HMS Yarmouth was a 64-gun third-rate ship of the line constructed for the Royal Navy, launched on 8 March 1745 at Deptford Dockyard. Designed by Joseph Allin the younger, she was initially ordered according to the 1741 proposals based on the 1719 Establishment, but the Admiralty quickly deemed these dimensions too small. As an experiment, in 1742, an additional 6 feet was added to her length, and she was re-ordered to this enlarged design, allowing for improved seaworthiness and firepower. The vessel’s dimensions and armament positioned her as a formidable line-of-battle ship of her era. She was commissioned in February 1745 under Captain Roger Martin and participated in notable engagements, including serving under Captain Piercy Brett as part of George Anson's squadron at the First Battle of Cape Finisterre in 1747. During her service, Yarmouth also took on the role of a guardship, alternating between Chatham and Sheerness from 1763. In 1777, she was recommissioned for service in the Leeward Islands, sailing on 9 September of that year. During her later career, in 1781, her armament was reduced from 64 to 60 guns, reflecting a common practice of rearming ships to better suit evolving naval needs. She remained active until 1811, when she was broken up. Yarmouth’s service record includes the capture of the brigs "Fortune" and "Alexander" off Dominico on 22 January 1778. She also engaged in combat with American vessels, notably on 7 March 1778, when she was attacked by the American frigate Randolph and the sloop General Moultrie. Despite being outgunned, Yarmouth sustained only minor damage, with casualties of five killed and twelve wounded. The Randolph was destroyed in the engagement—likely due to a magazine explosion—killing nearly all its crew, and debris from the explosion was recovered aboard Yarmouth. A remarkable event occurred shortly after, when Yarmouth rescued four men from the wreckage of Randolph, who had survived five days afloat on a makeshift raft after their ship’s explosion. This incident underscores HMS Yarmouth’s active role in the naval conflicts of her period and highlights her resilience and significance within the Royal Navy’s line of battle ships of the 18th century.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.