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Air traffic control (ATC) is a service provided by ground-based air traffic controllers (people) who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC worldwide is to prevent collisions, organise and expedite the flow of traffic in the air, and provide information and other support for pilots.
Glasgow Prestwick Airport, commonly referred to as Prestwick Airport, is an international airport serving the west of Scotland, situated one nautical mile northeast of the town of Prestwick Scotland, and 32 miles southwest of Glasgow, Scotland. It is the less busy of the two airports serving the western part of Scotland's Central Belt, after Glasgow Airport in Renfrewshire, within the Greater Glasgow conurbation. The airport serves the urban cluster surrounding Ayr, including Kilmarnock, Irvine, Ardrossan, Troon, Saltcoats, Stevenston, Kilwinning, and Prestwick itself.
NATS Holdings, formally National Air Traffic Services and commonly referred to as NATS, provides en-route air traffic control services to flights within the UK flight information regions and the Shanwick Oceanic Control Area. It also provides air traffic control services to 14 UK airports.
Gander International Airport is located in Gander, Newfoundland and Labrador, Canada, and is operated by the Gander International Airport Authority. Canadian Forces Base Gander shares the airfield but is a separate entity from the airport. The airport is sometimes referred to as the "Crossroads of the World", and is classified as an international airport by Transport Canada.
Shanwick is the air traffic control (ATC) name given to the area of international airspace which lies above the northeast part of the Atlantic Ocean.
José María Córdova International Airport is an international airport located in the city of Rionegro, 20 kilometres (12 mi) south-east of Medellín, and is the second largest airport in Colombia after El Dorado International Airport of Bogotá in terms of infrastructure and passenger service. The airport is named after José María Córdova, a Colombian army general who was a native of Ríonegro.
Lajes Field or Lajes Air Base, officially designated Air Base No. 4, is a multi-use airfield near Lajes and 15 km (9.3 mi) northeast of Angra do Heroísmo on Terceira Island in the Azores, Portugal. It is home to the Portuguese Air Force Base Aérea N º4 and Azores Air Zone Command, a United States Air Force detachment unit, and a regional air passenger terminal. Located about 3,680 km (2,290 mi) east of New York City and about 1,600 km (990 mi) west of Lisbon, Portugal; the base sits in a strategic location midway between North America and Europe in the north Atlantic Ocean.
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. Similarly, individual nations may also designate special use airspace (SUA) with further rules for reasons of national security or safety.
In aviation, a flight information region (FIR) is a specified region of airspace in which a flight information service and an alerting service (ALRS) are provided. The International Civil Aviation Organization (ICAO) delegates which country is responsible for the operational control of a given FIR. FIRs are the largest regular division of airspace in use in the world today, and have existed at least since 1947.
Mazatlán International Airport, officially Aeropuerto Internacional General Rafael Buelna, is an international airport located in Mazatlán, Sinaloa, Mexico. It serves as the primary international gateway to Mazatlán, a popular Mexican tourist destination, offering flights to and from Mexico, the United States, and Canada. The airport also facilitates various tourism-related activities, flight training, and general aviation. Owned by Grupo Aeroportuario Centro Norte (OMA), it is named after Rafael Buelna, a military figure who played a significant role in the Mexican Revolution.
Amílcar Cabral International Airport, also known as Sal International Airport, is the main international airport of Cape Verde. The airport is named after the revolutionary leader Amílcar Cabral. It is located two km west-southwest from Espargos on Sal Island. Sal is the main hub for the national airline, Cabo Verde Airlines; and serves as a base for carrier Cabo Verde Express. This airport was also one of NASA's locations for a facility to handle the Space Shuttle after reentering from orbit.
A flight information service (FIS) is a form of air traffic service which is available to any aircraft within a flight information region (FIR), as agreed internationally by ICAO.
In air traffic control, an area control center (ACC), also known as a center or en-route center, is a facility responsible for controlling aircraft flying in the airspace of a given flight information region (FIR) at high altitudes between airport approaches and departures. In the US, such a center is referred to as an air route traffic control center (ARTCC).
The Airports Authority of India (AAI) is a statutory body under the ownership of the Ministry of Civil Aviation, Government of India. It is responsible for creating, upgrading, maintaining, and managing civil aviation infrastructure in India. It provides Communication Navigation Surveillance/Air Traffic Management (CNS/ATM) services over the Indian airspace and adjoining oceanic areas. AAI currently manages a total of 137 airports, including 34 international airports, 10 Customs Airports, 81 domestic airports, and 23 Civil enclaves at Defense airfields. AAI also has ground installations at all airports and 25 other locations to ensure the safety of aircraft operations. AAI covers all major air routes over the Indian landmass via 29 Radar installations at 11 locations along with 700 VOR/DVOR installations co-located with Distance Measuring Equipment (DME). 52 runways are provided with Instrument landing system (ILS) installations with Night Landing Facilities at most of these airports and an Automatic Message Switching System at 15 Airports.
Air traffic control in Australia is provided by two independent organisations, one civilian and one military. The civilian provider is Airservices Australia, which controls civilian airfields and airspace. The military provider is the Royal Australian Air Force (RAAF), which controls military airfields and adjoining airspace. This includes Australian Army and Royal Australian Navy aviation bases.
The North Atlantic Tracks, officially titled the North Atlantic Organised Track System (NAT-OTS), are a structured set of transatlantic flight routes that stretch from eastern North America to western Europe across the Atlantic Ocean, within the North Atlantic airspace region. They ensure that aircraft are separated over the ocean, where there is little radar coverage. These heavily travelled routes are used by aircraft flying between North America and Europe, operating between the altitudes of 29,000 and 41,000 ft inclusive. Entrance and movement along these tracks is controlled by special oceanic control centres to maintain separation between aircraft. The primary purpose of these routes is to allow air traffic control to effectively separate the aircraft. Because of the volume of NAT traffic, allowing aircraft to choose their own co-ordinates would make the ATC task far more complex. They are aligned in such a way as to minimize any head winds and maximize tail winds impact on the aircraft. This results in much more efficiency by reducing fuel burn and flight time. To make such efficiencies possible, the routes are created twice daily to take account of the shifting of the winds aloft and the principal traffic flow, eastward in North America evening and westward twelve hours later.
Controller–pilot data link communications (CPDLC), also referred to as controller pilot data link (CPDL), is a method by which air traffic controllers can communicate with pilots over a datalink system.
Santa Maria Airport is an international airport located 5 km (3.1 mi) west northwest of the urbanized area of Vila do Porto on the island of Santa Maria, in the Portuguese autonomous region of the Azores. A principal hub in transatlantic travel until the end of the 20th century, it was constructed at the start of the Second World War to protect convoys by American troops who were ceded authority until its end. From this period on, the airfield took on a commercial role, reinforced by inter-island travel and connections to Europe, resulting in its obtaining the communication duties for the North Atlantic sector of the airspace corridor.
Viasa Flight 897 was an international scheduled Rome–Madrid–Lisbon–Santa Maria–Caracas passenger service that crashed into the Atlantic Ocean off the coast of Portugal on 30 May 1961, shortly after takeoff from Portela Airport. There were no survivors among the 61 occupants of the aircraft.
Aviation in the Azores is part of the greater history of aviation in Portugal, and involves the historical use of the archipelago of the Azores by North American, South American and European pioneers of aviation. The Azores is strategically located in the centre of the North Atlantic Ocean between the continents of North America and Europe, and has played a historical role in trans-Atlantic navigation. The three primary airfields of the Azores are:
References
- ↑ "Oceanic Communications Station". www.nav.pt. Retrieved 2021-01-14.