Aircraft mission computing system, comprising a computing engine for computing an aircraft trajectory during the mission and related process

An aircraft mission computing system, comprising a computing engine configured to compute an aircraft trajectory for a mission, the computing engine comprising:

• an initializing unit configured to initialize mission specifications of a mission, the mission specifications including at least a geographical point of origin, a geographical destination point, and operational mission specifications;
• a weather context recovery unit configured to recover a weather context in an airspace between the geographical point of origin and the geographical destination point;
• a performance determining unit configured to determine airplane performance based on the operational mission specifications and based on the weather context;
• and
• a trajectory computing unit configured to compute a mission trajectory between the geographical point of origin and the geographical destination point as a function of the airplane performance and as a function of the operational mission specifications,
• the trajectory computing unit being configured to compute at least one iso-movement curve of the aircraft from at least one point of the mission trajectory and being configured to determine at least one other point of the mission trajectory on the at least one iso-movement curve of the aircraft.