Aerospace Acronyms: F
| Acronym | Definition |
|---|---|
| FADEC | Full-Authority Digital Engine Control. |
| FAF | Final Approach Fix. |
| FAI | Fédération Aéronautique Internationale. |
| FAR | Federal Aviation Regulations (USA). |
| FARA | Formula Air Racing Association. |
| FBO | Fixed-Base Operator |
| FBW | Fly-By-Wire. |
| FBL | Fly-By-Light. |
| FCL | Flight Crew Licensing (Division) |
| FCST | Forecast. |
| FDR | Flight Data Recorder, popularly known as a `black box'. |
| Feather (of a propeller) | to set the angle of CS or VP propeller edge-on to the airflow to minimise drag and rotation following engine failure on multi-engined aircraft. |
| FIC | Flight Information Centre. |
| FIR | Flight Information Region. UK airspace is divided into two FIRs, London and Scottish. |
| FIS | Flight Information Service, providing information to air traffic in the above FIRs |
| FJ | Fast Jet. |
| FL | Flight Level. |
| Flameout | Combustion failure in a turbine engine resulting in power loss. |
| Flicker Effect | Nausea, dizziness or vertigo which can be brought on by flickering at certain frequencies of a bright light source such as sunlight or strobe when viewed through a rotating propeller or rotor blades. |
| FMS | Flight Management System. |
| FOD | Foreign Object Damage. |
| FPM | Feet Per Minute, a measure of an aircraft's rate of climb or descent. Similarly m/s or mps, meters per second. |
| FSS | Flight Service Station (USA). |
| FTO | Flying Training Organization |
