Computer molding is a direct approach to shaping 3 dimensional. Sailcut cad is a sail design and plotting software. However in this case, it is a triangular sail hung from a very long spar on a short mast. This shade sail design software can be used on 3,4,5, and 6 sided sails. Whats the purpose of those forward raked lateen sails you. Prosail headsailmainsail our sail design software is used by 270 lofts worldwide. We believe it is the easiest to use and most productive sail design software available and integrates flawlessly with our automation process. Originally found on sailing ships, the lateen is used today in a slightly different form on small boats like the highly popular sunfish.
The flying lateen a revolutionary new sailboat rig for architects, builders, riggers or owners designing new boats or retrofitting older boats. Other traditional rigs which achieve the same effect are the spritboomed legomutton and the balanced lug. It is flexible enough in its design to follow the constant demand and evolution of the sail making industry. What are the respective advantages and disadvantages of. Nautical denoting a rig with a triangular sail lateen sail bent to a yard hoisted to the head of a low mast, used esp in the mediterranean. All of our jib sails are completely white unless you request a custom sail at additional cost. Computer molding is a direct approach to shaping 3dimensional sails. Mpanel shade designer software allows a user to design a shade structure using an easy wizard interface. Best of your three choices for speed and windward ability. Which i do regret, because i would very much like to know the answer.
It allows you to design and visualise your own sail and compute the accurate development of all panels in flat sheets. It is an unusual sail for a lateen though, with the spar nearly vertical. We have several color options for mainsails that are listed below. A lateen from french latine, meaning latin or latinrig is a triangular sail set on a long yard mounted at an angle on the mast, and running in a foreandaft direction dating back to roman navigation, the lateen became the favorite sail of the age of discovery, mainly because it allows a boat to tack against the wind. It is common in the mediterranean and the northwestern parts of the. This was mainly because it allowed a boat to tack against the wind. It is common in the mediterranean, the upper nile river, and. The drawings here give the dimensions of many small sails with the center of effort shown, to aid placing the sail on a boat properly. Lateen sail, triangular sail that was of decisive importance to medieval navigation. Its raked mast evokes visions of speed, adventure, romance and the grace and beauty that such ships bring to mind. The mainsail always has a boom, pivoted on the mast. Combined with the square sail, it produced the oceanconquering fullrigged ship.
Why did sails go from square in the ancient era to mostly. The original sail cut was a basic program developped by robert laine in 1978. It is possible to use the catalan type rig, with the lateen sail only which is changed from one side of the mast to the other when tacking. The luff could be attached to the yard at a 4550 degree angle, the leech could become the foot and the foot the leech. A sail is a tensile structuremade from fabric or other membrane materialsthat uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sailpowered land vehicles. Finally, and most importantly, the programming team at sail science australia have, since 1983, worked very closely with existing. Mast extends to 12 feet high and with a large 40 sq ft sail enjoy free, unlimited green energy now. For these reasons alone, its inven tion was an important event. Sailing boats have continued to use sails to this day for recreational sports and hobbies. Create hardchined hull by moving points with basic hydrostatic calculations. A better match of ancient tradition and modern technology would be hard to find.
The uptodate 3d design software allows getting a very high. Sailpack vision software from bsg is a free sail shape analysis tool. The design is a shallow draft, situpon hull carrying a lateen sail mounted to an. Sailpackaravanti, an advanced fsi simulation software. Campbells the lateen sail in world history a square sail catches a following wind and is dragged along by it. Sails may be made from a combination of woven materialsincluding canvas or polyester cloth, laminated membranes or bonded filamentsusually in a three or foursided shape.
Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content. It is possible to use the catalan type rig, with the lateen sail only which is. Does that mean that nobody is reading posts on this forum or have. The most widely used publically available sail design software package. The ocean going ones ones i remember from a year in bahrein in the sixties had such large spars that there was no chance of them lowering them moving the spar and sail, and rehoisting them. Instead of cutting the sail at the mastline creating the split rig, the mast itself has, in effect, been cut in half and spread apart allowing the lateen to fly freely between its legs. Tension on the downhaul prevents the end of the boom rising as the sheets are eased off the wind without the addition of extra hardware such as a boom vang.
The lateen sail is a good small boat sail because it is selfvanging. The lateen sail proved to have better upwind performance for smaller vessels. Turn any paddleboard into the hottest thing on the water. The advantages of the lateen sail are that it offers less drag, can be used effectively in lighter winds, and allows a vessel to sail much closer to the wind than a simple square sail.
Other types of foreandaft sails are the gaff rig and the bermuda rig. Initially he was able to sail only downwind, but the cretans and phoenicians made design improvements to sails that permitted sailing across and eventually against the wind. Combining ease of use with the speed of the macintosh based computers, sailmaker has brought within reach of every sail loft, the opportunity to benefit from computer aided design and manufacturing techniques without the need for a large capital investment. The original sailcut was a basic program developed by robert laine in 1978. Sailcom, a tool dedicated to salesmen for sail and rig measurements and project presentation.
