Air of Authority - A History of RAF Organisation
Other Home Commands - April 1939
Maintenance Command (HQ - Andover)
Directly Administered by Command HQ*
| Unit | Location/Administered by |
| No 2 Maintenance Unit | RAF Altrincham |
| No 2 Maintenance Sub-Unit | RAF Pulham |
| No 5 Maintenance Unit | RAF Kemble |
| No 6 Maintenance Unit | RAF Brize Norton |
| No 8 Maintenance Unit | RAF Little Rissington |
| No 10 Maintenance Unit | RAF Hullavington |
| No 11 Maintenance Unit | RAF Chilmark |
| No 13 Maintenance Unit ** | RAF Henlow |
| No 20 Maintenance Unit | RAF Aston Down |
| No 21 Maintenance Unit | RAF Fauld |
| No 24 Maintenance Unit | RAF Tern Hill |
| No 26 Maintenance Unit | RAF Cardington |
| No 27 Maintenance Unit | RAF Shawbury |
| No 36 Maintenance Unit | RAF Sealand |
* Maintenance Command will assume all duties detailed in AMOs A1282/35 and A283/35 in connection with the administration of Maintenance Units except medical administration, pending posting of medical staff and allotment of aircraft, engines and MT.
** Under the command of OC, RAF Henlow but under Maintenance Command for organisation and policy
No 40 (Maintenance) Group (HQ - 81 Weyhill Road, Andover)
| Unit | Location/Administered by |
| No 1 Maintenance Unit | RAF Kidbrooke |
| No 3 Maintenance Unit | RAF Milton |
| No 4 Maintenance Unit | RAF Ruislip |
| No 25 Maintenance Unit | Hartlebury |
| 'A' Maintenance Unit | RAF Hendon |
| 'B' Maintenance Unit | Hammersmith |
| 'C' Maintenance Unit | Coventry |
| 'D' Maintenance Unit | Wembley |
| 'E' Maintenance Unit | Newport |
| 'F' Maintenance Unit | RAF Kenley |
| 'G' Maintenance Unit | Norwich |
No 41 (Maintenance) Group (HQ - Andover)
| Unit | Location/Administered by |
| No units allocated |
Balloon Command (HQ - Kelvin House, Cleveland Street, London W1)
Units administered directly by Command HQ
| Unit | Location/Administered by |
| No 1 Balloon Training Unit | RAF Cardington |
| No 918 (Balloon) Sqn | Pending formation of No 31 (Barrage Balloon) Group |
| No 919 (Balloon) Sqn | Pending formation of No 31 (Barrage Balloon) Group |
| No 922 (Balloon) Sqn | Pending formation of No 31 (Barrage Balloon) Group |
| No 927 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 928 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 929 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 930 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 932 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 933 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 935 (Balloon) Sqn | Pending formation of No 32 (Barrage Balloon) Group |
| No 936 (Balloon) Sqn | Pending formation of No 33 (Barrage Balloon) Group |
| No 942 (Balloon) Sqn | Pending formation of No 33 (Barrage Balloon) Group |
| No 944 (Balloon) Sqn | Pending formation of No 33 (Barrage Balloon) Group |
No 30 (Balloon) Group (HQ - Kelvin House, Cleveland Street, London W1)
| Unit | Location/Administered by |
| No 1 Balloon Centre | Kidbrooke, London |
| No 901 (Balloon) Sqn AAF | No 1 Balloon Centre |
| No 902 (Balloon) Sqn AAF | No 1 Balloon Centre |
| No 903 (Balloon) Sqn AAF | No 1 Balloon Centre |
| No 2 Balloon Centre | Hook, Surrey |
| No 904 (Balloon) Sqn AAF | No 2 Balloon Centre |
| No 905 (Balloon) Sqn AAF | No 2 Balloon Centre |
| No 3 Balloon Centre | Stanmore, Middlesex |
| No 906 (Balloon) Sqn AAF | No 3 Balloon Centre |
| No 907 (Balloon) Sqn AAF | No 3 Balloon Centre |
| No 4 Balloon Centre | Chigwell, Essex |
| No 908 (Balloon) Sqn AAF | No 4 Balloon Centre |
