Arctic Patrol Vessel

With all the talk of the Arctic opening up, I’d like to pick you brains about the sort of ships we need. How will we balance of numbers and capability?

Do we need a new design? An ice strengthened OPC? Can 225s do the job? A salt water Mackinaw? (Anybody know if the new Mackinaw is restricted to fresh water?)

Do we perhaps need a new type of vessel–maybe an icebreaking helo carrier with hanger space that can alternately be used for containers of different types from scientific or personnel support to mine warfare modules?

Should we reactivate the Glacier as an interim measure?

There is some background here.

What do you think?