posting with No. 55 Squadron in the Middle East to the RAF Depot (Inland Area) in England as a supernumerary officer on 4 November. From there he was assigned to serve in the Directorate of Training and Organisation in the Air Ministry from 18 February 1922, then in the Directorate of Operations and Intelligence from 15 May 1922. He then returned to flying, taking command of No. 32 Squadron, based at RAF Kenley, on 1 July 1923, but was reassigned to command No. 24 Squadron, also based at Kenley, on 1 November. During the Fifth RAF Aerial Pageant, held at Hendon Aerodrome on 28 June 1924, Maxwell led the Kenley team to victory in the Relay Race Challenge Cup, piloting a Sopwith Snipe. On 22 September 1925 Maxwell took command of No. 47 Squadron, based at RAF Helwan in Egypt. In early 1927 he took part in a flight from Egypt to South Africa, carried out in conjunction with aircraft from the South African Air Force. The four Fairey IIIFs, under the command of Air Commodore Charles Rumney Samson, flew from RAF Heliopolis to Aswan on 30 March, arriving at Khartoum the next day. They then flew via Malakal and Mongalla in Sudan, to Kisumu in Kenya by 4 April, where four South African Airco DH.9s arrived the next day. After air manoeuvres at Nairobi, the combined flight departed on 10 April, flying via Tabora, Tanganyika and Ndola, Northern Rhodesia, to Pretoria by 16 April. The RAF aircraft then flew on alone to Bloemfontein, then to Cape Town by 21 April, completing the outward journey. After five days' rest they flew to Grahamstown for more co-operation flights with the SAAF. They left Pretoria again on 9 May, retracing their route north, and arriving back at Cairo on 22 May, having covered . On 1 November 1927 he took command of No. 70 Squadron, based in Iraq. He was promoted to wing commander on 1 January 1930, and returned to the Home Establishment on 2 November 1930, posted to the Depot at RAF Uxbridge. On 7 March 1931 he was assigned to serve at the headquarters of No. 23 (Training) Group at RAF Grantham, pending a posting to the RAF Armament Practice Camp at RAF North Coates Fitties. On 22 October 1931 he was posted back to the headquarters of No. 23 Group for Air Staff duties, remaining there until 6