Air of Authority - A History of RAF Organisation
Technical Training Command - July 1940
No 20 (Training) Group (HQ - Market Drayton)
| Unit | Location |
| No 2 School of Technical Training (Temporarily closed) | RAF Cosford |
| No 3 School of Technical Training | Blackpool |
| No 6 School of Technical Training | Hednesford |
| No 8 School of Technical Training | Weeton |
| No 9 School of Technical Training | Morecombe |
| No 10 School of Technical Training | Kirkham |
| No 3 Recruits Centre | Padgate |
| No 4 Recruits Centre | Bridgnorth |
| No 5 Recruits Centre | Saughall Massie |
| No 6 Recruits Centre | Wilmslow |
| No 7 Recruits Centre | Morecombe |
| No 9 Recruits Centre | Blackpool |
| No 10 (Signals) Recruits Centre | Blackpool |
| No 1 Equipment Training School (Officers) | Grange-over-Sands |
| Equipment Training School (Airmen) | RAF Cranwell |
| RAF Hospital | Rauceby, transferred from Cranwell |
| Aviation Candidate Selection and Medical Board | Padgate |
| Airmen's Convalescent Depot | Blackpool |
No 24 (Training) Group (HQ - Halton Camp)
| Unit | Location |
| No 1 School of Technical Training | RAF Halton |
| No 4 School of Technical Training | RAF St Athan |
| No 5 School of Technical Training | RAF Locking |
| No 7 School of Technical Training | Hereford (opens 4 Jun 1940) |
| No 11 School of Technical Training | Hereford (under construction) |
| No 12 School of Technical Training | Melksham (under construction) |
| No 1 RAF Depot | RAF Uxbridge |
| No 1 PAC Pool | RAF Uxbridge |
| No 1 Recruits Centre | RAF Uxbridge |
| No 2 Recruits Centre | RAF Cardington - Station in Balloon Command |
| Engineering Course (Officers) | RAF Cosford |
| Miscellaneous Technical Training Unit | RAF Henlow - Station in Maintenance Command |
| School of Physical Training | RAF Uxbridge (to move to Loughborough) |
| RAF Service Police | RAF Uxbridge |
| Personnel Despatch Centre | RAF Uxbridge |
| School of Cookery | RAF Halton |
| School of Aeronautical Engineering (Officers) | RAF Henlow - Station in Maintenance Command |
| Anti-Gas School | Rollestone Camp |
| School of Administration | Gerrards Cross (WAAF) |
| School of Photography | RAF Farnborough |
| Medical Training Depot | RAF Halton |
| RAF Institute of Pathology and Tropical Medicine | RAF Halton |
| RAF Central Band | RAF Uxbridge |
| No 1 Camouflage Unit | Baginton (Parent Unit - RAF Cosford) |
| Central Medical Establishment | London |
| Inspector of Recruiting | London |
| Record Office | Ruislip |
| Hospitals Base Accounts Office | Ruislip |
| Central Trade Test Board | RAF West Drayton |
| Personnel Transit Centre | RAF West Drayton |
| WAAF Depot | RAF West Drayton |
| RAF Depository (Officers' and Airmen's effects)* | Colnbrook |
| WAAF Hospital | RAF Uxbridge |
| Princess Mary's Hospital | RAF Halton |
| RAF Hospital | Littleport |
| RAF Officers' Convalescent Hospital | Torquay |
| RAF Neurological Hospital | Matlock |
| RAF Training School | RAF Eastchurch |
| Aviation Candidate Selection Board | RAF Uxbridge |
| Aviation Candidate Selection Board | RAF Cardington - Station in Balloon Command |
| No 2 (Ground) Armament School | RAF Manby - Station in Flying Training Command |
| No 3 (Ground) Armament School | RAF Porthcawl - Station in Flying Training Command |
*Administered by Record Office
No 26 (Signals) Group (HQ - Langley Hall, Langley, Slough, Berks)
| Unit | Location |
| RAF Central Teleprinter Exchange | RAF Leighton Buzzard |
| RAF Inter-Command W/T Receiving Station | RAF Leighton Buzzard |
| Air Ministry Communication Staff | Whitehall (Administered by AM Unit, London) |
| RAF Unit | Worcester |
| Air Ministry Communication Staff (Western Area) | Worcester (Administered by RAF Unit, Worcester) |
| RAF Station Harrogate | Harrogate, North Riding of Yorkshire |
| Air Ministry Communication Staff | Harrogate (Administered by RAF Station, Harrogate) |
| Air Ministry Communication Staff | Harrow (Administered by Leighton Buzzard) |
| Air Ministry Communication Staff | 'Z' |
| Air Ministry W/T Station | Cheadle |
| Air Ministry W/T Station | Sutton Vallence |
| Air Ministry W/T Station | Waddington |
| Air Ministry W/T Station | Montrose |
| Air Ministry W/T Station | Lydford |
| Air Ministry W/T Station | Dagnall (Parent Station - Leighton Buzzard) |
| Air Ministry W/T Station | Greenford (Parent Station - Leighton Buzzard) |
| Air Ministry W/T Station | RAF Cardington (Parent Station - Leighton Buzzard) |
| Air Ministry W/T Station | Dunstable (Parent Station - Leighton Buzzard) |
| Air Ministry W/T Station | Bodmin (Parent Station - St Eval) |
| No 1 Supplementary School of Wireless Training | Hamble |
| No 2 Supplementary School of Wireless Training | Prestwick |
| Emergency W/T Fitting Parties | |
| Operational and Development Party (Signals) | RAF Kidbrooke |
| RAF Code and Cypher School | Oxford |
| 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) |
| Special Signals School | RAF Yatesbury |
| No 1 Signals Depot | White Waltham |
Source - SD161 (4th Issue), Jul 1940
County names used are those in use at the time
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