Tuning A Fractional Rig Sailboat

EVO8/LT1 RACING SAIL RIGGING AND TUNING GUIDE. 2003 Jeanneau Sun Odyssey 32 Lift Keel. Tuning and Tips. equipment being so similar, optimising your rig is critical as it is your only differentiator. We hope you enjoy the tuning guide, and we look forward to another healthy 15 years of racing the J/35!. Rig tension seems to be one of the biggest tuning mysteries, so I try to keep it simple by using my eye and basing adjustments on the boat’s performance. Today I'll be tuning and recording measurements. "Sail Trim and Rig Tuning" by Bill Gladstone Great for Cruisers and Racers This laminated, waterproof "Captains's Quick Guide" from North Sails is designed for onboard use. The cap shrouds are led via spreaders to the boat's. Sailing an RS400 upwind in light/medium wind Posted: 04/01/2006 Sailing an RS400 upwind fast is a largely about maintaining the correct balance between power, pointing, and maintaining wind flow over the sails, as well as water flow over the foils (centreboard and rudder). Re: How tight should the standing rigging be? Hi Max Just to let you know that PBO will be having a 'standing rigging' skippers check-card in the next issue, written by a very experienced rigger, and well illustrated by the PBO art team. This is my first fractional, double spreader rig and I cannot get the tuning right. Once you are on the water there is little adjustment possible. It is important to have a correctly trimmed rig. Forestay Wire that extends from a point below the top of the mast to the bow of the boat. Each document opens as a PDF. 1 - Tuning Your Rig. Adjusting and tuning a sailboat rig will often bring benefits such as easier handling and better performance. The fractional rig had mixed results with the sailing public. Fortunately, rig tuning is a straightforward step by step process for both masthead and fractional rigs. It is assumed that PHRF crew weight limits, if any, shall apply equally to all types of boats racing in a given PHRF area, and that One Design designation only applies to the boat, rig and sails. By following my suggestions you should be able to rig your boat, tune it and set the sails so that it performs well enough for competitive racing at club level. solingonemeter. There is slight fall off from the uppers to the mast head to leeward on port tack only but I cannot tighten the upper shrouds anymore as I have run out of thread. The risk of damage or rig failure is significantly lower when you know how to take care of your rig and sails. Page 62 Rig types The Bermudan rig is the most widely used rig in the world. At the start of sailing season, a scene repeats itself with astonishing regularity. The boat, the fleets, rig tuning, specification and history Pre-owned boat listing and top tips for buyers. With an ideal crew weight between 120-170kg, it's an ideal boat for mixed crews and younger sailors. All of these are some of those you may choose from, based on characteristic and type, when considering a sailboat purchase via finance broker like boat loan Gold Coast. A quick explanation of how to tune your sailboat standing rig. To make it simple and convenient for you we have developed component packages to help set you up with your first cruising spinnaker. -Matt Engebretson. Masts are lowered into place by crane or pushed upright by beefy friends, resembling the World War II flag raising on Iwo Jima. You have no doubt noticed that all new boats come with swaged end fittings on the standing rigging. The other thing about the Musto is that we sail with a pinned rig, so you can’t change it when you’re racing. If this is a class boat (beneteau, jeanneau, etc) your local sailmakers will probably have tuning guides available. With the jib cunningham loose check that the front sail pocket moves up and down freely without any sticking. alongside “Hints and advice”, as it has an alphabetical index and illustrations of most of the components of a rig. Testing times: as the Etchells Worlds inch closer to the big event in Sydney this February, North Sails Australia has updated its tuning guide, sharing some of its hard-tested knowledge about how best to tune an Etchell rig and sail plan to win gold in this most competitive one-design field. Whether a yacht has a masthead or fractional rig, they all have common rigging features: a forestay and a backstay to support the mast longitudinally (i. She was built by X-Yachts (Denmark) and made of sandwich fiberglass / polyester with galvanized steel frame. This 3/4 rig has the smallest spinnaker of the 3, even though the mast is taller than the masthead rig. A tried and true performer built from low stretch durable hard finish 3. 