Maine (March 21, 2016) The future guided-missile destroyer USS Zumwalt (DDG 1000) departs the Bath Iron Works shipyard for its second at-sea period to conduct builder's trials during which many of the ship's key systems and technologies will be demonstrated. In addition to systems testing, the Navy-Industry team will be conducting numerous operational demonstrations in preparation for acceptance trials in April. DDG 1000 is the lead ship of the Zumwalt-class destroyers, a class of next-generation multi-mission surface combatants tailored for land attack and littoral dominance with capabilities that defeat current and projected threats. (U.S. Navy photo)