An example of a torus with an inner diameter of 5.5 m and an outer diameter of 9.625 m, a tube diameter of 2.0626 m, a surface aera of about 154 m² leading to a weight of 23.1 kg (0.15 kg/m²) without the fixations, a volume of about 79 m³ leading to a lift of 86.66 kg with helium and 94.24 kg with hydrogen, could be in aerostatic equilibrium by carrying a wind turbine with a rotor diameter of 5 m, including a generator weighing 43.1 kg and producing a continuous power of 82 kW [21] in air cooled version, at a much lower rpm than the 1400 rpm at the 145 kW peak power, the tip speed of the blade being a little over 200 m/s. The swept area is 19.625 m², the wind power could match the 82 kW of the generator [21] with a wind speed of 21 m/s (in LLJs), an air density of 1.2, and the shroud effect of the torus increasing the power by 2 times the initial power of the wind turbine. The lifter kite adds aerodynamic lift.