The mysterious sighting, which took place at 9.30pm on February 7th, 1980, began when his brother Rob called out to draw his attention to something very strange in the sky near their home in Aldgate.
Looking towards the south-east of Adelaide, they saw a yellow object 'bobbing about' above the trees approximately 1km away, before a second object emitting a red light also appeared nearby.
For the next 15 minutes, the boys watched in amazement as the red object seemed to zoom towards the yellow object, then stop and reverse - as if attempting to provoke a reaction.
The two objects then began to zoom across the sky in a zig-zag pattern, as though engaged in a duel.
A third witness - 21-year-old farmhand Daryl Browne - claimed to have seen a yellow object 'shaped life a speedboat' actually crash into some trees near to where he was working.
The location perfectly matched where the two brothers had seen the objects in the sky.