Be sure to watch for cursor changes in the image that will lead you to more information on selected items. If the image does not fill in completely, or does not appear at all, please download the new version of QuickTime . U.S. nuclear-powered submarines can go faster than 25 knots, which is approximately 29 miles per hour or 46 kilometers per hour. Nuclear power enables submarines to maintain these speeds for as long as needed, giving U.S. submarines the capability to go anywhere in the world relatively quickly. Submarine Navigators and Quartermasters use normal navigational charts just like on any other ship, but pay closer attention to the depth of water.
Submarines have a computer that knows how fast the ship is going and in what direction.