The s are designed for use in the Arctic regions of Canada for patrol and support within Canada's
exclusive economic zone. The vessel is
long overall with a
beam of . The ship will have a
displacement of . The ship has an enclosed foredeck that protects machinery and work spaces from Arctic climates. The vessel will be powered by a diesel-electric system composed of four
MAN 6L32/44CR
William Hall will be able to deploy with multiple payloads, including
shipping containers, underwater survey equipment or
landing craft. Payload operations are aided by a crane for loading and unloading. The ship is equipped with a vehicle bay which can hold
pickup trucks,
all-terrain vehicles and
snowmobiles. The ship will also have two multi-role rescue boats capable of over . The ship will be armed with one
BAE Mk 38 gun and two
M2 Browning machine guns. The patrol ship has an onboard
hangar and
flight deck for helicopters up to the size of a
Sikorsky CH-148 Cyclone.
William Hall will have a complement of 65 and accommodation for 85 ==Construction and career==