HMS Beagle was a Cherokee-class 10-gun brig-sloop of the Royal Navy, launched on 11 May 1820 from Woolwich Dockyard on the River Thames. Designed by Sir Henry Peake in 1807, over 100 ships of this class were built. Beagle's keel was laid in June 1818, and her construction cost approximately £7,803. Initially, she was moored afloat without masts or rigging, serving as "lay in ordinary." Later, she was converted into a survey barque, with modifications including the addition of a mizzen mast and a reduction of her armament from ten to six guns, transforming her from a brig to a bark (barque). Her upper deck was raised by 8 inches aft and 12 inches forward to improve stability, addressing the notorious handling issues associated with Cherokee-class vessels. Throughout her service, Beagle participated in notable exploratory and survey missions. Her first task included celebrating King George IV's coronation by passing under the old London Bridge, making her the first rigged man-of-war afloat upriver of the bridge. Under Captain Pringle Stokes, she was assigned to hydrographic survey work in South America, including Patagonia and Tierra del Fuego, beginning her first voyage in 1826. During this expedition, she encountered survivors of a wreck in Cockburn Channel, and Stokes' mental health deteriorated during the challenging Tierra del Fuego surveys, leading to his tragic suicide in 1828. Command was then transferred to Lieutenant William George Skyring and later to Rear Admiral Sir Robert Otway, before being placed under the command of Captain Robert FitzRoy. FitzRoy extensively refitted the vessel, including installing a lightning conductor, numerous chronometers, and advanced barometers, emphasizing her role as a meticulous scientific platform. The second voyage, starting in December 1831, became historically significant as it carried Charles Darwin, whose observations and diary during the circumnavigation led to groundbreaking contributions to biology and geology. The ship's exploration in South America, New Zealand, Australia, and other regions resulted in numerous geographic features being named, including the Beagle Channel and Port Darwin. After her scientific missions, HMS Beagle was repurposed in 1845 as a coastguard watch vessel along the Essex coast, moored in the River Roach. Investigations in the early 21st century identified remains of her at Paglesham, Essex, where she had been broken up by 1870. Evidence suggests she ended her days as a dismantled vessel near East Greenwich, with her remains found in the mud and associated artifacts, marking the end of her distinguished maritime career.

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