Compensation of approach-flow pressure by weight shift in the sail control

摘要

Sail body with reduced or free approach-flow pressure in the sail control by weight compensation of a standing platform which is fastened in such a way as to be movable to windward, neutralises the approach-flow pressure on the sail retainer by the human weight and allows the sail retainer to be shifted by foot control when turning, and in addition is suitable for erecting the sail.