6 Owner's Manual (v1. We also learned a great deal ourselves about adjusting the rig. Roger Paul will discuss basic tuning techniques whilst Warren Rock will talk about advanced tuning and the importance of understanding the concept of apparent wind, and it's impact on sail setting. Page 62 Rig types The Bermudan rig is the most widely used rig in the world. aspx New Loos Tension Gauge Pro Model # pt-2 tune your sailboat rigging How to tune a sailboat mast | the rigging company, Here are some general guidelines for tuning your mast’s standing rigging. The Sliding Gunter is a traditional rig that has always been more popular in Europe than on this side of the Atlantic, but it’s hard to find a better sailing rig for small boats. I've owned two boats with B&R rigs, and have sailed close to 20,000 nm on them. Fractional rig with in-line spreaders - deck stepped Fractional rig with swept spreaders - deck stepped In all cases, if the basic rules are applied it gives a good solid base to subsequently fine-tune to maximise boat-speed and trim. *FREE* shipping on qualifying offers. Rig Tune and Basic Set Up There are three goals to achieve in basic set up: • Centre the mast in the middle of the boat and ensure that the mast is in column athwartships • Set the correct amount of pre-bend for the conditions. Power is generated by the rig turning the wind from its original course. The required tension won't be known exactly until you go out sailing, but each shroud should be fairly snug (see Masthead Rig Tuning for Safety & Performance). 6 Installation Manual (v1. I must have bought more than a fair number because I keep giving them away to people who see and like it. 5% shorter and lighter than the Didi 26 and with the rig reduced proportionately. In these conditions, I believe the skipper skill and rig tune will prevail, i. driven AC boat; photo by Rich Matt. Whether a yacht has a masthead or fractional rig, they all have common rigging features: a forestay and a backstay to support the mast longitudinally (i. The masthead rig has larger and more headsails, and a smaller mainsail, compared to the fractional rig. Go sailing!. S ailboat rigging on a sailboat is the collection of apparatuses through which the force of the wind is transferred to the ship, in order to propel it forward. Many boats have tuning guides provided by their rig manufacturer or sailmaker - if so use those instructions for adjusting the rig; otherwise these generic instructions will help improve the set up of your boat. world 15mm verage 7mm. Would anyone like to recommend this book? I need to eventually tune a Z spar single spreader masthead rig with lowers, middles and uppers. Learn vocabulary, terms, and more with flashcards, games, and other study tools. We always sail with the jib cars right back, sailing with them forward creates a too full jib, though opinion varies on this. Tuning a rig with swept-back spreaders. Featuring over 150 lofts across the globe, innovative products and materials, and the North Sails Collection. Some of the properties of sail design was based on this rig and almost exclusively used today. Includes everything you need to convert an Intex Mariner or Seahawk II, Fishman II 500, or Sevylor Caravelle, HF280, or HF360 to an inflatable sailboat. Offering the best selection of Catalina boats to choose from. Modern hullforms can have big VMG gains by footing off slightly due to potentially significantly higher speeds through the water and reduced leeway. No backstay. It's very dependent on the boat design, the conditions you sail in, what you plan to do with. heel the boat more to keep in balanced. The schooner rig is made up of the bowsprit, fore and main mast and their sails. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics. Remember that the rigging on a monohull unloads as the boat heels and spills wind out of it’s sails. Once set, the folding arm locks down for security. world 15mm verage 7mm. Initial Rig Set Up. In addition, the mainsail and jib can be in a sail bag located F&A where their cg is located. However, nothing is set in stone and I encourage you to experiment and try things for yourself, read and research more and talk about boat set up, sail trimming and tuning with others in order to expand your knowledge and optimise the performance of your boat. There is also the mast configuration and sails that include the cutter, the cat, the yawl, the schooner, the ketch, the rig sloop, the sloop, and the fractional rig sloop. Ivar Dedekam's revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. Sail and Rig - The Tuning Guide. 