sentences:  Although they were designed to Chilean rather than British requirements and required some modifications during construction after their purchase, no major changes were needed to the design to render them suitable for British service.Both were completed in June 1904 and entered service with the Royal Navy, "Constitución" as "Swiftsure" and "Libertad" as .The "Swiftsure"-class ships had an overall length of , a beam of , and a draught of at deep load.