Converting the ships to prison hulks involved removal of the rigging, masts, rudders, and various other features required for sailing.
The internal structure was also reconfigured with various features, including cells, in order to accommodate convicted criminals or occasionally prisoners of war.
This made them convenient temporary holding quarters for convicts awaiting transportation to Australia and other penal colonies within the British Empire.
Most British prison hulks were decommissioned in the 19th century, although suspected and convicted criminals are still confined aboard ships on occasion for various reasons.
[2] In 1811, she was still a Prison Hospital Ship (death on board of POW Pascal FURIC, a French sailor, "phthisis pulmonalis", on 6 May 1811) ref.