公开(公告)号：US11975817B2

公开(公告)日：2024-05-07

申请号：US17175327

申请日：2021-02-12

Applicant: Bell Textron Inc.

Inventor： John R. Wittmaak, Jr. ,  Russell C. Peters ,  Nathaniel G. Lundie

IPC: G05D1/00 ,  B64C13/16 ,  B64C29/02 ,  B64F5/60

CPC classification number: B64C13/16 ,  B64C29/02 ,  B64F5/60

Abstract: A method for reducing form drag on a tailsitter aircraft during at least one of takeoff or landing includes vertically taking off from the ground in a tailsitter orientation. The method also includes determining an actual pitch of the tail sitter aircraft in the tailsitter orientation. The method also includes determining a difference between the actual pitch and a predetermined pitch. The method also includes adjusting a heading of the tailsitter aircraft based on the difference to minimize a pitch angle to reduce the form drag on the tailsitter aircraft.

公开(公告)号：US20220258851A1

公开(公告)日：2022-08-18

申请号：US17175327

申请日：2021-02-12

Applicant: Bell Textron Inc.

Inventor： John R. Wittmaak, Jr. ,  Russell C. Peters ,  Nathaniel G. Lundie

IPC: B64C13/16 ,  B64F5/60 ,  B64C29/02

Abstract: A method for reducing form drag on a tailsitter aircraft during at least one of takeoff or landing includes vertically taking off from the ground in a tailsitter orientation. The method also includes determining an actual pitch of the tail sitter aircraft in the tailsitter orientation. The method also includes determining a difference between the actual pitch and a predetermined pitch. The method also includes adjusting a heading of the tailsitter aircraft based on the difference to minimize a pitch angle to reduce the form drag on the tailsitter aircraft.