A German (and Norwegian) submarine is perfectly suited for Arctic environments, because it will operate there. Unlike the Koreans, Germans and Norwegian designers have plenty of experience with cold water operations and the pitfalls that come with them. Probably only the Russians and Swedes have a more comprehensive grasp on this matter.
Now look at
where Halifax is compared to the edge of the ice, compared to where the German and Norwegian sub bases are.
That's a good 1500nmi, just to get to where they
start to patrol from Goose Bay. Basically 6-8 days travel one way. Refuel in Goose Bay, and then out for the
actual patrol. On the way back, refuel in Goose Bay and come home to Halifax.
So, the local production offer apparently won the day. Too bad for the Koreans, I would have liked to see one of their boats.
If sovereignty assurance through deterrence is a primary Arctic mission, it makes most sense to secure both west and east approaches to the Northwest Passage. Put another way, Canada does not have one "Arctic zone".
There's not really a closer/better place to base the subs on the Pacific side, though. Alaska is
completely in the way, running way down the West Coast and then out the Aleutian islands.
That's why I was saying the Arctic flotilla would be based in Halifax. There's actually access to the Arctic that way, and functionally
no access without US permission in the Pacific.
My reference was to type-specific familiarisation not baseline training.
At least in the USN, that's handled on the ship proper. You have basic sub school and then you're sent to your rating school**, then to your actual ship.
Training units tend to be somewhat generic. The ship control simulator in Groton is based on 688s, the ship control simulator in Bangor is based on an Ohio. The Firefighting trainers are based on 688s, the flooding wet trainer is based on an old 640-class main seawater bay.
** Usually. Supply, Cooks, and Admin get their rating school before sub school, technical types have to pass sub school first. The radars/sonars/etc used on subs and surface ships are different, but the systems used on each class of sub are also different.
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Then again, now that the purchase decision has been made, they can make all the trainers specifically for the Type 212 and they'll last for a generation of ships or more.