This book demystifies the skill of good sail trim with the aid of superb color. In the last ten years we have actively been involved in j80 racing, in order to develop sails and sail trim. I hope the following will help you better understand the connection between the science and sail trimand theres plenty more detail in the book. Faq gift vouchers yacht management books insurance downloads. Apr 27, 2016 putting highquality sails on your boat is a great start. From the pages of sail magazine, comes the first new anthology in nearly 15 years on the popular subject of sail trim. Sail trim theory 101 mains, jibs and rigs created for mcsc by nicholas hayes, team syrena, us 46409 the simple rules of telltales. Trim your main properly so the boat sails more efficiently and provides the crew with a comfortable ride. Rya sail trim handbook for cruisers by rob gibson, 9781906435578, available at book depository with free delivery worldwide. The chart tells you what to do and the book tells you why you are making a particular sail trim. Check out the new look and enjoy easier access to your favorite features. We describes sails in this ideal state as on the verge of luffing. Later, in chapter 8 we will integrate main trim, jib trim and driving techniques in a variety of sailing conditions 6.
Discover how you can gain instant access to hundreds of sailing articles, videos, free e books and much more. On most boats, this line or wire cable passes around a block pulley down into the boom, as shown in this photo. A sail s luff should face directly into the wind so that air streams evenly on both sides. What sailing control gets overlooked more than any other aboard most any sailboat. Ease the outhaul to power up your mainsail in light air or on reaches. Youll find easy stepbystep tips and techniques and dozens of illustrations to make sail trim. The main sail traveller is normally amidships and the main sheet is fairly tight. Buy the best of sail trim revised edition by sail magazine, mason, charles isbn. The application explains what happens when one is playing around with the various trimming functions on a sailboat. The outhaul starts at the car, leads through the clew block on the sail, back to the sheave on the car, and into the boom where it leads to a winch. The rya sail trim handbook for cruisers, written by rob gibson, illustrated by andrew simpson, focuses on the needs of the cruising sailor and is crammed full of useful tips and pointers on one of the fundamentals of good seamanship. This tactical advice is all mixed in with sail trim and how to get the best from your boat, which is music to the racing mans ears.
The outhaul on a sailboat is one of the controls, part of the boats running rigging. The controls that most directly affect the trim of the mainsail are the mainsheet, the main traveller, the boomvang, the outhaul and the backstay. Fundamental sail trim and balance with kristen kb berry 2. We do not feel it is advantageous to loosen the outhaul more than this when sailing upwind. With detailed instructions, illustrations, and photos, these downloadable guides are a musthave resource for every sailor. This required versatility is achieved by adjustment and trimming. The experiences it gave us we have summarized in this second version of our trim guide. Learn how angle of attack, depth and twist effect performance. The best of sail trim by sail book and a great selection of related books, art and collectibles available now at. Mainsails that furl into the mast are loosefooted and usually have a ball bearing outhaul car that rides the length of the boom.
Surprisingly, this was the very first james patterson book i read, and before reading it, i was not into reading books at all, not since i was much younger, in high school. The sailmakers said that they had added some shape. Take our learn to sail course and learn the proper way to trim sails. A former americas cup winner shares tips on getting the most from your headsail. You can change the shape, and therefore the power, in your sail with the sheet, vang, outhaul, and cunningham. In light to moderate conditions when you need power and helm, ease the outhaul until the sail is 50mm75mm from maximum tension and the foot shelf is partially relaxed. Sail trim ian short sails high performance racing and. The basic principles and their relationship to sail trim upwind sail trimming basic principles m ost people assume that there is an ideal trim setting for every given sailing situation. If its loose enough to make connecting the clew easy, then it isnt tight enough for moderate to heavy winds. Heres the situation you are sailing to windward in 5 to 15 knots of wind in a relatively small choppy seas.
See how changes in pole position change spinnaker shape. The nautical mind bookstore has been delivering personal and professional service from our storefront in toronto harbour since 1980, and from since 1995. Conversely, the sail will probably need to be trimmed in lulls. Unfortunately, there is not an easy guide for jib trim. Outhaul a tighter outhaul flattens the bottom 3rd of the sail and opens lowest batten so its not hooking to windward. Trim down to eight inches apart on mainsheet blocks.
