BIG BANG Sailors assigned to the weapons department aboard the aircraft carrier USS Ronald Reagan fire 40mm cannons during a saluting battery practice in the North Arabian Sea, Sept. 10, 2008. The 40mm saluting battery is used during change of command ceremonies as well as to honor high-ranking officials and heads of state. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 416745-N-CKR06-584.jpg Photo Gallery