Abstract: A barge-type wind turbine platform in combination with a heel tank damper includes a barge-type wind turbine platform having a keystone, two pairs of bottom beams, each including two bottom beams connected to opposite sides of the keystone, wherein the combined pairs of bottom beams define a foundation. A U-shaped ballast conduit is mounted or formed within each of the pairs of bottom beams. Each ballast conduit has ballast water therein, the ballast water extending from an outwardly extending portion of each bottom beam of each pair of bottom beams, such that a volume of air is defined between a surface of the ballast water in each outwardly extending portion and an outwardly facing wall of each outwardly extending portion, and an internal damping element is provided within each ballast conduit. A heel tank damper is defined by the ballast conduits and their respective internal damping elements.

Abstract: A head restraining system including a helmet having a chin protector formed thereon, a keeper plate overlying the shoulders, upper chest, including the sternum area, and upper back of the driver, a plurality of straps connecting the shoulder, chest and back portion of the keeper plate to aligned portions of the helmet and a pair of shoulder straps securing the keeper plate to the driver.