primary navigation display


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primary navigation display

primary navigation display
An integrated display of navigational data. Besides providing basic data such as heading, air speed, and altitude, it can provide:
i. The VOR (very high frequency omnidirectional radio-range) indications in a full-compass rose mode or partial mode for VOR radial and course deviation.
ii. The approach mode for localizer deviation, glide-slope deviation, DME (distance-measuring equipment), TCAS (traffic alert and collision avoidance system) data, and weather radar outputs.
iii. The plan mode for route indication and TCAS data.
iv. The map mode for information on the heading, waypoints, ETA (estimated time of arrival), and weather radar.
References in periodicals archive ?
Early in the "direct-to" era, with approach-certified LORAN, many installations had a safety feature that automatically kicked the primary navigation display into VLOC mode any time a localizer frequency was dialed into the primary nav radio ...
Even so, the 480 continues to be the primary navigation display, with heading changes on the EHSI used to correct the track shown on the GPS.
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