Abstract: A method for validating a terrain database includes a step of simulating flights based on trajectory data for an aircraft, the flight simulations being speeded up, a step of determining terrain collision risks by means of a system for signalling terrain collision risks based on the speeded-up flight simulations, a step of determining the origins of terrain collision risks with a view to validating or not validating the terrain database.

Abstract: A method for enhanced three-dimensional awareness of the environment linked to the ground around an aircraft and anticipation of the potential threats of the environment is implemented by a system for enhanced 3D awareness of the environment around the aircraft comprising an electronic enhanced three-dimensional environment awareness and piloting assistance computer, an obstruction database, and a primary flight display PFD, included in a synthetic vision system SVS or derivative. The method for enhanced three-dimensional awareness of the environment and anticipation of potential environmental threats comprising: a first step of calculation of a panoramic curve of safe minimum slope as a function of the azimuth angle of vision from the aircraft in a local horizontal plane; and a second step, consecutive and executed on command, of display of the panoramic curve of safe minimum slope and of any piloting assistance information.