Patent ID: 7264201

Claim:
A process for reducing the aerodynamic loads undergone by elevators of an aircraft during takeoff rotation, said aircraft comprising an adjustable horizontal tailplane to which said elevators are hinged and which is deflected by an angle of inclination of predetermined value with a view to the rotation, said process comprising: prior to deployment of said elevators for the rotation, deflecting said adjustable horizontal tailplane, in the nose-up direction, with a greater actual value (iH 2 ) of angle of inclination than a value (iH 1 ) corresponding to a customary configuration in which said elevators are in direct aerodynamic alignment with said adjustable horizontal tailplane; and deflecting said elevators in the nose-down direction, in such a way that the combination of the nose-up action of said adjustable horizontal tailplane and of the nose-down action of said elevators engenders a nose-up resultant aerodynamic force which is at least approximately equal to that (F 1 ) engendered by the assembly of said adjustable horizontal tailplane and of said elevators in said customary configuration.