Canada's navy to upgrade torpedoes for troubled subs

Canada's navy plans to spend about $120 million to upgrade 36 torpedoes, but they still won't work in its four submarines without further refits, CBC News has learned.

The navy has MK-48 American torpedoes in stock, but the four British-built submarines aren't capable of firing them.

Even after the weapons are converted, Canada would still have to spend millions more to refit the submarines to fire them.

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