Glossary

The Glossary provides definitions of popular aviation, avionics, and aeronautical terms, as well as descriptions of new and existing aircraft platforms, systems, regulations, standards, programs, and more. For company-specific information, visit the Buyers’ Guide at buyersguide.mae.pennnet.com/search/index.html.

ATM

ATM is a common aerospace and defense acronym for: air traffic management.

Avionics

Avionics is a term used to describe electronic systems employed on mannedand unmanned aircraft, satellites, and spacecraft.

DO-178

DO-178, Software Considerations in Airborne Systems and Equipment Certification, is a document published by RTCA Inc. that provides guidance for developing, testing, verifying, and ensuring the reliability and security of software intended for use in airborne environments, such as aboard aircraft.

DO-254

DO-254, Design Assurance Guidance for Airborne Electronic Hardware, is a document published by RTCA Inc. providing guidance for the development of airborne electronic hardware.

DOD

DOD is an acronym – also commonly used with a lower-case “o”, as in DoD – that stands for Department of Defense.

EUROCAE

EUROCAE is an acronym for: European Organization for Civil Aviation Equipment.

GIG

GIG is a common aerospace and defense acronym that stands for: global information grid.

RTOS

RTOS is a common acronym for: real-time operating system. RTOS has been pluralized in two ways, as RTOSs and RTOSes.

UAS

UAS is a common acronym for: unmanned aerial system. UAS is often pluralized as UASs or UASes.

UAV

UAV is a common aerospace and defense acronym for: unmanned aerial vehicle. The pluralized version of UAV is UAVs.