“HMCS Chicoutimi is a Victoria-class long-range hunter-killer (SSK) submarine of the Royal Canadian Navy, originally built and operated by the Royal Navy as HMS Upholder. Shortly after being handed over by the United Kingdom to Canada she was involved in a partial flooding incident which resulted in a fire at sea. The incident sparked a fierce debate over the value of the purchase of this group of second-hand vessels, as well as the handover inspection process.
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“The submarine was built for the Royal Navy as HMS Upholder (S40), the lead ship of the Upholder (2400) class of submarines, the second vessel to bear the name in the Royal Navy. The submarine was laid down by Vickers Shipbuilding and Engineering Ltd (VSEL) in February 1983 and launched on 2 December 1986.[8] During construction, work on the submarine was delayed due to a labour strike.[9] Upholder commissioned into the Royal Navy on 7 December 1990.[8] Her commissioning was delayed due to a problem with the operation of the torpedo tubes, which had to be welded closed to prevent sea water entering the submarine.”
https://en.wikipedia.org/wiki/HMCS_Chicoutimi_(SSK_879)
...but does it have enough baking soda to make it home?