Air of Authority - A History of RAF Organisation
Training Command - January 1940
No 20 (Training) Group (HQ - Market Drayton)
| Unit | Location |
| No 3 School of Technical Training | Blackpool |
| No 6 School of Technical Training | Hednesford |
| No 8 School of Technical Training | Weeton (under construction) |
| No 9 School of Technical Training | Morecombe |
| No 10 School of Technical Training | Kirkham (under construction) |
| No 3 Recruits Centre | Padgate |
| No 4 Recruits Centre* | Bridgnorth |
| No 5 Recruits Centre | Saughall Massie |
| No 6 Recruits Centre | Stockport |
| No 7 Recruits Centre | Morecombe |
*1st Wing opens Jan 1940 with others wings at approximately monthly intervals
No 21 (Training) Group (HQ - Cranwell)
| Unit | Location |
| RAF College | RAF Cranwell |
| No 8 Service Flying Training School | RAF Montrose |
| No 12 Service Flying Training School | RAF Grantham |
| No 14 Service Flying Training School | RAF Kinloss |
| No 15 Service Flying Training School | RAF Lossiemouth |
| No 1 Electrical and Wireless School | RAF Cranwell |
| No 2 Electrical and Wireless School | RAF Yatesbury |
| No 3 Electrical and Wireless School | Calne (under construction) |
| No 4 Electrical and Wireless School | Gloucester (under construction) |
| No 5 Electrical and Wireless School | Wroughton (under construction) |
| RDF Signals Training School | Bawdsey |
| RDF School | RAF Yatesbury |
| Equipment Training School (Men) | RAF Cranwell |
| School of Clerks, Accounting | RAF Cranwell |
| Supplies Depot | RAF Cranwell |
| RAF Hospital | RAF Cranwell |
The following changes to the above took place before the issue of the next SD161
| Change | Note |
| An Officers Disciplinary Course was setup at Loughborough | AL3, 12 Feb 1940 |
| No 1 Practice Flying Unit was formed at Meir | AL3, 12 Feb 1940 |
No 23 (Training) Group (HQ - RAF Grantham)
| Unit | Location |
| Central Flying School | RAF Upavon |
| No 1 Service Flying Training School | RAF Netheravon |
| No 2 Service Flying Training School | RAF Brize Norton |
| No 3 Service Flying Training School | RAF South Cerney |
| No 5 Service Flying Training School | RAF Sealand |
| No 6 Service Flying Training School | RAF Little Rissington |
| No 7 Service Flying Training School | RAF Peterborough |
| No 9 Service Flying Training School | RAF Hullavington |
| No 10 Service Flying Training School | RAF Tern Hill |
| No 11 Service Flying Training School | RAF Shawbury |
| School of Air Navigation | RAF St Athan - Station in No 24 Group (Temporary) |
No 24 (Training) Group (HQ - Halton Camp)
| Unit | Location |
| No 1 RAF Depot | RAF Uxbridge |
| No 1 Recruits Centre | RAF Uxbridge |
| No 2 Recruits Centre | RAF Cardington |
| No 8 Recruits Centre | RAF Manston |
| No 1 School of Technical Training | RAF Halton |
| No 2 School of Technical Training | RAF Cosford |
| No 4 School of Technical Training | RAF St Athan |
| No 5 School of Technical Training | RAF Locking |
| No 11 School of Technical Training | Hereford (under construction) |
| Miscellaneous Technical Training Unit | RAF Henlow |
| School of Physical Training | RAF Uxbridge |
| RAF Service Police HQ and School | RAF Uxbridge |
| Personnel Despatch Centre | RAF Uxbridge |
| School of Cookery | RAF Halton |
| Equipment Training School (Officers) | RAF Halton |
| Equipment Training School (Officers) | RAF Little Rissington |
| School of Aeronautical Engineering (Officers) | RAF Henlow |
| Anti-Gas School | Rollestone Camp |
| School of Administration | Gerrards Cross |
| School of Photography | RAF Farnborough |
| Medical Training Depot | RAF Halton |
| RAF Institute of Pathology and Tropical Medicine | RAF Halton |
| RAF Central Band | RAF Uxbridge |
| Air Ministry W/T Station (Receiving) | RAF Leighton Buzzard |
| Air Ministry W/T Station (Transmitting)* | Dagnall |
| Air Ministry W/T Station (Transmitting)* | Greenford |
| Air Ministry W/T Station (Receiving)* | RAF Cardington |
| Air Ministry W/T Station (Meteorological Section)* | Dunstable |
| Air Ministry Signals Section* | Whitehall |
| Air Ministry Signals Section* | Harrow |
| Air Ministry Signals Section* | Harrogate |
| Air Ministry Signals Section* | Worcester |
| Central Medical Establishment | London |
| Inspector of Recruiting | London |
| Aeroplane and Armament Experimental Establishment | RAF Boscombe Down |
| Blind Approach Development Flight** | RAF Boscombe Down |
| Special Duty Flight | RAF St Athan |
| Record Office | Ruislip |
| RAF Depository (Officers' and Airmen's effects)*** | Colnbrook |
| Central Trade Test Board | RAF Uxbridge |
| WAAF Depot | RAF West Drayton |
| RAF Hospital (Officers) | RAF Uxbridge |
| Princess Mary's Hospital | RAF Halton |
| RAF Hospital | Littleport |
| RAF Officers' Convalescent Hospital | Torquay |
| RAF Neurological Hospital | Matlock |
| RAF Training School (Polish personnel - ground training)**** | Eastchurch |
*Satellite stations of AM W/T Station, Leighton Buzzard
**Administered by Boscombe Down, operational control by CFS, Upavon
***Administered by Record Offices
****Under No 24 Group for personnel and medical matters only. Directly under Training Command for all other purposes
No 25 (Armament) Group (HQ - Brize Norton)
| Unit | Location |
| Central Gunnery School | RAF Warmwell |
| No 1 Air Armament School | RAF Manby |
| No 2 Air Armament School | RAF Pembrey |
| No 3 Air Observers School | RAF Aldergrove |
| No 4 Air Observers School | RAF West Freugh |
| No 5 Air Observers School | RAF Jurby |
| No 7 Air Observers School | RAF Porthcawl |
| No 8 Air Observers School | RAF Evanton |
| No 9 Air Observers School | RAF Penrhos |
| No 10 Air Observers School | RAF Warmwell |
| No 9 Recruits Centre | RAF North Coates |
| No 1 Ground Defence Gunnery School | RAF North Coates |
The following changes to the above took place before the issue of the next SD161
| Change | Note |
| Air Observer Schools were redesignated Bombing & Gunnery School | AL1, 25 Jan 1940 |
| No 2 Air Armament School was redesignated No 6 Bombing and Gunnery School | AL1, 25 Jan 1940 |
| No 6 Bombing and Gunnery School revert to No 2 Air Armament School | AL3, 12 Feb 1940 |
| No 9 Recruits Centre at RAF North Coates disbanded | AL4, 12 Mar 1940 |
Source - SD161 (2nd Issue), January 1940
County names used are those in use at the time
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