METHOD FOR PROTECTING THE TORQUE AND/OR THRUST OF PROPELLERS OF A HYBRID HELICOPTER AND HYBRID HELICOPTER

摘要

The present invention relates to a method of torque and / or thrust protection of each propeller of a hybrid helicopter. Said hybrid helicopter comprises a control system connected to the blades of each propeller and a thrust control configured to modify a pitch of said transmitted blades. to the control system, each propeller being driven in rotation by a mechanical transmission chain of said hybrid helicopter. Said method comprises a step of maintaining by the control system said pitch of said blades of a propeller in at least one control domain (90) relating to a thrust generated by said propeller or to a torque exerted in said mechanical transmission chain. In this way, the pitch of said blades of each propeller is maintained between a lower limit (92) and an upper limit (91) of the control range (90).