Rotary wing aircraft with a shrouded tail propeller

US12037110B2 · kind B2 · utility

Assignee

• AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

• Rupert Pfaller · Riemerling, DE
• Tobias RIES · Blankenburg, DE

Key dates

• Filing date: Dec 29, 2021
• Grant date: Jul 16, 2024
• Expiry date: Mar 23, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64C2027/8254
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The present disclosure relates to a rotary wing aircraft that extends along an associated roll axis between a nose region and an aft region. The rotary wing aircraft comprises a main rotor; a shrouded duct that is arranged in the aft region and that forms an inner air duct, wherein the shrouded duct is formed to generate sideward thrust for main rotor anti-torque in forward flight condition of the rotary wing aircraft; and a propeller that is at least configured to propel the rotary wing aircraft in the forward flight condition; wherein the propeller forms a circular propeller disc in rotation around an associated rotation axis; and wherein the propeller is rotatably mounted to the shrouded duct such that the circular propeller disc is at least essentially arranged inside of the inner air duct.