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  2. Washington, D.C., Special Flight Rules Area - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.,_Special...

    Within the ADIZ is an even more sensitive zone designated the Washington, D.C. Metropolitan Area Flight Restricted Zone (DC FRZ). The DC FRZ extends approximately 13–15 nmi (15–17 mi; 24–28 km) around the DCA VOR/DME. Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights.

  3. Special use airspace - Wikipedia

    en.wikipedia.org/wiki/Special_use_airspace

    The area may expand or shrink based on activities on the surface Restricted Area: Denote the existence of unusual, often invisible, hazards to aircraft such as artillery firing, aerial gunnery, or guided missiles: Require clearance from the controlling agency: R-4808N surrounding Area 51: Name starts with "R-" and delineated with : Warning Area

  4. Airspace class (United States) - Wikipedia

    en.wikipedia.org/wiki/Airspace_class_(United_States)

    The United States airspace system's classification scheme is intended to maximize pilot flexibility within acceptable levels of risk appropriate to the type of operation and traffic density within that class of airspace – in particular to provide separation and active control in areas of dense or high-speed flight operations.

  5. Restricted airspace - Wikipedia

    en.wikipedia.org/wiki/Restricted_airspace

    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.

  6. Prohibited airspace - Wikipedia

    en.wikipedia.org/wiki/Prohibited_airspace

    Such areas are established for security or other reasons associated with the national welfare. These areas are published in the Federal Register and are depicted on aeronautical charts." Part of a terminal area chart, showing the prohibited/restricted airspace surrounding Camp David. Some prohibited airspace may be supplemented via NOTAMs.

  7. Military operations area - Wikipedia

    en.wikipedia.org/wiki/Military_operations_area

    The MOA system was established around mid-1970s after a few military-civilian aircraft midair collisions and near misses. [ 2 ] Whenever an MOA is active, nonparticipating IFR traffic may be cleared through the area provided ATC can ensure IFR separation; otherwise, ATC will reroute or restrict nonparticipating IFR traffic.

  8. Airspace class - Wikipedia

    en.wikipedia.org/wiki/Airspace_class

    The world's navigable airspace is divided into three-dimensional segments, each of which is assigned to a specific class. Most nations adhere to the classification specified by the International Civil Aviation Organization (ICAO) and described below, though they might use only some of the classes defined below, and significantly alter the exact rules and requirements.

  9. Airport security - Wikipedia

    en.wikipedia.org/wiki/Airport_security

    The study emphasizes the need for enhanced sanitation practices in these areas. [15] [16] Generally people are screened through airport security into areas where the exit gates to the aircraft are located. These areas are often called "secure", "sterile" and airside. Passengers are discharged from airliners into the sterile area so that they ...

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