HMS Illustrious (1803) was a 74-gun third-rate ship of the line of the Royal Navy. She was built in 1803 and served in various naval actions, including the Battle of Cape Finisterre in 1805 and the Battle of Trafalgar in 1805. In 1812, she was converted into a hospital ship and served in this capacity until 1816. Illustrious was then converted back to a third-rate ship of the line and saw action in the War of 1812. She was eventually decommissioned in 1826 and broken up in 1835. The ship had a crew complement of around 590 officers and men. HMS Illustrious had a length of 176 feet 6 inches, a beam of 48 feet, and a depth in the hold of 20 feet 6 inches. She was armed with 28 32-pounder guns on her lower deck, 28 18-pounder guns on her upper deck, and 18 9-pounder guns on her quarterdeck and forecastle. Throughout her career, HMS Illustrious played a significant role in the Royal Navy's operations and was involved in key naval battles of the early 19th century.

This description has been generated using GPT-3.5-TURBO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.