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Aeronautical Chart Users’ Guide

FAA Chart Users’ Guide Version 9 July 2026
All Library Documents

Helicopter Route Charts

Helicopter Route Chart airports, radio aids, airspace, navigation, procedure, and cultural symbols.

Special Airspace Areas

Special Flight Rules Area (SFRA) Relating

to National Security

FAA aeronautical chart visual associated with “Example: Washington DC” (source page 52).
Example: Washington DC — source page 52.
Example: Washington DC
Appropriate notes as required
may be shown.
Note: Delimiting line not shown
FAA aeronautical chart visual associated with “Washington, DC Metropolitan Area SFRA permanent-flight-restriction notice” (source page 52).
Washington, DC Metropolitan Area SFRA permanent-flight-restriction notice — source page 52.
when it coincides with International
Boundary, projection lines or other
linear features.
FAA aeronautical chart visual associated with “Appropriate notes as required” (source page 52).
Appropriate notes as required — source page 52.
Appropriate notes as required
may be shown. (Mode C see
FAR 91.215/AIM)
FAA aeronautical chart visual associated with “Class E surface-area effective-hours note and boundary” (source page 52).
Class E surface-area effective-hours note and boundary — source page 52.
FAA aeronautical chart visual associated with “FAR 91.215/AIM)” (source page 52).
FAR 91.215/AIM) — source page 52.
AIRSPACE INFORMATION Class B Airspace Ceiling of Class B in hundreds of feet MSL Floor of Class B in hundreds of feet MSL CLASS B SURFACE AREA NAVAID identi/f_ier and radial from facility NAVAID identi/f_ier and distance from facility Appropriate notes as required may be shown. (Mode C see FAR 91.215/AIM) All mileages are nautical (NM) (Floors extending “upward from above” a certain altitude are preceded by a +. Operations at and below these altitudes are outside of Class B Airspace.) All radials are magnetic. Class D Airspace (A minus in front of the figure is used to indicate “from surface to but not including...”) Altitudes in hundreds of feet MSL. Special Airspace Areas Special Flight Rules Area (SFRA) Relating to National Security Example: Washington DC Appropriate notes as required may be shown. Note: Delimiting line not shown when it coincides with International Boundary, projection lines or other linear features. Class C Airspace Ceiling of Class C in hundreds of feet MSL Floor of Class C in hundreds of feet MSL Ceiling is to but not including /f_loor of Class B Surface Appropriate notes as required may be shown. (Mode C see FAR 91.215/AIM) Class E Surface (SFC) Airspace
Source page 53