Prof Dario Floreano’s feathered drone came back into the wind tunnel after several aerodynamic sessions last year with Stefano Mintchev (his postdoc) and Matteo Di Luca (one of his apprentices).

This year, the focus was on controls. The drone was made free to roll, while an automated regulation loop allowed the drone to maintain attitude as well as make bank turns by a clever retraction of the artificial feathers at the wings extremities.