navigational aid

[‚nav·ə′gā·shən·əl ′ād] (navigation) An instrument, device, chart, method, or such, intended to assist in the navigation of a craft; this expression should not be confused with “aid to navigation,” which refers only to devices external to a craft.

navigational aid (NAVAID/Navaid)

Any visual or electronic device, airborne or located on a surface, that allows the pilot to fix his position and other-wise guides him or her in navigating the aircraft in flight, while landing or in taking off. A NAVAID may be pilot interpreted or ground interpreted. On charts, NAVAID information boxes contain the NAVAID name, identifier, frequency, and Morse code. They are depicted on the charts as indicated in the illustration.

单词	navigational aid
释义	navigational aid navigational aid [‚nav·ə′gā·shən·əl ′ād] (navigation) An instrument, device, chart, method, or such, intended to assist in the navigation of a craft; this expression should not be confused with “aid to navigation,” which refers only to devices external to a craft. navigational aid (NAVAID/Navaid) Any visual or electronic device, airborne or located on a surface, that allows the pilot to fix his position and other-wise guides him or her in navigating the aircraft in flight, while landing or in taking off. A NAVAID may be pilot interpreted or ground interpreted. On charts, NAVAID information boxes contain the NAVAID name, identifier, frequency, and Morse code. They are depicted on the charts as indicated in the illustration.
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