More tension on the cunningham than on the outhaul if sailing in choppy water. Aug 31, 2012 i have some new crew racing this year and i wanted to get them some good books on racing sail trim. In this series, quantum sails expert david flynn shows you how to get the most out your sails with the right trim, starting with the mainsail. The most complete book on modern sailing performance. Best sail trim tactics book for racing sailing anarchy. Find all the books, read about the author, and more. Flatter sail shapes generate less power and less drag. Setting up the rad rig by ryan eric minth aka mr cvane. Mainsails must perform over a wide variety of sailing conditions. By letting off the boom, outhaul, cunningham or downhaul and the mainsheet before hoisting the mainsail, you are releasing any impediment to the hoist. You got a sail with a moderate roach, four battens to support that roach, a few reefs and some sail trim devices, like a cunningham or a flattening reef.
Sail trimming is something that you practice while sailing. Here, says pro rigger erik shampain, is where purchase and line choice count. The kindle version was a pita to use on the boat while underway. Jun 08, 2012 best book that ive read by far is frank bethwaites book high performance sailing. A boom downhaul is one of the three possible control lines for the three sides of the mainsail. Sail trim theory created for mcsc by nicholas hayes, team syrena, us 46409 milwaukee community sailing center advanced sail trim theory spinnakers and speeds march 2015 prepared by nicholas hayes syrena, us 46409. Everyday low prices and free delivery on eligible orders. Maximize sail power with this hidden mainsail control. Read more about sail trim in the rya sail trim handbook for cruisers available from the rya shop. Get north u sail trim simulator ios at the app store. Apr 07, 2000 this beautifully illustrated and wellorganised book shows the reader step by step, how to trim their sails and rig for maximum performance. This is theoretically true, but involves balancing many factors according to conditions and performance goals. Mark 6 version of the radial sail was released over two years ago and has almost completely. Four session course lead by north u director bill gladstone available live and as ondemand recording.
Illustrations from the rya sail trim handbook for cruisers rob gibson. More tension on the outhaul than on the cunningham if sailing in flat water. You may be surprised to know that this sail trim device can power up your mainsail in light air or help balance your sailboat in heavy air. The wheel or tiller should require no more than three or four degrees to maintain a course in any sailing weather. My boat was a c30 1981 and to get inside the boom it is near impossable to get the boom end caps off without breaking one of them.
The sails should be trimmed on the sheet so that the telltales all the way up the sail are flowing horizontally. The other two are the boom vang controls leech tension and the mainsail outhaul controls foot tension. The sail helps to steer the whole sailplan, functioning a lot like a trim tab on a keel or a flap on an airplane wing. You want to set the genoa trim first, then work on the main. In this new book i have tried to distil those rules of thumb and theories pertaining to sail trim and rig tuning commonly agreed upon among the sailing community. Most people can easily understand that a sailboat can sail downwind. Genoa trim guide on most modern boats, masthead rigs in particular, the genoa provides the most driving power, acting as the motor while the mainsail serves as rudder. If the telltales hang down, or if the leeward telltale spins, the sail is overtrimmed. Here good grip, some flexibility are most important.
For downwind sailing, leave the outhaul on in the tensioned position for maximum sail area. Sail design is continuously developed and our exciting models are vigorously tested in our design programs. A new app shows what happens when you are trimming the sail. If the sail is trimmed properly, you will get the maximum amount of power out of the sail and if not trimmed properly, the sail could stall and your boat speed will suffer. Discuss this video and anything sailing on my forum. Most people can kind of rig the sail correctly but are either unsure, or just plain dont know how to tune a windsurf sail. By nature, a mainsail is the most durable and flexible sail in any inventory.
