Patent ID: 8000845

Claim:
A method of dynamically alleviating loads generated on an airplane by a disturbance due to wind, according to which method: A/ on a flight of the airplane, a monitoring is applied for detecting a disturbance due to wind, by implementing, automatically and repetitively, the following series of steps: a1) at least one incidence value is measured using at least one incidence probe which is provided at the nose of the airplane; a2) an incidence value α1 is calculated using the following expression: α1=αair−α gr −αcor in which: αair is an incidence angle which is determined from said measured incidence value; αgr represents a ground incidence at the center of gravity of the airplane; and αcor is a corrective term; and an incidence angle is determined using this incidence value α1that is subjected to a high-pass filtering; a3) this incidence angle is compared to a first predetermined value; and a4) if said incidence angle is greater than this first predetermined value, a disturbance due to wind is detected; and B/ when a disturbance due to wind is detected, the following series of steps is automatically implemented: b1) using said incidence angle deflection commands are determined for control surfaces of the airplane, which are provided on the wings of said airplane, these deflection commands being such that they generate a deflection of said control surfaces according to a particular deflection angle, and this at a maximum deflection speed; and b2) the duly determined deflection commands are applied to said control surfaces.