Patent ID: 8014910

Claim:
An assisted take-off method for an aircraft comprising a trimmable horizontal stabilizer onto which are articulated elevators, the method comprising: predetermining: a value VR of the speed of the aircraft, called the rotation speed, at which must begin the take-off rotation at the end of the acceleration phase during which said aircraft is running on the ground whilst accelerating, and a regulation range of speed values within which must be said rotation speed VR; and applying a take-off assistance pitch command to said aircraft deflecting said trimmable horizontal stabilizer by an angle of predetermined value, wherein: selecting arbitrarily, prior to said acceleration phase, within said regulation range of speed values, a reference speed VRref, lower than said rotation speed VR, and determining, for that reference speed VRef, said predetermined value of a deflection angle of said trimmable horizontal stabilizer at least as a function of the longitudinal position of a center of gravity of said aircraft on take-off; and during said acceleration phase: measuring the speed VC of said aircraft; determining continuously the variable deviation existing between said measured speed VC and said reference speed Vrref; and carrying out a variable correction of said take-off assistance pitch command according to said speed deviation.