 Dilkes resumed command of Neptune on 2 March 1810 , while Wood was exchanged into HMS Pompee . Dilkes had apparently been suffering poor health , and Captain N Ballard took command in an acting capacity on 22 July . Neptune returned to Plymouth on 26 October and entered the dock on 9 November to be fitted for the ordinary . The process cost £ 713 , and after undocking on 8 December she was laid up in the Hamoaze until late autumn 1813 . Her hull appears to have quickly deteriorated , and after a survey she was deemed unfit for further service at sea . The Navy Board proposed that she be converted into a prison ship , a recommendation the Admiralty accepted , and she was taken in hand for fitting out on 22 November . On the completion of the work in December she was commissioned under Lieutenant George Lawrence . Neptune spent three years in this role , and was finally taken to pieces in October 1818 . 
