Spacecraft Abbreviations and Acronyms
- AOCEAttitude and Orbit Control Electronics
- AOCSAttitude Orbit Control System
- AOPAirport Operating Plan
- APAutopilot
- APASAndrogynous Peripheral Attach System
- APCAuto Pilot Computer
- APFDAutopilot Flight Director
- APFDSAutopilot Flight Director System
- APMAircraft Personality Module
- AR&DAutomated Rendezvous and Docking
- AR&DAutonomous Rendezvous & Docking
- ARINCAeronautical Radio, Incorporated
- ARINCAeronautical Radio Incorporated
- ARPOAutomated Rendezvous and Proximity Operations
- ASDAircraft Situation Display
- ASDLAeronautical Satellite Data Link
- ATAuto Throttle
- ATAntenna
- ATCAir Traffic Control
- ATCRABSAir Traffic Control Radar Beacon System
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