D.H. Shepard

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Flying electric generators (FEGs) are proposed to harness kinetic energy in the powerful, persistent high-altitude winds. Average power density can be as high as 20 kW/m<sup>2</sup> in an approximately 1000-km-wide band around latitude 30deg in both the hemispheres of the Earth. At 15 000 ft (4600 m) and above, tethered rotorcraft, with four or more rotors(More)
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