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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 > Airport 
precision approach path indicator (PAPI)
Aviation; Air traffic control
An approach path indicator system consisting of four light units situated on the left side of the runway (on both sides of the runway, in the case of the military) in the form of ...
rate one-half turn
Aviation; Air traffic control
The turn rate of 1.5° per second normally used by aircraft operating at approximately 250 kt or more.
special VFR flight (SVFR)
Aviation; Air traffic control
A visual flight authorized by an ATC unit to operate within a control zone (CZ) under meteorological conditions that are below visual meteorological conditions (VMC).
SSR mode
Aviation; Air traffic control
A letter or number assigned to a specific pulse spacing of the interrogation signals transmitted by an interrogator.
NAV CANADA
Aviation; Air traffic control
The corporation providing air navigation services in Canadian airspace and ATS in international airspace for which Canada has assumed responsibility.
true Mach number
Aviation; Air traffic control
A ratio of the true airspeed of an aircraft to the local speed of sound at the flight altitude.
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)