| 摘要 |
The invention relates to a method and an associated device making it possible to avoid guidance command input errors by the crew. Since the course and the radial are linked by different relationships depending on whether the aircraft is approaching or moving away from a point, the procedures from air traffic control may be given either in course or in radial, and since the FMS system can also require the input of one of the two values, the number of possible different combination creates a situation of ambiguity that is prejudicial to the safety of the flight. To resolve this problem, the invention proposes a systematic display in text mode and/or in graphic mode of the input datum (course or radial) and of the other for verification by the crew.
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