The Navy's first joint high-speed vessel departed Joint Expeditionary Base Little Creek-Ft. Story today on its maiden deployment to the U.S. 6th Fleet Area of Responsibility. USNS Spearhead (JHSV 1) is expected to remain in U.S. 6th Fleet until May 2014 and sail to the U.S. 4th Fleet area of responsibility through the end of fiscal year 2014. While deployed, the ship will undergo planned experimentation and testing to determine the ship's capabilities. "The JHSV ship class will play an important part in the future of our joint forces in terms of affordability…