The flyover on Saturday celebrates the crossing of the mountains by Gregory Blaxland, William Lawson and William Wentworth and will include gyrocopters, warbirds, Cessnas and even an RAAF Hercules.
Thousands of spectators are expected to watch the flyover from 11 sites set up for the event along the route.
The fleet starts out at Emu Plains at 11.30am (AEST) and is due to fly through the Blue Mountains to Mount York, before heading out to Bathurst.
A descendant of each of the three explorers will take part in the flyover as passengers.
Source: Sky News Australia
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