| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 15 | 320 | Pembroke Dock | Pembrokeshire | 01/06/40 | Formed. Fokker T VIII, 06/40. Anson I, 08/40. |
| 18 | 320 | Leuchars | Fife | 01/10/40 | Day of month arbitrary. Hudson I, 10/40. Hudson II, 03/41. Hudson III, 07/41, Hudson V, 01/42. |
| 16 | 320 | Bircham Newton | Norfolk | 24/04/42 | Hudson VI, 08/42. To Bomber Command, 15/03/43. |
| 320 | Silloth | Cumbria | 01/10/40 | Date arbitrary. Detachment. Left 04/42. | |
| 15 | 320 | Carew Cheriton | Pembrokeshire | 01/10/40 | Date arbitrary. Detachment. Abosrbed No.321 Squadron, 18/01/41. Left 04/42. |