> For the complete documentation index, see [llms.txt](https://docs.smartglobe.cadac.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.smartglobe.cadac.com/smartglobe-rembrandt/acronyms-and-abbreviations.md).

# Acronyms and Abbreviations

AIRAC Aeronautical Information Regulation and Control.

ARINC 424 Aeronautical Radio, Inc. Nav Database standard

DME Distance Measuring Equipment

NM Nautical Mile

NDB Non-Directional Beacon.

TR Track

VOR VHF Omni-directional Navaid.