Keywords: Flickr - Official U.S. Navy Imagery - PCU Mississippi conducts alpha trials. (2).jpg 120407-N-ZZ999-011 ATLANTIC OCEAN April 7 2012 The Virginia-class attack submarine Pre-Commissioning Unit PCU Mississippi SSN 782 conducts alpha trials in the Atlantic Ocean U S Navy photo courtesy of General Dynamics Electric Boat/Released Join the conversation http //www facebook com/USNavy www facebook com/USNavy http //www twitter com/USNavy www twitter com/USNavy http //navylive dodlive mil navylive dodlive mil http //www flickr com/photos/usnavy/7308239070/ PCU Mississippi conducts alpha trials 2012-04-07 05 37 http //www flickr com/people/56594044 N06 Official Navy Page from United States of America Oscar Sosa/U S Navy U S Navy photo PD-USGov-Military-Navy Official U S Navy Imagery http //flickr com/photos/56594044 N06/7308239070 2012-11-13 10 12 37 cc-by-2 0 Images from United States Navy to check United States Navy images |