Having said that, though, a new sailor will learn and benefit from reading hahnes book. Catalina 22 and similar sailboats have a short length of line attached to the bottom of the gooseneck car on the boom that ties off to a cleat at the base of the mast as shown below. They are not beginner sailors, but not hardcore racers either yet and i want to put something in their hands to help jumpstart their learning. By tom whidden one of the goals for our book, the art and science of sails, is to connect the theoretical with the practical. Sail trim made easy learn to sail sailing tips you. This article covers camber, which is part 2 of a fourpart unit on shaping your sails. Ultimately this book will have you itching to get back afloat and tinkering with the trim of your sails. This book covers all aspects of sail trim including basic settings and when to modify them. It has to cover an incredible range of wind conditions, plus stretch and twist into almost every shape possible. Sail trim books i bookshop hamble school of yachting. Boat heel trim keep the boat flat hike first, then think sail controls for depowering if the if the boat heels, it will create weather helm.
Look at the jibs leading edge, or luff, as you begin to determine its trim. And, since the main was always front and center for me, i was constantly studying it, ensuring my mainsail trimmer was doing hisher job. I had tried to get back into reading over the years, but just didnt take the time to do so. Sail tuning is one of the skills that gets overlooked during the learning process of windsurfing. Sail trim is one of the most important skills in sailing, but because the wind is invisible, it can sometimes be difficult to judge whether your sails are trimmed properly. Why not have a collection of short cut to the chase articles that are easy to read and understand. Get north u sail trim simulator android at the play store. This article covers controlling twist, which is part 4 of a fourpart unit on shaping your sails. The book sail abebooks abebooks shop for books, art. 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. The outhaul is a line that connects to the clew of the mainsail the ring in the lower aft corner and pulls the sail back toward the end of the boom. Outhaul systems harken sailboat hardware and accessories.
This book demonstrates the skill of good sail trim with the aid of superb colour diagrams and photographs, to enable racers and cruisers alike to sail efficiently. The main always seems full, but the telltales along the leech dont stream aft, they actually appear to be pointing forward along the leeward side of the sail. When overpowered on a reach, tension the outhaul as you did for upwind. Easy to handleless sails, less lines, so there is instant gratification for new sailors. Ease until the sail just begins to luff and trim just enough to stop luffing, or ease until the middle telltales flow straight aft. I could get all three tell tails on the leach to stream only as the luff started to shiver sometimes fairly deep.
The difference between midfleet and podium is just a couple percent. I was at a book store and sail happened to catch my eye on the book stand. Here we list five great books for those of you keen to improve your sail trim and how to be first back to the marina every time. In the old days, your sailmaker offered you one kind of mainsail, and sailors were generally happy with the result.
A video on main sail outhaul adjustment and principle. Downloadable sail trim guides articles quantum sails. There is occasionally some confusion with respect to mainsail area. An outhaul is a line which is part of the running rigging of a sailboat, used to extend a sail and control the shape of the curve of the foot of the sail. Laser cunningham how to trim international laser class. But how can sailing boats sail forwards with the wind coming from the side or even obliquely from the front. Sail trim and balance the big question one language two modes three sources of power controls balance putting it all together 3. The trim book gives complete coverage to upwind and downwind sail trim and boat handling, including mainsail and genoa trim, helming and the trim and. Outhaul this is our rope advice for an outhaul on your. It is important to trim the sails to be as powerful as possible. General rules of mainsail trim adjust halyard to just remove horizontal wrinkles adjust sheet tension so top batten is parallel to the boom adjust traveller to get the telltales flying top one most of the time adjust outhaul for correct depth check draft position, adjust halyard maybe. Each option will change the draft shape depth of your sail, and.
Tighten the outhaul until the wrinkles are just removed. Good sail trim can mean the difference between winning and losing a race or reaching harbor before the tide turns. Sep 01, 2005 the difference between books on sail trim and theory really comes down to the graphics used to help in explanation. Trim your boat with this in mindbalance and harmony equal peak performance. The race pack includes both the racing tactics book and racing tactics usb and the. A laser taining manual callala junior sailing school. While your talking to her ask her about my sail trim chart, which identifies all points of sail and wind conditions and gives you the settings for your mainsail and jib plus a whole bunch more sail trim stuff. The outhaul is usually only eased all the way off approximately 100mm from maximum tension when sailing off the wind. Sail trim books sailing anarchy sailing anarchy forums. In fact, it is the main control for draft depth belly. Test the helm after you make any sail trim adjustment. If you take the time to cinch it up tight, youll have to untie it to take the sail off if you trailer sail. Im trying to learn how they are going to trim andor if i need to have any changes made. Get the critical increment of fast at a north u trim webinar.
