HMCS Onondaga is an that served in the Royal Canadian Navy and later the Canadian Forces. Built in the mid-1960s, Onondaga operated primarily with the Maritime Forces Atlantic until her decommissioning in 2000 as the last Canadian Oberon.Several plans for the disposal of the submarine were made and cancelled before the Site historique maritime de la Pointe-au-Père in Rimouski purchased the boat for preservation as a museum vessel. The submarine was moved into location during 2008, and is open to the public.Design and constructionThe Oberon class were considered an improved version of the preceding Porpoise-class submarines, with a different frame of the pressure hull and constructed from a better grade of steel. These build differences allowed the Oberons to have a deeper diving depth at roughly 1000ft.The submarines displaced 2030t surfaced and 2410t submerged. They measured 295ft long with a beam of 26ft and a draught of 18ft.The boats were powered by a two shaft diesel-electric system. The Oberons were equipped with two ASR 1 16-cylinder diesel engines creating 3680bhp and two English Electric motors creating 6000shp. This gave the submarines a maximum surface speed of 12kn and a submerged speed of. The boats carried 258 tons of oil giving them a range of 9000nmi at 12 knots.
