ABTF: Air Bombing Training Flight
AC: Aircraftman
AC1: Aircraftman First Class
AC2: Aircraftman Second Class
ACAC: Aircrew Allocation Center
ACATC: Air Cadets Adventure Training Center
ACC: Air Control Center
ACC: Allied Control Commission
ACC: Armoured Car Company
ACC: Army Co-operation Command
ACCF: Army Co-operation Command Communication Flight
ACCGS: Air Cadet Central Gliding School
ACDC: Aircrew Despatch Center
ACDU: Air Combat Development Unit
ACDU: Army Co-operation Development Unit
ACDW: Air Crew Disposal Wing
ACFSS: Air Cadets Flying Scholarship Scheme
ACGFSOC: Air Cadet Gliding Flight Safety Officer's Course
ACGIH: American Conference of Governmental Industrial Hygienists
ACGS: Assistant Chief of the General Staff
ACH: Advanced Chain Home
ACH: Air Craft Hand
ACHU: Aircrew Holding Unit
ACI: Air Council Instruction
ACIs: Air Council Instructions
ACM: Air Chief Marshal
ACO: Advanced Chain Overseas
ACO: Air Cadet Organisation
ACP: Air Cadet Publication
ACPNTS: Air Cadets Pilot Navigation Training Scheme
ACR: Airfield Control Radar
ACRC: Air Crew Reception Centre
ACRS: Air Crew Refresher School
ACS: Airfield Construction Squadron
ACSB: Air Crew Selection Board
ACSEA: Air Command South East Asia
ACSEA/ASS: Air Command South East Asia Air Service Squadron
ACTC: Air Cadet Training Centre
ACU: Air Conditioning Unit
ACW: Aircraft Control and Warning