The aircraft carrier USS Kitty Hawk prepares to moor at Naval Air Station North Island upon her return to San Diego Thursday, Aug. 7, 2008. Kitty Hawk will be decommissioned next year in Bremerton, Wash. The 46- year-old carrier is the oldest active-duty warship in the Navy 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.