公开(公告)号：US10858091B2

公开(公告)日：2020-12-08

申请号：US16047907

申请日：2018-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： John C. Larkin, III ,  Emery N. Ward ,  William P. Sumner ,  Ricky Jenkins ,  Brian Lafon

IPC: B64C25/52 ,  B64C25/32

Abstract: In a first aspect, there is a helicopter skid landing gear assembly including a front cross tube configured to interconnect two skid tubes; and a rear cross tube configured to interconnect two skid tubes; wherein at least one of the cross tubes comprises a monolithic metallic tube having a cross-section with a round exterior shape and an elliptical hollow portion therein. In a second aspect, there is a method for retrofitting a helicopter with a landing gear assembly; the method including providing a front cross tube and a rear cross tube, at least one of the front cross tube and the rear cross tube comprises a monolithic metallic tube having a cross-section with a substantially round exterior shape and an elliptical hollow portion therein; and connecting the front cross tube and rear cross tube to a fuselage.

公开(公告)号：US20190248479A1

公开(公告)日：2019-08-15

申请号：US15894888

申请日：2018-02-12

Applicant: Bell Helicopter Textron Inc.

Inventor： Michael R. Smith ,  John C. Larkin, III

IPC: B64C25/52 ,  B64F5/00

CPC classification number: B64C25/52 ,  B64C2025/325 ,  B64F5/00

Abstract: An aspect provides a skid landing gear assembly including a cross member disposed between a first skid tube and a second skid tube, and a tension cable member configured to be disposed in the cross member; wherein the tension cable member resists outward deflection of at least a portion of the skid landing gear assembly when a downward load is applied to the skid landing gear assembly. In other aspects, there are methods of avoiding ground resonance in a skid landing gear assembly, methods of assembling a skid landing gear assembly, methods of operating a helicopter with a skid landing gear assembly, and methods of improving the service life of a skid landing gear assembly.

公开(公告)号：US20190047687A1

公开(公告)日：2019-02-14

申请号：US16047907

申请日：2018-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： John C. Larkin, III ,  Emery N. Ward ,  William P. Sumner ,  Ricky Jenkins ,  Brian Lafon

IPC: B64C25/52

Abstract: In a first aspect, there is a helicopter skid landing gear assembly including a front cross tube configured to interconnect two skid tubes; and a rear cross tube configured to interconnect two skid tubes; wherein at least one of the cross tubes comprises a monolithic metallic tube having a cross-section with a round exterior shape and an elliptical hollow portion therein. In a second aspect, there is a method for retrofitting a helicopter with a landing gear assembly; the method including providing a front cross tube and a rear cross tube, at least one of the front cross tube and the rear cross tube comprises a monolithic metallic tube having a cross-section with a substantially round exterior shape and an elliptical hollow portion therein; and connecting the front cross tube and rear cross tube to a fuselage.