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Aviation
Dealing with vehicles or machines used in flight or propulsion through the air.
14Categories 89331Terms
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Aviation > Aircraft maintenance 
airfoil
Aviation; Aircraft maintenance
Any device that creates a force, or lift, based on Bernoulli’s principles or Newton’s laws, when air is caused to flow over the surface of the device.
airworthiness certificate
Aviation; Aircraft maintenance
A document required to be onboard an aircraft that indicates the aircraft conforms to type design and is in condition for safe operation.
airworthiness directive (AD)
Aviation; Aircraft maintenance
Issued by the FAA in response to deficiencies and/or unsafe conditions found in aircraft, engines, propellers, or other aircraft parts. Compliance with an AD is mandatory.
alclad aluminum
Aviation; Aircraft maintenance
Used to designate sheets that consist of an aluminum alloy core coated with a layer of pure aluminum to a depth of approximately 5½ percent on each side.
algebra
Aviation; Aircraft maintenance
The branch of mathematics that uses letters or symbols to represent numbers in formulas and equations.
area
Aviation; Aircraft maintenance
A measurement of the amount of surface inside a two-dimensional object.
arm
Aviation; Aircraft maintenance
The horizontal distance that a part of the aircraft or a piece of equipment is located from the datum.
Sub-categories
- Aeronautics (18944)
- Air traffic control (14233)
- Aircraft (22883)
- Aircraft maintenance (1634)
- Airframe (736)
- Airline (2189)
- Airplane flying (18062)
- Airplanes & equipment (4488)
- Airport (11900)
- Avionics (154)
- General aviation (1759)
- Helicopter (80)
- Jet engines (2630)
- Powerplant (618)