| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 6 | 207 | Cranfield | Berkshire | 03/09/39 | Battle I, 04/38. Anson I, 07/39. Became No.12 OTU, 08/04/40. |
| 5 | 207 | Waddington | Lincolnshire | 01/11/40 | Reformed. Manchester I, 11/40. Hampden I, 07/41. |
| 5 | 207 | Bottesford | Leicestershire | 17/11/41 | Lancaster I, 03/42. Lancaster III, 03/42. |
| 5 | 207 | Langar | Nottinghamshire | 20/09/42 | |
| 5 | 207 | Spilsby | Lincolnshire | 12/10/43 |