ABBREVIATIONS and ACRONYMS

a Acceleration or atto (10-18 multiplier) AFIPS Automated Financial Information
A Ampere, Area, Altitude, Angstrom (Å), Processing System
Antenna Aperture, or Aerial (U.K.) AFOTEC Air Force Operational T&E Center
A-799 No evidence of failure report A/G Air-to-Ground
A/A, A-A, AA   Air-to-Air or Anti-Aircraft AGB Autonomous Guided Bomb
AA-() Air-to-Air missile number () AGC Automatic Gain Control
AAA Anti-Aircraft Artillery AGI Auxiliary General Intelligence
AAAA Army Aviation Association of America (Intelligence-gathering Ship)
AAED Advanced Airborne Expendable Decoy AGL Above Ground Level
AAM Air-to-Air Missile AGM Air-to-Ground Missile
AARGM Advanced Anti-Radiation Guided AGS Angle Gate Stealer
Missile (concept) AHWS Advanced Helicopter Weapons System
AAW Anti-Air Warfare AI Artificial Intelligence, Air Intercept, or
A-BIT Automatic Built-in-Test Airborne Interceptor
ABM Air Breathing Missile or AIAA American Institute of Aeronautics and
Anti-ballistic Missile Astronautics
A/C Aircraft (also acft.) AIC Air Intercept Control
AC Alternating Current AIM Air Intercept Missile
ACA Associate Contractor Agreement or AIRLANT Commander, U.S. Naval Air Forces,
Airspace Coordination Area Atlantic Fleet
ACAT Acquisition Category AIRPAC Commander, U.S. Naval Air Forces,
ACCB Aircraft Configuration Control Board Pacific Fleet
Acft Aircraft (also A/C) AJ Anti-jamming or Anti-Jam
ACLS Aircraft Carrier Landing System A-Kit Aircraft wiring kit for a system
ACM Advanced Cruise Missile or Air (includes cabling, racks, etc. excluding
Combat Maneuvering WRAs)
ACQ Acquisition AM Amplitude Modulation
ACS Antenna Coupler Set AMD Aircraft Maintenance Department
ACTD Advanced Concept Technology AMES Advanced Multiple Environment
Demonstration Simulator
A/D Analog to Digital AMLV Advanced Memory Loader/Verifier
Ada Not an acronym.  Ada is the DoD Amp Amplifier
standard programming language. AMRAAM Advanced, Medium-Range, Air-to-Air
ADM Advanced Development Model Missile
ADP Automatic Data Processing or ANSI American National Standards Institute
Advanced Development Program ANT Antenna
ADVCAP Advanced Capability Ao
Operational Availability
AEC Aviation Electronic Combat (Army) AO Acousto-Optical
AEGIS Automatic Electronic Guided Intercept AOA Angle of Arrival, Angle of Attack, or
System Analysis of Alternatives (similar to
AEL Accessible Emission Limit COEA)
AEW Airborne Early Warning AOC Association of Old Crows (Professional
AF Antenna Factor, Air Force, or Audio EW Society) or Award of Contract
Frequency AOT Angle Only Track, Angle Off Tail, or
AFB Air Force Base or Airframe Bulletin Acquisition-on-Target
AFC Automatic Frequency Control or APC Amphenol Precision Connector or
Airframe Change Armored Personnel Carrier

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APN Aircraft Procurement, Navy Avg Average
APO Armed Forces (or Army or Air) Post AWACS Airborne Warning and Control System
Office, Acquisition Program Office AZ Azimuth (also Az)
APU Auxiliary Power Unit
AR Anti-reflection or Aspect Ratio
ARM Anti-radiation Missile B Bandwidth (also BW) or Magnetic
ARO After Receipt of Order inductance
A/S, A-S, AS Air-to-Surface BAFO Best and Final Offer
ASCM Anti-ship Cruise Missile BATBULL Bat Bulletin - former VX-9 tactics
ASE Aircraft Survivability (or Survival) newsletter now called "On Target"
Equipment, Allowable Steering Error, BAU Bus Adapter Unit
or Automatic Support Equipment BC Bus Controller
ASIC Application Specific Integrated Circuit BDA Battle Damage Assessment
ASK Amplitude Shift Keying BDI Battle Damage Indication
ASM Air-to-Surface Missile BFO Beat Frequency Oscillator
ASO Aviation Supply Office BI Background Investigation
A-Spec System Specification BIFF Battlefield Identification, Friend, or Foe
ASPJ Airborne Self-Protection Jammer BIT Built-in-Test, Binary Digit  or
ASPO Avionics Support (also Systems) Battlefield Information Technology
Project Office (also Officer) BITE Built-in-Test Equipment
ASR Advanced Special Receiver or BIU Bus Interface Unit
Airport/Airborne Surveillance Radar B-Kit Avionics