Harry Kauper
Harry Kauper was born on 12 March 1888 at Hawthorn, Melbourne. Like Hawker he became an automotive mechanic, specialising in the electrical systems. He too came to England to study aviation and after working at Sunbeam joined the Sopwith Aviation Company in June 1912. Working at Brooklands he introduced Hawker to Sopwith. Apart from accompanying Harry on the Circuit of Britain Race he also went with him when Hawker demonstrated the Sopwith Tabloid to the Australian public. He developed the Sopwith-Kauper interrupter gear to allow a machine gun to fire through the propellor arc. He returned to Australia in 1919 and had a successful career in radio broadcasting.
Project Hawker 2013 
I have in resent week found that Harry Kauper was born in Auburn Rd Hawthorn. After the war and his service with the RAF Kauper returned to Australia and with Captain Harry Butler started South Australian Airlines out of Adelaide.He was instrumental in helping set up the radio system for Reverent Flynn and the Royal Flying Doctor Service. As an amateur radio broadcaster his signals were well known around the world. After working for the ABC he returned to Melbourne working for the Herald and Weekly Times then run by Sir Keith Murdock and built the transmitter at 3DB. he lived in Lennox St Richmond with his wife Beatrix and in 1939 at the start of the Second World war went to work with the RAAF with his old friend Eric Harrison as a radio specialist.