The CCGS Hudson was a pioneering offshore oceanographic and hydrographic survey vessel operated by the Canadian Coast Guard, with a service life spanning from its launch in 1963 until its decommissioning in 2022. Constructed by Saint John Shipbuilding in New Brunswick, it was the first Canadian ship specifically designed for hydrographic and oceanographic research. The vessel measured 90.4 meters (296 feet 7 inches) overall, with a beam of 15.4 meters (50 feet 6 inches), a draught of 6.8 meters (22 feet 4 inches), and a gross tonnage of 3,444 GT. Its deadweight capacity was 1,150 tons, and it featured Arctic class 2 certification, enabling operations in polar conditions. Powered by four Alco 251B diesel engines in a diesel-electric DC/DC system, Hudson produced 6,469 kilowatts (8,675 horsepower), driving two fixed-pitch propellers and bow thrusters, which allowed a maximum speed of 17 knots. It had a fuel capacity of 1,268 cubic meters (278,920 gallons), providing an operational range of 23,100 nautical miles at 10.5 knots and an endurance of 105 days. The ship's facilities included a flight deck capable of supporting a light helicopter (such as MBB Bo 105 or Bell 206L), a hangar, a RHIB boat, and four laboratories, including geo-chemistry, hydrography, oceanography, and general-purpose labs. Commissioned initially as CSS Hudson for the Canadian Oceanographic Service, it was notable for its scientific voyages, including the first circumnavigation of the Americas in 1970. Its extensive service included surveys of the Mid-Atlantic Ridge, Arctic regions employing helicopter-based surveys, and participation in international oceanographic programs. Notable events include rescue missions such as the abandoned crew of Cape Freels in 1976, recovery operations after the Ocean Ranger sinking in 1982, and the Swissair Flight 111 recovery in 1998. Throughout its career, Hudson underwent multiple refits and repairs, including a significant $4 million CAD upgrade in 2016-2017. After more than five decades of service, Hudson was decommissioned in January 2022 due to mechanical issues, marking the end of its significant contribution to Canadian and international maritime science and operations. The vessel's legacy lies in its pioneering research voyages and its role in Arctic and global oceanographic efforts. Its planned replacement, CCGS Naalak Nappaaluk, is scheduled for delivery in 2024–2025.

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