Australia embraced the new technologies of transport and communication. Coastal sailing ships were finally abandoned in favour of steam, and improvements in rail and motor transport heralded dramatic changes in work and leisure. In 1918 there were 50,000 cars and lorries in the whole of Australia. By 1929 there were 500,000. The stage coach company Cobb and Co, established in 1853, finally closed in 1924. In 1920, the Queensland and Northern Territory Aerial Service (to become the Australian airline Qantas) was established. The Reverend John Flynn, founded the Royal Flying Doctor Service, the world's first air ambulance in 1928. Dare devil pilot, Sir Charles Kingsford Smith pushed the new flying machines to the limit, completing a round Australia circuit in 1927 and in 1928 traversed the Pacific Ocean, via Hawaii and Fiji from the US to Australia in the aircraft "Southern Cross". He went on to global fame and a series of aviation records before vanishing on a night flight to Singapore in 1935.