Balanced lug sail design software

That crease on a balance lug sail really simple sails. Just like the prosail headsailmainsail software, with the spinnaker software you specify a 3d mould and desired panel layout and the software will generate the 2d panel shaping required to wrap around that 3d mould. You can see the curve in the leach back edge of the sail that is twist. On the beach your downhaul is already way too loose. I also like the classic look of a balanced lugrigged yawl. 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. This means that the sail is more balanced, hence the name. Sail design with sailpack is basically a three layer process. This is on a very quiet day, but it worked very well in demanding conditions too. The balanced lug is similar to the standing lug, except that it has a boom. The dutch rig is superb in its standing rigging simplicity, which in itself produces less. The dipping lug eliminates the bad tack of the other two lug sails by.

In its traditional sense, a motorsailer is an uneasy compromisea displacement powerboat consigned to carting around a heavy rig and sails. Ive recently had a request from someone building their duck curious about my mast and sail setup, so i thought i could let you know my dimensions. The nice thing about the balance lug is that it controls twist without any extra gear. Part of the problem on small lugs is that the lightest cloth we can use is still proportionally rather stiff and isnt likely to stretch to shape. Shamelessly stolen setup from the big racing yachts. Matt bowser, a software engineer living in canterbury, new.

Controlling sail twist on balance and other lug rigs. It is flexible enough in its design to follow the constant demand and evolution of the sail making industry. The yard points more vertically than with the balance lug, and the sail is hoisted by an attachment about the usual one sixth of the way from the end. Their feedback is one of the key of the improvment of our software. The balanced lug is a very popular type of sail used on home built boats. This allows more of the sails leading edge to extend in front of the mast.

Donated to hunters yard in 1968, she underwent a major refit, which involved changing to a balanced lug. Basically you need a block or sheave at the mast head to take the halyard and somewhere to tie off the halyard. May 8, 2015 this pin was discovered by john gorman. Balanced lugsail rig on a multihull small trimaran design. It seems that one way forward for the modern cruising boat sail rig is not to add more complexity and cost to the sixty year old bermudan rig, but to add insight and modern materials to the over millenia evolved traditional rigs. Doug laver, gave me a nearnew sail which was surplus to his requirements. Sailcut cad is a sail design and plotting software. Sail design software free download sail design top 4. The standing lug was the working alternative to the dipping lug, for smaller boats, and its my own preference in small boat sails. This allows more of the sail s leading edge to extend in front of the mast. The leeboard should be just in front of the center thwart to balance this sail well.

Sailmakers now use computer software connected to laser cutting machines. If you wish to stray a bit off the mainstream you have to learn to just ignore these people, and in a lot of cases, ignore forums altogether. The multihull designer nigel irens with his new romily lug sail design has done it. Sail design software sailpack is an innovative sail design software that is both more productive and more accurate than any other software on the market.

And the boom extends beyond the mast, the tack being affixed back from its leading edge. In looking at the balanced lug rig, it seems to share the following advantages with the junk rig. The balanced lugsail is one of the best traditional rigs for small boats, cheap. The blue boat on the far right has balanced lug more of a moderate angle yard. In the picture the boat on the far left has a lateen sail, the one in the middle has a balanced lug that uses a high angle yard. Soft wing sails, an evolutionary leap towards sailing bliss part i the sad fact is that internet forums tend to fill up with so called experts who have strong opinions on any topic.

Balancedlug sails always have a boom, and are distinguished by a tack. Seagate sailing s delta wing sail just might be the perfect motorsailing rig. Reefing a balance lug sail the best online retailer of boat building supplies, hardware and tools undefined see more. It allows you to design and visualise your own sail and compute the accurate development of all panels in flat sheets. So in conclusion, id say that the balanced lug sail and others. Also seems like the balanced lug would be much easier to rig.

Our approach to business and software development is relatively simple. How to roll up a balanced lug sail so it can be stowed neatly. A balanced lug can be made by using the sprit as a boom, and attaching it to the foot of the sail with clips too. One fairly clear spruce 2x4 can yield spars see spar making below, an 8x10 poly tarp the sail cloth, a short length of appropriately sized pvc pipe for the clip fasteners. Reefing the balance lug, standing lug, lateen or just about anything with one piece of line.

She was originally gunter rigged with a small stuart turner engine. On the size of boats we sail a 50mm gap because of wind pressure between boom and mast is one degree of pointing angle. I like lug rigs, one of my own boats ratty is an unstayed partially balanced standing lug cat ketch. Years ago, i had a lot of trouble getting clcs lug and sprit sails made because the volume namebrand sail lofts didnt have design software that covered quadrilateral sails. It is more likely, therefore, that some type of tall, balanced lug sail may have. After abandoning my last years summer project, a folding sailboat, i came up with a boat that fits my needs much better. Constructing a polytarp balanced lug sail polysail international. Lastly there is the sheet, the location of which is usually not critical at all. The corner of the sail looks very close to the mast. Ive drawn a number of balanced chinese fully battened lug rigs and ive sailed a 54 colvin pinky with big balanced lug sails. Once a new design is ready to cut, the sail panels are nested to ensure optimum material efficiency.

Soft wing sails, an evolutionary leap towards sailing. When the wind blows onto the side of the mast where the sail is. We track over 350 data points that accurately define the enitire geometry of a sail. Risultati immagini per uv strip on square sails sail, boat setup and rig tuning. The development of the batten lug sail a thesis by. Sandy has been involved in the ongoing development of software for sail design for 20 years, and is now a member. When the wind blows onto the side of the mast where the sail is mounted, it deforms the sail over the mast. Reefing for small boats and sailing canoes is very different from the reefing for yachts. When sailing the balanced lug, the sail is left standing from tack to tack. A secondary effect is to keep the boom close to the mast. This allows a larger sail area than a standing lug without boom and therefore a better boat under sail. Sail design software free download sail design top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Design of a 100sqft balanced lug sail sailing, wooden boat plans.

This rig is totally forgiving and can be set up or taken out of the boat in a few minutes. Up until the relatively recent past much of the design of sailing yachts has been codified with fairly reliable rules of thumb 1. Balanced lug sail details and dimensions by mitch longtin. Using sailcut for sail design the principle of luff round doesnt work very well on small balanced lugs, so we generally have to get our shape through other means broadseaming and head round. Ashore norfolk broads viewing strictly by appointment through topsail. This advanced design of gunter rig see below is fully battened for better sail shape control required for higher speeds and its peak is rounded to the nearly elliptical form that more recent tests have shown to be the most efficient. We establish a close relationship with our customers. The amount of hardware fittings required for a balanced lug will depend on the size of the sail. The sail was a balance lug, and i added it to the inventory of sails i had for my old boat, thinking it would be interesting to try out, but not thinking much more about it. The plan was a nesting boat in four parts that would fit in the trunk of my car, a vw sharan. The sail and yard remain on one side of the mast and the tack of the sail is set close to the mast. Lug sail for the northeaster dory, passagemaker dinghy and skerry balanced lug rigs in high quality white, cream or tan material. We all know computer design capabilities have changed all aspects of yacht and sail design, but the process of designing a sail. Resources for setting up, tuning and handling balance and.

Beschreibung here is a video how i reef a balanced lugsail on my sooty tern. I attached the file if you like to try it yourself. No, i say, what you and the wind are looking at is a soft wing sail. Going to windward if fine so long as the rig is reasonably balanced and the centreboard profile is okay. Lug rigs for small sailboats chesapeake light craft.