Canada's submarine choice is driven by oceanic and under-ice range

Which of the two submarine types competing for Canada's program is the better choice?

The Korean proposal is preferred for Canada's oceanic work, although the discussion includes an explicit limit on the participants' knowledge of the candidates; sustained under-ice operations would favour nuclear propulsion.

The comparison favours the Korean Hanwha Ocean proposal for Canada's long ocean passages. The concern about the German Type 212 family is its suitability for that operating pattern, rather than a claim that the boats are inherently poor designs. One participant broadly agrees but explicitly says they know too little about the candidates to make a firm declaration. Sustained operations under Arctic ice are treated as a stronger case for nuclear propulsion than either conventional option. The discussion also recalls Canada's acquisition of British Upholder-class submarines after they had spent time laid up. Their reconditioning is used to caution against assuming that a second-hand transfer will restore capability easily.