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ATR 52
The ATR 52 was a 1990s project by the French-Italian manufacturer ATR for a 50-seat airliner and military transport, abandoned for lack of customer interest.
ATR 72
The ATR 72, also known as the Aérospatiale ATR-72, is a French-Italian twin-turboprop regional airliner, a stretched ATR 42 seating about 70 passengers, first flown in 1988.
Attack aircraft
Attack aircraft, also known as strike aircraft or ground-attack aircraft, are military airplanes designed primarily to strike ground targets, especially in direct support of friendly forces.
Attack helicopter
Attack helicopter (NATO designation AH): a military rotorcraft purpose-built to employ guided anti-armor, air-to-ground, or air-to-air weapons with integrated fire control. Key types: AH-1 Cobra, AH-64 Apache, Mi-28, Ka-52, Tiger, WZ-10; distinct from armed utility or scout helicopters.
Attitude indicator
The attitude indicator, also called the artificial horizon or gyro horizon, is a flight instrument showing an aircraft's pitch and bank, first produced by Sperry in 1929 for blind flying.
Auckland Airport
Auckland Airport, also known as Auckland International Airport, is New Zealand's largest airport, at Māngere about 21 km south of Auckland, and the country's primary international gateway.
August Raspet
August "Gus" Raspet (1913–1960) was an American aerodynamicist at Mississippi State whose drag reduction research carried the United States to world leadership in sailplane design.
Auguste Piccard
Auguste Piccard (Auguste Antoine Piccard) was a Swiss physicist who made one of the first manned stratosphere balloon flights in 1931 and invented the bathyscaphe.
Augusto C. Sandino International Airport
Augusto C. Sandino International Airport, also known as Managua International Airport, is the country's main international gateway and is situated 11 kilometers east of downtown Managua.
Aurel Vlaicu
Aurel Vlaicu (1882–1913) was a Romanian engineer and pioneer aviator who designed, built, and flew the first airplane constructed in Romania, crashing fatally in 1913 while attempting to cross the Carpathians.
Aurora (aircraft)
Aurora, also known as SR-91, is the name given to a rumored American hypersonic spyplane that first appeared in a 1985 Pentagon budget document and was never confirmed to exist.
Aurora, Texas, UFO incident
The Aurora, Texas, UFO incident, also called the Aurora crash, was an alleged 1897 airship crash in Aurora, Texas, now widely treated as a hoax or legend.
Austin–Bergstrom International Airport
Austin–Bergstrom International Airport, also known as Austin-Bergstrom, is the city-owned commercial airport of Austin, Texas, opened in 1999 on the site of the former Bergstrom Air Force Base about eight miles from the Texas Capitol.
Australian Transport Safety Bureau
The Australian Transport Safety Bureau (ATSB) is Australia's independent Commonwealth statutory agency investigating aviation, marine, and rail accidents, established in 1999. Its no-blame investigations aim to improve safety rather than assign blame.
Austrian Airlines
Austrian Airlines AG is Austria's largest airline, headquartered at its hub at Vienna International Airport. Founded in 1957, it has been part of the Lufthansa Group since 2009.
Austro Control
Austro Control is the Austrian air navigation service provider, a company wholly owned by the Republic of Austria that controls air traffic and performs aviation agency duties like pilot licensing.
Autogyro
An autogyro, also called a gyrocopter or gyroplane, is a rotorcraft lifted by an unpowered spinning rotor that cannot hover, first flown by Juan de la Cierva in 1923.
AutoGyro Calidus
The AutoGyro Calidus is a two-seat enclosed-cabin tandem gyroplane produced by AutoGyro GmbH of Germany, released in 2009 as the world's first formally certified factory-built gyroplane of this configuration.
AutoGyro GmbH
AutoGyro GmbH is a German gyroplane manufacturer based in Hildesheim, Lower Saxony, founded in 2003, which has delivered more than 3,200 aircraft in over 40 countries.
Autoland
Autoland (Autolanding) is an aircraft system that lands a plane without pilot control using ILS or GPS guidance, certified for low-visibility Category II and III operations.
Automatic Dependent Surveillance–Broadcast
Automatic Dependent Surveillance–Broadcast (ADS-B) is an aircraft surveillance technology in which aircraft broadcast their GPS-derived position, altitude, and speed once per second to ground stations and nearby aircraft.
Automatic Dependent Surveillance–Contract
Automatic Dependent Surveillance–Contract (ADS-C) is an aircraft surveillance technique in which aircraft automatically transmit position data to air traffic units, used mainly where radar coverage does not exist.
Automatic terminal information service
Automatic terminal information service (ATIS) is the continuous broadcast of recorded, non-control information at busy airports, giving pilots weather, runway, and approach data without occupying controller radio time.
Automation surprise
An automation surprise is an event in which cockpit automation behaves differently from what the pilot expects, usually because the pilot has lost track of the automation's mode.
Autopilot
An autopilot, also known as an automatic pilot, is a system that controls an aircraft's attitude and direction using electrical, hydraulic, or digital systems, correcting errors automatically.
Autorotation
Autorotation is an unpowered rotorcraft flight state where the main rotor turns from upward airflow as the aircraft descends, letting a helicopter glide to a landing after engine failure.
Autothrottle
An autothrottle, called autothrust on Airbus aircraft, is an aircraft system that automatically controls engine thrust to hold a target speed or thrust without continuous pilot action.
Auxiliary power unit
An auxiliary power unit (APU) is a small gas turbine, usually in an airliner's tail, that supplies power and air when the main engines are off and starts them.
AVA Airlines
AVA Airlines (Persian: هواپیمایی آوا) is a privately held Iranian passenger airline based at Tehran Mehrabad Airport. Founded in 2023, it flies domestic routes plus international services to Istanbul, Baghdad, and Kabul.
Avalon Airport
Avalon Airport (AVV), also known as Melbourne Avalon Airport, is an airport in Victoria, Australia, serving as Melbourne's second airport and hosting the Avalon Airshow.