Abstract: This invention relates to a safety system for aircraft, wherein prohibited airspaces which aircraft may not enter are marked on a digitally stored image of the airspace, wherein the aircraft is provided with an automatic control device that automatically steers the aircraft on to an alternative route, which is situated outside the prohibited airspace, when the probability that the aircraft will enter the prohibited airspace exceeds a predetermined threshold value.

Abstract: A process and system are disclosed for representing flight guiding information for an aircraft. A spatial representation of the air space with at least one horizon and the previously calculated flight path of the aircraft is represented by means of video equipment. The representation of the previously calculated flight path includes the previously calculated position and previously calculated attitude of the aircraft at different moments in time. The previously calculated flight path is represented by at least two bodies which extend along the flight path and of which at least one is represented to the left of the flight path and at least one is represented to the right of the flight path.

Abstract: In a method of detecting a collision risk and preventing air collisions, it is proposed that probabilities should be calculated for the likely presence of one's own aircraft in predetermined sectors at a number of selected times (probabilities of presence) and these probabilities for one's own aircraft and those for other objects should be used to calculate the probabilities of one's own aircraft and at least one of the other objects being present simultaneously in a given sector (probabilities of collision) for the predetermined sectors and selected times.

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.