The greatest concentration of noise ever in Canberra would shatter the skies on this day in 1964, when 24 jet fighters and bombers of the huge US Navy aircraft carrier Enterprise would take part in a fly-past.
A Department of Civil Aviation spokesperson warned the public that there would be 10 minutes of severe noise levels while the jets flew over Canberra.
A McDonnel Phantom fighter would give a solo demonstration of acceleration and climbing from a low cruise speed, streaking from about 1500 ft to about 10,000 ft in a few seconds.
The plane would not break the sound barrier, but the noise of its twin jets would approach the 130 decibels associated with the sonic boom.
Meanwhile, also causing a big racket, holidaying Canberra school children broke into at least 15 holiday homes at Mossy Point on the South Coast. Homes had been turned into shambles.
In several cases, windows were smashed to gain entry.
One of the homes belonged to Vice-Admiral, Sir Roy Dowling.
Police said it was left in a filthy state with jam all over the walls.
Five children aged between four and 14 years were interviewed.