170112-N-AD499-033 SAN DIEGO (Jan. 12, 2017) Aviation Ordnanceman Airman Thomas Gofn, assigned to the aircraft carrier USS Theodore Roosevelt (CVN 71), mans the .50 caliber machine gun. Theodore Roosevelt is conducting carrier qualifications off the coast of southern Calif. (U.S. Navy photo by Mass Communication Specialist 3rd Victoria Galbraith/Released)