An invention conceived by Defence scientist David Warren in Melbourne in the 1950s that went on to transform aviation safety around the world has been chosen to feature on a commemorative coin by the Royal Australian Mint. 

The black box flight recorder will feature in the ‘Bright Ideas’ coin collection, celebrating five Australian inventions that have become part of everyday life here and around the world. 

The black box flight recorder will be celebrated alongside the humble jaffle maker, the stump jump plough, the baby safety capsule and wireless local area network (WLAN) technology as one of the nation’s five best-known inventions. 

Defence Science and Technology Group’s headquarters building in Canberra is named in Dr Warren’s honour, and his remarkable life story has even been told in a theatre production.

Yet his name remains less familiar than the bright idea that has enabled investigators to understand aircraft accidents and helped to prevent their recurrence.

Dr Warren’s interest in electronics began during his school years. He built radios after learning to use a crystal set given to him by his father, who was killed in 1934 in one of Australia’s earliest air disasters.

Years later, while working at the Aeronautical Research Laboratories, Dr Warren contributed to an investigation into a series of crashes involving the world’s first jet-powered commercial aircraft, the Comet.

'This collaboration with the Royal Australian Mint recognises Dr David Warren’s extraordinary legacy and celebrates the role of Australian science in shaping a safer world.'

At the time, little information was available to explain such incidents, but he recalled seeing a miniature recorder at a trade fair and envisaged a device that could continuously capture flight data and voices in the cockpit.

When his idea initially failed to attract interest, Dr Warren decided to design and build an experimental recorder to demonstrate the concept.

Chief Defence Scientist Professor Tanya Monro said Dr Warren’s work demonstrates the significance and lasting influence of Australian innovation.

“Few Australian inventions have had such a profound impact on global safety as the black box flight recorder,” Professor Monro said.

“This collaboration with the Royal Australian Mint recognises Dr David Warren’s extraordinary legacy and celebrates the role of Australian science in shaping a safer world.”

The value of his idea was finally recognised, and the modern equivalent of Dr Warren’s device is installed in passenger aircraft worldwide.

In the event of an accident, a flight recorder provides evidence that can help to improve aircraft design, enhance operating procedures and strengthen safety.

The ‘Bright Ideas’ coin collection will be on sale on October 8.