The first five ''Terrors'' were small Bomb Vessel s and Gunboat s of 4 to 14 guns.
The sixth ''Terror'' was a bomb vessel of 10 guns, launched in 1813, and converted to a discovery vessel in 1836. This ''Terror'' was one of the ships involved in the bombardment of Fort McHenry in the War Of 1812 . She and her sister ship ''Erebus'' took part in James Clark Ross 's expedition to Antarctica from 1839 to 1843. The two ships were converted to screw propulsion in 1844, and took part in John Franklin 's expedition to the Arctic in 1845, where they became trapped in ice near King William Island and were abandoned in 1848.
The seventh ''Terror'' was an iron screw floating battery of 16 guns, built in 1856 and sold in 1902.
