Aeronautical Information Publication 
Airport Improvement Program 
American Institute of Physics 
Aeronautical Information Package 
Aeronautical Information Publications 
airguard 
Association of Internet Professionals 
Allied Intelligence Publication 
Approval in Principle 
arc ion plating 
Associazione Informatici Professionist… 
Auto-ignition Point 
acute intermittent porphyria 
Adaptive Internet Protocol 
Advanced Interconnect Program 
Aerothermal Instrumentation Package 
agreement in principle 
AIM Interface Processor 
Air Independent Propulsion 
Air-Independent Propulsion 
Airport Improvement Plan 
American Insititute of Physics 
Annual Implementation Plan 
Archival Information Package 
Assembly Integration Panel 
Assurance Implementation Plan 
Astrophysikalisches Institut Potsdam 
Attendant Indication Panel 
Attitude Indicator Panel 
Avionics Integration Plan