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From ERATO Basic Research to the Blue Edge Rotor Blade

van der Wall, Berend G. and Keßler, Christoph and Delrieux, Yves and Beaumier, Philippe and Gervais, Marc and Hirsch, Jean-Francois and Pengel, Kurt and Crozier, Pascal (2017) From ERATO Basic Research to the Blue Edge Rotor Blade. 6th ARF & Heli Japan 2017, 2017-11-07 - 2017-11-09, Kanazawa, Japan.

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In 2015, Airbus Helicopters unveiled the secrecy around its Dauphin successor and presented the all new H160 helicopter. A special feature immediately attracting attention is its unusual and revolutionary fore-aft swept main rotor blade. This design, aiming at significantly reducing the blade-vortex interaction noise signature and also reducing fast forward flight power requirements, finds its origins far back in the 1990s, when DLR and ONERA formed a joint team to acoustically optimize a rectangular reference rotor blade. Based on state-of-the-art comprehensive rotor codes and a 50-50 work share, the ERATO rotor blade design was developed, patented worldwide and tested on a rotor test rig and in the wind tunnel. Airbus Helicopters (then: Eurocopter) took up that design, optimized hover and forward flight high lift performance and prepared it for serial production, until it finally made it as the Blue EdgeTM rotor blade on the Airbus Helicopters H160 helicopter. The paper covers the history and technical achievements, wind tunnel test results and flight tests.

Item URL in elib:https://elib.dlr.de/114771/
Document Type:Conference or Workshop Item (Speech)
Title:From ERATO Basic Research to the Blue Edge Rotor Blade
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
van der Wall, Berend G.UNSPECIFIEDhttps://orcid.org/0000-0001-6144-0921UNSPECIFIED
Gervais, Marcairbus helicoptersUNSPECIFIEDUNSPECIFIED
Hirsch, Jean-Francoisairbus helicoptersUNSPECIFIEDUNSPECIFIED
Date:November 2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-19
Keywords:ERATO, Blue Edge, rotor noise, noise reduction, rotor blade design, wind tunnel test, flight test
Event Title:6th ARF & Heli Japan 2017
Event Location:Kanazawa, Japan
Event Type:international Conference
Event Start Date:7 November 2017
Event End Date:9 November 2017
Organizer:Japan Helicopter Society
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 (old)
Location: Braunschweig , other
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
German-Dutch Windtunnels
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:21 Nov 2017 10:56
Last Modified:24 Apr 2024 20:19

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