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  2. National Airspace System - Wikipedia

    en.wikipedia.org/wiki/National_Airspace_System

    A side view of Class B airspace resembles an upside-down wedding cake with three layers becoming bigger toward the top. Class B's layers are designed individually to meet the needs of the airport they overlay. Pilots must also receive clearance to enter the Class B airspace but Visual Flight Rules may be used, unlike in Class A airspace. Class ...

  3. Airspace - Wikipedia

    en.wikipedia.org/wiki/Airspace

    Class A airspace is generally the airspace from 18,000 feet (~3.4 miles, 5.5 km) mean sea level (MSL) up to and including flight level (FL) 600 (~11.4 miles, 18.3 km), including the airspace overlying the waters within 12 nautical miles (NM) (~13.8 miles, 22.2 km) of the coast of the 48 contiguous states and Alaska. Unless otherwise authorized ...

  4. List of Class C airports in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_Class_C_airports...

    Class C is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) air space designation. Class C airspace areas are designed to improve aviation safety by reducing the risk of mid-air collisions in the terminal area and enhance the management of air traffic operations therein. [1]

  5. List of Class B airports in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_Class_B_airports...

    Class B is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) airspace designation. Class B airspace areas are designed to improve aviation safety by reducing the risk of midair collisions in the airspace surrounding airports with high-density air traffic operations. [1]

  6. Cleveland Air Route Traffic Control Center - Wikipedia

    en.wikipedia.org/wiki/Cleveland_Air_Route...

    Cleveland Air Route Traffic Control Center (ZOB) or Cleveland Center is located at 326 East Lorain Street, Oberlin, Ohio, United States. [1] The center is located about 30 miles (48 km) outside of the city of Cleveland. [2] The Cleveland ARTCC is the 3rd busiest of the 22 Air Route Traffic Control Centers in the United States.

  7. Map shows countries that have closed their airspace to ... - AOL

    www.aol.com/news/map-shows-countries-closed...

    A sizeable chunk of the world, including most of NATO, has closed its airspace to Russian airlines. The US was the latest to block Russian flights. Map shows countries that have closed their ...

  8. 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.

  9. Sectional aeronautical chart - Wikipedia

    en.wikipedia.org/wiki/Sectional_aeronautical_chart

    The sectionals are complemented by terminal area charts (TACs) at 1:250,000 scale for the areas around major U.S. airports, and until 2016 by World Aeronautical Charts (WACs) at a scale of 1:1,000,000 for pilots of slower aircraft and aircraft at high altitude. [1] Since February 2021, the charts have been updated on a 56-day publication cycle. [2]