A comprehensive System of hoisted, universally compatible, semi-elliptical mainsails and self-tacking headsails. Reducing weight on deck and aloft and fully cockpit-controlled, self-boomed System sails replace cumbersome conventional genoas and rigid booms with self-boomed, overlapping, self-tacking, semi-elliptical headsails and mainsails. Each sail assures optimum sail interface. Synergism between aerodynamic headboard-end plate combinations, integrated alternate energy, and maximum sailing efficiency optimizes convenience, safety and performance. Overlapping Maxjib (26), Non-overlapping Maxjib (28) and self-boomed Maxmain (30) are self-boomed, self-tacking hoisted sails. External-spar Maxmain (32) provides unique new System benefits for boomed mainsail configurations. Usable in various combinations, entirely new sail types assure cost savings for boat builders and users alike: Cost-effective sail power for both recreational and commercial users of wind-powered vehicles as well as new markets for boat builders and sail makers.

 
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