HMS "Erebus" was originally built as a Royal Navy fireship, but served as a sloop and was re-rated as such in March 1808. Complete the following sentence: HMS "Erebus" was originally built as a Royal Navy fireship, but served as a sloop and was re-rated as such in March 1808. <unk> <unk> <unk>
1809 she was briefly converted to a fireship, and then served in the War of 1812. 1814 she was converted to a rocket vessel to fire Congreve rockets. While serving off America, "Erebus" participated in the sack of Alexandria, Virginia, and launched the rockets that bombed Fort McHenry in Baltimore on 13 September 1814. <unk> <unk> <unk> <unk> •••••••••••••••••••••••••••••