1 July 1936 Air Commodore W A McClaughry 28 September 1938 Air Vice-Marshal G R M Reid 10 September 1941 Air Vice-Marshal F G D Hards 12 January 1943 Air Vice-Marshal F H MacNamara (RAAF) 12 March 1945 Air Vice-Marshal H T Lydford 8 March 1948 Air Vice-Marshal A C Stevens 1 March 1950 Air Vice-Marshal F J Fressanges 11 March 1952 Air Vice-Marshal D Macfadyen 12 October 1953 Air Vice-Marshal S O Bufton 17 September 1955 Air Vice-Marshal L F Sinclair