AIR ENVELOPE AND SHAPING ELEMENTS USED TO SHAPE SAILS

摘要

ABSTRACT OF THE DISCLOSUREThe invention provides a sail boat rig comprising anelongate sail support element, a wishbone boom associated withsaid sail support element, a sail having a tubular portion de-fined in a leading part thereof, and a plurality of sail-shapedforms fitted over said sail support element, said tubular por-tion being drawn over said sail-shaping forms to form a streamlinedair-filled bag over the leading part of the sail.