BOSTON (Aug. 24, 2018) USS Constitution is tugged out to Fort Independence on Castle Island during “Old Ironsides” Chief Petty Officer Heritage Week underway.  (U.S. Navy photo by Seaman Donovan Keller/Released)

The world’s oldest warship “Old Ironside”, the USS Constitution, will fire a one-gun salutes on Sept 11 to mark when the airplanes crashed into the World Trade Center in New York City,  a field in Somerset County, Pennsylvania, and the Pentagon.