Patent ID: 7263939
Filing Date: 2007-09-04
Classification: B63H,B64C

Abstract:
1. A method for sailing that utilizes the power of only a wind to sail on various chosen courses including courses that are angled into the wind the method comprising: (a) providing an elevated unit comprising: (b) providing a surface unit comprising: (c) providing a flexible tension member or tether, connecting said elevated unit and said surface unit; (d) tilting said elevated unit about the longitudinal axis so that said wing generates a lateral propulsive force from the wind only, in addition to a dynamic lifting force; and (e) allowing the wind to impinge on said wing, thereby allowing said elevated unit to generate a predominately lateral force by action of the wind only, which is substantially, but not entirely, opposed by a lateral resisting force generated by said surface unit, by action of the Earth's surface, so that a propulsive force is produced, and thereby utilizing the power of only the wind to sail on a chosen course including a course that is angled into the wind.