High Quality Content by WIKIPEDIA articles! Air Marshal Sir Richard Williams KBE, CB, DSO (3 August 1890 – 7 February 1980) is widely regarded as the "father" of the Royal Australian Air Force (RAAF). He was the first military pilot trained in Australia, and went on to command Australian and British fighter units in World War I. A proponent for air power independent of other branches of the armed services, Williams played a leading role in the establishment of the RAAF and became its first Chief of the Air Staff (CAS) in 1922. He served as CAS for thirteen years over three terms, longer than any other officer.