It's 1950s Canada. There's a stated need for a long range, all-weather supersonic interceptor to counter a perceived threat of Soviet strategic bombers attacking North America. The role was intended for the CF-105, and then when the strategic bomber threat vanished in the shadow of the ICBM, the RCAF went with CF-101 Voodoos to counter the remaining threats.
However, instead of a fighter, what bomber or recon aircraft from the 1950s can we use to replace the CF-105 in its intended role of strategic bomber interception over NORAD's far north?
My first thought was a missile/radar equipped General Dynamics F-111. However this doesn't fly until the 1963, and is not introduced until 1967, more than ten years after the CF-105 was canceled.