YORKTOWN, Va. - A U.S. Coast Guard gunner's mate handles a 76 mm shell during a weapons demonstration at the U.S. Coast Guard Training Center Yorktown, Oct. 16, 2012. The weapons school at TRACEN Yorktown provides gunner's mate training ranging from fundamental training needed by entry level petty officers to advanced courses in weapons systems, hydraulics, electricity, electronics, and small arms instruction. U.S. Coast Guard photo by Petty Officer 1st Class Luke Pinneo