| 摘要 |
A wind powered air/water interface craft disposed in a mechanically simple configuration(s) with means for trimming and/or adjusting the area of the various air and water foil elements either independently or together or both. All of its structural elements are useful as lifting or-driving surfaces or buoyant elements thereby minimizing parasitic drag and conflicting forces. In some configurations, free flight is also possible for brief periods of time or for longer periods in conditions where dynamic soaring is possible. The rig is able to develop vertical lift before necessarily having forward motion. Although similar in some configurations to a windsurfer, its operation is not dependent on the strength of the human operator, so that it has the capacity for power and payload greater than the strength and weight of the operator. The triangle rig configuration of the invention may develop vertical lift, but may in some instances use vertical lift only to enhance dynamic stability of a displacement craft. A wide beam single hull ship uses triangle rig sails to augment the ship's engines. |
