BANS: Basic Air Navigation School
BARU: Base Aircraft Repair Unit
BARU: British Airways Repair Unit
BAS: Beam Approach School
BAS&HEDS: Bomber Airborne Support & Heavy Equipment Dropping Squadron
BAT: Beam Approach Training
BATDU: Blind Approach Training & Development Unit
BATF: Beam Approach Training Flight
BATTS: Beam Approach Technical Training School
BB: Beddown Base
BBCS: Bengal/Burma Communication Squadron
BBOC: Brought Back on Charge
BBU: Bomb Ballistics Unit
BC: Basic Component
BC: Bomber Command
BCAir: British Commonwealth Air Component
BCAS: Bomber Command Armament School
BCATP: British Commonwealth Air Training Plan
BCBS: Bomber Command Bombing School
BCCF: Bomber Command Communication Flight
BCDU: Bomber Command Development Unit
BCFFU: Bomber Command Film Flight Unit
BCHU: Bomber Command Holding Unit
BCIR&EF: Bomber Command Instrument Rating & Examining Flight
BCIS: Bomber Command Instructors School
BCMC: Bomber Command Modification Centre
BCOF: British Commonwealth Occupation Force
BCRS: Bomber Command Radar School
BCTAE: British Commonwealth Trans Antarctic Expedition
Bde: Brigade
BDR: Battle Damage Repair
BDT: Bomber Defence Training
BDTF: Bomber Defence Training Flight
BDU: Balloon Development Unit
BDU: Bomb Disposal Unit
BDU: Bomber Development Unit
BDU: Bombing Development Unit
BE: Bioenvironmental Engineering
BEE: Bio-Environmental Engineer
BEF: British Expeditionary Force