Symbols shown are for the Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts. Airports/Seaplane bases shown in BLUE and GREEN have an approved Instrument Approach …

Apr 17, 2025 · The Chart Users' Guide is updated when there is new chart symbology or when there are changes in the depiction of information and/or symbols on the charts. It will be …

Sep 28, 2024 · LF/MF airways (airways based on LF/MF NAVAIDs) are sometimes referred to as colored airways because they are identified by color name and number (e.g., Amber One, …

Symbols shown are for the Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts. Airports/Seaplane bases shown in BLUE and GREEN have an approved Instrument Approach …

Feb 22, 2025 · A complete guide on how to read an IFR approach chart, including approach plates, MSA, symbols, and more.

The explanations of symbols used on Instrument Flight Rule (IFR) Enroute Charts and examples in this section are based primarily on the IFR Enroute Low Altitude Charts.

May 11, 2024 · This document serves as a reference guide for pilots interpreting the symbols used on Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts for both the …

Apr 8, 2025 · IFR low enroute charts serve instrument pilots to navigate safely along pre-defined routes. These routes are depicted through various IFR low enroute chart symbols. These …

Shadow NAVAID boxes indicate Flight Service Station (FSS) locations. Frequencies 122.2, 255.4 and emergency 121.5 and 243.0 are available at many FSSs and are not shown. All other …

All IFR radio NAVAIDs that have been flight-checked and are operational are shown on IFR enroute charts. VHF/UHF NAVAIDs (VORs, TACANs, and UHF NDBs) are shown in black, …