Hood Sails

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title="Sailopt">Sailopt</a><br> <a href = "aumet.html" title="Autometrix">Autometrix</a><br> <a href = "photoanalysis.html" title="Photographic Analysis">Photographic Analysis</a><br> <br><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0> <TR> <TD vAlign=top align=left colSpan=2> <P>Based on preliminary aerodynamic analysis performed using Sailopt, sail designers at Hood now know the theoretical mainsail and jib shapes that will provide maximum thrust when the tendency of the boat in question to heel and right are equal under various wind conditions.</P> <P>Now it's a question of designing sails that will as far as possible approximate the calculated shape when "flying".</P> <P>To perform this task in an optimum manner sail designers at all Hood lofts throughout the world use a specific sail design program known as Smsw (Sailmaker software), produced by the American company, Autometrix, Inc.<BR></P></TD> <TD vAlign=center align=middle width="30%"><A class="" href="http://www.hoodsailmakers.it/it/regata/studio_aero/images/image011.gif" target=_blank><IMG alt="" src="http://www.hoodaustralia.com.au/editimages/image011.gif" border=0></A></TD></TR> <TR> <TD colSpan=3> <P>Using Autometrix (as Smsw is commonly referred to) sail designers describe the entire rig, without overlooking even one single element, which means they can design the sail "installed" directly on the boat. This is fundamental to achieve the precise size for each sail so that it will not interfere with the boat's equipment.</P> <P>The next step is to enter the bend of the mast (fundamental for the shape of the mainsail) and tension of the stay (fundamental for the shape of the genoa).</P> <P>Once the "framework" has been established precisely the sail designer can design the sail directly in three-dimensional form, aided by the possibility to rotate or enlarge the sail, mast, etc. on screen at will.</P> <P>Checking the three-dimensional shape is achieved by defining each single profile of the sail at various heights (values for camber, twist, etc.)..</P> <P>When designing a spi or gennaker the central vertical curve must also be defined precisely as this is extremely important to check the shape of the sail in use when close hauling or on reach</P> <P>Once the sail has been designed the sail designer can make an initial simulation of how its shape changes as the various parameters for adjustment are modified, such as the foot, tension of the genoa sheet, bending of the mast, tension of the stay, etc..</P> <P>The last operation in the design process is to establish the size and layout of the panels forming the sail, selecting the best direction and optimising size bearing in mind the width of the bolt of sailcloth.</P> <P>And so panels can be laid over the three-dimensional sail virtually and then the program calculates and draws their outline on the bolt of flat sailcloth.<BR><BR>The sail is now ready to be cut.</P> <P>The sailcloth is laid out on the cutting table where a computer driven plotter-cutter cuts the panels and indicates joins and all other production features (batten and window positions, etc.).<BR></P></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR> <TR> <TD></TD> <TD></TD> <TD></TD></TR></TABLE> </body>