On this day in 1956 at 3:27 p.m., local time, a Mk.1 Atom Bomb, Blue Danube, detonated at 490 feet (150 meters) over the Kite Site on the Maralinga Test Range, South Australia. The bomb had been dropped from an RAF Vickers Valiant B.1 bomber, WZ366, flying at 30,000 feet (9,144 meters).
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