Australian black box inventor honoured on commemorative coin

The Royal Australian Mint will issue a commemorative coin depicting the black box flight recorder, the Australian Department of Defence said. It is one of five Australian inventions in the Mint's Bright Ideas collection, which goes on sale on October 8, 2026.

The other four items on the coins are a sandwich press, an agricultural plough, a baby capsule and wireless networking technology.

The flight recorder was devised in the 1950s by David Warren, a scientist at the Aeronautical Research Laboratories in Melbourne. He had built radios as a child, learning from his father, who died in 1934 in one of Australia's earliest air disasters.

Warren later joined the investigation into a series of crashes involving the de Havilland Comet, the first jet-powered commercial airliner, at a time when investigators had few answers about why the aircraft came down. After seeing a miniature recorder at a trade fair, he proposed a device that would continuously capture flight data and cockpit voices.

His proposal attracted little attention at first, so Warren built an experimental unit himself to demonstrate that it worked. The concept was eventually taken up, and versions of the device now fly on passenger aircraft worldwide.

Following an accident, recorder data helps investigators establish what happened. Their findings feed into aircraft design and operating procedures, with the aim of preventing similar accidents.

Warren remains far less familiar to the public than the equipment he created.