Experiments today, wind speed 7 to 13 m/s in the weather station, and 5 to 10 m/s locally.
Experiments of “FlygenKitire” (kite + tire inner tube + turbine), wind speed of 5 to 10 m/s
The two-line kite is 0.5 m² in projected surface area. The weight of the 42 cm diameter torus is 0.45 kg. The experiments revealed significant instability due to the mass of the torus relative to the projected surface area of the kite, but especially to the drag exerted by the torus. After one or two seconds, the torus would flip over and destabilize the entire assembly, which would immediately fall.(PDF) Flexible kite carrying a turbine within a torus-shaped balloon. Available from: https://www.researchgate.net/publication/388800040_Flexible_kite_carrying_a_turbine_within_a_torus-shaped_balloon [accessed Nov 02 2025].
