公开(公告)号：US11827349B1

公开(公告)日：2023-11-28

申请号：US18324702

申请日：2023-05-26

Applicant: ARCHER AVIATION, INC.

Inventor： Kerry Manning ,  Nathan Storrs ,  Scott Graves

IPC: B64C29/00 ,  B64D27/26 ,  B64D27/24 ,  B64C11/02

CPC classification number: B64C29/0033 ,  B64C11/02 ,  B64D27/24 ,  B64D27/26

Abstract: A VTOL aircraft includes a lift propeller configured to provide lift during takeoff, landing and hover operations. The lift propeller is configured to be stowed close to a boom surface when not in use during, e.g., cruise flight, to minimize drag around propeller surfaces. The lift propeller may be displaced vertically with respect to the boom when switching to a lift configuration to provide greater separation from the boom to improve lift efficiency and reduce unwanted vibrations. The lift propeller may have a fail-safe configuration that allows the propeller to move passively between lift and stowed configurations, and to fully rotate even when fully retracted.