公开(公告)号：US20200317331A1

公开(公告)日：2020-10-08

申请号：US16886000

申请日：2020-05-28

Applicant: Bell Textron Inc.

Inventor： Carlos Fenny ,  Thomas Dewey Parsons, JR. ,  Erik John Oltheten

IPC: B64C27/82 ,  B64C27/04 ,  G05D1/08

Abstract: The present invention includes an a plurality of first variable speed motors mounted on a tail boom of the helicopter; one or more fixed pitch blades attached to each of the plurality of first variable speed motors; and wherein a speed of one or more of the plurality of first variable speed motors is varied to provide an anti-torque thrust.

公开(公告)号：US20220073197A1

公开(公告)日：2022-03-10

申请号：US17511724

申请日：2021-10-27

Applicant: Bell Textron Inc.

Inventor： Carlos Fenny ,  Thomas Dewey Parsons ,  Erik John Oltheten

IPC: B64C27/82 ,  B64C27/04 ,  G05D1/08

Abstract: The present invention includes an a plurality of first variable speed motors mounted on a tail boom of the helicopter; one or more fixed pitch blades attached to each of the plurality of first variable speed motors; and wherein a speed of one or more of the plurality of first variable speed motors is varied to provide an anti-torque thrust.