CSS Rappahannock, a steam sloop-of-war, was built at the Blackwall Yard on the River Thames by Money Wigram & Son in 1855 as an Intrepid-class gunvessel for the Royal Navy and named HMS Victor. Although a handsomely modeled vessel, numerous defects occasioned her sale in 1863. An agent of the Confederate States Government purchased her ostensibly for the China trade, but British authorities suspected she was destined to be a Confederate commerce raider and ordered her detention. Nevertheless, she succeeded in escaping from Sheerness, England, on November 24, with workmen still on board and only a token crew. Her Confederate Naval officers joined in the English Channel.