Class D Airspace is symbolized by a blue
dashed line. Class D operating less than continuous
is indicated by the following note: .
Ceilings of Class D are shown as follows: . A minus in
front of the figure is used to indicate "from surface to
but not including .... ."
Class E Surface (SFC) Airspace is symbolized
by a magenta dashed line. Class E (sfc) operating
less than continuous is indicated by the following
Class E Airspace exists at 1200' above ground level
unless designated otherwise. The lateral and vertical limits
of all Class E up to but not including 18,000' are shown by
narrow bands of vignette on Sectionals and TACs.
Controlled airspace floors of 700' above the ground are
defined by a magenta vignette;
floors other than 700' that abut uncontrolled
airspace (Class G) are defined by a blue vignette; differing
floors greater than 700' above the ground are
annotated by a symbol and a number indicating
the floor. If the ceiling is less than 18,000' MSL, the
value (prefixed by the word "ceiling") is shown along
the limits of the controlled airspace. These limits are
shown with the same symbol indicated above.
Class G Airspace within the United States extends
up to 14,500' MSL. At and above this altitude is
Class E, excluding the airspace less than 1500' above
the terrain and certain special use airspace areas.
SPECIAL USE AIRSPACE
Special use airspace confines certain flight
activities and restricts entry, or cautions other aircraft
operating within specific boundaries. Except for Controlled
Firing Areas, special use airspace areas are
depicted on visual aeronautical charts. Controlled Firing
Areas are not charted because their activities are
suspended immediately when spotter aircraft, radar,
or ground lookout positions indicate an aircraft might
be approaching the area. Nonparticipating aircraft are
not required to change their flight paths. Special use
airspace areas are shown in their entirety (within the
limits of the chart), even when they overlap, adjoin, or
when an area is designated within another area. The
areas are identified by type and identifying name or
number, positioned either within or immediately adjacent
to the area.
OTHER AIRSPACE AREAS
Mode C Required Airspace (from the surface
to 10,000' MSL) within 30 NM radius of the primary
airport(s) for which a Class B is designated, is depicted
by a solid magenta line . Mode C
is required but not depicted for operations within and
above all Class C up to 10,000' MSL. Enroute Mode
C requirements (at and above 10,000' MSL except in
airspace at and below 2500' AGL) are not depicted.
See FAR 91.215 and the AIM.
|FAR 93 Airports and heliports where
Federal Aviation Regulation (FAR 93)
special air traffic rules and airport traffic
patterns apply are shown by "boxing"
the airport name.
FAR 91 Airports where fixed wing special visual
flight rules operations are prohibited (FAR 91)
are shown with the type "NO SVFR" above the airport
National Security Areas indicated with a
broken magenta line and Special Flight
Rules Areas (SFRAs) indicated with the following
symbol: , consist of airspace with
defined vertical and lateral dimensions established at
locations where there is a requirement for increased
security and safety of ground facilities. Pilots are
requested to voluntarily avoid flying through these
depicted areas. When necessary, flight may be
The Washington DC Flight Restricted Zone
(FRZ) is related to National Security. It is depicted
using the Prohibited/Restricted/Warning Area symbology
and is located within the SFRA. It
is defined as the airspace within approximately a 13
to 15 NM radius of the KDCA VOR-DME. Additional
requirements are levied upon operators requesting
access to operate inside the National Capital Region.