题目内容
Some aircraft possess the ability to route ____ into the autopilot, allowing the approach to be flown automatically by the autopilot.
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The localizer provides for ILS facility ____ by periodically transmitting a 1020 Hz morse code identification signal.
The glideslope____no identification signal, so ILS equipment relies on the localizer for identification.
Hold in the ____ of the airport if required, then fly to a position from where he or she can obtain sufficient visual reference of the runway for a safe landing to be made.
The whole of the approach is defined and published in this way so that aircraft can land if they suffer from radio failure; it also allows instrument approaches to be made ____ at airports where air traffic control does not use radar or in the case of radar failure.
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