No. 40 Group RAF

No. 40 Group RAF is a former Royal Air Force Maintenance group that was operational from 1 January 1939, throughout the Second World War and into the Cold War until 28 July 1961 within RAF Maintenance Command that dealt with equipment, barracks stores and motor transport storage.

No. 40 Group Communication Flight was operational until 1 May 1944 with duties taken over by the Maintenance Command Communication Squadron RAF.

Structure
November 1939 – HQ at Abingdon May 1941 – HQ at Andover April 1942 – HQ at Andover April 1943 – HQ at Andover July 1944 – HQ at Andover July 1945 – HQ at Andover April 1953 – HQ at Bicester
 * 1, 3, 4, 7, 14, 16, 25, 35, A, B, C, D, E, F, G, H, L & K Maintenance Unit RAF
 * 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 22, 23, 24, 27, 29, 33, 37, 38, 39, 44, 45, 46, 47, 48, 51 & No. 52 Maintenance Unit RAF
 * RAF Hamble = No. 15 Ferry Pilots Pool ATA
 * Hatfield Aerodrome = No. 5 Ferry Pilots Pool ATA
 * RAF Hawarden = No. 3 Ferry Pilots Pool ATA
 * RAF Hullavington = No. 8 (Service) Ferry Pilots Pool RAF
 * RAF Prestwick = No. 4 Ferry Pilots Pool ATA
 * RAF Ratcliffe = No. 6 Ferry Pilots Pool ATA
 * RAF Ringway = No. 14 Ferry Pilots Pool ATA
 * Bristol (Whitchurch) Airport = No. 2 Ferry Pilots Pool ATA
 * RAF White Waltham = No. 1 Ferry Pilots Pool ATA
 * 3, 7, 14, 16, 17, 25, 35, 55, 61, 62, 66, 69, 70, 72, 74, 79, 82, 201, 204, 99, 203, 217, A, B, E, F, L, R & S Maintenance Unit RAF
 * 3, 5, 7, 14, 16, 17, 25, 35, 55, 61, 62, 66, 68, 69, 70, 72, 73, 74, 79, 87, 89, 99, 201, 203, 204, 205, 207, 208, 210, 211, 216, 228, 229, 232, 236, A, E, H & T Maintenance Unit RAF
 * 3, 7, 14, 16, 17, 25, 35, 61, 62, 66, 68, 69, 70, 72, 73, 74, 79, 87, 89, 99, 203, 204, 205, 207, 208, 209, 210, 211, 212, 214, 216, 217, 220, 221, 225, 227, 230, 232, 236, 238, 239, 240 & No. 241 Maintenance Unit RAF
 * No. 56 Wing RAF – HQ at Annan:
 * 3, 7, 14, 17, 35, 62, 68, 69, 70, 73, 74, 79, 87, 205, 208, 209, 210, 211, 212, 214, 217, 220, 225, 230, 232, 238, 239, 246 & No. 261 Maintenance Unit RAF
 * No. 55 (Midland) Wing RAF – HQ at Eggington:
 * 16, 25, 61, 66, 72, 89, 99, 203, 204, 207, 216, 221, 227, 236 & No. 241 Maintenance Unit RAF
 * 3, 5, 7, 8, 9, 10, 12, 14, 15, 16, 19, 20, 22, 23, 25, 27, 29, 33, 35, 38, 39, 44, 45, 47, 48, 51, 61, 66, 72, 90, 99, 216, 225, 236 7 No. 248 Maintenance Unit RAF
 * RAF Defford = Telecommunications Flying Unit RAF
 * RAF Felixstowe = Marine Aircraft Experimental Establishment
 * RAF Gosport = Aircraft Torpedo Development Unit
 * RAF Henlow = Parachute Test Unit
 * RAF Martlesham Heath = Armament and Instrument Experimental Unit RAF
 * RAF West Freugh = Bombing Trials Unit RAF

No. 42 (Maintenance) Group RAF
No. 42 (Maintenance) Group RAF was formed on 1 January 1939 as an Ammunition and Fuel group, it was disbanded into No. 40 Group RAF on 2 January 1956 while 42 Group was at RAF Kidlington.

November 1939 - HQ at Burghfield Common, Reading May 1941 - HQ at Burghfield Common, Reading April 1942 - Burghfield Common, Reading April 1943 - HQ at Burghfield Common, Reading July 1944 - HQ at Burghfield Common, Reading July 1945 - HQ at Burghfield Common, Reading April 1953 - HQ at RAF Kidlington
 * 2, 11, 21, 28, 91, 92, 93, 94 & No. 95 Maintenance Unit RAF
 * 2, 11, 21, 28, 36, 53, 91, 92, 93, 94, 95 & No. 98 Maintenance Unit RAF
 * 2, 11, 21, 31, 28, 36, 53, 59, 64, 81, 91, 92, 94, 93, 95, 96, 98 & No. 100 Maintenance Unit RAF
 * 2, 11, 21, 28, 31, 36, 53, 59, 64, 77, 80, 81, 91, 92, 93, 94, 95, 96, 98, 100, 202, 219 & No. 224 Maintenance Unit RAF
 * 2, 11, 21, 28, 31, 36, 53, 59, 64, 77, 80, 81, 91, 92, 93, 94, 95, 96, 98, 100, 202, 219, 231, 233, 224, 243 & No. 244 Maintenance Unit RAF
 * 2, 11, 21, 28, 31, 36, 53, 59, 64, 77, 80, 81, 91, 92, 93, 94, 95, 96, 98, 100, 202, 219, 224, 231, 233, 243, 244, 245 & No. 249 Maintenance Unit RAF
 * 2, 11, 21, 28, 31, 53, 91, 92, 93, 94, 95, 202, 243, 244, 277, 279, 280, 281 & No. 282 Maintenance Unit RAF