SYSTEME ET PROCEDE DE DETERMINATION DES PARAMETRES DE VOL ET DE LA CONSOMMATION EN CARBURANT D'AU MOINS UNE PHASE DE VOL D'UN AVION

The present invention relates to a method for determining flight parameters and fuel consumption of at least one flight phase of an aeroplane. The method according to the invention is characterised in that it comprises, for said or each flight phase, the following steps: a step (E10) of defining a plurality of implementations of said flight phase each considered as being a set of consecutive segments (Sn) having their own flight parameters (Isn) which are predetermined or determined in a random or pseudo-random manner, a step (E20) of calculating the speeds (Vn) of the segments (Sn) and the fuel consumption (CFPm) of said aeroplane for said implementation, for each implementation of said flight phase in question, on the basis of the aerodynamic characteristics (IAV) of said aeroplane and of the flight parameters (Isn) of each segment (Sn) of the implementation in question, and an optimisation step (E30) according to which only the flight parameters (lFP opt) of the segments which constitute the implementation of said flight phase for which the fuel consumption (CFP opt) is minimised as well as the speeds (Vsn opt) of the segments of said implementation and said resulting fuel consumption (CFP opt) are retained as flight parameters of the flight phase in question. The present invention also relates to a system for implementing said method.