"Unicorn" was accepted by Canada and renamed "Windsor" on 5 July 2001. The sub sailed from Faslane on 8 October, arriving at Halifax, Nova Scotia on 19 October 2001. During her sea trials, "Windsor" suffered minor flooding while submerged, forcing her early entry into the CWP. "Ursula" was accepted by Canada and renamed "Corner Brook" on 21 February 2003. She departed Faslane on 25 February and arrived at Halifax on 10 March. "Corner Brook" was commissioned at her namesake city on 29 June 2003. On 29 June 2003, following the completion of her CWP, "Victoria" transferred to the west coast, arriving at Esquimalt, British Columbia on 24 August. "Windsor" was commissioned into Maritime Command during her CWP on 4 October 2003.