These standards include lloyd’s register, american boat standard, iso, bureau veritas, det norske veritas, germanischer lloyd and nordic boat standard. in terms of sailing vessel mast design, only the nordic boat standard (nbs) provides a method specific to sailboat mast design.. Using a wishbone boom reduces the compression on the mast & the bending of the main hull, so possibly i could make things lighter &/or sail in stronger winds than if i used a conventional boom. 2. i already had the mast & sail from a previous boat (1974 vintage) & the mast had been cut off too short to allow enough clearance for me to get under. According to gmt's marketing director ben sprague, the unusual design "offers the ability to reef on any point of sail, and it is a mainsail system that can't jam. the sail flakes itself as it's lowered into the boom cavity, and the sail cover can be zipped closed and you're done.".
The sail’s leading edge obviously aerodynamically important, but not so obvious is what’s happening at the back of the sail above the boom on the trailing edge (called the leech). a sail-maker knows that this area is either twisting or it’s not.. Sailboat mast design. the mast and boom form the supporting structure for most sails. in sailboat mast design, wood, aluminium and carbon fibre are the materials used, aluminium being the normal choice. the standard sailboat [ mast section ] is elliptical, with an integral luff groove at its trailing edge.. Unlike a preventer, which keeps the boom static, a boom brake is designed to slow the movement of the boom across the boat during a gybe by creating friction. a boom brake is a fixed set of rigging that typically starts at around $200..
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