The oldest preserved ship in the United States is the 204ft frigate USS Constitution built in 1797 and berthed at The Navy Yard, Boston, Massachusetts.
The frigate is kept afloat and every year she is towed around the harbour and berthed the opposite way round to prevent weather damage to the hull.
She goes into dry dock every two years for major repairs. The Constitution has a very high gun deck so that firing could continue in bad weather. This frigate could sail at 13.5 knots.
In the War of 1812-15, she had a successful battle against the British 18 gun frigate Guerriere, making her a great favourite with the American public and in 1858 she was in action against slave ships on the African coast.