U.S. Navy Petty Officer 2nd Class Anthony Crutchfield checks the head space and timing on an M2HB .50-caliber machine gun on the fantail of the aircraft carrier USS Carl Vinson in the U.S. 5th Fleet area of responsibility, Jan. 5, 2015. Crutchfield is a gunner’s mate. U.S. Navy Petty Officer 2nd Class Anthony Crutchfield checks the head space and timing on an M2HB .50-caliber machine gun on the fantail of the aircraft carrier USS Carl Vinson in the U.S. 5th Fleet area of responsibility, Jan. 5, 2015. Crutchfield is a gunner’s mate. SHARE: Download: Full Size (0.79 MB) Tags: Photo Essays Credit: VIRIN: 960384-L-QVE89-406.jpg Photo Gallery