公开(公告)号：US11254424B2

公开(公告)日：2022-02-22

申请号：US16587967

申请日：2019-09-30

Applicant: Textron Innovations Inc.

Inventor： Tyler Wayne Baldwin ,  Jared Mark Paulson ,  Colin John Thomas ,  Paul Branson Sherrill ,  Bryan Huber

IPC: B64C27/00 ,  B64C27/473 ,  F01D5/02

Abstract: A balance weight assembly for a rotor blade of a rotorcraft. The balance weight assembly includes a balance weight pocket formed by a balance weight tray and a cover. The balance weight tray has an upper surface including a lip region extending outwardly from a projected region with an outboard boss. A balance weight receiving cavity is recessed from the upper surface and contains a plurality of balance weights. The projected region is disposed within an opening in a hollow blade spar such that the outboard boss of the balance weight tray has a contact relationship with an outboard surface of the opening. The cover is coupled to the balance weight tray such that the lip region of the balance weight tray and at least a portion of the cover have a clamping relationship with the blade spar, thereby coupling the balance weight pocket to the blade spar.