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|trans=Allison X-1100-3B Hydro-Kinetic Automatic; four forward/2 reverse gears

|trans=Allison X-1100-3B Hydro-Kinetic Automatic; four forward/2 reverse gears

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The '''M1 Abrams''' is the [[Main Battle Tank]] of the [[United States Army]] and the [[United States Marine Corps]]. In the 1970's, Chrysler Defense Inc. developed this front-line battle tank to fight outnumbered against [[Warsaw Pact]] mechanized divisions. In 1982, Chrysler Defense sold to [[General Dynamics]], which still manufactures the tanks to the present day, some speculate until the year 2040. Significant variants give the tank new life and new models numbers;  M1, M1A1, M1A1D, M1A2, M1A2 SEP (System Enhancement Package) . The current modification is M1A1 SA, incorporating second-generation forward-looking infrared thermal sight, a driver's vision-enhancer thermal viewer and Tank Urban Survivability Kit (TUSK) improvements, providing better crew shielding, improved situational awareness and a Remote Weapons Station for the .50" HMG which can be operated from under armour. The aim of the upgrade is to make the tank more effcetive in urban warfare environments. Modifications will take place at General Dynamics plants in [[Ohio]], Pennsylvania, Alabama, [[Florida]] and completed in 2011. <ref>[http://www.foxbusiness.com/story/markets/industries/industrials/general-dynamics-wins--million-iraqi-tank-contract/ General Dynamics Wins $198 Million Iraqi Tank Contract, Fox Business, January 04, 2010]</ref>  

The '''M1 Abrams''' is the [[Main Battle Tank]] of the [[United States Army]] and the [[United States Marine Corps]]. In the 1970's, Chrysler Defense Inc. developed this front-line battle tank to fight outnumbered against [[Warsaw Pact]] mechanized divisions. In 1982, Chrysler Defense sold to [[General Dynamics]], which still manufactures the tanks to the present day, some speculate until the year 2040. Significant variants give the tank new life and new models numbers;  M1, M1A1, M1A1D, M1A2, M1A2 SEP (System Enhancement Package) . The current modification is M1A1 SA, incorporating second-generation forward-looking infrared thermal sight, a driver's vision-enhancer thermal viewer and Tank Urban Survivability Kit (TUSK) improvements, providing better crew shielding, improved situational awareness and a Remote Weapons Station for the .50" HMG which can be operated from under armour. The aim of the upgrade is to make the tank more effective in urban warfare environments. Modifications will take place at General Dynamics plants in [[Ohio]], Pennsylvania, Alabama, [[Florida]] and completed in 2011. <ref>[http://www.foxbusiness.com/story/markets/industries/industrials/general-dynamics-wins--million-iraqi-tank-contract/ General Dynamics Wins $198 Million Iraqi Tank Contract, Fox Business, January 04, 2010]</ref>