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Flight instructor
A flight instructor is a qualified pilot who teaches people to fly, endorsing students for solo flights and vouching for their readiness to aviation authorities.
Flight instruments
Flight instruments, also called cockpit instrumentation, are the aircraft cockpit devices showing airspeed, altitude, attitude, and heading, allowing flight by reference to instruments alone when visual cues are absent.
Flight length
Flight length, also called stage length or haul, is the distance an aircraft travels on a single segment between two airports, typically measured as a great circle distance and categorized as short, medium, or long haul.
Flight level
A flight level (FL) is a level of constant atmospheric pressure referenced to 29.92 inches of mercury, used instead of altitude above the transition level, and expressed in hundreds of feet.
Flight management system
A flight management system (FMS) is an aircraft's onboard computer that builds a complete flight plan, combining navigation inputs to command the autopilot and autothrottle while optimizing fuel and time.
Flight number
A flight number, also called a flight code, is the identifier an airline assigns to a scheduled flight, combined with the airline's designator code, as in AA1 or LH400.
Flight nurse
A flight nurse is a registered nurse who cares for patients during air transport, a role that began in the US military during World War II.
Flight of the Intruder
Flight of the Intruder is a 1991 John Milius war film adapted from Stephen Coonts's 1986 Naval Institute Press novel, starring Danny Glover, Willem Dafoe, and Brad Johnson as A-6 Intruder crew flying an unauthorized Hanoi raid.
Flight of the Phoenix (2004 film)
Flight of the Phoenix is a 2004 American survival drama directed by John Moore, in which plane-crash survivors in the Gobi Desert build a new aircraft from the wreckage.
Flight Operational Quality Assurance
Flight Operational Quality Assurance (FOQA), known in Europe as flight data monitoring, is a voluntary safety program in which operators routinely record and analyze flight data from normal operations.
Flight planning
Flight planning is the process of determining a flight's route, fuel, altitudes, and alternate aerodromes before departure, so the aircraft can complete the operation safely.
Flight recorder
A flight recorder is a crash-protected device on aircraft that stores flight data and cockpit audio for accident investigation, combining the flight data recorder and cockpit voice recorder.
Flight Safety Foundation
The Flight Safety Foundation is an international nonprofit based in Alexandria, Virginia, founded in 1945 to give impartial, independent safety guidance to the aviation and aerospace industry.
Flight Service Station
A Flight Service Station (FSS) is an FAA air traffic facility that gives pilot briefings, processes flight plans, and aids lost aircraft, without controlling air traffic.
Flight simulation (hobby)
Flight simulation is the hobby of flying aircraft on a home computer, console, or mobile device using software such as Microsoft Flight Simulator and X-Plane, without logging license hours.
Flight simulator
A flight simulator is a device that reproduces aircraft behavior in ground and flight conditions so pilots can train, be evaluated, or conduct research without flying a real airplane.
Flight surgeon
A flight surgeon is a physician, usually a commissioned military officer, specializing in aircrew medical care and screening; despite the title, flight surgeons do not operate in flight.
Flight Surgeon Badge (United States)
The Flight Surgeon Badge is a United States military badge awarded to physicians trained in aviation medicine, issued by the Army and Air Force in three degrees.
Flight test engineer
A flight test engineer is an engineer who plans, conducts, and analyzes flight tests of aircraft, working alongside the test pilot; the role emerged in the late 1920s.
Flight training
Flight training is the structured instruction that takes a person from first lesson to a pilot certificate, combining ground school with flight lessons under ICAO-based national standards.
Flight-time limitations
Flight-time limitations are regulations that cap airline flight crew flying and duty hours and require rest between duties, to control the safety risk of crew fatigue.
FlightGear
FlightGear is a free, open-source flight simulator for Windows, macOS, and Linux, first proposed in 1996, that offers more than 400 aircraft and is used for research, pilot training, and recreation.
Flightplan
Flightplan is a 2005 American psychological thriller directed by Robert Schwentke, in which Jodie Foster plays an engineer whose young daughter vanishes on a transatlantic flight.
Flightradar24
Flightradar24, also known as Flightradar24.com, is a Swedish flight tracking service founded in 2006 in Stockholm, showing live air traffic using a global network of more than 50,000 ADS-B receivers.
Flin Flon (mine)
The Flin Flon mine is a copper-zinc volcanogenic massive sulfide deposit at Flin Flon, on the Manitoba-Saskatchewan boundary in Canada, discovered in 1914 and mined from 1930 until 2022.
Flinders Street railway station
Flinders Street railway station, opened in 1854 as Melbourne Terminus, was the first railway station in an Australian city; its 1910 domed building is a Melbourne landmark.
Flink CDC
Flink CDC (Apache Flink CDC) is an open-source streaming data integration tool built on Apache Flink, defining ETL pipelines in YAML with connectors for MySQL, PostgreSQL, Oracle, and more. Donated to the ASF in 2024; latest release 3.7.0 (October 2026) adds AI model functions.
Flint glass
Flint glass is a high-dispersion optical glass traditionally made of lead silicate, used for lenses and prisms; paired with low-dispersion crown glass, it corrects chromatic aberration in achromatic lenses.
Flintlock
The flintlock is a firearm ignition mechanism, invented in France around 1620, in which flint striking steel ignites priming powder; it was the standard gun mechanism until the nineteenth century.
Flip bucket
A flip bucket, also called a ski-jump or trajectory bucket, is a curved structure at the end of a spillway that throws high-velocity water upward as an aerated free jet.