Commercial aviation in the context of "Circumnavigation"

Istanbul Airport (IATA: IST, ICAO: LTFM) is the larger of two international airports serving Istanbul, Turkey. It is located in the Arnavutköy district on the European side of the city. It is the largest airport in Turkey, the largest privately-owned airport in the world, and the second busiest airport in Europe.

All scheduled commercial passenger flights were transferred from Atatürk Airport to Istanbul Airport on 6 April 2019, following the closure of Atatürk Airport for scheduled passenger flights. The IATA airport code IST was also transferred to the new airport.

An aerodrome, airfield, or airstrip is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither, and regardless of whether it is for public or private use. Aerodromes include small general aviation airfields, large commercial airports, and military air bases.

The term airport may imply a certain stature (having satisfied certain certification criteria or regulatory requirements) that not all aerodromes have achieved. That means that all airports are aerodromes, but not all aerodromes are airports. Aerodrome and airfield are more common in Commonwealth English and rare in American English, where airport is applied almost exclusively.

An airplane (American English), or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, transportation of goods and people, military, and research. Worldwide, commercial aviation transports more than four billion passengers annually on airliners and transports more than 200 billion tonne-kilometers of cargo annually, which is less than 1% of the world's cargo movement. Most airplanes are flown by a pilot on board the aircraft, but some are designed to be remotely or computer-controlled, such as drones.

The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight". They built on the works of George Cayley , dating from 1799, when he set forth the concept of the modern airplane (and later built and flew models and successful passenger-carrying gliders) and the work of German pioneer of human aviation Otto Lilienthal, who, between 1867 and 1896, also studied heavier-than-air flight. Lilienthal's flight attempts in 1891 are seen as the beginning of human flight.Following its limited use in World War I, aircraft technology continued to develop. Airplanes had a presence in all the major battles of World War II. The first jet aircraft was the German Heinkel He 178 in 1939. The first jet airliner, the de Havilland Comet, was introduced in 1952. The Boeing 707, the first widely successful commercial jet, was in commercial service for more than 60 years, from 1958 to 2019.

The Aeronautics Research Mission Directorate (ARMD) is one of five mission directorates within NASA, the other four being the Exploration Systems Development Mission Directorate, the Space Operations Mission Directorate, the Science Mission Directorate, and the Space Technology Mission Directorate. The ARMD is responsible for NASA's aeronautical research, which benefits the commercial, military, and general aviation sectors. The current NASA associate administrator heading ARMD is Robert A. Pearce who has held the position since 2019.

ARMD is involved in the creation of the Next Generation Air Transportation System (NextGen).

Atatürk Airport (IATA: ISL, ICAO: LTBA) is a public airport located in Yeşilköy, Istanbul Province, Turkey. Formerly the primary international airport of Istanbul and the hub of Turkish Airlines, it was closed to commercial passenger flights on 6 April 2019. From that point, all commercial scheduled passenger flights were transferred to the new Istanbul Airport. Since the move of commercial operations to the new airport, Atatürk Airport is open to general aviation and functioning as an executive airport.

London Biggin Hill Airport (IATA: BQH, ICAO: EGKB) is an operational general aviation and minor commercial airport serving Biggin Hill in the London Borough of Bromley, located 12 NM (22 km; 14 mi) south-southeast of Central London. It specialises in general aviation, handling a spectrum of traffic from private aviation to large business jets. It currently has no scheduled airline service, as flights using the airport are not regularly permitted to carry fare-paying passengers.

The airport was formerly a Royal Air Force station RAF Biggin Hill, and a small enclave on the airport still retains that designation. Biggin Hill is best known for its role during the Battle of Britain in the Second World War, when it served as one of the principal fighter bases protecting London and South East England from attack by German Luftwaffe bombers. Over the course of the war, fighters based at Biggin Hill claimed 1,400 enemy aircraft, at the cost of the lives of 453 Biggin Hill based aircrew.