公开(公告)号：US20210354814A1

公开(公告)日：2021-11-18

申请号：US17229831

申请日：2021-04-13

Applicant: Bell Helicopter Textron Inc.

Inventor： George Matthew Thompson ,  Jonathan Andrew Knoll ,  Robert Glenn Vaughn ,  William Anthony Amante

IPC: B64C27/473

Abstract: A rotor system is provided in one example embodiment and may include a rotor duct; at least one rotor blade, wherein the at least one rotor blade comprises a tip end; and a multi-material tip extension affixed at the tip end of the at least one rotor blade, wherein the multi-material tip extension comprises an inboard portion fabricated from a first material and an outboard portion fabricated from a second material, wherein the second material is different than the first material.