Patent ID: 7676923

Claim:
A method of manufacturing a tail structure for a rotary wing aircraft, the structure comprising: a tubular portion or duct having two ends and including two collars or flanges extending respectively from each of said two ends; and two curved fairing side walls extending respectively around the two collars or flanges; the two side walls are made of a composite material comprising an organic matrix and reinforcement, said method comprising the steps of: uniting the curved-fairing side walls by solidifying the matrix to form a one-piece shell configured for receiving the tubular portion upon solidification, and connecting the shell to the tubular portion using the collars or flanges wherein one or two fairing side wall preforms are made, each preform having a side wall junction zone, the junction zone comprising said organic polymer matrix, and the two curved fairing side walls are united by solidifying or consolidating the matrix in the junction zone.