1 - Tuning Your Rig The first objective in tuning a rig is to get the mast centered in the boat and standing straight. A variation on the last installment of What's in a Rig (the sloop) is the Cutter Rig. Big Daddy Baits Dayton Boat Dock TN Rig 4 Bld. Optimist Tuning Guides North Sails Quantum Sails UK Sails Ullman Sails Olimpic Sails McLaughlin Boat Works. Our comments on sail trim are written as if we were sailing onboard your boat with you. Final tuning, particularly by racers, is often performed under sail with enough wind to heel the boat 15 to 20 degrees. Skip Mattos will take you through the step-by-step instructions so your boat can handle a variety of different wind conditions. At the start of sailing season, a scene repeats itself with astonishing regularity. From these locations, we travel to work on boats all along the south coast from Cornwall to West Sussex, carrying out repairs, surveys, rig-checks and rig tuning, as well as undertaking full re-rigs. If you tieall of your Sail Ties the same length between the mast and the sail, you will keep the sail shape designed by Ullman Sails. Roll mains and jibs being careful to shake out creases. S ailboat rigging on a sailboat is the collection of apparatuses through which the force of the wind is transferred to the ship, in order to propel it forward. Spread loads appropriatley on spars, rigging and boat. Illustrated Sail & Rig Tuning: Genoa & mainsail trim, spinnaker & gennaker, rig tuning (Illustrated Nautical Manuals) [Ivar Dedekam] on Amazon. Click on the menu links to get ideas!. Let's consider the cost of a sailboat's rig. The goals in rig tuning are the following: (1) Eliminate side bend and lean, (2) Set mast rake for proper helm balance, (3) Set pre-bend to match the mainsail design, and (4) Control mast bend and headstay sag. The Solo is a relatively simple boat to set up as the rules are quite tight, and most boatspeed differences stem from the ability to "change gear" quickly when racing in variable conditions (which is most of the time). The complete guide on how to trim sails and tune rigging for all conditions to make the boat sail faster and safer. Boat GPS, Computers, Electronics, Trolling Motors, and more Featuring Rod for sale today online. Once you understand the basics, however, you’ll find that you can apply your knowledge to good effect on most types of rig. This beautifully illustrated and well-organised book shows the reader step by step, how to trim their sails and rig for maximum performance. It is obvious that the rig is a large and vital part of your yacht. Ivar Dedekam’s revolutionary approach to sail and rig tuning tackles the practical and realistic The book covers the many variations in boat, sail and rig design. Go sailing!. Ivar Dedekam's revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. They are also generally available on-line. To post to this group, send email to [email protected] Mast is in the center of the boat athwartships (side to side). Based on the world's largest boating library, this laminated Quick Guide presents 14 color panels of authoritative, concise information on sail trim and rig tuning, designed for onboard quick reference. First – you need to attach the rig to the boat: 1. Boat Parts and Accessories Store Find Replacement Boat Parts, Electronics, Navigation, Engines, Fishing Supplies, and more. Members are asked to bring their own drinks, but food will be provided. The fractional rig with roller reefing is quite good for short handed sailing, as you have a smaller Genoa and larger Mainsail, which makes short tacking and winching the Genoa easier. 