Les projets du DLR : l’aile active, l’aile flexible

The German Aerospace Center (Deutsches Zentrum für Luft-und Raumfahrt; DLR; Göttingen) has tested two flexible, actively-controlled fiber-reinforced wing designs as part of the EU FLEXOP project. 

https://www.journal-aviation.com/actualites/42785-le-dlr-teste-deux-concepts-d-aile-pour-le-projet-flexop
https://www.compositesworld.com/news/dlr-tests-flexible-and-actively-controlled-wing-designs
https://www.compositesworld.com/news/airbus-albatross-features-flapping-wings-made-from-glass-and-carbon-fiber-composites