Abstract: According to a method for representing information for guiding the flight of an aircraft, the airspace with at least one horizon and the precalculated flight path of the aircraft are three-dimensionally represented by means of an image display device and means for positioning one or several aircraft therein are provided. The aircraft symbols are merged into the representation of the airspace. Preferably, the other aircraft are each represented by a symbol corresponding to their position in the airspace and by at least one line represented in perspective from the point of view of the aircraft concerned.

Abstract: According to a process for representing information for guiding the flight of an aircraft, the airspace with at least one horizon and the precalculated flight path of the aircraft are three-dimensionally represented by means of animage display device and the surface above the horizon is subdivided into strips of different colours which extend parallel to the horizon. When the point of the precalculated flight path of the aircraft coincides with its shadow, the symbol that represents said precalculated flight path advantageously takes the position of the shadow projected on the ground. The shadow is preferably represented by a transparent design.

Abstract: In a method and an apparatus for displaying flight management information for an aircraft, a three-dimensional display of the flight space with at least one horizon and the predicted flight path of the aircraft is effected by means of an image reproduction device. The predicted flight path is preferably displayed as a series of symbols which assume, within the flight space displayed, the predicted position and the predicted altitude of the aircraft with respect to the flight space at different points in time.

Abstract: A method of operating an induction distance sensor employs a sensor having a vane or tongue of magnetic material disposed movably between two inductive coils for changing their inductances in the opposite sense upon movement of the tongue. With respect to sensor signals U.sub.s and U.sub.e, the method employs the portion U.sub.sL of U.sub.s which is in phase with the imaginary part U.sub.eL of U.sub.e. Furthermore, the value U.sub.sL measured in this way is to be further increased by U.sub.e /U.sub.eL in order to compensate for the temperature influences on the ohmic resistances. Furthermore, the errors which can be caused by erroneous controls U.sub.e1 and U.sub.e2 are also corrected. For this purpose, the total voltage is applied at intervals to a reference sensor which consists of a precision resistance divider. In this way, the exact middle point M of the total voltage U.sub.e =U.sub.e1 and U.sub.e2 can be determined by measurement, and the middle-point voltage U.sub.