Importance

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Abstract

A shallow-draft float is configured with above-float buoyancy or below-float water lifters dimensioned to control the righting arm of the turbine as tip angle increases to 15 and then 30 degrees. The embodiment is configured for use with a floating wind turbine that has a center of mass above the water surface and is supported by relatively small floats. In an example embodiment, a buoyant structure resides above the float and provides additional flotation when submerged. In another embodiment, the structure beneath the water surface contains water that provides ballast as the float moves above the water surface. In various embodiments, structural elements that provide ballast or flotation may be stowed until needed.

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First Claim