JAXA, ONERA and DLR signed an agreement for trilateral cooperation on rotorcraft

Joint research for the next generation of rotor blades

Gemeinsame Forschung für die nächste Generation von Rotorblättern

19 June 2019

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  • Zusammenarbeit in der Hubschrauberforschung
    Cooperation in helicopter research

    Joint research for the next-generation rotor blade (from left to right): Rolf Henke, DLR Executive Board Member responsible for Aeronautics Research, Bruno Sainjon, Chairman of ONERA and Hisashi Sano, Vice President of JAXA.

  • Verlängerung der NASA/DLR%2dKooperation
    Extension of NASA/DLR cooperation

    Successful research cooperation in the field of rotor research continues from left to right): Rolf Henke, DLR Executive Board Member responsible for Aeronautics, and Dr Jaiwon Shin, NASA associate administrator for the Aeronautics Research Mission Directorate.

  • Konzeptskizze des Verbundhubschraubers RACER
    Concept sketch of the compound helicopter RACER

    Airbus Helicopters' RACER with the contributions of ONERA and DLR [2] in
    magenta/orange colours in the European Cleansky 2 project.

  • JAXAs Vorschlag für einen Verbundhubschrauber aus ihren Vorentwurfsstudien
    Artist’s impressions of compound helicopter (JAXA)

    JAXA’s proposal for a compound helicopter.

Focus: Aeronautics, helicopter

JAXA, ONERA and DLR signed an agreement for trilateral cooperation on rotorcraft on 18 June 2019 during the Paris Air Show at Le Bourget. This trilateral research agreement will investigate optimisation methods for the creation of a new generation of rotorcraft blades. This new four-year cooperation will focus on multi-objective optimisation of main rotor blades in hover and forward flight, including aerodynamic and aeroacoustic performances.

Each of the partners has many years of experience in the field of rotorcraft design. ONERA and DLR supported Airbus Helicopters in the development of the RACER compound helicopter, JAXA is pursuing a compound strategy to enlarge their range of rotorcraft. JAXA has also worked with ONERA on rotor optimisation in a previous cooperation, while another collaboration with DLR examined simulation techniques for helicopter rotors. The next logical step is to bring all three partners together to further extend their rotor optimisation expertise. 

DLR, JAXA and ONERA have been working closely together in aviation research for more than 15 years, with helicopter research being a central pillar of their joint activities. In addition, the partners cooperate in areas such as aeroelasticity, supersonic technologies and propulsion technologies for future electric aircraft.

Optical rotor measurement methods: Successful cooperation with NASA continues

At the Paris Air Show on 19 June 2019, DLR and NASA also agreed to extend the 'Experimental Optical Methods Applied to Rotorcraft' cooperation agreement, which has been in place since 2015, until the end of 2021. DLR and NASA plan to use several optical measurement methods to determine the transition point between laminar and turbulent boundary layer flow on rotor blades and to precisely characterise the vortex field geometry of a rotor in forward flight.

Last modified:
19/06/2019 19:23:21



Falk Dambowsky
German Aerospace Center (DLR)

Media Relations

Tel.: +49 2203 601-3959
Dr Klausdieter Pahlke
German Aerospace Center (DLR)

Programme Directorate Aviation, Research Area Coordinator Rotorcraft

Tel.: +49 531 295-3270
Dr. Gunther Wilke
German Aerospace Center (DLR)

Institute of Aerodynamics and Flow Technology

Tel.: +49 531 295-3339