HMS Investigator was a merchant vessel constructed at Scotts Shipbuilding and Engineering Company in Greenock on the Firth of Clyde, with a tonnage of 422 tonnes. Purchased by the British Admiralty in February 1848, the ship was extensively modified for Arctic exploration at Blackwall Yard on the River Thames, and reinforced for ice conditions under the supervision of William M. Rice, master shipwright of Woolwich Dockyard. Its structural enhancements included the addition of timber—teak, English oak, and Canadian elm—and 5/16-inch steel plating. To withstand ice and snow loads, the upper decks were doubled with 3-inch fir planking. The vessel was also equipped with Preston's Patent Ventilating Illuminators for improved lighting and ventilation, along with Charles Sylvester's warming apparatus, a modern stove system designed to heat the entire ship and prevent condensation, a system previously used by William Edward Parry in 1821. HMS Investigator's primary mission was to find Sir John Franklin’s lost Northwest Passage expedition. She accompanied HMS Enterprise on James Clark Ross's expedition in 1848, with naturalist Edward Adams aboard. Later, under the command of Robert McClure, Investigator became trapped in the pack ice at Mercy Bay near Banks Island, where she remained for nearly three years before being abandoned on June 3, 1853. Despite being frozen in, the ship was inspected in 1854 and found to be in generally fair condition, though some water had entered during the summer thaw. The wreck’s exact location remained unknown for over 150 years, but Inuit oral traditions referenced the ship, noting its use as a source of copper and iron. It was a notable part of Arctic history, symbolizing the perilous search for Franklin. In July 2010, Parks Canada scientists located her remains off Banks Island at a depth of about 8 meters, with the hull sitting upright in silt and the three masts likely removed by ice. The wreck is not planned to be raised, but photographs and assessments were made via remotely operated underwater vehicles, preserving this significant relic of Arctic exploration.

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