29er Tuning Guide by Scott Babbage 2nd & 3rd 29er Worlds Tune up - Part 1 - Bits of string and what they do Thursday 29th Jun 2006 Clynton from Bethwaite Design asked me to write a few things on 29er tuning. Sailboat Rigging. When I'm hard on the wind in about 15kts the leeward lower shroud is very loose (movement visible) Is it due the cap shrouds not being tight enough allowing the mast to move to leeward or is it just the lower shrouds not being tight enough. Now let's set the fore and aft rake and bend. other boats of comparable size. ca or by phone at (604) 461-2547 or on the web. The book covers the many variations in boat, sail and rig design. Home: Weighing a Boat on the Trailer; Picasa Folder showing rig setup, tuning and rigging. Having achieved good tune with full sail check the rig is also okay when reefed in stronger winds. She was built by Oyster (United Kingdom) and made of GRP (glass reinforced polyester). I combined the info in this Tech Tip. The primary function of the upper shrouds is to stabilize the mast sideways. com - J/29 FR Sailboat. The position of the spreaders, higher or lower on the mast, is not critical in my opinion. color illustrations. Judy B's P-19 Rigging Notes First of all, let's review the function of each of the wires on the Potter's spreaderless fractional rig. l have been rigging the 20 since 1970 when I bought my first, "Tour Jete". Fine tune trimmed from either side of cockpit, whilst coarse leads from a ratchet block on swivel base in the centre of the boat. The stand is painted green. On a fractional rig this is the mainsail. Transverse Tune. Rig Setup Once the rig is tuned to our North Sails BASE setting (see Tuning Guide on page 7) you should be aiming to adjust the rig for the prevailing conditions each day. More bend flattens the sail and de-powers it. However there is one exception. On a racing sailboat, be it a dinghy (my area of expertise) or a keelboat (a black hole in my knowledge), our real and only goal when it comes to tuning is to keep the sails up and properly set to take best advantage of the wind. The square-top main flying from the boat's fractional rig sheets to a traveler in the cockpit sole just aft of the tiller—yes, a tiller, which looks to be tons of fun underway. In line with our expertise, we have developed a high-performance, balanced hull for maximum control and incomparable steering finesse. US Laser Two Class. In a sport boat there are three main requirements of the rig. As a result it uses less material and therefore reduces weight aloft, plus the better articulation also reduces metal fatigue and simplifies the job of tuning the rig. Trailer is registered. The lower the better. It will be noted that the maximum load is the same. We discuss this and many other fine tuning sail trim techniques in our advanced Sail. 1: Mast Rake. Z Spars UK provide tuning advice for guidance only and on the understanding that it is the owners responsabiltity to set up his rig in a secure and seamanlike fashion. Under 2 - Slow, under powered. When I started sailing my Italiko and until recently, I never encountered it, and began thinking that snap weather helm might be a characteristic of hull shape. There are other secondary areas for you to be. A beautifully, uniquely illustrated nautical guide to how to trim your sails and rig for maximum performance. This is because the shrouds act as backstay tension instead of a standard backstay. She was built by X-Yachts X-372 fractional rigging (X-Yachts) sailboat specifications and details on Boat-Specs. However, fractional rigs do not come without shortcomings… A fractional rig is more difficult to tune and often requires constant tuning to adapt to different wind conditions and sail changes. Marlow Hunter, LLC reserves the right to modify or change, without notice, any aspect of our boats including (but not limited to) any materials, specifications, equipment, special offers, promotions, and/or accessories. The following measurements are those we have found to be the fastest settings for your new North sails. Any recommendations on tensioning of the back stays? > > -- > You received this message because you are subscribed to the Google Groups Catalina355 group. The Sunfish dinghy is a single-handed, pontoon style dinghy, with an un-stayed mast and a lateen sail. Fractional rigs were introduced on race boats in order to allow more controllability of the surface of the main sail and also less drag during tacking. