METHOD OF DETERMINING THE HORIZONTAL PROFILE OF A FLIGHT PLAN COMPLYING WITH A PRESCRIBED VERTICAL FLIGHT PROFILE

摘要

The present invention relates to the defining, in a flight plan, of the horizontal profile of an air route with vertical flight and speed profile prescribed on departure and/or on arrival, by means of stringing together of transit points and/or turning points associated with local flight constraints and dubbed 'D-Fix' since they are not catalogued in a published navigation database, like those called "waypoints". It consists in charting, on curvilinear distance maps, a direct curvilinear path (15) joining the departure point (10) to the destination point (20) of the air route while complying with the vertical flight and speed profiles prescribed on departure and/or on arrival and while guaranteeing circumvention of the surrounding reliefs and compliance with regulated overfly zones (3), then in approximating the series of points of the direct curvilinear path (15) by a string of straight segments complying with an arbitrary threshold of maximum deviation with respect to the points of the series (15) and an arbitrary threshold of minimum lateral deviation with respect to the whole set of obstacles to be circumvented (3) and in adopting the points (151 to 154) of the intermediate junctions of the rectilinear segments as 'D-Fix' points.