Please refer to basic sailing and cruising skills or other learnto sail book if you dont have mine yet for a more detailed explanation of the basics each of these sail controls. A very helpful way to detect wind flow around your sails and adjust your sails or change course accordingly, is with telltales. This is proper trim for heavy winds when the boat is overpowered. The sail trim controls outlined in the quiz are standard on most mast head rig boats and their function should be understood by every sailboat owner. We are licensed chart agents and distributors of imo and many other publications. If you are anything like me, most sail trim books can make your head spin and your eyes roll back in your head. A badly tuned windsurf sail can make the experience of windsurfing unpleasant. We designed and engineered your new super genoa to be easy to set and trim, and. Trimming in harder also can bend the mast to broaden the leech to luff and flatten sail, reducing power. In light winds the center of this seam should be 1 to 2 from the boom.
That is a problem because the outhaul is one of the most important mainsail sail trim controls. The user can select the sail he wants to trim mainsail or headsail. Most sailmakers, including us, compute mainsail area as if the sail were a right triangle with three straight edges. In simple terms, the wind pushes the sail and drives the boat forwards. However, there is a learning curve, as the vessel is hard to learn to sail well, so there is still a challenge for more advanced sailors. Everything you always wanted to know about sail trim.
Sailzing stimulating learning for racing sailors through. This was one of the first books i read about sail trim and i nearly gave up the sport on the spot. In particular, the aft part of the main, the leech, is an important influence on the directional tendency of the boat. Discover delightful childrens books with prime book box, a subscription that delivers new books every 1, 2, or 3 months new customers receive 15% off your. Print them and keep them on your boat, reference them as needed for unusual conditions, or to teach the new guy on the boat how to approach trim. Enjoy captain johns newest ebook on how to get your sailboat to sail faster. The trim book gives complete coverage to upwind and downwind sail trim and boat handling, including mainsail and genoa trim, helming and the trim and handling of both conventional and asymmetric spinnakers. That excess sailcloth has to roll up in the same space as when it was new. Tips for handling and adjusting sails how to trim sails upwind in this sailing basics video you learn how to properly trim sails when sailing upwind. On a laser, you have only a few trim lines you can adjust during sailing. Increased outhaul tension flattens the sail for heavy winds, easing the outhaul allows a fuller sail for lighter airs. Download the pcmac desktoplaptop version from our downloads page. The clew outhaul controls the depth of the lower parts of the sail. Address mercury yacht harbour, satchell lane, hamble.
The mainsail can be adjusted to vary the amount and location of draft, and trimmed to control the shape of the leech and its angle to the wind. Conglomerating clippings from the magazine produced a very uneven book, sometimes conflicting, and frequently pitched to people of widely different experience. A guide for racing covers the principles of sail trim, crew movement techniques, maneuvers, and control systems, and gives advice on adjusting to special conditions. Definition of trim your sails in the idioms dictionary. Suggest buying a carbonbased version so you can have the book out while practicing. We can call this the sail s presentation to the wind. It runs from the clew the back corner of the sail to the end of the boom. Our trimming efforts aim at making the entire sail, from foot to head, present to the wind evenly and at the correct angle. The line is pulled taut to the appropriate tension to provide the desired shape to the foot and then secured to a cleat on the boom. Do not be afraid to let the sail out until it is against the shrouds and spreaders just make sure the boom vang is on tight enough. With 44 articles that have never before appeared in book form, the new book of sail trim provides concise, easytounderstand instruction in every facet of sails and sail. The mainsail will need to be eased further than you think. This book demystifies the skill of good sail trim with the aid of superb color diagrams and photograph.
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