Patent ID: 8074920

Claim:
A helicopter comprising: at least one main rotor with blades situated on an airframe on which a tail rotor is additionally attached spaced apart from the airframe via a tail boom for torque equalization, the tail boom having an outer surface with a facing side that faces the main rotor blades when advancing towards the tail boom, an opposing side laterally opposed to the facing side, and a proximal portion interposed between the facing side and the opposing side and proximal to the main rotor, the outer surface having an impact zone on the facing side where an exhaust gas jet produced from the blades of the main rotor impacts the outer surface, the tail boom being provided with equalization means for the aerodynamic support of the torque equalization, said equalization means laterally attached below the impact zone on the facing side of the tail boom and spaced apart from the facing side, said equalization means having at least one auxiliary wing with an aerodynamic wing profile situated spaced apart from the surface of the tail boom via fastening struts, the at least one auxiliary wing extending laterally along the tail boom for flow acceleration of the exhaust gas jet of the main rotor passing by.