A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Questions about the different choices that aircraft designers (typically aerospace engineers) make in order to create an aircraft.
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FAA regulations cover the aviation rules of the United States of America and its territories. This tag should be used for questions regarding requirements or limitations imposed by FAA regulations or…
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the study of how air moves and interacts with solid objects. It is an essential part of aircraft design.
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Safety includes all aspects of protecting aircraft, passengers and crew from accidents, mistakes and other potentially dangerous situations.
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a service of ground-based controllers that directs and coordinates aircraft to improve safety and efficiency.
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Engines which propel aircraft via "jet propulsion", i.e. by expelling high-velocity gasses (usually primarily air) through propelling nozzles.
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Aircraft performance covers areas such as the amount of runway required to takeoff or land and how fast an airplane can climb or descend.
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For questions relating to military aviation or possible effects of a country's military on other forms of aviation.
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the final phase of flight, when an aircraft touches down on the runway or other surface.
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a large, commercial aircraft operated by an airline for transporting people and/or cargo.
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the part of civil aviation, whether general aviation, non-scheduled service, or scheduled airline service, that involves operating aircraft for hire to transport passengers or c…
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The structures extending from the sides of the plane that generate most of the lift to keep the plane in the air.
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Refers to questions asking about airline practices, procedures, and processes both in the employment arena and in flight.
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a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally.…
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control an aircraft's movements in roll, pitch, and yaw.
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Questions about the aviation aspects of airports. Questions focused on the passenger aspects should be asked at Travel.SE.
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Flight training includes all aspects of training and testing pilots and other crew members
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General aviation (GA) includes all civil aviation activities except scheduled, commercial passenger flights. GA covers private recreational flying, corporate jet flights, flight training, crop dusting…
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Questions about aviation history, starting from kites, balloons, airplanes, helicopters and rockets.
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for questions pertaining to the maintenance of aircraft, including owner-performed maintenance and required inspections (annual, 100-hour, etc.)
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The essential systems found on most aircraft, including power plants, fuel systems, electrical systems, and flight instruments.
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the first phase of flight, when an aircraft lifts off from the runway or other surface.
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a set of regulations governing aircraft operations. IFR permits flying and navigating by instruments alone in conditions where there is no visual reference outside th…
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any situation that threatens the safety of an aircraft, the people on board it, or people on the ground.
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airfoils which convert rotary motion from a piston or turbine engine into thrust suitable for propelling an aircraft.
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the process of planning and controlling travel from one location to another. There are many methods of navigation using different techniques and instruments.
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for questions which are specific to the United States, but not regulatory in nature. For questions about aviation regulations in the US, use the faa-regulations tag.
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the primary way that pilots communicate with air traffic control and with other aircraft.
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A short- to medium-range twinjet narrow-body airliner, originally introduced in 1968. With over 10,500 aircraft delivered and over 4500 on order, the Boeing 737 is the most popular commercial jetlin…
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For questions seeking to identify an aircraft, e.g. by description or photograph.
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Weather means the atmospheric conditions, including wind, temperature and precipitation, in a specific area at a specific time.
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For general questions related to aircraft engines; use the [jet-engine] or [piston-engine] tag if possible.
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applied electronics to aviation. Radars, radios, instruments, dashboards, they all belong to this category.
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For questions about words, phrases and definitions that are specific to aviation or used in a different way in aviation.
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a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft" (ICAO definition).
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a series of twin-engine, single-aisle passenger jets produced from 1986-present. Different versions can typically carry from 107 to 220 passengers.