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Prohibited airspace. A prohibited airspace is an area (volume) of airspace within which flight of aircraft is not allowed, usually due to security concerns. It is one of many types of special use airspace designations and is depicted on aeronautical charts with the letter "P" followed by a serial number. It differs from restricted airspace in ...
Section of the Sectional Aeronautical Chart for Washington 90th edition, showing the restricted area R-5002 around Warren Grove, New Jersey. Restricted airspace is an area of airspace typically used by the military in which the local controlling authorities have determined that air traffic must be restricted or prohibited for safety or security concerns.
In many cases, the expanse of airspace that is class E beginning at 1,200 feet (370 m) AGL is so large that only the areas that differ are marked on the chart. Thus, one may see only external borders within the chart, with the 1,200-foot (370 m) region extending off the chart.
Areas near actual combat or other military emergencies are generally designated as restricted airspace. See Temporary Flight Restriction (TFR). A MOA is a type of special use airspace (SUA), other than restricted airspace or prohibited airspace , where military operations are of a nature that justify limitations on aircraft not participating in ...
Prohibited Area P-40 near Camp David on an aeronautical chart. All permanent SUA areas, except for controlled firing areas, are depicted on aeronautical charts, including sectional aeronautical charts, VFR terminal area charts, and applicable en-route charts, accompanied with these areas' respective the hours of operation, altitudes, and the ...
Such areas are established for security or other reasons associated with the national welfare. Prohibited areas in the United States are published in the Federal Register and are depicted on aeronautical charts. The area is charted as a "P" followed by a number (e.g., P-49). Examples of prohibited areas include Camp David and the National Mall ...
A sectional chart is a two-sided chart created from a Lambert Conformal Conic Projection [1] with two defined standard parallels. The scale is 1:500,000, with a contour interval of 500 feet. The size of each sectional is designed to be "arm's width" when completely unfolded. The "northern" half of the section is on one side of the chart, and ...
National Security Area. In United States aviation, a National Security Area ( NSA) is a designated airspace through which flight is discouraged for reasons of national security. [ 1] Flight through NSAs is not prohibited and no special advance clearance or authorization need be obtained to enter them. However, pilots of aircraft are strongly ...