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DARPA GXV-T
The Defense Advanced Research Projects Agency (DARPA) Ground X-Vehicle Technology (GXV-T) project is an effort to develop technologies and designs to create lighter future armored military vehicles.
==Background==
Since the creation of the main battle tank during World War I, there has been a constant arms race between the development of anti-armor weapons and vehicle protection systems. As weapons became more sophisticated, tanks and other armored vehicles added thicker armor, created composite solutions like Chobham armor, and developed countermeasures like reactive armor and electronic countermeasures. While vehicles became more protected, increasing the amounts of armor made them larger and heavier, increasing their cost and weight and decreasing mobility; the British Challenger 2 tank weighs 62.5 tonnes (68.9 tons) and costs about £4.2 million (US$7 million). This affects what roads and bridges they are able to travel on, makes them difficult to deploy quickly, and increases the expense to build and maintain them. As anti-tank weapons continue to get more effective, old solutions of simply increasing the level of armor may make future armored vehicles too large, heavy, and expensive to be useful. GXV-T seeks to develop ways to protect vehicles and their occupants using mobility rather than relying on armor for survival.〔(DARPA seeks high-tech alternatives to armor ) - Gizmag.com, 20 August 2014〕 The U.S. Army explored a similar survivability-through-mobility concept with the Future Combat Systems program that aimed to create 18 separate combat vehicles tied to a network. The program was ultimately cancelled, partly because of experiences during combat in Iraq and Afghanistan where improvised explosive devices proved deadly to lightly armored vehicles. GXV-T is not to create a large family of systems, but to further explore the concept with smaller and simpler prototypes.〔(DARPA Thinks Less Armor Could Make Tanks Safer ) - Popsci.com, 19 August 2014〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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