Method for rotating a main rotor of a rotorcraft, according to a set rotation speed with variable value

摘要

The method involves determining a value of a control setpoint (C) on a rotating speed of a main rotor (2) of a rotorcraft (1) by application of a calculation rule (7) according to a value of a parameter of surrounding air of the rotorcraft. The value of the control setpoint is transmitted to a regulation unit (5). A progressive and continuous variation of a value of an initial setpoint (NRini) is generated using the rule and calculated according to progressive and continuous variation of a value of density (D) of the air. The rotor is driven according to the transmitted control setpoint.