The Navy's newest attack submarine, Seawolf (SSN 21), completed its initial sea trial, July 5, and returned to Electric Boat Division in Groton, Conn. The test program included first underwater submergence, acoustics trials, engineering inspections and at-sea training for the crew. Representing the Navy's most advanced technology, Seawolf is scheduled to be delivered to the Navy and commissioned this fall. U.S. Navy photo courtesy Electric Boat Div., General Dynamics Corp