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  2. 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

  3. 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. The classification dictates the level of control and services provided to aircraft ...

  4. ICAO airport code - Wikipedia

    en.wikipedia.org/wiki/ICAO_airport_code

    Map of the world's ICAO classifications according to the first letter of its ICAO airport code Map of countries classified with ICAO airport code prefixes and subnational regions with their respective second ICAO letter Flag of the ICAO. The ICAO airport code or location indicator is a four-letter code designating aerodromes around the

  5. National Airspace System - Wikipedia

    en.wikipedia.org/wiki/National_Airspace_System

    Pilots must also receive clearance to enter the Class B airspace but Visual Flight Rules may be used, unlike in Class A airspace. Class B airspace corresponds to the area formerly known as a Terminal Control Area or TCA. [6] Class C airspace reaches from the surface to 4,000 ft. AGL above the airport which it surrounds.

  6. Flight information region - Wikipedia

    en.wikipedia.org/wiki/Flight_information_region

    FIRs are the largest regular division of airspace in use in the world today, and have existed at least since 1947. [2] [3] Smaller countries' airspace is encompassed by a single FIR; larger countries' airspace is subdivided into a number of regional FIRs. [4] [5] Some FIRs encompass the territorial airspace of several countries. [6]

  7. Sectional aeronautical chart - Wikipedia

    en.wikipedia.org/wiki/Sectional_aeronautical_chart

    Sectional charts are in 1:500,000 scale and are named for a city on the map. The Federal Aviation Administration (FAA) in the United States publishes over 50 charts covering the continental United States, Alaska, and Hawaii. Sectional charts are published by the National Aeronautical Navigation Services Group of the FAA.

  8. Aeronautical chart - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_chart

    An aeronautical chart is a map designed to assist in the navigation of aircraft, much as nautical charts do for watercraft, or a roadmap does for drivers. Using these charts and other tools, pilots are able to determine their position, safe altitude, best route to a destination, navigation aids along the way, alternative landing areas in case of an in-flight emergency, and other useful ...

  9. Airspace class (United States) - Wikipedia

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

    Class C airspace is denoted by a heavy magenta border. Each distinct segment of class C airspace contains figures indicating the upper and lower altitude limits of that segment in units of one hundred feet, shown as a fraction, e.g., 100 over 40 indicates a ceiling of 10,000 feet (3,000 m) MSL and a floor of 4,000 feet (1,200 m) MSL.