Petty Officer 3rd Class Brandon Yarberry, left, an aviation ordnanceman from Cincinnati, and Petty Officer 2nd Class Michael Rodriguez, an aviation ordnanceman from Passaic, N.J., conduct a routine inspection on a 20mm MK-61 automatic gun in the hangar bay aboard the aircraft carrier USS Kitty Hawk. Kitty Hawk is the Navy's oldest active-duty warship and will be replaced this summer by the nuclear-powered aircraft carrier USS George Washington as the Navy's only permanently forward-deployed aircraft carrier.