US Navy will use Xbox controllers to steer submarine periscopes 

Sounds cool, right? Problem was, the joystick and the control panel Lockheed Martin developed to steer it cost around $38,000. Plus, the joystick was heavy and clunk, and it takes hours to train a sailor to use it. When the military contractor tested the Xbox controller as a replacement, sailors were able to figure out controls on their own within a few minutes. Considering each controller will only set the Navy back $30, scrapping the pricey specialized joystick and panel was a no-brainer.

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