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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 
initial approach
Aviation; Air traffic control
Canada: Other expression for: initial approach segment (1)
inner marker (IM)
Aviation; Air traffic control
U.S.: A marker beacon used with an instrument landing system (ILS) (CAT II) precision approach located between the middle marker and the end of the ILS runway, transmitting a ...
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)