HMS Amethyst was originally launched in 1790 as the French frigate Perle, designed to a modified version of a 1782 plan by Joseph-Marie-Blaise Coulomb. The modification, overseen by Jacques Brun Sainte Catherine, involved a slight lengthening of the vessel to accommodate an additional pair of gunports on the upper deck, enhancing her artillery capacity. The frigate was a medium-sized warship, typical of the late 18th-century French naval design, though specific dimensions are not detailed in the source. Perle’s early service saw her operating from Toulon, with her first notable incident occurring in December 1792 when she grounded near Galéria while transporting passengers from Toulon to Corsica. She remained in repair from January to May 1793. Subsequently, she participated in the Mediterranean, sailing from Toulon to Ajaccio and Calvi, where she played a role in defending Calvi against Pasquale Paoli's partisans in April 1793. Her French service ended when she was surrendered to the Royalists at Toulon in August 1793, and she was subsequently captured by the British when they evacuated the harbor in December of that year. The Royal Navy commissioned her as HMS Amethyst, undergoing fitting at Portsmouth from December 1794 to September 1795. Under Captain Thomas Affleck, she was prepared for service but met her tragic end shortly after. On 29 December 1795, HMS Amethyst departed Prawle Point in company with three other ships but lost contact during the night. The following day, she struck rocks near Alderney, driven over them after her crew failed to heed warning signals. The ship developed a severe leak, and rather than attempt a risky repair at sea, she was beached at Braye Bay, Alderney. Captain Affleck was court-martialed for the mishandling of the voyage; he was found responsible for the loss, reprimanded, and subsequently never employed again by the Royal Navy. The wreck of HMS Amethyst was stripped of her guns, which were repurposed for local defenses on Alderney. Her original French plans are preserved at the Service Historique de la Marine in Paris, while the British Admiralty’s post-capture plans are held at the National Maritime Museum in Greenwich, reflecting her historical significance as a vessel of both French and British naval history.

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