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2. [Sailboat tuning is a science. It is a wealth of tuning information that will make sure your sail looks good and works well. RIG TUNE There are a number of areas that must be measured and set cor-rectly when tuning the rig. The goals in rig tuning are the following: (1) Eliminate side bend and lean, (2) Set mast rake for proper helm balance, (3) Set pre-bend to match the mainsail design, and (4) Control mast bend and headstay sag. We like our boats to sail reasonably fast, and we like the helm to be light and responsive. You can also applies these tips to your freestyle sail. Sail and Rig Tuning – Ivar Dedekam E-book (ePub fixed format – click on image). Fractional rig with in-line spreaders - deck stepped Fractional rig with swept spreaders - deck stepped In all cases, if the basic rules are applied it gives a good solid base to subsequently fine-tune to maximise boat-speed and trim. The Captain's Quick Guides provide all the answers—fast. So the results were there, but tuning the average sailor into them was a perplexing and ultimately discouraging puzzle. For any sailor—except those at the very top levels—rig tuning should be a fairly simple exercise. Adjustable backstays are wonderful because they allow you to fine tune the rigging while you are sailing to achieve the most out of the wind you are in. Mais Informações Sail and rig - the tuning guide The complete guide on how to trim sails and tune rigging for all conditions to make the boat sail faster and safer. How to Tension and Tune your Standing Rigging A year ago we replaced all our standing rigging with Dynex Dux. So the results were there, but tuning the average sailor into them was a perplexing and ultimately discouraging puzzle. By contrast, on a well tuned boat, the rig bends in a controlled fashion, allowing the sails to do their best. Petersburg, FL. A bottlescrew (or turnbuckle, as we also call it) is difficult to adjust under way. Scantling of mast and rigging of sail boats: A few hints from a test case to develop improved design procedures Article (PDF Available) · January 2010 with 3,219 Reads How we measure 'reads'. (There are some articles around on the internet, but most are way too simplistic, and many contain fundamental errors. Tuning your rig is a two step process. Call us and let us know if you have some go-fast tips we haven‘t tried. As a starting point, for flat water or in very small chop, the A rig should have about 25mm of camber in the mainsail and about 30mm in the jib. (Tighten cunningham, kicker and outhaul in that order to depower. The goals in rig tuning are the following: (1) Eliminate side bend and lean, (2) Set mast rake for proper helm balance, (3) Set pre-bend to match the mainsail design, and (4) Control mast bend and headstay sag. Sail and Rig Tuning. • North Sails: US Tuning Guide (6. Our dock rig tuning service is performed whilst your yacht is moored alongside a sturdy pontoon. The term rigging consists of a group of mechanical sailing apparatus, that are attached to the sailboat's hull in order to move the boat as a whole. Check by sighting up the backside of the mast to see how straight your spar is side to side. The Sail Ties along the mast allow you to adjust the luff curve of the sail. S#: S# is a guide to probable boat performance vs. This allows the rig to be tuned under the same pressure as found while racing. Once you understand the basics, however, you'll find that you can apply your knowledge to good effect on most types of rig. For its size, cost and handling it is an amazing bang for the buck!Coming to this regatta was a last minute decision, and I had just completed a new boat and A+ Rig. Although you have a fractional rig, much backstay (and mainsail leech) tension is transmitted to the headstay. loose rigging. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics. is there an adjustment I'm not seeing on a Selden mast, 2008 Jeanneau 39i , and how much lateral movement under sail do you see in your head sail?. ca), Greg Fisher (www. Sail Trim and Rig Tuning: A Captain's Quick Guide (Captain's Quick Guides) [Bill Gladstone] on Amazon. Boat tuning in the Buccaneer is finding the optimum location for the centerboard, then adjusting mast rake to produce balanced steering. Rigging & Tuning Sailboat Rigging & Lifelines Florida Islamorada. Any person building his own small sailboat, buying a new boat, or one who already owns a boat and wants to replace or change the rig on his boat will find this book valuable. Rig Tension - Tuning Guide Most people know what their rig settings should be, but don't know the forces they are putting through the rig and the hull. Shape your sails for wind and sea conditions, correct excessive weather helm, poor pointing, sluggishness, exaggerated pitching and other faults. With "Hints and advice", we aim to share with you our practical experience. Go sailing! Set full sail to windward in smooth water in light winds (10-15 degrees heel to windward). Photo: Bigstock. A beautifully, uniquely illustrated nautical guide to how to trim your sails and rig for maximum performance. A rig that is too tight puts additional static stretch on the wire and everything it is attached to. With the jib cunningham loose check that the front sail pocket moves up and down freely without any sticking. This set-up is also competitive with the more complex rigs held up with one or more pairs of running backstays. 