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.

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：US10697795B2

公开(公告)日：2020-06-30

申请号：US15894871

申请日：2018-02-12

Applicant: Bell Textron Inc.

Inventor： Erik John Oltheten ,  Aaron Thomas Halverson

IPC: G01C23/00 ,  G01S19/40 ,  G01C21/08 ,  G01C21/16 ,  B64D43/00 ,  G01C25/00 ,  G01C19/42

Abstract: A navigation system for vehicles, such as rotorcraft, includes a directional gyroscope having a magnetic heading correction mode, a nonmagnetic manual heading correction mode and a nonmagnetic automatic heading correction mode. A magnetic field sensor is operably coupled to the directional gyroscope and is operable to generate magnetic north-based signals. A heading correction input is operably coupled to the directional gyroscope and is operable to generate manual signals upon actuation thereof. A global positioning system sensor is operably coupled to the directional gyroscope and is operable to generate track-based signals. In the magnetic heading correction mode, the directional gyroscope receives the magnetic north-based signals for heading corrections. In the nonmagnetic manual heading correction mode, the directional gyroscope receives the manual signals for heading corrections. In the nonmagnetic automatic heading correction mode, the directional gyroscope periodically receives the track-based signals for heading corrections.