgraded M1A1 Abrams were produced and used a 120 mm smoothbore cannon, improved armor, and a CBRN protection system.
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M1A2 Abrams Main Battle Tank. M1 Abrams – 5,000 active use. Approx. 3,600 stored. ... full-track) M142 HIMARS 500; M270A1 MLRS 991; Anti-aircraft