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The Flapping Propulsion Rotor - Single Rotor without Tail Rotor

Geißler, Wolfgang and van der Wall, Berend G. (2012) The Flapping Propulsion Rotor - Single Rotor without Tail Rotor. 1st Asian/Australian Rotorcraft Forum, 12.-15. Feb. 2012, Busan, Korea.

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Abstract

The term “Flapping Propulsion Rotor” has first been used by H.G. Küssner in Germany in the 30ies of the last century. Based on a patent, Küssner has developed a wind tunnel model to demonstrate his concept of a rotor with a tip path plane tilted against the rotor axis. He could show experimentally that with this arrangement the reaction torque of the rotor could completely be compensated. The rotor then works without any additional device like tail rotor or second counter rotating rotor. In the present numerical investigations it will first be shown that the flapping rotor test data match sufficiently the calculations. Extending the concept (which Küssner had already proposed) to a combination of flapping and pitching blades it will be demonstrated that then the efficiency and range of applicability can be improved consid-erably.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:The Flapping Propulsion Rotor - Single Rotor without Tail Rotor
Authors:
AuthorsInstitution or Email of Authors
Geißler, Wolfgangwolfgang.geissler@dlr.de
van der Wall, Berend G.berend.vanderwall@dlr.de
Date:February 2012
Page Range:pp. 1-14
Status:Published
Keywords:Single rotor, no tail rotor, tilted tip path plane, optimized rotor efficiency
Event Title:1st Asian/Australian Rotorcraft Forum
Event Location:Busan, Korea
Event Type:international Conference
Event Dates:12.-15. Feb. 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Flight Systems > Rotorcraft
Deposited By: Dr.-Ing. Berend G. van der Wall
Deposited On:01 Mar 2012 13:26
Last Modified:01 Mar 2012 13:26

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