19 / 20 rig and similar Cap shroud This is a fractional rig with a short distance between the max 25% masthead and the forestay fitting, which is a good compro- mise between the well-tensioned forestay of the masthead Backstay rig and the fractional rig’s flexible mast and easily-reefed, max 20% efficient mainsail. People seem to think that tuning a fractional rig is very difficult. pdf: Seldén Sail hardware: 597-213-F. Locate it on the boat's center line; bilges are pumped out. That laid back atmosphere continues to the people who sail them. Achieve proper helm balance in a variety of conditions d. Find Screw In Stock Now. A well-trimmed sailing boat is not only faster it heels less, balances better and is more comfortable. Ivar Dedekam's revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. Howdy all, A new Bob Perry review of the Morris M29 has an interesting statement in it: Crawling around by yourself trying to fold a genoa is not much fun and the modern fractional rig makes a genoa obsolete anyway. In Part 1 we got the mast upright in the athwartship plane so it was not leaning over to one side or the other. Although just about every facet of sailing has been written about in great depth by many writers, rig tuning seems to be an exception. J/29 high performance sailboat- Technical specifications & dimensions- including layouts, sailplan and hull profile. In order for your MacGregor to perform to its potential, you must keep your rig (mast, shrouds, and stays) properly tuned. Adjusting and tuning a sailboat rig will often bring benefits such as easier handling and better performance. We hope you enjoy the tuning guide, and we look forward to another healthy 15 years of racing the J/35!. 5% shorter and lighter than the Didi 26 and with the rig reduced proportionately. With “Hints and advice”, we aim to share with you our practical experience. If you let the tiller go, the boat will sail in a straight line or slowly turn up into the wind). If you understand these principles, you can tune just about any mast. The boat, the fleets, rig tuning, specification and history Pre-owned boat listing and top tips for buyers. ca or by phone at (604) 461-2547 or on the web. • Have the correct headstay tension for the conditions. Included are some notes on specific sailing conditions and various boat models. This dvd covers: orientation to wire & rope properties; Brion's famous bungy rig demo; dockside tuning cruising yachts; 3 methods of rig tension; the Toss Turnbuckle Tightenting Technique; dynamic tuning under sail. Running backstays Sails and Rigging- Standing and Running Forums. Experience helps, of course, and a multiple-spreader fractional rig is harder to tune than an old tree-trunk of a masthead rig. It may be split in two main Groups: The masthead rig and the fractional rig:. Sail Trim and Rig Tuning The seminar will begin at 7:00pm with registration at 6:45 at Johnson City High School on Reynolds Road in Johnson City. I know that if the Rig type, LR, SR or TR doesn't match the Jib's cut, performance will suffer. The lower the better. S ailboat rigging on a sailboat is the collection of apparatuses through which the force of the wind is transferred to the ship, in order to propel it forward. The table shows relative predicted speed of each model compared to one of eight "control" J/Boats, each in a different speed range, whose actual performance has become widely known in many PHRF areas over many years. This creates a headsail area that is a fraction of what it would be if the forestay were attached all the way up the mast. To fully understand how to tune the rig, first take a step back and look at what the goal of rig tuning is. How to Tension and Tune your Standing Rigging A year ago we replaced all our standing rigging with Dynex Dux. This is a contracted version of her bigger sister but maintains beam and height, so that the interior retains comfort and functionality for weekending. That laid back atmosphere continues to the people who sail them. Ivar