Wind surfing overcomes two of the drawbacks to conventional sailing: the high cost of owning and operating a boat and the inconvenience of handling, maintaining, storing, launching, and landing. The craft, called a "Baja Board," is 15 ft long, 2 1/2 ft wide, and draws 3 in. with hull alone or 2 1/2 ft with the center board extended. A 14-ft mast carries a 56-sq-ft sail. The entire unit weighs about 70 lb. It is ridden in a standing position and is controlled by a hand-held sail assembly. Complete specifications and drawings are provided for the fastest of the six Baja Boards that have been built and tested to date. This Paper was presented at the first AIAA Technical Symposium on Sailboat design, Los Angeles, California, on April 26, 1969.