52.6 Abbreviations

CAR Part 1 (unless otherwise noted)

State the meaning of the following abbreviations:

ABAS; (AC91-21)

 Aircraft-Based Augmentation System

ACAS;

Airborne Collision Avoidance System:

ADF;

Automatic Direction-Finder:

ADS-B;

Automatic Dependent Surveillance - Broadcast

ADS-C; ( AIP GEN)

Automated Dependent Surveillance – Contract

AMoN; (AC91-21)

Alternative Means of Navigation

ANP; (AC91-21)

Actual Navigation Performance

APCH; ( AIP GEN)

Approach

A-RNP; (AC91-21)

Advanced Required Navigation Performance

Baro-VNAV; (AIP GEN)

Barometric Vertical Navigation

DA;

Decision Altitude

DF;

Direct Fix

DME;

Distance Measuring Equipment:

FAF; (AIP GEN)

Final Approach Fix.

FAP; (AIP GEN)

Final Approach Point.

FAS; (AC91-21)

Final Approach Segment

FD; (AC91-21)

Fault Detection, or Flight Director

FDE; (AC91-21)

Fault Detection and Exclusion

FRT; (AC91-21)

Fixed Radius Transition

GBAS; (AC91-21)

Ground-Based Augmentation System

GBNA; (AC91-21)

Ground-Based Navigation Aid

GLS; (AC91-21) 

GBAS Landing System

GNSS;

Global Navigation Satellite System:

GPS; (AC91-21)

Global Positioning System

GPWS;

Ground Proximity Warning System:

IAC; (AIP GEN)

Instrument Approach Chart.

IAF; (AIP GEN)

Initial Approach Fix.

ILS;