Dedekams revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. Petersburg, FL. alongside “Hints and advice”, as it has an alphabetical index and illustrations of most of the components of a rig. This special Web Feature issue of Model Yachting Magazine features ideas for Hardware and Rigging of your model yachts. VSP Lightning Tuning Guide. It lifts up a wire or rope backstay to allow for free passage of a full roach mainsail. Even though backstay-less rigs have been well proven over many years and continue to be used in numerous high performance applications, some sailors question the design. The SA/D is 17. Rig tune and maintenance are frequently referenced in the racing world, but sometimes can intimidate cruisers and weekend warriors. 2005-12-18. If your boat does not have much of a mast ram, then your spreaders would do their best work about 45% to 50% (halfway) up the mast. Waterproof fold out. Includes everything you need to convert an Intex Mariner or Seahawk II, Fishman II 500, or Sevylor Caravelle, HF280, or HF360 to an inflatable sailboat. The boat should be in racing trim with a headsail and mainsail fully trimmed and the crew hiking. This is not the case. A beautifully, uniquely illustrated nautical guide to how to trim your sails and rig for maximum performance. The Ronstan 5/8” Jib track and cars are used on most M-Scows. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics. The SA/D is 17. Although just about every facet of sailing has been written about in great depth by many writers, rig tuning seems to be an exception. color illustrations. What’s in a Rig Series #2. The measurements and settings included are ones that we've found to be the. Another type of sailboat rigging is the fractional rig which sports a smaller headsail attached to a forestay fixed to the mast at some point down from the top. She was built by X-Yachts X-372 fractional rigging (X-Yachts) sailboat specifications and details on Boat-Specs. Experience helps, of course, and a multiple-spreader fractional rig is harder to tune than an old tree-trunk of a masthead rig. The top lighter crews sail with a slightly less powered rig with spreader deflection of 150mm. From fore and aft mast bend to lateral bend, to matching sail shape through a wide wind range on all three rigs, to correct mast rake, and rig height, it all needs to be in tune. aspx New Loos Tension Gauge Pro Model # pt-2 tune your sailboat rigging How to tune a sailboat mast | the rigging company, Here are some general guidelines for tuning your mast’s standing rigging. Essentially, a fractional rig has the forestay attached to a point a ways below the top of the mast, instead of the top (or close to it). Please ring if you need further information BEFORE YOU START Sail Care Avoid allowing the sails to flap unnecessarily. Mast is stepped on the keel and hinged for trailering or storing. solingonemeter. The Viper was upgraded in 2006 with […]. Sail and Rig Tuning – Ivar Dedekam E-book (ePub fixed format – click on image). S#: S# is a guide to probable boat performance vs. Flattening your sail is the solution if you want to go closer to the. Her stick is nearly 4′ taller than a masthead. Using a clew hook makes it easy to clip on the outhaul, the outhaul should be clipped on after the inhaul and clew strap are fastened. These steps will assist in boosting performance and improving safety. This is because the shrouds act as backstay tension instead of a standard backstay. A tried and true performer built from low stretch durable hard finish 3. They are also generally available on-line. Transverse Tune. The top teams will adjust this between races, as conditions change. Once this is achieved, refinement of the tuning will improve the boat’s performance by changing the balance of the helm and, more importantly, by controlling sail shape. 