Sail board comprises foot loops, and additional fins which have an aerodynamic pointed nose shape which extends over the outer contour of the board.
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Fin for sailing board, with sawtooth form projections on leading edge
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Sailboard sail of mast and batten rig cuts sail as reversed gaff so bottom edge points downward assisted by cord-pulled batten to form stiffened aerodynamic leading edge.
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Sail for sailboat or windsurfer with improved aerodynamics
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Sail and mast with curved upper section for e.g. sailboards