[3] After working for Sunbeam, in June 1912 he got a job as a mechanic with Thomas Sopwith's flying school at Brooklands.
In August 1913 Kauper, accompanied Harry Hawker, by then qualified as a pilot, as his mechanic in the £5000 Daily Mail Circuit of Britain race.
[4] In January 1914 Kauper accompanied Hawker on his trip to Australia to demonstrate the Sopwith Tabloid to the Australian Defence Department.
Here he developed the Sopwith-Kauper interrupter gear which allowed the firing of a machine-gun through a rotating aircraft propeller.
[5] In 1940 he was appointed to the Australian Aeronautical Inspection Directorate and put in charge of the radio, electrical and instrument section.