22 · Rating details · 45 Ratings · 2 Reviews. This beautifully illustrated and well-organised book shows the reader step by step, how to trim their sails and rig for maximum performance. Tuning the Rig The objective is to adjust rigging so that the mast is straight under most conditions. When the rig is tensioned properly for upwind sailing the leeward shroud just starts to go slack (definitely not "dangling"). If the mast is not dead upright athwartships then the yacht will not sail equally well on either tack. I know for example that our boat is set-up with a Loose Rig, with a jib measurement very close to 35 inches. Once this is achieved, refinement of the tuning will improve the boat's performance by changing the balance of the helm and, more importantly, by controlling sail shape. I'm assuming that your boat is a fractional rig and therefore the designer added the running backs to help support the uppermost portion of the sail plan. With a revolutionary approach. With a revolutionary approach, this guide tackles the practical and realistic elements of tuning your boat, plus the theory of sail aerodynamics. Marlow Hunter, LLC reserves the right to modify or change, without notice, any aspect of our boats including (but not limited to) any materials, specifications, equipment, special offers, promotions, and/or accessories. Rig tension and lowers may not be adjusted whilst sailing. pdf: Accastillage pour voiles Seldén: Rigging instructions & sailmakers guide. heavy air the rig must be manipulated to enhance the sail shapes for those conditions. Yet easy to sail. It may be split in two main Groups: The masthead rig and the fractional rig:. You can also check out the North Sails Tuning Guide. Although not prescriptive, regular inspections of rigging are already mandated in exis regulations. In reality, it is not that hard as Mark Mansfield, Professional sailor and racing consultant/agent for UK sails Ireland, describes below in the first part of a series of 'How To' articles. In addition, the mainsail and jib can be in a sail bag located F&A where their cg is located. Ivar Dedekam’s revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. Illustrated Sail & Rig Tuning: Genoa & mainsail trim, spinnaker & gennaker, rig tuning (Illustrated Nautical Manuals) [Ivar Dedekam] on Amazon. J/29 high performance sailboat- Technical specifications & dimensions- including layouts, sailplan and hull profile. Boom vang, outhaul, reefing system, and cunningham are standard. color illustrations. Ivar Dedekam's revolutionary approach to sail and rig tuning tackles the practical and realistic elements of tuning your boat as well as the theory of sail aerodynamics. Launched in January 2008 and sporting a conventional rig, "Copernicus" sails from the same club at Manly. Sailboat and sailing yacht searchable database with more than 8,000 sailboats from around the world including sailboat photos and drawings. The first objective in tuning a rig is to get the mast centered in the boat and standing straight. The mast is slightly raked but has a very slight 's' curve when viewed from the side. A CLASS SAILS. It's very dependent on the boat design, the conditions you sail in, what you plan to do with. If you have a rig that bends, you have a powerful tool for changing the shape of the mainsail. It is assumed that PHRF crew weight limits, if any, shall apply equally to all types of boats racing in a given PHRF area, and that One Design designation only applies to the boat, rig and sails. Achieve optimum sail trim and boat speed on and off the wind. On certain fractional rigs , the upper and lower shrouds lead to chain plates that are aft of the mast. Start studying USPS Sail - Chapter 12 Tuning the Rig. Please ring if you need further information BEFORE YOU START Sail Care Avoid allowing the sails to flap unnecessarily. The fractional rig with roller reefing is quite good for short handed sailing, as you have a smaller Genoa and larger Mainsail, which makes short tacking and winching the Genoa easier. The document has moved here. She was built by X-Yachts (Denmark) and made of sandwich fiberglass / polyester with galvanized steel frame. Tuning Guides for North Sails. 22 · Rating details · 45 Ratings · 2 Reviews. Rigging Mast and boom are aircraft-grade aluminum. Maine fishermen will have to optimize their gear and travel farther to catch warmer-water species by. Marine Supplies Since 1928!. your boat (hull or rigging) will suffer a breakdown if you use more than 400 pounds of rig tension. I just purchased a 37′ boat with a 3/4 fractional rig and a tapered mast. In lighter winds, you may not need to use them at all. Dieball Sailing Tuning Guide North Sails Tuning Guide Below are some time tested articles written on the Interlake and sailing in general. Dock Rig Tune. A Twin cam/ cambered sail often delivers more stability and power compared to a No cam sail and is more forgiving and easier to handle compared to a Full cam sail. The water leaving the stern is reasonably smooth with very few bubbles. The rake measurement should still set very close to the 28’ 4”-28’ 5”.