A rotorcraft relates to a rear anti-couple rotor participating in the lift of the rotorcraft by cyclic variation of the pitch of the blades of said rotor back

摘要

The present invention relates to a rotorcraft (1) equipped with an anti-torque rear rotor (3), the orientation of the drive shaft (6) in rotation is constant and the rotor disk is mainly located laterally at a rotorcraft (1). A mechanism of action of the blades (8) of the rear rotor (3) comprises a control plate (27) rotating placed in engagement with the blades (8) and that can be maneuvered by a pair of control rods (21,22) are oriented along the drive shaft (6) of the rear rotor (3). A movement in translation of the individual control rods (21,22) together along a same path causes a variation collective pitch of the blades (8). A relative displacement in translation of the control rods (21,22) causes an inclination of the control plate (27) and consequently a variation of the pitch of the blades (8) providing a supply of lift and / or having an input of the propulsion in translation of the rotorcraft by the rear rotor (3) by pivoting of the control rods around the drive shaft (6) of the rear rotor (3).