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  2. 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.

  3. Airspace - Wikipedia

    en.wikipedia.org/wiki/Airspace

    If the restricted area is active and has not been released to the FAA, the ATC facility issues a clearance which ensures the aircraft avoids the restricted airspace. Restricted areas are charted with an "R" followed by a number (e.g., R-4401) and are depicted on the en route chart appropriate for use at the altitude or FL being flown.

  4. Special use airspace - Wikipedia

    en.wikipedia.org/wiki/Special_use_airspace

    Special use airspace (SUA) is a type of special airspaces in the United States designated for operations of a nature such that limitations may be imposed on aircraft not participating in those operations. Often these operations are of a military nature.

  5. Prohibited airspace - Wikipedia

    en.wikipedia.org/wiki/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.

  6. The American Airlines crash occurred in some of the ... - AOL

    www.aol.com/news/american-airlines-crash...

    An American Airlines flight collided with a Black Hawk helicopter in Washington DC. The nation's capital is home to some of the most congested and highly governed airspace. Reagan National Airport ...

  7. Airspace class - Wikipedia

    en.wikipedia.org/wiki/Airspace_class

    Airspace class is a category used to divide the sky into different zones, defined by both geographical boundaries and altitude levels. The International Civil Aviation Organization (ICAO) provides standardized airspace classifications that most countries follow.

  8. Plane violating airspace over Wilmington escorted to ground ...

    www.aol.com/plane-violating-airspace-over...

    The restricted airspace was set in place because President Joe Biden is in Delaware over the weekend. The fighter aircraft and helicopter responded to a civilian aircraft at 2:25 p.m. Saturday and ...

  9. National Security Area - Wikipedia

    en.wikipedia.org/wiki/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.