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M1 Abrams Block III Tank Test Bed (M1 TTB) was a prototype built in 1983 as part of TACOM's Abrams Block III program (whose purview was to eventually create the M1A3), featuring an unmanned turret with a 44-caliber 120 mm M256 smoothbore gun, three crew members sitting side by side inside an armored capsule at the front of the hull and a suite ...
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.
A number of considerations had led the U.S. Army and its contractors to favor the Army's standard M68 105 mm gun over Germany's 120 mm Rheinmetall Rh-120 smoothbore gun for the XM1 Abrams. To begin with, the 105 mm gun was "the smallest, lightest, and least costly gun adequate for the job."
Boresighting is a method of visually pre-aligning a firearm barrel's bore axis with the target, in order to more easily zero the gunsight (optical or iron sights). The process is usually performed on a rifle , and can be accomplished either with the naked eye, or with a specialized device called a boresighter .
Description: A left front view of the XM-1 Abrams tank, which will replace the M-60 series, during a demonstration on the test range. (Released to Public) Location: FORT KNOX, KENTUCKY (KY) UNITED STATES OF AMERICA (USA)
Bore evacuator on an M1 Abrams. The evacuator is a passive device generally consisting of a ring of holes drilled into the barrel, surrounded by a cylindrical pressure reservoir that is sealed to the barrel's surface. When the gun is fired, high pressure gas generated by the burning propellant pushes the projectile forward.
The most advanced variant of the Zulfiqar family, bearing a resemblance to the M1 Abrams. It features upgrades to the fire-control system, chassis, engine and main gun. The new variant is equipped with an autoloaded 2A46 125 mm smoothbore cannon, laser rangefinder and a new fire-control system. M60-2000: 2001 — United States Turkey: 1
Shown to the left is the more exposed hull-down position a T-72 must adopt because of its main gun's limited range of depression (five degrees vs. the M1's ten degrees). Tanks and other fighting vehicles must be able to depress their gun to be able to take advantage of many hull-down positions, since a vehicle's hull is usually tilted upwards ...