USS George H. W. Bush (CVN-77) is the tenth and final Nimitz-class supercarrier of the United States Navy. She is named for the 41st president of the United States and 11th director of Central Intelligence George H. W. Bush, who was a naval aviator during World War II. The vessel's callsign is Avenger, named after the TBF Avenger aircraft flown by then-Lieutenant Bush in World War II. Construction began in 2003 at Northrop Grumman, in Newport News, Virginia, and was completed in 2009 at a cost of $6.2 billion. Her home port is Naval Station Norfolk, Virginia.