Flying method and system using total power for an aircraft

A system for applying a flying method using total power, for an aircraft, and comprising the steps of governing the aerodynamic gradient .delta.a by reference to a desired gradient .delta.d, obtaining the desired gradient .delta.d by modulating the total gradient .delta.t by the difference between the aircraft speed B and a reference speed V.sub.2, and displaying an error signal .delta. representative of the difference between the aerodynamic gradient .delta.a and the desired gradient .delta.d, and wherein a signal representative of the total gradient .delta.t is transmitted to a first input of an adder which receives at a second input a signal corresponding to the difference between the speed V and a reference speed, the adder output being connected to a first input of a subtractor which receives at a second input, a signal corresponding to the aerodynamic graident .delta.a, the subtractor output being transmitted to a comparator which is connected to a member for controlling the pitching tendency bar of the artificial horizon, and the comparator also receiving a signal representative of a variation of stable position and a reference signal.