Remember the days of old when one had to have the Decca but could launch without the Radar?
Seemed ass backwards to me....give up that magic eyeball that could see through darkness, fog, and cloud....for something that gave up the ghost at the first good whiff of Snow or any other kind of static.
Then there was the Consol station in Norway that was still operational...and pointed from the Ekofisk straight back to New Castle....broadcasting at something like 1500 Watts or some silly thing.