题目内容
For larger aircraft it is typical that these approaches are under the control of the flight control system with the flight crew providing a ____ role.
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This is becoming increasingly popular with "____" airlines and most manufacturers of regional jets are now offering HUDs as either standard or optional equipment.
A____ Display allows the flight crew to fly the aircraft using the guidance cues from the ILS sensors.
For both automatic and HUD landing systems, the equipment requires special approval for its design and also for each individual ____.
Radars are always used by ATC units to provide ______ to IFR flights.
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