In 1998 the Royal Australian Mint released two $5 dollar coins to commemorate seventy years since the founding of the Royal Flying Doctors Service (RFDS). The first type is an aluminium bronze proof with a limited mintage of 20,000. The second type is uncirculated bi-metal with a stainless steel ring and an aluminium bronze centre.
The Royal Flying Doctor Service (RFDS) was founded by Reverend John Flynn in 1928. Flynn had been working in remote Australia establishing bush hospitals for settlers when he was provided with a large bequest for 'an aerial experiment'. This aerial experiment began with a single bi-plane that was used to provide a safety net for pioneers in the Australian bush. The experiment was a success and today the RFDS has a fleet of 66 aircraft that operate to provide remote and rural Australians to emergency and primary health care services. The work of Reverend Flynn has also been recognised by his inclusion on the reverse of the Australian twenty-dollar note.