| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 6 | 97 | Leconfield | Yorkshire | 03/09/39 | Whitley II, 02/39. Whitley III, 02/39. Anson I, 02/39. |
| 6 | 97 | Abingdon | Berkshire | 17/09/39 | Became No.10 OTU, 08/04/40. |
| 6 | 97 | Driffield | Yorkshire | 01/05/40 | Reformed. Disbanded 20/5/40 |
| 5 | 97 | Waddington | Lincolnshire | 25/02/41 | Reformed. Manchester I, 02/41. |
| 5 | 97 | Coningsby | Lincolnshire | 10/03/41 | Hampden I, 07/41. Lancaster I, 01/42. Lancaster III, 01/42. |
| 5 | 97 | Woodhall Spa | Lincolnshire | 02/03/42 | To 8 Group, 18/04/43. |
| 8 | 97 | Bourn | Cambridgeshire | 18/04/43 | Ex-5 Group. To 5 Group 18/04/44. |
| 5 | 97 | Coningsby | Lincolnshire | 18/04/44 | Ex-8 Group. |