For the first time since they were purchased in 1998, the Royal Canadian Navy has reached a stage where three of its four diesel-electric submarines are now shipshape and available for operations. Canada's Navy is marking what it calls a milestone for its controversy-plagued submarine program. Two of the subs, HMCS Victoria and HMCS Chicoutimi will be in the water off Esquimalt, B.C. this week, while HMCS Windsor is currently operating out of Halifax. A fourth vessel, HMCS Corner Brook is currently in dry dock in Esquimalt in what the navy calls a period of "deep maintenance". Canada's submarines were bought second-hand from Britain for $896 million in 1998. Critics believe they've cost at least twice that much to fix, maintain and update to modern standards.