| No 909 (Balloon) Sqn AAF | No 4 Balloon Centre |
| No 910 (Balloon) Sqn AAF | No 4 Balloon Centre |
Reserve Command (Hendon, The Hyde, London NW9)
Units administered directly by Command HQ
| Unit | Location/Administered by |
| No 4 ERFTS | Brough |
| No 6 ERFTS | Sywell |
| No 7 ERFTS | Desford |
| No 11 ERFTS | Perth |
| No 12 ERFTS | Prestwick |
| No 17 ERFTS | Barton |
| No 22 ERFTS | Cambridge |
| No 25 ERFTS | Grimsby |
| No 27 ERFTS | Tollerton |
| No 28 ERFTS | Meir |
| No 30 ERFTS | Derby |
| RAFVR Town Centre | Cambridge - 'Leighton', Trumpington Road |
| RAFVR Town Centre | Derby - Highfields, Broadway |
| RAFVR Town Centre | Glasgow - 202-216 Bothwell Street |
| RAFVR Town Centre | Grimsby - 202 Victoria Street |
| RAFVR Town Centre | Hull - Newlands House, Beverley Road |
| RAFVR Town Centre | Manchester - Room No 19, 2d Floor, Sunlight House, Quay Street |
| RAFVR Town Centre | Northampton - The Lindens, Cliftonville |
| RAFVR Town Centre | Nottingham - Gordon House, Carrington Street (temporary) |
| RAFVR Town Centre | Perth - Durn, Isla Road |
| RAFVR Town Centre | Stoke on Trent - Stone Road, Trentham |
| Unit | Location/Administered by |
| No 1 Elementary and Reserve Flying Training School | Hatfield |
| No 2 ERFTS | Filton |
| No 3 ERFTS | Hamble |
| No 5 ERFTS | Hamworth |
| No 8 ERFTS | Reading |
| No 9 ERFTS | Ansty |
| No 10 ERFTS | RAF Yatesbury |
| No 13 ERFTS | White Waltham |
| No 14 ERFTS | Castle Bromwich |
| No 15 ERFTS | Redhill |
| No 16 ERFTS | Shoreham |
| No 18 ERFTS | Fairoaks Woking |
| No 19 ERFTS | Gatwick |
| No 20 ERFTS | Gravesend |
| No 21 ERFTS | Stapleford Tawney |
| No 23 ERFTS | Rochester |
| No 25 ERFTS | Grimsby |
| No 26 ERFTS | Oxford |
| No 29 ERFTS | Luton |
| No 31 ERFTS | Gloucester & Cheltenham |
| No 33 ERFTS | Whitchurch, Bristol |
| No 34 ERFTS | Southend-on-Sea |
| RAFVR Town Centre | Belfast - Donegall Chambers, Donegall Place |
| RAFVR Town Centre | Birmingham - 71/73 Colmore Row |
| RAFVR Town Centre | Brighton - 14/16 Eaton Road, Hove |
| RAFVR Town Centre | Bristol - 25 Julian Road, Stoke Bishop, Bristol 9 |
| RAFVR Town Centre | Coventry - 'The Grange', Keresley |
| RAFVR Town Centre | Gloucester & Cheltenham - Carrick House, Lypplatts Road, Cheltenham |
| RAFVR Town Centre | London - Staffordshire House, Store Street, Tottenham Court
Road (Pilots' Section) London - Staffordshire Lodge, 6 South Crescent, Store Street WC1, (Aircrew and Ground Section) (Temporary) |
| RAFVR Town Centre | Luton - 10 George Street West |
| RAFVR Town Centre | Oxford - Harberton House, Pullens Lane |
| RAFVR Town Centre | Reading - 'Silvesters' Berkeley Avenue |
| RAFVR Town Centre | Rochester - 143 High Street (temporary) |
| RAFVR Town Centre | Southampton - 'Elmsleigh', Gleneyre Road, Bassett |
| RAFVR Town Centre | Southend-on-Sea - Palmeira Towers, Westcliffe-on-Sea |
Observer Corps (Bentley Priory, Stanmore)
| Unit | Location |
| Northern Area | RAF Catterick |
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| Midland Area | RAF Grantham |
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| Southern Area | Bentley Priory |
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| Western Area | 11 Brunswick Road, Gloucester |
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| Scottish Area | 10 Alva Street, Edinburgh |
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Source - April 1939 Confidential Air Force List
County names used are those in use at the time
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