"Gloucester", named after the eponymous port, was the fifth ship of her name to serve in the Royal Navy. She was ordered on 15 June, 1743 from Whetstone &amp; Grenville, to the 1741 revisions of dimensions. The ship was laid down at their Rotherhithe dockyard on 12 July, launched on 23 March, 1745 and completed on 10 May. "Gloucester" cost £13,019 to build and an additional £6,149 to outfit. The ship was commissioned in March 1745 under Captain Charles Saunders for service in the English Channel. She took two French privateers in July and another pair in 1747. Later that year she participated in the Second Battle of Cape Finisterre on 25 October. "Gloucester" sailed for Jamaica in 1749 and returned home in 1753 to pay off.