in London on Anzac Day, 1922, and returned to Australia later that year. His first term as CAS began when Williams left the country in December 1922 for study in England. Goble developed a plan to establish a small seaplane base at Rushcutters Bay in Sydney, but Williams cancelled this shortly after he returned to Australia in February 1925 to resume the position of CAS. Goble's suggestion of a separate Fleet Air Arm fostered suspicions that he was too closely aligned with naval interests. He departed for England to undertake study at the British Army Staff College in Camberley and RAF Staff College, Andover, as Williams had done two years before. Goble also served as Air Liaison Officer with the Australian High Commission in London from May 1926 to September 1927. He was promoted to group captain on 1 April 1928. Raised to temporary air commodore, Goble took over as CAS for the second time between December 1932 and June 1934, while Williams attended the Imperial Defence College in London. On secondment to the RAF from 1935 to 1937, Goble was attached to the British Air Ministry as Deputy Director of Air Operations. In this capacity he attended a conference in 1936 to examine a Commonwealth-wide air training plan, a concept that would be revived in World War II as the Empire Air Training Scheme. Continuing his exchange posting, on 1 September Goble took over as Air Officer Commanding No. 2 (Bomber) Group, based in Hampshire. The group comprised fifteen squadrons, putting him in charge of a force stronger than the entire RAAF. On 28 February 1937, Goble was raised to temporary air vice marshal. He succeeded Williams as Chief of the Air Staff for the last time in February 1939, when the latter was dismissed from his position in the aftermath of the Ellington Report criticising the standards of training and air safety observed by the RAAF. When he replaced Williams, Goble was Air Member for Personnel and might therefore have been considered more closely responsible for such standards; he maintained that Williams had personally overseen the service's air training since 1934. Circumnavigation of Australia The young air force was a small, close-knit organisation comparable to a flying club, although several pioneering flights were undertaken by its members. One of the most notable was made by Goble and Flying Officer (later Flight Lieutenant) Ivor McIntyre in 1924, when they