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From ERATO Basic Research to the Blue Edge Rotor Blade: an Example of Virtual Engineering?

Beaumier, Philippe and van der Wall, Berend G. and Keßler, Christoph and Delrieux, Yves and Gervais, Marc and Hirsch, Jean-Francois and Pengel, Kurt and Crozier, Pascal (2016) From ERATO Basic Research to the Blue Edge Rotor Blade: an Example of Virtual Engineering? Rotorcraft Virtual Engineering Conference, 8.-10. Nov. 2016, Liverpool.

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In 2015, Airbus Helicopters unveiled the secrecy around its Dauphin successor and presented the all new H160 heli-copter. 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/107530/
Document Type:Conference or Workshop Item (Speech)
Title:From ERATO Basic Research to the Blue Edge Rotor Blade: an Example of Virtual Engineering?
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
van der Wall, Berend G.Berend.VanDerWall (at) dlr.deUNSPECIFIED
Keßler, ChristophChristoph.Kessler (at) dlr.deUNSPECIFIED
Gervais, MarcAirbus HelicoptersUNSPECIFIED
Hirsch, Jean-FrancoisAirbus HelicoptersUNSPECIFIED
Date:8 November 2016
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:Rotorcraft Virtual Engineering Conference
Event Location:Liverpool
Event Type:international Conference
Event Dates:8.-10. Nov. 2016
Organizer:Royal Aeronautical 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:22 Nov 2016 16:19
Last Modified:09 Mar 2017 15:40

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