Radially Pumped Isotropic Kite
An isotropic membrane kite wing (think "triangular
playsail") anchored by a radial array of winches (minimum of three) can be
sustained in flight by phased tugs in zero wind. The iso membrane does not
itself rotate direction but merely changes which way is "front" as it
orbits over the center-point. To generate power the membrane shunts back &
forth crosswind, driving winches in generator mode. Earlier proposed iso
methods involved many rotating kite cells or distributed AoA actuation.
This new simpler method promises to scale even more at lower unit-energy
CoolIP ~Dave Santos 2011 M3525
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