Cotton sail corner patches could be made smaller because they work together better, stretch a bit and share the loads more as a group. Lateen sails article about lateen sails by the free. It is a little better sailing to windward compared to a lom, and almost as good as a lug sail off the wind. The program formed a comprehensive tourist offer based on a.
Sailpack, the most efficient sail design and production solution. Most of the current texts on the subject were written back when 36 wide dacron usually used fullwidth was the norm for fabric. Discussion in sailboats started by flathead65, apr 5, 2016. In a word, it is designed to enhance the simple beauty of sailing. Enjoy the fun and serenity that is sailing now with your paddle board. This has historically been the standard rig for those graceful nile feluccas and arab dhows. The lateen mainsail stands always on the same side of the mast.
I looked at the genoa in the illustration of the boat and thought i could use it as a lateen sail. Allegedly, the lateen sail design made it possible to sail closer into the wind. Sailpack is an innovative sail design software that is both more productive and more accurate than any other software on the market. I must admit i havent come across that particular rig before, but it is obviously a compromise between windward and downwind performance. A cotton lateen sail like the old morris and old town sails might have triangular corner patches as small as 35. A wind tunnel investigation of the aerodynamics of sailing dhows. The flying lateen has resurrected the old lateen sail by simply getting the mast out of the way.
Foreandaft sail, one of the two basic types of sailing rig, the other being the square sail. It runs in a foreandaft direction dating back to roman navigation, the lateen became the favorite sail of the age of discovery. Specify the sails overall dimensions, luff, foot, leech etc. If you order a sail by itself, it does not come with any additional hardware. This win95 platform sailmaking design software provides us with logical and consistent design. I think the top picture of the boat without a jib is exactly what i want. This is ken abrahams boat, here are the sail dimensions. The guy who put them up wrote a very interesting book on small boat rig design, and his illustrations are excellent. I have ignored roach in the drawings for the sake of simplicity, it makes very little difference in the coe. The vessel in the picture at your link has lateen sails.
Im nearing completion of the hull and am now turning my planning attention to the rig. Auckland, including designing the worlds first wind tunnel with. For a duck, this type sail has some of the best overall performance qualities. Lateen definition is being or relating to a rig used especially on the north coast of africa and characterized by a triangular sail extended by a long spar slung to a low mast. Ships and boats of all sizes have harnessed the power of wind for centuries. The ancient square sail permitted sailing only before the wind. The triangular sail was affixed to a long yard or crossbar, mounted at its middle to the top of the mast and angled to extend aft far above the mast and forward down nearly to the deck.
Lateen rigging, square rigging, mediterranean seafaring, sailing performance, technological change. Howto rig lateen sails, kayrak sailing kayak with lateen rig. Historically, it represented an important advance over the ancient square sail. We have complete control over sail shape, seam locations and concise finishing details and the software then mathematically computes the resulting panel shapes for the sail we describe. The vikings optimized the performance of the square sail, and the dutch modified the arab lateen to. The foreandaft sail, now usually triangular, is set completely aft of a mast or stay, parallel to the ships keel, and takes the wind on either side. The sunfish class of onedesign sailboats is lateenrigged. Im currently see separate thread building a bateau moonfish 14, a sunfish clone which can accept the sunfish rig and foils. The sail must have been less efficient, but it still went to windward. Sail design software free download sail design top 4.
Sunfish are pretty rare in the uk, so the option of copying an existing sail isnt available and the cost of importing one new from the usa is prohibitive so ive decided to make. The marconi rig on the laser is a far more efficient airfoil than the sunfish rig of about the same sail area. How to design a shade sail using mpanel shade designer. As the pioneer of modern computer assisted design cad for sailmaking, north sails developed the north design suite nds, the most powerful and diverse sail design tools in the industry.
Turn heads and make new friends with this unique new paddle board power source. Sailcut cad is a sail design and plotting software which allows you to design and visualise your own sail and compute the accurate development of all panels in flat sheets. A lateen sail is a type of foreandaft sail, whose default alignment is along the length of the ship. A lateen from french latine, meaning latin or latinrig is a triangular sail set on a long yard mounted at an angle on the mast. Much of what i know about practical sail design came from his book. Sailmaker sail design and production software from sail. A sail is a tensile structuremade from fabric or other membrane materialsthat uses wind. A family of 14 specialized software modules, nds delivers unprecedented power. We also take orders for custom sails for an additional cost. There are multiple tradeoffs in these types of sails, but historically many sailing ships with multiple sails have had a combination of both. Keep in mind that the total amount of broadseaming added to the sail stays pretty much the same when you change to different panel widths and more seams. The lateen is another with its sail hung, fore and aft, from a yard.
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