ALSE: Aviation Life Support Equipment
AM: Air Marshal
AM: Air Ministry
AMC: Aerospace Medicine Council
AMC: Air Mobility Command
AMDP: Air member for development & Production
AMES: Air Ministry Experimental Station
AMMF: Air Ministry Meteorological Flight
AMO: Air Ministry Order
AMO: Air Movement Order
AMRS: Air Ministry Research Station
AMSDU: Air Ministry Servicing Development Unit
AMWD: Air Ministry Works Department
ANBS: Air Navigation & Bombing School
ANS: Air Navigation School
AOC: Air Officer Commanding
AOCU: Andover Operational Conversion Unit
AOG: Aircraft On the Ground
AONS: Air Observer's Navigation School
AOP: Air Observation Post
AORG: Army Operational Research Group
AOS: Air Observer's School
AOTS: Aircrew Officers Training School
AP: Air Publication
AP: Aircraft Park
APC: Armament Practice Camp
APCS: Aden Protectorate Communication Squadron
APDU: Air Photography Development Unit
APF: Air Pilotage Flight
APMF: Aerial Port Mobility Flight
APS: Air Pilotage School
APS: Armament Practice Station
APSF: Aden Protectorate Support Flight
APU: Aircraft Preparation Unit
ARC: Aircrew Reception Centre
ARC: Aircrew Recruiting Centre
ARD: Aircraft Repair Depot
ARF: Air Radar Fitter
ARF: Aircraft Repair Flight
ARP: Aircraft Repair Park