060908-N-7981E-189...Shipyard workers use instruments to precisely align the aircraft carrier USS Abraham Lincoln (CVN 72) as the ship enters Dry Dock 6 at the Puget Sound Naval Shipyard in Bremerton, Wash., on Sept. 8, 2006. The hull of the ship must line up precisely with the blocks that will support the ship as water is pumped out of the dock. DoD photo by Seaman James R. Evans, U.S. Navy. (Released)