| AAEE | Aeroplane & Armament Experimental Establishment |
| AAS | Air Armament School |
| ACSEA | Air Command South East Asia |
| AD | Aircraft Depot |
| ADF | Aircraft Delivery Flight |
| ADU | Aircraft Delivery Unit |
| AFS | Advanced Flying School |
| AGS | Air Gunners School |
| AHQ | Airfield Headquarters |
| ANS | Air Navigation School |
| APC | Armament Practice Camp |
| APS | Armament Practice Station |
| APU | Aircraft Preparation Unit |
| ASP | Air Stores Park |
| ASR | Air Sea Rescue |
| AST | Air Service Training |
| ATA | Air Transport Auxiliary |
| BSDU | Bomber Support Development Unit |
| CAACU | Civilian Anti-Aircraft Co-Operation Unit |
| CACF | Coast Artillery Co-Operation Flight/Unit |
| CGS | Central Gunnery School |
| CMU | Civil Maintenance Unit |
| CRO | Civilian Repair Organisation |
| CRS | Central Radio School |
| CRU | Civilian Repair Unit |
| CTU | Combat Training Unit |
| CU | Conversion Unit |
| EP | Equipment Park |
| FLT | Flight |
| FP | Ferry Pool (ATA) |
| FPP | Ferry Pilots Pool Organisation |
| FRS | Flying Refresher School |
| FTS | Flying Training School |
| FTU | Ferry Training & Aircraft Despatch Unit |
| FU | Ferry Unit |
| GCF | Group Communication Flight |
| GDC | Group Disbandment Centre |
| GP | Group Pool |
| GRP | Group |
| GSU | Group Support Unit |
| HAL | Heston Aircraft Ltd |
| HCU | Heavy Conversion Unit |
| Med | Mediterranean |
| MU | Maintenance Unit |
| OADU | Overseas Aircraft Despatch Unit |
| OCU | Operational Conversion Unit |
| OTU | Operational Training Unit |
| PAFU | (Pilots) Advanced Flying Unit |
| PATP | Packed Aircraft Transit Pool |
| PDU | Photographic Development Unit |
| PRFU | (Pilot) Refresher Flying Unit |
| PRU | Photographic Reconnaissance Unit |
| R-RH | Rolls Royce Hucknall |
| ROS | Repair On Site Parties (Came under the control of MU's) |
| RSU | Repair & Salvage Sections/Units |
| S | Squadron |
| SC | Salvage Centre |
| SGR | School Of General Reconnaissance |
| SLG | Satellite Landing Grounds |
| SOTT | School Of Technical Training |
| SP | Staging Post |
| SU | Servicing Unit |
| TAF | 2nd Tactical Air Force |
| TEU | Tactical Exercise Units |
| WNG | Wing |