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 George H. W. Bush, who was a naval aviator during World War II. Bush's callsign is Avenger, after the TBM Avenger aircraft flown by then-Lieutenant George Bush in WWII. Construction began in 2001 by the Northrop Grumman Newport News shipyard, at a cost of $6.2 billion and was completed in 2009. She is homeported at Naval Station Norfolk, Virginia.