Patent ID: 8209115

Claim:
A method for providing guidance information of an aircraft (A) along a flight trajectory (TV 1 , TV 2 ), wherein: a) generating first input parameters, comprising: at least one start point (PD) corresponding to the start of a first segment (S 1 ) on said flight trajectory (TV 1 ); at least one end point (PF) corresponding to the end of this first segment (S 1 ) on said flight trajectory (TV 1 ); an arrival time corresponding to the required arrival time of the aircraft (A) at said end point (PF); and a first temporal error margin; b) on the basis of said start point (PD), of said end point (PF), of said arrival time and of said first temporal error margin, automatically: determining at least said first segment (S 1 ) which starts at said start point (PD) and finishes at said end point (PF); integrating this first segment (S 1 ) into said flight trajectory (TV 1 ) in such a way as to obtain a first modified trajectory (TM 1 ); determining a first vertical speed profile, indicating the vertical speed of said aircraft (A) exclusively along said first segment (S 1 ), which allows the aircraft (A) to arrive at said final point (PF) at said arrival time; deducing a target time for at least one waypoint (PP, PF) which is situated on said first segment (S 1 ), from said first vertical speed profile, said target time defining the time at which the aircraft (A) must pass said waypoint (PP, PF); determining a temporal tolerance relating to the compliance with said target time at said waypoint (PP, PF) at least on the basis of said first temporal error margin; and providing at least first guidance aid information comprising said first modified trajectory (TM 1 ), and, for each waypoint (PP, PF), the target time and the temporal tolerance that are associated with said waypoint.