公开(公告)号：US20210061440A1

公开(公告)日：2021-03-04

申请号：US16558071

申请日：2019-08-31

Applicant: Bell Textron Inc.

Inventor： George Ryan Decker ,  Andrew G. Baines ,  Frank Douglas Sauer

IPC: B64C5/10 ,  B64C1/26 ,  B64C5/02

Abstract: A compliant tail structure for a rotorcraft having rotating components and a fuselage. The tail structure includes a tail assembly having first and second oppositely disposed tail members. A tail joint connects the tail assembly to an aft portion of the fuselage. The tail joint includes at least four tail mounts configured to establish a nodding axis for the tail assembly. At least two of the tail mounts are resilient tail mounts that are configured to establish a nodding degree of freedom for the tail assembly relative to the fuselage about the nodding axis, thereby detuning dynamic fuselage responses from excitation frequencies generated by the rotating components.