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Published on Jul 26, 2016
The Flying Ring is a new flying vehicle being developed at the Institute for Dynamic Systems and Control, ETH Zurich.
The video depicts the first prototype flying tethered. The annular wing (or ring) has a flat airfoil shape. Autonomous controlled flights are done to extract aerodynamic properties of the vehicle. A lift to drag ratio (a metric for aerodynamic efficiency) of 12 is achieved for the ring only. The total vehicle lift to drag ratio is lower, but can be substantially improved upon with an optimized design.
Acknowledgments This work is supported by and builds upon prior contributions by numerous collaborators in the Flying Machine Arena project. See http://www.flyingmachinearena.org/people. This research was funded in part by the National Research Council of Canada (NSERC) and the Swiss National Science Foundation (SNSF).