Sub Hunters of the North

Derived from the Bristol Britannia, the four-engined Canadair CP-107 Argus served its nation well. Robert S Grant praises Canada’s much respected sub-hunter

Doing what it was designed to do, RCAF 20725 overflies a submarine while on a patrol mission. KEY COLLECTION

Flying low over the muddy Mackenzie River in Canada’s Northwest Territories in the late 1950s and early 1960s, the Canadair CP-107 Argus cast a huge shadow over the land and water it crossed. With a wingspan of more than 142ft (43m), the Argus was the largest aircraft ever built in Canada at that time.

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