RAF
| 1918 | Instructor | |
| Aug 1918 | Flight Commander, No. 43 Squadron RAF | (Camel, Snipe – Western Front) |
| 1 Jul 1919 | Pilot, Aeroplane Experimental Station, Martlesham Heath. | |
| 1 Aug 1919 | Relinquishes his commission in the Bedfordshire Regiment (retaining rank of Lieutenant) | |
| 28 Oct 1919 | Granted a Permanent Commission in the rank of Flight Lieutenant (effective from 1 Aug) | |
| 16 Mar 1920 | Pilot, at the renamed Aeroplane and Armament Experimental Establishment | |
| 24 Jul 1923 | Flight Commander, No. 22 Sqn.. Trials aircraft – Martlesham Heath | |
| 4 May 1925 | Attended RAF Staff College | |
| 12 Apr 1926 | Staff, HQ No. 22 Group | |
| 21 Sep 1926 | supernumerary - awaiting disposal, HQ Iraq Command | |
| 3 Sep 1927 | Staff, Deputy Directorate of Staff Duties. | |
| 9 Jan 1929 | Test Pilot, Marine Aircraft Experimental Establishment | |
| 2 Dec 1929 | Officer Commanding, Flying Boat Development Flight. | |
| 11 May 1931 | Officer Commanding, RAF High Speed Flight. | |
| 2 Jan 1932 | Staff, HQ No. 1 Air Defence Group | |
| 22 Sep 1933 | Senior Air Staff Officer (SASO), HQ Aden Command | |
| 1 May 1936 | Staff, Directorate of Staff Duties | |
| 12 Jan 1937 | Attended Imperial Defence College | |
| 20 Dec 1937 | Officer Commanding, RAF Northolt | |
| 15 Oct 1939 | Duty Air Commodore, HQ RAF Fighter Command | |
| 29 Jul 1940 | Director of Flying Training | |
| 15 Oct 1940 | Air Staff, HQ RAF Fighter Command | |
| 22 Jul 1941 | AOC, No. 10 (Fighter) Group | |
| 4 Nov 1942 | ||
| 2 Mar 1943 | Deputy Chief of Combined Operations |
Read more about this topic: Augustus Orlebar, Service Career, Service Record