公开(公告)号：US20210394888A1

公开(公告)日：2021-12-23

申请号：US16907093

申请日：2020-06-19

Applicant: Textron Innovations Inc.

Inventor： George Matthew Thompson ,  Jonathan Andrew Knoll ,  Nicholas Ralph Carlson ,  Timothy Brian Carr

IPC: B64C11/28 ,  B64C27/20 ,  B64C11/00 ,  B64C11/26

Abstract: A proprotor blade for a ducted aircraft including a duct includes a main body having a distal end and a sacrificial blade tip coupled to the distal end of the main body. The sacrificial blade tip includes a deformable core material and a shell layer at least partially covering the deformable core material. The sacrificial blade tip deforms upon contact with the duct, thereby reducing damage to the ducted aircraft.