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  2. Uncontrolled airspace - Wikipedia

    en.wikipedia.org/wiki/Uncontrolled_airspace

    In aviation, uncontrolled airspace is airspace in which an Air Traffic Control (ATC) service is not deemed necessary or cannot be provided for practical reasons. It is the opposite of controlled airspace. It is that portion of the airspace that has not been designated as Control Area, Control Zone, Terminal Control Area or Transition Area. [1]

  3. National Airspace System - Wikipedia

    en.wikipedia.org/wiki/National_Airspace_System

    Class G airspace is uncontrolled airspace which extends from the surface to either 700 or 1,200 ft. AGL depending on the floor of the overlying Class E, or to the floor of Class A where there is no overlying Class E. In the vicinity of an uncontrolled airport, the CTAF for that airport is used for radio communication among pilots.

  4. Separation (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Separation_(aeronautics)

    Separation can also apply to terrain, obstacles, and controlled airspace, wherein an aircraft must stay at a minimum distance from a block of airspace; as an example, all aircraft must be approved by the controller who "owns" the airspace before the aircraft is approved to enter that sector. Separation at cruising altitude (aircraft passing below).

  5. Airspace - Wikipedia

    en.wikipedia.org/wiki/Airspace

    Controlled airspace is a generic term that covers the different classifications of airspace and defined dimensions within which air traffic control (ATC) service is provided in accordance with the airspace classification. Controlled airspace consists of: [14] Class A; Class B; Class C; Class D; Class E; Airspace classes in the United States

  6. Airspace class (United States) - Wikipedia

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

    Classes of airspace are mutually exclusive. Thus, airspace can be "class E" and "restricted" at the same time, but it cannot be both "class E" and "class B" at the same location and at the same time. Note: All airspace classes except class G require air traffic control (ATC) clearance for instrument flight rules (IFR) operations.

  7. Does Uncle Sam Consider Your Backyard Restricted Airspace? - AOL

    www.aol.com/news/does-uncle-sam-consider...

    The areas where you need FAA approval to fly a model plane or drone are surprisingly large.

  8. Why the airspace near Reagan Washington National Airport has ...

    www.aol.com/news/airspace-safety-reagan...

    The nation's busiest runway.An airspace cluttered with passenger planes and military aircraft. A history of near-crashes. And a growing shortage of air traffic controllers available to manage it all.

  9. 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.